Busbar trunking system
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual • 09/2011
Low-Voltage Power Distribution and
Electrical Installation Technology
Answers for infrastructure.
SIVACON 8PS - Planning with
SIVACON 8PS
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Low-voltage power distribution and
electrical installation technology
Busbar trunking system
SIVACON 8PS - Planning with
SIVACON 8PS
Planning Manual
Busbar trunking systems up to 6300 A
09/2011
A5E01541101-02
System overview
1
Planning principles
2
Planning with BD2
3
Planning with LD
4
Planning with LX
5
Planning with LR
6
Further information about
planning
7
Glossary
A
Legal information
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
NOTICE
indicates that an unintended result or situation can occur if the relevant information is not taken into account.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E01541101-02
Ⓟ 11/2011
Copyright © Siemens AG 2007.
Technical data subject to change
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 3
Table of contents
1 System overview........................................................................................................................................ 9
1.1 Overview of Siemens busbar trunking systems.............................................................................9
1.2 CD-K system................................................................................................................................13
1.3 BD01 system................................................................................................................................17
1.4 Networked busbar trunking systems for industrial and building applications ..............................20
2 Planning principles................................................................................................................................... 23
2.1 Structure of the planning manual.................................................................................................23
2.2 Busbar trunking system planning.................................................................................................24
2.2.1 Principles of busbar trunking system planning ............................................................................24
2.2.2 Different types of busbar trunking systems and their functional scope .......................................26
2.2.3 A comparison of busbar trunking systems and cable trunking ....................................................28
2.2.4 Planning guidelines......................................................................................................................30
2.3 Rated currents and short-circuit currents of standard transformers ............................................32
2.4 System selection criteria ..............................................................................................................33
2.4.1 Technical data of the systems .....................................................................................................33
2.4.2 Areas of application for high-current systems..............................................................................36
2.4.3 Selection on the basis of rated transformer data.........................................................................37
3 Planning with BD2 ................................................................................................................................... 39
3.1 System description.......................................................................................................................39
3.2 System components ....................................................................................................................40
3.2.1 Preliminary remark for specifications...........................................................................................40
3.2.2 Type code ....................................................................................................................................42
3.2.3 Straight trunking units ..................................................................................................................45
3.2.4 Junction units ...............................................................................................................................46
3.2.5 Feeder units .................................................................................................................................49
3.2.5.1 End feeder units...........................................................................................................................49
3.2.5.2 Centre feeder units ......................................................................................................................51
3.2.6 Distribution board feeder..............................................................................................................52
3.2.7 Coupling units ..............................................................................................................................53
3.2.8 Tap-off units .................................................................................................................................54
3.2.8.1 Tap-off units up to 25 A................................................................................................................54
3.2.8.2 Tap-off units up to 63 A................................................................................................................55
3.2.8.3 Tap-off units up to 125 A..............................................................................................................57
3.2.8.4 Tap-off units up to 250 A..............................................................................................................59
3.2.8.5 Tap-off units up to 400 A..............................................................................................................60
3.2.8.6 Tap-off units up to 530 A..............................................................................................................61
3.2.9 Ancillary equipment units.............................................................................................................62
3.2.10 Additional equipment ...................................................................................................................63
3.2.10.1 Additional equipment for increased degree of protection IP54 and IP55 ....................................63
3.2.10.2 Fixing accessories .......................................................................................................................63
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3.3 Technical data............................................................................................................................. 65
3.3.1 BD2 general data ........................................................................................................................ 65
3.3.2 Tap-off units ................................................................................................................................ 66
3.3.3 Trunking units BD2A (aluminium) ............................................................................................... 66
3.3.4 Trunking units BD2A (copper)..................................................................................................... 69
3.4 Conductor cross sections............................................................................................................ 73
3.4.1 Feeder units ................................................................................................................................ 73
3.4.2 Tap-off units ................................................................................................................................ 75
3.5 Dimension drawings.................................................................................................................... 77
3.5.1 Straight trunking units ................................................................................................................. 77
3.5.2 Junction units .............................................................................................................................. 78
3.5.3 Distribution board feeder............................................................................................................. 83
3.5.4 End feeder units .......................................................................................................................... 84
3.5.5 Cable compartments ................................................................................................................... 88
3.5.6 Centre feed ................................................................................................................................. 89
3.5.7 Tap-off units ................................................................................................................................ 90
3.5.7.1 Tap-off units up to 25 A............................................................................................................... 90
3.5.7.2 Tap-off units up to 63 A............................................................................................................... 92
3.5.7.3 Tap-off units up to 125 A............................................................................................................. 95
3.5.7.4 Tap-off units up to 250 A............................................................................................................. 98
3.5.7.5 Tap-off units up to 530 A............................................................................................................. 99
3.5.8 Ancillary equipment units .......................................................................................................... 100
3.5.9 Additional equipment................................................................................................................. 101
4 Planning with LD.................................................................................................................................... 107
4.1 System description.................................................................................................................... 107
4.2 System components.................................................................................................................. 108
4.2.1 Preliminary technical descriptions for specifications................................................................. 108
4.2.2 Type code.................................................................................................................................. 110
4.2.3 Sizes, conductor configurations and structure of the busbar package ..................................... 111
4.2.4 Straight trunking units ............................................................................................................... 114
4.2.5 Junction units ............................................................................................................................ 117
4.2.6 Distribution link for Siemens power distribution boards............................................................ 119
4.2.7 Connection unit for non-Siemens distribution boards ............................................................... 120
4.2.8 Connection unit for transformers and distribution boards ......................................................... 121
4.2.9 Incoming cable connection unit................................................................................................. 122
4.2.10 Coupling units ........................................................................................................................... 123
4.2.11 Tap-off units .............................................................................................................................. 124
4.2.11.1 Tap-off units with fuse switch disconnector .............................................................................. 125
4.2.11.2 Tap-off units resistant to accidental arcs and with fuse switch disconnector ........................... 126
4.2.11.3 Tap-off units with circuit-breakers ............................................................................................. 127
4.2.12 Additional equipment................................................................................................................. 129
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4.3 Technical data............................................................................................................................130
4.3.1 LD general data .........................................................................................................................130
4.3.2 LDA.4.. trunking units (4-pole, aluminium).................................................................................131
4.3.3 LDA.6.. trunking units (5-pole, aluminium).................................................................................132
4.3.4 LDC.4.. trunking units (4-pole, copper)......................................................................................135
4.3.5 LDC.6.. trunking units (5-pole, copper)......................................................................................136
4.3.6 Feeder units ...............................................................................................................................138
4.3.7 Tap-off units with fuse switch disconnector ...............................................................................140
4.3.8 Tap-off units resistant to accidental arcs and with fuse switch disconnector ............................141
4.3.9 Tap-off units with circuit-breaker................................................................................................142
4.4 Weights ......................................................................................................................................144
4.5 Dimension drawings...................................................................................................................145
4.5.1 Trunking units.............................................................................................................................145
4.5.2 Tap-off units with fuse switch disconnector ...............................................................................146
4.5.3 Arc fault resistant tap-off units with fuse switch disconnector ...................................................147
4.5.4 Tap-off units with circuit-breaker................................................................................................148
4.5.5 Additional equipment .................................................................................................................150
5 Planning with LX.................................................................................................................................... 151
5.1 System description.....................................................................................................................151
5.2 System components ..................................................................................................................152
5.2.1 Preliminary remark for specifications.........................................................................................152
5.2.2 Type code ..................................................................................................................................155
5.2.3 System sizes and structure........................................................................................................156
5.2.4 Conductor configuration.............................................................................................................158
5.2.5 Straight trunking units ................................................................................................................159
5.2.6 Junction units .............................................................................................................................160
5.2.7 Distribution link for Siemens power distribution boards.............................................................162
5.2.8 Connection unit for non-Siemens distribution boards................................................................163
5.2.9 Connection unit for transformers and distribution boards..........................................................164
5.2.10 Incoming cable connection unit..................................................................................................165
5.2.11 Tap-off units and junction boxes................................................................................................166
5.2.11.1 General information ...................................................................................................................166
5.2.11.2 Tap-off units ...............................................................................................................................167
5.2.11.3 Tap-off units ...............................................................................................................................168
5.2.11.4 Tap-off units with fuse switch disconnector up to 630 A............................................................169
5.2.11.5 Tap-off units with circuit breaker up to 630 A and junction boxes with circuit breakers up
to 1250 A....................................................................................................................................170
5.2.12 Additional equipment .................................................................................................................171
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5.3 Technical data........................................................................................................................... 173
5.3.1 LX general data......................................................................................................................... 173
5.3.2 Trunking units LXA..30 (aluminium).......................................................................................... 174
5.3.3 Trunking units LXA..41 (aluminium).......................................................................................... 176
5.3.4 Trunking units LXA..51 (aluminium).......................................................................................... 178
5.3.5 Trunking units LXA..52 (aluminium).......................................................................................... 180
5.3.6 Trunking units LXA..61 (aluminium).......................................................................................... 182
5.3.7 Trunking units LXA..62 (aluminium).......................................................................................... 184
5.3.8 Trunking units LXC..30 (copper) ............................................................................................... 186
5.3.9 Trunking units LXC..41 (copper) ............................................................................................... 188
5.3.10 Trunking units LXC..51 (copper) ............................................................................................... 189
5.3.11 Trunking units LXC..52 (copper) ............................................................................................... 191
5.3.12 Trunking units LXC..53 (copper) ............................................................................................... 193
5.3.13 Trunking units LXC..54 (copper) ............................................................................................... 195
5.3.14 Trunking units LXC..61 (copper) ............................................................................................... 197
5.3.15 Trunking units LXC..62 (copper) ............................................................................................... 200
5.3.16 Fire load for trunking units without tap-off points ...................................................................... 201
5.3.17 Fixing distances ........................................................................................................................ 202
5.3.18 Connection units for non-Siemens distribution boards ............................................................. 203
5.3.19 Tap-off units .............................................................................................................................. 204
5.4 Dimension drawings.................................................................................................................. 206
5.4.1 Trunking units............................................................................................................................ 206
5.4.2 Tap-off units .............................................................................................................................. 207
5.4.2.1 Tap-off units with circuit-breaker............................................................................................... 207
5.4.2.2 Tap-off units with fuse switch disconnector .............................................................................. 209
5.4.3 Additional equipment................................................................................................................. 210
6 Planning with LR.................................................................................................................................... 213
6.1 System description.................................................................................................................... 213
6.2 System components.................................................................................................................. 215
6.2.1 Preliminary remark for specifications ........................................................................................ 215
6.2.2 Type code.................................................................................................................................. 218
6.2.3 System sizes and structure....................................................................................................... 219
6.2.4 Conductor configuration and sizes............................................................................................ 221
6.2.5 Straight trunking units ............................................................................................................... 222
6.2.6 Junction units ............................................................................................................................ 223
6.2.7 Distribution board connection for Siemens power distribution boards...................................... 225
6.2.8 Connection unit for non-Siemens distribution boards ............................................................... 225
6.2.9 Connection unit for transformers and distribution boards ......................................................... 226
6.2.10 Incoming cable connection unit................................................................................................. 228
6.2.11 Tap-offs for power distribution................................................................................................... 229
6.2.12 Additional equipment................................................................................................................. 230
6.3 Technical data........................................................................................................................... 232
6.3.1 LR general data......................................................................................................................... 232
6.3.2 Trunking units LRA..41 (4-pole, aluminium).............................................................................. 233
6.3.3 Trunking units LRA..51 (5-pole, aluminium).............................................................................. 236
6.3.4 Trunking units LRC..41 (4-pole, copper)................................................................................... 239
6.3.5 Trunking units LRC..51 (5-pole, copper)................................................................................... 242
6.4 Dimension drawings.................................................................................................................. 245
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7 Further information about planning ........................................................................................................ 247
7.1 Dimensioning and selection.......................................................................................................247
7.1.1 Determining the voltage drop.....................................................................................................247
7.1.2 Overload protection and short-circuit protection........................................................................251
7.1.3 Loop impedance ........................................................................................................................252
7.1.4 Degrees of protection for busbar trunking systems ...................................................................252
7.1.5 Degrees of protection for electrical equipment in accordance with IEC / EN 60529.................253
7.1.6 Distribution systems...................................................................................................................254
7.2 Planning example ......................................................................................................................256
7.3 Functional endurance ................................................................................................................258
7.3.1 Applicable regulations................................................................................................................258
7.3.2 Versions .....................................................................................................................................259
7.4 Fireproof barrier .........................................................................................................................261
7.4.1 Versions .....................................................................................................................................262
7.4.2 Cut-outs......................................................................................................................................264
7.5 Planning runs .............................................................................................................................265
7.5.1 Space requirements for horizontal installation...........................................................................265
7.5.2 Space requirements for vertical installation ...............................................................................267
7.5.3 Fixing brackets for vertical mounting .........................................................................................268
7.5.4 Fixing brackets for horizontal installation...................................................................................271
7.5.5 Carrier constructions..................................................................................................................273
7.6 Magnetic fields ...........................................................................................................................275
7.7 Sprinkler test ..............................................................................................................................280
7.8 Tools and services .....................................................................................................................282
A Glossary ................................................................................................................................................ 287
Index...................................................................................................................................................... 291
Table of contents
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Planning Manual, 09/2011, A5E01541101-02 9
System overview 1
1.1 Overview of Siemens busbar trunking systems
Figure 1-1 Overview of busbar trunking systems
① CD-K system ⑤ LX system
② BD01 system ⑥ LR system
③ BD2 system ⑦ Communication-enabled busbar trunking systems
④ LD system
System overview
1.1 Overview of Siemens busbar trunking systems
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10 Planning Manual, 09/2011, A5E01541101-02
Siemens supplies the following busbar trunking systems:
Up to 40 A
CD-K system
● Lower planning costs thanks to simple configuration
● Time-saving installation thanks to plug-in quick connector
● Optimum utilisation of the busbar line by fitting tap-off points on both sides
● Uniform current load of the CD-K system conductors by distributing the downstream tap-
off plugs between the individual phases
● IP54 protection as standard (IP55 with additional equipment) ensures versatility of use
● Tap-off plugs make for speed and flexibility when changing load locations
For further information: see also CD-K system (Page 13) , catalogue LV 70
Up to 160 A
BD01 system
● Flexible power supply
● Variable junction units
● Quick and easy to plan
● Time-saving installation
● Reliable mechanical and electrical connection technology
● High stability and low weight
● Positive opening and closing of the tap-off point
● Versatile tap-off units
● Small number of basic modules
● Storage-friendly system
● High degree of protection (IP54) for side-mounted and downwards tap-off points under
extreme ambient conditions, IP55 with additional equipment.
For further information: see also BD01 system (Page 17) , catalogue LV 70
System overview
1.1 Overview of Siemens busbar trunking systems
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Networked busbar trunking systems
● Networked functional expansions for combination with established tap-off units
● Applications:
– Wide-area lighting control
– Remote control and signalling in industrial environments
– Consumption data acquisition for central power tap-offs
● KNX, AS-i, PROFIBUS bus systems
● Quick and easy to plan
● Flexibility in terms of expansion and changes
● Modular system
● Can be retrofitted to existing installations
● Simple contacting of the bus line using insulation displacement method
● Can be used with BD01, BD2, LD, LX systems
For further information: see also Networked busbar trunking systems for industrial and
building applications (Page 20) , catalogue LV 70
Up to 1250 A
BD2 system
● Quick and easy to plan
● Time-saving and efficient installation
● Reliable and safe operation
● Flexible modular system with simple solutions for every application
● Power distribution system can be planned at an early stage without an exact knowledge
of load locations
● Early readiness for operation thanks to quick and easy installation
● High degree of protection IP54 or IP55 for use in harsh industrial environments
● Innovative design: Omission of compensation elements to compensate for expansion
For further information: see also Planning with BD2 (Page 39) , catalogue LV 70
System overview
1.1 Overview of Siemens busbar trunking systems
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Up to 5000 A
LD system
The busbar trunking system for optimum power distribution in industry:
● Reliable and safe operation
● Quick and easy installation
● Space-saving compact design up to 5000 A in one enclosure
● Load feeders up to 1250 A
● IP34 degree of protection with air cooling (IP54 with sealed enclosure)
● Type-tested connection to distribution boards and transformers
For further information: Planning with LD (Page 107)
Up to 6300 A
LX system
The busbar trunking system for power transmission and distribution in buildings
● Reliable and safe operation
● Quick and easy installation
● Sandwich construction up to 5000 A (6300 A on request)
● Load feeders up to 1250 A
● High degree of protection IP54 or IP55 for use in harsh industrial environments
● Type-tested connection to distribution boards and transformers
For further information: Planning with LX (Page 151)
LR system
The busbar trunking system for power transmission under extreme ambient conditions (IP68)
● Reliable and safe operation
● Quick and easy installation
● Cast resin system up to 6150 A
● Safe connection to distribution boards and transformers
● High degree of protection IP68 for outdoor applications
For further information: Planning with LR (Page 213)
SIMARIS design dimensioning software
SIMARIS design makes dimensioning electrical power distribution systems easy, fast and
safe.
To download a free demo version of SIMARIS design and to find out more, please visit:
www.siemens.com/simarisdesign
System overview
1.2 CD-K system
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1.2 CD-K system
System overview
The system has been designed for applications from 25 A to 40 A. It provides an efficient
and flexible means of supplying power to lighting installations and small consumers. Typical
areas of application include warehouses, department stores, storage facilities or clean room
technology.
Rated current 2 x 25 A, 30 A, 40 A, 2 x 40 A
Rated operating voltage 400 VAC
Degree of protection IP54, IP55
Spacing of tap-off points every 1 m on one side
every 0.5 m on both sides
Rated load feeder current Up to 16 A
System overview
1.2 CD-K system
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4
4
5
5
1
3
3
5
2
5
2
1
5
2
4
3
NSV0_00035a
① Trunking unit
② Feeder unit
③ Tap-off plug
④ End cap
⑤ Additional equipment
Figure 1-2 System overview CD-K system
System overview
1.2 CD-K system
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Connection method
The assembly of the trunking units as well as the feeder units is implemented by a
straightforward and unmistakable plug-in connection. The PE path is established
automatically when the housings are connected. An interlock mechanism engages when
connecting the trunking units as well as the feeder units with the end caps. Two fixings
prevent a loosening of the connections. No expansion compensation is required.
Figure 1-3 Connection method CD-K system
Tap-off plugs
Insulated enclosed tap-off plugs enable access to the current supply via tap-off points on the
trunking units. They can be connected and disconnected by hand.
Figure 1-4 Tap-off plugs CD-K system
The tap-off plugs are available in 3 and 5-pole versions, with and without fuse as well as with
connecting cables or plastic cable sleeves.
System overview
1.2 CD-K system
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Fixing and mounting
The trunking unit profile allows attachment of fixing brackets which are also used for
installing lighting fittings. They can be attached to any position of the trunking unit. The
clearance between the suspension points is dependent on the load and may not exceed
max. 3 m.
Figure 1-5 Fixing bracket on trunking unit
System overview
1.3 BD01 system
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1.3 BD01 system
System overview
The BD01 busbar trunking system is designed for applications from 40 A to 160 A.
In the BD01 system, a single size supports 5 rated currents. In other words, all other
components can be used across the power range for all 5 rated currents.
Rated current 40 A, 63 A, 100 A, 125 A, 160 A
Rated operating voltage 400 VAC
Degree of protection IP54, IP55
Spacing of tap-off points every 0.5 m on one side
every 1 m on one side
Rated load feeder current Up to 63 A
Figure 1-6 System overview BD01 system
① Trunking unit ⑤ Ancillary equipment unit
② Feeder unit ⑥ Junction unit
③ Fixing bracket ⑦ End cap
④ Tap-off unit
System overview
1.3 BD01 system
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Connection method
The assembly of the trunking units – even with the end caps and feeder units – is fast and
inherently safe. The trunking units or end caps are simply inserted into the lower housing of
the joint block. Once the upper part of the joint block or end cap is fitted, a secure connection
is established by simply tightening the four screws.
Figure 1-7 Establishing a safe connection
Tap-off units
Tap-off units are available in four different sizes to connect the loads and also with various
components fitted, e.g. such as plugs, fuses, miniature circuit breakers or combinations of
the aforementioned.
Figure 1-8 Tap-off unit BD01 system
Ancillary equipment units offer additional space for decentral function expansions. Thus,
automation and control components can be installed directly on the busbar.
System overview
1.3 BD01 system
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Fixing and mounting
The BD01 busbar is installed edgewise, with the tap-off points on the side using fixing
brackets on the wall, ceiling or non-fixed installation. The mounting is implemented on the
connection points using a universal fixing bracket. The system can also be fitted flat with the
tap-off points pointing downwards. This reduces the required fixing interval by half.
Figure 1-9 Mounting the BD01 system
Fire protection
If the busbar trunking system is routed through a fire wall or ceiling, it must have fire
protection. Compliant with site requirements, Siemens offers fire protection class S90.
Ex-works equipment:
● External fire protection in the form of a kit for on-site mounting
Mineral mortar or fire protection mastic to seal the joints between busbar trunking system
and component must be provided by the customer.
Figure 1-10 Fire protection BD01-S90
The approval documentation for Germany can be ordered separately:
● Approval kit BD01-S90-ZUL-D
(approval certificate, wall signage and declaration of compliance)
System overview
1.4 Networked busbar trunking systems for industrial and building applications
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1.4 Networked busbar trunking systems for industrial and building
applications
The advantages of busbar trunking systems
The busbar trunking system has its advantages in the transport, distribution as well as
switching and protection with electrical energy.
Integration of automation and building systems engineering into the Siemens busbar trunking
systems results in further advantages and also increases the flexibility of the busbar trunking
system.
The combination of standard tap-off units with standard ancillary equipment units guarantees
enhancement in efficiency with the design, installation and operation.
The advantages of the system solution for planning
● Modular system
● Tested standard components
● Freedom in the selection of the bus system
● Use of most popular bus systems
The advantages of the system solution during commissioning
● Quick and simple installation
● Step-by-step commissioning possible
● Flexibility in terms of changes and expansions
The advantages of the system solution in operation
● Transparency of circuit states
● Energy costs recorded centrally
● Increase in system availability thanks to immediate detection of error location and type
● Preventive maintenance as operating hours and switching cycles are recorded
System overview
1.4 Networked busbar trunking systems for industrial and building applications
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System concept networked busbar trunking systems
The tap-off units available as standard for busbar trunking systems can be combined with
standard ancillary equipment units to create a system solution for networked busbar
trunking. For reasons associated with design, an ancillary equipment unit based on a BD01
ancillary equipment unit is used for the BD01 busbar trunking system. A universal ancillary
equipment unit suitable for the application in question is used for BD2, LD and LX systems.
Standard applications are factory-assembled prior to delivery by combining tap-off unit and
ancillary equipment unit as appropriate. The bus line for the transmission of data signals is
laid in a cable channel mounted on the trunking unit.
Figure 1-11 Switching and signalling with the BD2 system
System overview
1.4 Networked busbar trunking systems for industrial and building applications
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Planning principles 2
2.1 Structure of the planning manual
It is not by any means easy to plan a power distribution concept involving the dimensioning
of systems and devices. End user requirements have to be matched with the technical
capabilities of the manufacturer. This planning manual will provide assistance as you plan
and design the following busbar trunking systems from 160 A to 6150 A:
● BD2
● LD
● LX
● LR
Description of the individual systems
Each system has a dedicated chapter describing its technical characteristics and areas of
application. Illustrations of the individual busbar trunking system elements also appear. All
significant information relevant to the planning process is given particular emphasis and
explained in detail.
Further information
You will find advice to help you to develop a ready-to-use planning solution under "Further
information". These include specific dimensioning principles and detailed information about
topics such as fireproof barriers and functional endurance.
Siemens can offer a range of services and engineering tools to assist you in drafting your
specification. For an overview and explanation of functions and features, please see Tools
and services (Page 282).
Planning principles
2.2 Busbar trunking system planning
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24 Planning Manual, 09/2011, A5E01541101-02
2.2 Busbar trunking system planning
2.2.1 Principles of busbar trunking system planning
Decision-making criteria affecting the creation of the power supply concept
When drafting a planning concept for a power supply, in addition to the applicable standards
and regulations, you also need to clarify and address issues of cost and technology.
Accordingly, when dimensioning and selecting electrical equipment such as distribution
boards and transformers, rather than focussing on them individually, you need to aim to
optimise their performance as part of a combined system.
All components have to be dimensioned sufficiently for loads both in rated operation and in
the event of a malfunction. Furthermore, you must take the following important issues into
consideration when drafting a power supply concept:
● Building type, use and design (e.g. high rise, low rise or number of storeys)
● Determination of load centres, identification of possible supply routes and locations for
transformers and main distribution boards
● Calculation of the building's effective installed loads according to specific area loads as
appropriate for the building's use
● Planning authority regulations and requirements
● Requirements set out by the utility company
Requirements to be met by power supply concepts
Planning will never produce just a single option for a solution. Rather, you will need to
assess a number of possible options on the basis of issues relating to technology and cost.
The following requirements are major factors:
● Simple and transparent planning
● Long service life
● High availability
● Low fire load
● Flexible adaptation to changes in the building
Planning principles
2.2 Busbar trunking system planning
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 25
The solution: Siemens busbar trunking systems
In most applications, these requirements can easily be solved by using suitable busbar
trunking systems.
It is for this reason that busbar trunking systems are increasingly being preferred to cable
trunking by engineering consultants charged with designing systems for power transmission
and distribution. Siemens offers busbar trunking systems from 25 to 6300 A:
● The CD-K busbar trunking system from 25 to 40 A for supplying power to lights and small
loads
● The BD01 busbar trunking system from 40 to 160 A for supplying power to shopfloors
with tap-offs up to 63 A
● The BD2 system from 160 to 1250 A for supplying power to medium-sized consumers in
building and industrial applications
● The ventilated LD system for supplying power to consumers with medium power
requirements in industrial applications
● The LX sandwich system for power distribution to consumers with high power
requirements in building applications
● The LR cast resin system for power transmission under extreme ambient conditions
(IP68)
Figure 2-1 Siemens busbar trunking systems
Planning principles
2.2 Busbar trunking system planning
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26 Planning Manual, 09/2011, A5E01541101-02
2.2.2 Different types of busbar trunking systems and their functional scope
Requirements of the power supply
Specific requirements of power supplies and their individual components are typical of
modern production facilities and in building technology today. This is particularly true of
automated facilities.
The ability to retrofit new equipment or modify existing resources without interrupting active
production is not only important for the continuous provision of the electrical power supply. It
is also a vital requirement for production facilities operating on a multiple shift basis.
Increased safety and complex systems require a power distribution system which is able to
respond to all requirements associated with costs and technology.
The CD-K, BD01, BD2, LD, LX and LR busbar trunking systems are type-tested low-voltage
switchgear assemblies (TTA) compliant with DIN EN 60439-1 and -2. The CD-K, BD01, BD2
und LD systems consist of busbars, internal bar fixings, an external enclosure, fixing and
connection accessories. The LX sandwich system and the LR cast resin system consist of
busbars, fixing and connection accessories and an insulating foil, along with an aluminium
enclosure (LX) or an enclosure made from epoxy resin (LR).
Figure 2-2 BD2 trunking unit with tap-off unit
Power transmission
Components of the busbar trunking system transmit power between transformers and low
voltage power distribution systems and from the main distribution board to the service
distribution board. Trunking units without tap-off points are used for the power transmission.
In addition to the standard lengths, customers can select any lengths to meet their particular
building requirements.
Planning principles
2.2 Busbar trunking system planning
SIVACON 8PS - Planning with SIVACON 8PS
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Power distribution
The main application of busbar trunking systems is power distribution. Current can't be taken
from just a single point which is permanently installed such as a cable installation. Current
tap-off units can be moved to any position within the entire system. To tap power at any
given point simply requires positioning a tap-off unit at that location on the busbar.
The result is a flexible distribution system for decentralised power supply to a particular line
or area. Tap-off points can be mounted on one or both sides of straight trunking units.
Depending on the requirements of the particular application, busbar trunking units with tap-
off units for a rated current of 1250 A from a single tap-off point are available for tapping off
power and connecting loads. The tap-off units can be equipped with fuses, fuse-switches,
miniature circuit breakers or circuit breakers as desired.
To be able to change the tap-off units without disconnecting the busbar trunking run, the
following requirements apply:
Requirements
● The PE contact on the tap-off unit leads during installation and lags during removal.
● The parts which are live during installation, removal or connection have complete
protection against direct contact (degree of protection IP2x).
● Installation requires phasing to be correct.
● The tap-off unit must be isolated during installation and removal.
Figure 2-3 Tap-off units for flexible current consumption
Planning principles
2.2 Busbar trunking system planning
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2.2.3 A comparison of busbar trunking systems and cable trunking
Comparison of features
Feature Busbar trunking unit Cable trunking
TTA x —
Mechanical safety High Low
Fire load Low High
Thermal characteristics Ambient temperature compliant with
DIN EN 60439-1 and -2
max. +40°C and +35°C average over 24
hours
Cable loads assume +30 °C in accordance
with
DIN 57298-4, Chap. 5.3.3.1/
DIN VDE 0298-4/2.88
.
Network topology Transparent (line topology with load
feeders connected in series via tap-off
units)
Significant cable cluster at feeding point due
to point-to-point power supply to loads from
central power distribution system
Protective devices for loads In the tap-off unit: facilitating direct and
immediately traceable assignment to load
locally.
Centrally in the distribution board: this means
that assignment to the load cannot be
verified directly. You have to rely on the
cable and load being labelled correctly.
Space requirements Low High, since correspondingly large distribution
boards are needed. Laying criteria
(clustering, laying method, current carrying
capacity, etc.) have to be taken into account.
Retrofitting in the event of
changes to load feeders
Highly flexible thanks to tap-off points in
the trunking units and large number of
different tap-off units
Time-consuming and expensive. Additional
cables need to be laid from the distribution
board to the load.
Planning and configuration Quick and easy using computer-assisted
planning tools
Configuration is time-consuming and
complex (distribution board and cable
dimensioning, cable diagrams, etc.)
Dimensioning (current, voltage
drop, neutralisation conditions)
Complex Very complex
Troubleshooting expenditure Low High
Fireproof barrier Type-tested, factory-built Dependent upon installation quality on site
Functional endurance Functional endurance tested to
DIN 4102-12
Dependent upon installation quality on site
Electromagnetic interference Low Relatively high for standard cables
Installation Few installation accessories and tools,
short installation times
Extensive installation accessories and
numerous tools, long installation times
Weight Weighs up to 1/3 of comparable cable
weight
Up to 3 times the weight of the busbar
trunking system
Halogen-free,
PVC-free 1)
All tap-off units are halogen-free and
PVC-free.
Standard cables are not halogen-free and
PVC-free.
1) Details to be obtained from manufacturer
Planning principles
2.2 Busbar trunking system planning
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 29
Planning made easier
Easy to plan, quick to install and flexible to use: Siemens busbar trunking systems are an
efficient means of supplying power to any building. Power distribution can be planned
precisely on the basis of total connected load and the type and number of loads. Planning
tools such as SIMARIS design provide assistance. The line topology with load feeders
arranged at regular intervals ensures transparency. All applications can be implemented
quickly and compactly with standardised sizes.
In a cable trunking system, new loads have to
be connected via an additional sub-distribution
board; this costs
both time and money.
On busbar trunking systems, tap-off units in
the vicinity of loads ensure local transparency.
Increased safety due to high short-circuit rating and minimum fire load.
Advanced safety – both in respect of short-circuit rating and where fire load is concerned.
BD2A 250 busbar trunking systems, for example, have a fire load of just 1.32 kWh/m,
whereas comparable cable trunking systems (NYY 4 x 95/50 mm2) are rated at 5.19 kWh/m.
Furthermore, the busbars are halogen-free. Siemens busbar trunking systems feature high
short-circuit rating. Furthermore, troubleshooting is made easier thanks to local load short-
circuit protection.
High fire load with cables Low fire load with busbars
Planning principles
2.2 Busbar trunking system planning
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30 Planning Manual, 09/2011, A5E01541101-02
2.2.4 Planning guidelines
Documentation aids
The planning manual "Planning with SIVACON 8PS" contains general principles and
product-specific details for planning and dimensioning power distribution using SIVACON
8PS busbars.
For the complete planning of all main components from medium voltage, through
transformers, to the power outlet for utility and industrial buildings, use of the application
manual of TIP is recommended.
Advance planning
Infeed powers Rated currents and short-circuit currents of
standard transformers (Page 32)
Connected loads Technical data of the systems (Page 33)
Demand factor Planning example (Page 256)
Permissible voltage drop Determining the voltage drop (Page 247)
Required protective measures Degrees of protection for busbar trunking
systems (Page 252)
Distribution systems (network structures) Distribution systems (Page 254)
Selection of the power supply concept:
Centralised with cable and subdistribution boards A comparison of busbar trunking systems and
cable trunking (Page 28)
Decentralised with busbar trunking systems A comparison of busbar trunking systems and
cable trunking (Page 28)
Draft planning
System sizing
Short-circuit rating Technical data of the systems (Page 33)
Rated operating currents Technical data of the systems (Page 33)
Calculation of voltage drop Determining the voltage drop (Page 247)
Overload protection and short-circuit protection Overload protection and short-circuit protection
(Page 251)
Degree of protection depending on room type to
DIN VDE 0100
Degrees of protection for busbar trunking
systems (Page 252)
Planning principles
2.2 Busbar trunking system planning
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Consideration of busbar layout
BD2 LD LX LR
Trunking units Straight trunking units
(Page 45)
Straight trunking units
(Page 114)
Straight trunking units
(Page 159)
Straight trunking units
(Page 222)
Junction units Junction units (Page 46) Junction units
(Page 117)
Junction units
(Page 160)
Junction units
(Page 223)
Tap-off units Tap-off units (Page 54) Tap-off units
(Page 124)
Tap-off units and
junction boxes
(Page 166)
—
Fireproof
barriers
Fireproof barrier (Page 261)
Additional
equipment
Additional equipment
(Page 63)
Additional equipment
(Page 129)
Additional equipment
(Page 171)
Additional equipment
(Page 230)
Installation
General installation instructions Installation instructions for trunking units, incoming
supplies, tap-off units and accessories
Additionally for
BD2: installation manual for the BD2 system
(order no. A5E02126899)
LD: installation manual for the LD system
(order no. A5E02321029)
LX: installation manual for the LX system
(order no. A5E01120816)
LR: installation manual for the LR system
(order no. A5E00949793)
Creation of a specification
Specification texts BD2 Preliminary remark for specifications (Page 40)
Specification texts LD Preliminary technical descriptions for specifications
(Page 108)
Specification texts LX Preliminary remark for specifications (Page 152)
Specification texts LR Preliminary remark for specifications (Page 215)
You will also find the latest specification text modules for SIVACON 8PS on the Internet:
http://www.automation.siemens.com/tip/html_76/support/ausschreibung.htm
Planning principles
2.3 Rated currents and short-circuit currents of standard transformers
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32 Planning Manual, 09/2011, A5E01541101-02
2.3 Rated currents and short-circuit currents of standard transformers
Rated voltage
UrT
400/230 V, 50 Hz 525 V, 50 Hz 690/400 V, 50 Hz
Rated short-
circuit current
value Ukr
4 %
1) 6 %
2) 4 %
1) 6 %
2) 4 %
1) 6 %
2)
Rated power
[kVA]
Rated
current Ir
[A]
Initial symmetrical
short-circuit
current I''k 3)
[A]
Rated
current Ir
[A]
Initial symmetrical
short-circuit
current I''k 3)
[A]
Rated
current Ir
[A]
Initial symmetrical
short-circuit
current I''k 3)
[A]
50 72 1933 1306 55 1473 995 42 1116 754
100 144 3871 2612 110 2950 1990 84 2235 1508
160 230 6209 4192 176 4731 3194 133 3585 2420
200 288 7749 5239 220 5904 3992 167 4474 3025
250 360 9716 6552 275 7402 4992 209 5609 3783
315 455 12247 8259 346 9331 6292 262 7071 4768
400 578 15506 10492 440 11814 7994 335 8953 6058
500 722 19438 12020 550 14810 9158 418 11223 6939
630 910 24503 16193 693 18669 12338 525 14147 9349
800 1154 -- 20992 880 -- 15994 670 -- 12120
1000 1444 -- 26224 1100 -- 19980 836 -- 15140
1250 1805 -- 32791 1375 -- 24984 1046 -- 18932
1600 2310 -- 39818 1760 -- 30338 1330 -- 22989
2000 2887 -- 52511 2200 -- 40008 1674 -- 30317
2500 3608 -- 65547 2749 -- 49941 2090 -- 37844
3150 4550 -- 82656 3470 -- 62976 2640 -- 47722
1) ukr = 4 %, standardised to DIN EN 60909-0 / DIN VDE 0102 Part 0 for SrT = 50 ... 630 kVA
2) ukr = 6 %, standardised to DIN EN 60909-0 / DIN VDE 0102 Part 0 for
SrT = 100 ... 1600 kVA
3) I''k Unaffected transformer initial symmetrical short-circuit current in the case of connection
to a mains supply with unlimited short-circuit power taking into account the voltage factor
and the correction factor for transformer impedance in accordance with
DIN EN 60909/DIN VDE 0102 Part 0 (July 2002)
Approximation formula
Transformer rated current Transformer short-circuit AC current
IN [A] = k x SNT [kVA] I''k = IN/Iuk x 100 [A] 400 V: k = 1.45
690 V: k = 0.84
Planning principles
2.4 System selection criteria
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2.4 System selection criteria
2.4.1 Technical data of the systems
Selection of CD-K, BD01, BD2, LX, LD and LR
CD-K BD01 BD2 LX LD LR
Rated operating
voltage Ue
VAC 400 400 690 690 1000 1000
Standard degree
of protection
IP54, IP55 IP54, IP55 IP52, IP54,
IP55
IP54, IP55 IP34, IP54 1) IP68
Rated
current Ie
A 25 ... 40 40 ... 160 160 ... 1250 800 ... 5000,
6300 2)
1100 ... 5000 400 ... 6150
Rated short-time
withstand current
ICW (1 s)
kA 0.56 ... 0.85 0.58 ...2.5 5.5 ... 34 25 ... 150 55 ... 116 12 ... 100
Conditional short
circuit
rating Icf/Icc for
TU to < 630 A
kA 3) 3) 3) 100/65 120/100 2)
Conditional short
circuit
rating Icc for
TU to < 800 A
kA — — — 85 100 2)
Conductor configurations
L1, N,
PE=enclosure
x — — — — —
L1, L2, N,
PE=enclosure
x — — — — —
L1, L2, L3, N,
PE=enclosure
x x — x — —
L1, L2, L3,
PE=enclosure
— -— — x — —
L1, L2, L3, PEN — — — x x x
L1, L2, L3, N,
PE=busbar
— — x x x x
L1, L2, L3, 2N,
PE=enclosure
— — — x — —
L1, L2, L3, 2N,
PE=busbar
— — — x — —
L1, L2, L3, N,
(PE) 4),
PE=enclosure
— — — x — —
L1, L2, L3, 2N,
(PE) 4),
PE=enclosure
— — — x — —
Planning principles
2.4 System selection criteria
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34 Planning Manual, 09/2011, A5E01541101-02
CD-K BD01 BD2 LX LD LR
Dimensions width x height
for 40 A (Al, Cu) mm x mm 30 x 42 90 x 25 — — — —
for 160 A (Al, Cu) mm x mm — 90 x 25 167 x 68 — — —
for 400 A (Al) mm x mm — — 167 x 68 — — 90 x 90
for 1000 A (Al) mm x mm — — 167 x 126 145 x 162 180 x 180 120 x 120
for 2000 A (Al) mm x mm — — — 145 x 287 240 x 180 120 x 220
for 4000 A (Al) mm x mm — — — 145 x 599 240 x 180 120 x 440
for 1000 A (Cu) mm x mm — — — 145 x 137 180 x 180 90 x 90
for 2000 A (Cu) mm x mm — — — 145 x 207 240 x 180 120 x 192
for 3200 A (Cu) mm x mm — — — 145 x 287 240 x 180 120 x 240
for 5000 A (Cu) mm x mm — — — 145 x 599 240 x 180 120 x 440
for 6150 A (Cu) mm x mm — — — — — 120 x 480
Fire load
Trunking unit incl.
tap-off points
kWh/m 0.1 ... 0.48 0.76 1.32 ... 2 — — —
Trunking unit
without tap-off
point
kWh/m — — — 1.83 ... 16.32 4.16 ... 8.83 13.01 ... 86.96
per tap-off point kWh — — — 2.9 7.8 ... 10.8 2)
Voltage drop
for 40 A (Al, Cu) mV/m/A 2.917 5) 3.192 5) — — — —
for 160 A (Al, Cu) mV/m/A — 0.553 5) 0.519 5) — — —
for 400 A (Al) mV/m/A — — 0.544 5) — — 0.312 6)
for 1000 A (Al) 6) mV/m/A — — 0.15 5) 0.127 6) 0.116 6) 0.156 6)
for 2000 A (Al) 6) mV/m/A — — — 0.059 6) 0.079 6) 0.068 6)
for 4000 A (Al) 6) mV/m/A — — — 0.03 6) 0.043 6) 0.043 6)
for 1000 A (Cu) 6) mV/m/A — — — 0.149 6) — 0.148 6)
for 2000 A (Cu) 6) mV/m/A — — — 0.064 6) 0.089 6) 0.064 6)
for 3200 A (Cu) 6) mV/m/A — — — 0.033 6) 0.048 6) 7) 0.049 6)
for 5000 A (Cu) 6) mV/m/A — — — 0.02 6) 0.03 6) 0.025 6)
Planning principles
2.4 System selection criteria
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Planning Manual, 09/2011, A5E01541101-02 35
CD-K BD01 BD2 LX LD LR
Magnetic fields 8)
for 40 A (Al, Cu) µT 2) 0.4 — — — —
for 160 A (Al, Cu) µT — 0.6 2.8 — — —
for 400 A (Al) µT — — 11.1 — — 2)
for 1000 A (Al) µT — — 14.6 9.5 11.0 2)
for 2000 A (Al) µT — — — 13.2 12.0 2)
for 4000 A (Al) µT — — — 30.62 13.0 2)
for 1000 A (Cu) µT — — — 2) 2)
for 2000 A (Cu) µT — — — 11.66 9.7 2)
for 5000 A (Cu) µT — — — 37.22 14.4 2)
Max. fixing distances
Al systems m — 1.5 ... 3.1 2.5 ... 4.0 2.0 ... 3.0 5.0 ... 6.0 1.5 … 3.0
Cu systems m 3.0 1.5 ... 3.0 1.5 ... 1.0 2.0 ... 3.0 2.0 ... 3.0 1.5 ... 3.0
Tap-offs can be plugged into tap-off points at 3 m intervals
Up to 16 A Units 10 6 11 — — 0 9)
Up to 63 A Units — 6 10 6 3 0 9)
Up to 125 A Units — — 10 6 3 0 9)
160 A to 250 A Units — — 6 6 3 0 9)
315 A to 630 A Units — — 4 10) 4 3 0
9)
800 A to 1250 A Units — — — 0 9) 2 0
9)
1) With IP54, derating of up to 36% needs to be applied
2) On request
3) Usually equivalent to the protective devices installed (< Icw), see the corresponding technical
data
4) (PE) = Clean earth
5) Voltage drop data for 50 Hz 3-phase, cos phi=0.9, symmetrical load,
distributed load decrease and single-side infeed
6) Voltage drop data for 50 Hz 3-phase, cos phi=0.9, symmetrical load,
concentrated load decrease and single-side infeed
7) with LDC6 (Ie=3400 A)
8) Magnetic field values measured with symmetrical load 0.5 m away from the
busbar trunking system
9) Tap-off units can only be connected between two busbar trunkings with a bolt-on joint block (fixed
tap-off unit)
10) Can only be used as of BD2-630
Planning principles
2.4 System selection criteria
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36 Planning Manual, 09/2011, A5E01541101-02
2.4.2 Areas of application for high-current systems
Selection of high-current systems
In principle, SIVACON 8PS offers three high-current systems. We recommend the following
selection dependent upon area of application and ambient conditions:
Location of
use
Areas of application LX LD LR
For power distribution in multi-storey buildings with a
mainly vertical layout
X — —
To avoid neutral conductor overload due to electronic loads
subject to harmonics
X — —
To prevent interference potentials in the busbar enclosure
impairing the operating capability of loads
X — —
Busbar run layout where space is restricted and
requirements high.
— X —
Banks
Insurance companies
Internet providers
Computer centres
Broadcasting stations
Shopping centres
Furniture stores
If structural conditions permit only a vertical layout for
power distribution
X — —
Public
buildings
Shopping centres
Furniture stores
Trade fairs
Airports
Hospitals
Clinics
Office buildings
For power distribution with a mainly horizontal layout and
IP34 degree of protection
— X —
If pluggable tap-off units up to 1250 A are required — X —
When load tap-off points have to have high short-circuit
rating and resistance to arc faults, e.g.
I CC = 100 kA / I cf = 120 kA
— X —
Industrial buildings
Production
environments
If pluggable tap-off units up to 630 A are sufficient X — —
For power transmission under extreme production
conditions
— — X
For power transmission outside closed buildings — — X
Industrial
buildings
Industrial production
under extreme
conditions
If a horizontal busbar run and the IP68 degree of protection
are required
— — X
Planning principles
2.4 System selection criteria
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Planning Manual, 09/2011, A5E01541101-02 37
2.4.3 Selection on the basis of rated transformer data
Figure 2-4 Connection of a transformer to a Siemens power distribution board
The table can be used to select the appropriate busbar trunking system on the basis of the
transformer's rated current. The short-circuit rating of the LD, LX and LR busbar trunking
systems is usually higher than the values for the transformer's sustained and peak short-
circuit currents. However, this only applies if just a single transformer is used for the low-
voltage supply. Higher short-circuit values are possible on ring or meshed networks or if
transformers are connected in parallel in a low-voltage switchgear assembly. Such scenarios
must therefore be given special consideration. Please refer to the technical data for the
busbar trunking systems in question for specific data about short-circuit ratings.
Rated
power
[kVA]
Rated
current
I [A]
Initial
symmetrical
short-circuit
current
I''k (uk=6%)
[kAeff]
Peak short-
circuit
current
Ipk (uk=6%)
[kA]
LD size Rated
current
Ie IP34
[A]
LX size Rated
current
Ie IP54/
55 [A]
LRC size Rated
current
Ie IP68
[A]
630 910 16.19 38.58 LDA1 1100 LXA02/
LXC01
1000 LRA04/
LRC03
1000
800 1155 19.25 49.00 LDA2 1250 LXA04/
LXC02
1250 LRA06/
LRC04
1400/1350
1000 1444 24.06 61.24 LDA3 1600 LXA05/
LXC04
1600 LRA07/
LRC05
1700
1250 1805 30.07 76.57 LDA4 2000 LXA06/
LXC05
2000 LRA08/
LRC07
2000
1600 2310 38.50 98.00 LDA5 2500 LXA07/
LXC06
2500 LRA09/
LRC08
2500
2000 2887 48.11 122.50 LDA6 3000 LXA08/
LXC09
3200 LRA27/
LRC09
3200
2500 3609 60.11 153.10 LDA7 3700 LXA09/
LXC08
4000 LRA28/
LRC27
4000
3150 4546 75.78 192.90 LDC8 5000 LXC09 5000 LRA29/
LRC28
4600/5000
Additional values: see Technical data
Planning principles
2.4 System selection criteria
SIVACON 8PS - Planning with SIVACON 8PS
38 Planning Manual, 09/2011, A5E01541101-02
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Planning with BD2 3
3.1 System description
① Straight trunking units
② Junction units
③ Feeder units
④ Tap-off units
⑤ Additional equipment
Figure 3-1 Overview of BD2 busbar trunking system
Planning with BD2
3.2 System components
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40 Planning Manual, 09/2011, A5E01541101-02
The BD2 busbar trunking system is suitable for universal use. Designed for applications
involving flexible power supplies and power distribution for consumers in industrial and
commercial environments, it can also be used to transmit power from one supply point to
another. In addition, the BD2 busbar trunking system can be used as a rising main busbar in
high rise buildings.
3.2 System components
3.2.1 Preliminary remark for specifications
The BD2 busbar trunking systems can be offered as type-tested low-voltage switchgear and
controlgear assemblies (TTA) to DIN EN 60439-1 and DIN en 60439-2.
The brand offered represents a complete system consisting of system modules, including
elements for connection to the distribution boards such as brackets, straight trunking units,
e.g. Z connectors, T connectors, and flexible junction units.
Trunking units with tap-off openings can be equipped with coded tap-off units. Tap-off units
are protected against incorrect mounting. Depending on the type, the isolation of the tap-off
units during removal is assured by a compulsory sequence of operations or by cautionary
instructions.
If necessary, it is possible to equip the busbar trunking system with an asbestos-free fire
barrier which conforms in the case of BD2C to the fire resistance class S 120 and in the case
of BD2A to S 90 or S 120. The trunking unit's steel enclosure is made of moulded steel
profiles to permit large fixing distances between suspension points. The enclosure is painted
in a light grey colour (RAL 7035).
The external dimensions may not exceed 68 x 167 mm up to 400 A or 126 x 167 mm up to
1250 A. The connection of the individual systemmodules is implemented with state-of-the-art
quick connection terminals with integral compensation for expansion. The system is
protected against phase inversion. A mechanical, electrical and maintenance-free
connection between two busbar trunking system elements can be established quickly and
safely using conventional tools.
The conductors are made of aluminium or copper. The aluminium and copper conductors
must be nickel-plated and tinned along their entire length. The fire load should not exceed
the value stated in the technical specifications. Expansion compensation must be integrated
into eachtrunking unit. Busbar trunking units should be able to be mounted both horizontally
and vertically. Junction units may not be used to connect cables. Flexible junction unit are
permissible as system modules of the busbar trunking system.
The following declarations of conformity must be included with the offer:
● DIN ISO 9001 QA certification
● Certificates verifying
– that the fire barrier has been tested and approved
– that functional endurance has been tested and approved
Planning with BD2
3.2 System components
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Planning Manual, 09/2011, A5E01541101-02 41
The general preliminary remarks are followed by a detailed description of the system as
appropriate for technical requirements:
Technical data for BD2 busbar trunking systems
Rated current _________1)
Degree of protection IP52/IP54/IP55 2)
Mounting position Horizontal/vertical 2)
Rated insulation voltage 690 VAC/800 VDC
Rated operating voltage 690 VAC
Rated frequency 50 – 60 Hz
Rated peak withstand current I pk _________1)
Rated short-time withstand current Icw (1 s) _________1)
Conductor material Al/Cu 2)
No. of conductors (active) 5
Fire load _________1)
Enclosure dimensions
160 to 400 A 68 x 167 mm
630 to 1250 A 126 x 167 mm
1) Enter data for selected system size. See technical data.
2) Please delete as appropriate.
Note
The innovative design and construction of the BD2 busbar trunking system means that
additional compensation units to compensate busbar expansion are not required. Prevailing
length expansion caused by current heat is compensated in the quick connection terminal.
Furthermore, regardless of mounting position and degree of protection, the BD2 busbar
trunking system can always be loaded at 100% of rated current. This only has to be reduced
in the case of pure power transmission in the edgewise mounting position (to 0.9 x Ie).
Planning with BD2
3.2 System components
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42 Planning Manual, 09/2011, A5E01541101-02
3.2.2 Type code
Trunking units
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Figure 3-2 Type codes for BD2A/BD2C trunking units
Planning with BD2
3.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 43
Feeder units, junction units
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1) Feeder units only
Selection example for trunking units
A rated current of 1000 A is calculated for a project. Aluminium conductors shall be used. A
5-pole system has to be used. The cross section of the neutral conductor needs to be equal
to the cross section of the phase conductor.
This results in type BD2A-3-1000-
Planning with BD2
3.2 System components
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44 Planning Manual, 09/2011, A5E01541101-02
Trunking unit sizes (cross sections)
Size 1 Size 2
1///3(
160...400 A
1 // / P3(
630...1250 A
Conductor configuration 2
BD2A-2, BD2C-2 trunking units
/ / 3(/1
160...400 A
/ / 3(/1
630...1250 A
Conductor configuration 3
BD2A-3, BD2C-3 trunking units,
junction units, BD2A-..., BD2C-... incoming supplies
Additional equipment is available for both sizes and conductor configurations.
Tap-off units with moulded-plastic enclosures up to 25 A and tap-off units with sheet steel
enclosures can be used as tap-offs for size 1 up to 250 A and size 2 up to 530 A.
Planning with BD2
3.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 45
3.2.3 Straight trunking units
Straight trunking units are used to transmit electrical power and to supply loads.
Straight trunking units without tap-off points for horizontal and vertical installation
400 to 1250 A
Figure 3-3 Straight trunking units without tap-off points
Length Type
1.25 m BD2.-.-...-SO-1
2.25 m BD2.-.-...-SO-2
Standard lengths
3.25 m BD2.-.-...-SO-3
0.50...1.24 m BD2.-.-WO-1W*
1.26...2.24 m BD2.-.-WO-2W*
Optional lengths W
2.26...3.24 m BD2.-.-WO-3W*
160...400 A BD2.-400-WO-AL Non-standard lengths (can be cut to
length)
1.25 m
630...1250 A BD2A-1000-WO-AL
BD2C-1250-WO-AL
Straight trunking units with tap-off points for horizontal and vertical installation
160 to 1250 A
Figure 3-4 Straight trunking units with tap-off points
Length Type
BD2.-2 and BD2.-3
Standard lengths with 12 tap-off points 3.25 m BD2.-.-...-SB-3
Standard lengths with 8 tap-off points 2.25 m BD2.-.-...-SB-2
Standard lengths with 4 tap-off points 1.25 m BD2.-.-...-SB-1
Optional lengths with 8 to 12 tap-off points 2.26...3.24 m BD2.-.-...-WB-3W*
Optional lengths with 4 to 8 tap-off points 1.26...2.24 m BD2.-.-...-WB-2W*
S Standard length
O Without tap-off point
W Optional length
* Optional length in m
B Tap-off points on both sides
Planning with BD2
3.2 System components
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46 Planning Manual, 09/2011, A5E01541101-02
3.2.4 Junction units
Junction units are used to adapt the layout to prevailing structural conditions.
Angled trunking units
<
;
<
;
Length Type
160 ... 400 A BD2.-400-L... Standard length X and Y = 0.36 m
630 ... 1250 A BD2A-1000-L...
BD2C-1250-L...
160 ... 400 A BD2.-400-L...-X*/Y* Optional length X or Y = 0.36 ... 1.25 m
630 ... 1250 A BD2A-1000-L...-X*/Y*
BD2C-1250-L...-X*/Y*
* Optional length in m
Z trunking units
<
;
=
<
=
;
Length Type
160 ... 400 A BD2.-400-Z.-X*/Y*/Z* Optional length X or Y = 0.36 ... 0.6 m
Z ≤ 1.25 m 630 ... 1250 A BD2A-1000-Z.-X*/Y*/Z*
BD2C-1250-Z.-X*/Y*/Z*
* Optional length in m
Planning with BD2
3.2 System components
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Planning Manual, 09/2011, A5E01541101-02 47
Angled trunking units with angle configurable between 85° and 175° in 5° increments
ದ
<
;
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<
;
Length Type
160 ... 400 A BD2.-400-L.-G* Standard length X and Y = 0.36 m
630 ... 1250 A BD2A-1000-L.-G*
BD2C-1250-L.-G*
160 ... 400 A BD2.-400-L.-X*/Y*-G* Optional length X or Y = 0.36 ... 1.25 m
630 ... 1250 A BD2A-1000-L.-X*/Y*-G*
BD2C-1250-L.-X*/Y*-G*
X*, Y* Optional length in mm
G* Required number of degrees
T and K units
T unit
K unit
Length per leg K unit type
160 ... 400 A BD2.-400-T. 0.36 m
630 ... 1250 A BD2A-1000-T.
BD2C-1250-T.
Length per leg T unit type
160 ... 400 A BD2.-400-K.. 0.36 m
630 ... 1250 A BD2A-1000-K..
BD2C-1250-K..
Planning with BD2
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48 Planning Manual, 09/2011, A5E01541101-02
Flexible movable trunking units in X/Y/Z direction
Length Type
1.25 m 160 ... 400 A BD2-400-R
1,75 m 630 ... 800 A BD2-800-R
Custom lengths up to 3.25 m
are possible
Planning with BD2
3.2 System components
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3.2.5 Feeder units
Feeder units are used to feed power into the busbar trunking system with single-core or
multi-core cables as well as to feed power directly to low-voltage distribution equipment. The
incoming supply can be set up as an end feed or a centre feed.
3.2.5.1 End feeder units
Common features
All end feeder units have the following common features:
Cables can be fed in from the front end. Units with cable compartments support cable entry
from the side. In the case of multi-core conductor entry, a sectional entry flange with cable
sleeves and cable propping bar is standard; in the case of single-core conductor entry, an
aluminium plate is standard. The cables are connected using lugs and bolts. The bolts are
supplied with the unit. When connecting 5-conductor cables you will need to remove the
bridge between PE and N which will have been fitted prior to delivery. The phasing can be
changed locally.
Incoming cable connection unit: Multi-core entry BD2.-...-EE, single-core design BD2.-...-EE-
EBAL
End feeder units: Incoming cable connection unit
160...250 A BD2.-250-EE(-EBAL)
160...400 A BD2.-400-EE(-EBAL)
630...1000 A BD2.-1000-EE(-EBAL)
630...1250 A BD2C-1250-EE(-EBAL)
Planning with BD2
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50 Planning Manual, 09/2011, A5E01541101-02
Incoming cable connection unit: Multi-core entry with cable compartment BD2.-...-EE-KR,
single-core design with cable compartment BD2.-...-EE-KR-EBAL
Figure 3-5 End feeder units: Cable entry from the side
160...400 A BD2.-400-EE-KR(-EBAL)
630...1000 A BD2.-1000-EE-KR(-EBAL)
630...1250 A BD2C-1250-EE-KR(-EBAL)
Incoming cable connection unit with switch disconnector
Figure 3-6 End feeder unit with switch disconnector
250 A with 3-pole switch disconnector BD2C-250-EESC
315 A with 3-pole switch disconnector BD2C-315-EESC
400 A with 3-pole switch disconnector BD2C-400-EESC
630 A with 3-pole switch disconnector BD2C-630-EESC
800 A with 3-pole switch disconnector BD2C-800-EESC
Cables can be fed in from three sides.
Planning with BD2
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3.2.5.2 Centre feeder units
Common features
All centre feeder units have the following common features:
Cables can be fed in from three sides. The sectional entry flange with integrated strain relief
can be converted to these positions. Aluminium cable entry plates for single-core cables as
an alternative option. The cables are connected using lugs and bolts. When connecting 5-
conductor cables you will need to remove the bridge between PE and N which will have
been fitted prior to delivery.
Figure 3-7 Centre feed
160 ... 400 A BD2.-400-ME
630 ... 1000 A BD2.-1000-ME
160 ... 400 A BD2.-400-ME-MBAL
630 ... 1000 A BD2.-1000-ME-MBAL
Important planning information:
A centre feed might be the best option for the distribution of high powers with small busbar
cross sections. It is mounted in the centre of a trunking run between two trunking units. A
single power supply cable provides power to the left-hand and right-hand trunking runs
simultaneously. This means, for example, that a 1000 A centre feed can feed in 2000 A. In
such cases you need to pay particular attention to the busbar system's overload and short-
circuit protection.
You will need to provide protective measures in the following instances:
● If short-circuit protection is not being provided by the upstream protective device and/or
● If the overload is not set by the type and number of loads
There are two possible protective measures:
1. Use a centre feed unit with one coupling unit on the left of the incoming feeder and
another on the right. The coupling unit is fitted with a protective device (fuse or circuit
breaker) providing short-circuit and overload protection.
2. Use two end feeder units located in the centre of the trunking run. The two supply lines
are fused separately in the distribution system.
Planning with BD2
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3.2.6 Distribution board feeder
The distribution board feeder supports direct connection to a low-voltage distribution board.
The cables or Cu strips are connected using the bolts supplied with the feeders.
Figure 3-8 Distribution board feeder
160...250 A BD2.-250-VE
160...400 A BD2.-400-VE
630 ... 1000 A BD2.-1000-VE
630...1250 A BD2C-1250-VE
Planning with BD2
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3.2.7 Coupling units
Features of coupling units
Coupling units are used if devices or sections of the power supply need to be disconnected
or connected accordingly. To adapt the busbar trunking system to the actual load, the busbar
cross section can be reduced and protected against short circuits and overloads with a
coupling unit.
Coupling units can be fitted with load disconnect switches up to 630 A or circuit-breakers up
to 1250 A as appropriate for the application concerned.
The maximum installation length in the busbar trunking run is 1500 mm. The dimensions of
the coupling unit must not exceed 1250 x 500 x 500 mm (W x H x D).
Coupling units with circuit-breaker
Figure 3-9 Coupling unit with circuit-breaker
BD2.-...-K...-3VL...: On request
Coupling units with fuse switch disconnector
Figure 3-10 Coupling unit with fuse switch disconnector
BD2.-...-K...-ST...: On request
Planning with BD2
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54 Planning Manual, 09/2011, A5E01541101-02
3.2.8 Tap-off units
Tap-off units are used to supply power to loads and outgoing current feeders, e.g. for
incoming power supplies to smaller busbar trunking systems.
3.2.8.1 Tap-off units up to 25 A
Special features
● Tap-off units with fuses, miniature circuit-breakers and sockets
● Insulation-enclosed, light grey in colour RAL 7035
● Transparent cover which can be operated from the outside for the protective devices
● Load switching capacity AC 22 B (400 V) of tap contacts
● Multi-core cables can be fed in from three sides
● Knockouts
● Cable sleeve and integrated strain relief (standard)
● The tap-off unit must be disassembled in order to open the unit and connect the cables.
● Anti-rotation feature prevents incorrect mounting.
● See technical data for conductor cross sections.
Figure 3-11 Tap-off units up to 25 A
Ie
A
Ue
V
Design Type
25 400 Fuse base 3 x D02 BD2-AK1/S18
16 400 Fuse base 3 x D01 BD2-AK1/S14
16 400 3-pole miniature circuit-breaker 16 A, characteristic C BD2-AK1/A163
16 230 Fuse base 2 x D01 and 2 x 3-pole sockets CEE 16 BD2-AK1/2CEE163S14
16 400 Fuse base 3 x D01 and 1 x 5-pole socket CEE 16 BD2-AK1/CEE165S14
16 230 2 x 16 A miniature circuit-breakers, 1-pole, characteristic B and
2 sockets CEE 16, 3-pole
BD2-AK1/2CEE163A161
16 400 3-pole 16 A miniature circuit-breaker, characteristic C and
1 socket CEE 16, 5-pole
BD2-AK1/CEE165A163
16 230 Fuse base 3 x D01 and 3 x 16 A socket outlets with earthing
contact
BD2-AK1/3SD163S14
16 230 3 x 16 A miniature circuit-breakers, 1-pole, characteristic B and
3 x 16 A socket outlets with earthing contact
BD2-AK1/3SD163A161
Planning with BD2
3.2 System components
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3.2.8.2 Tap-off units up to 63 A
Tap-off units with 63 A, with cover integrated load disconnector
Special features
● Tap-off units with fuses, miniature circuit-breakers and sockets
● Sheet-steel enclosure, hot-dip galvanised and cover with powdered paint finish, light grey
in colour, RAL 7035
● The cover has to be opened prior to mounting and removing the unit
● Multi-core cables can be fed in from three sides, knockouts
● Anti-rotation feature prevents incorrect mounting.
● Switch disconnector integrated into cover, switching capacity AC 22 B (400 V) ensures
zero voltage and zero load when the cover is opened
● See technical data for conductor cross sections.
Figure 3-12 Tap-off units up to 63 A, with cover integrated load disconnector
Ie
A
Ue
V
Design Type
63 400 3-pole fuse base D02 up to 63 A BD2-AK2X/S18
25 500 3-pole fuse base S27 up to 25 A BD2-AK2X/S27
63 500 3-pole fuse base S33 up to 63 A BD2-AK2X/S33
32 400 3-pole miniature circuit-breaker 32 A, characteristic C BD2-AK2M2/A323
32 400 3-pole fuse base S33 and
1 x 5-pole socket CEE 32
BD2-AK2X/CEE325S33
63 400 3-pole fuse base S33 and
1 x 5-pole socket CEE 63
BD2-AK2X/CEE635S33
32 400 3-pole 32 A miniature circuit-breaker, characteristic C and
1 x 5-pole socket CEE 32
BD2-AK2M2/CEE325A323
16 400 2 x 3-pole fuse bases D01 and
2 x 5-pole sockets CEE 16
BD2-AK2X/2CEE165S14
16 400 2 x 3-pole 16 A miniature circuit-breakers, characteristic C and
2 x 5-pole sockets CEE 16
BD2-AK2M2/2CEE165A163
16 230 1 x 3-pole miniature circuit-breaker 16 A, characteristic C and
2 x 1-pole miniature circuit-breaker 16 A, characteristic C and
1 x 5-pole socket CEE 16 and
2 x 16 A sockets with earthing contact
BD2-AK2M2/2SD163CEE165A163
Planning with BD2
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56 Planning Manual, 09/2011, A5E01541101-02
Tap-off units up to 63 A, without cover integrated load disconnector
Special features
● Tap-off units with fuses or miniature circuit-breakers
● Sheet-steel enclosure, hot-dip galvanised and cover with powdered paint finish, light grey
in colour, RAL 7035
● Anti-rotation feature prevents incorrect mounting.
● The unit can be mounted and removed with the cover open and closed
● If the cover is open, the installed devices will remain live (test option). IP20
protection/finger safety is assured.
● Multi-core cables can be fed in from three sides via knockouts
● See technical data for conductor cross sections.
Note
You are not permitted to connect or disconnect the tap-off unit under load.
Figure 3-13 Tap-off units up to 63 A, without cover integrated load disconnector
Ie
A
Ue
V
Design Type
63 400 3-pole fuse base D02 up to 63 A BD2-AK02X/S18
25 500 3-pole fuse base S27 up to 25 A BD2-AK02X/S27
63 500 3-pole fuse base S33 up to 63 A BD2-AK02X/S33
25 400 3-pole fuse base SP38 for cylindrical fuse-link 10 x 38 mm BD2-AK02X/F1038-3
25 400 4-pole fuse base SP38 for cylindrical fuse-link 10 x 38 mm BD2-AK02X/F1038-3N
32 400 3-pole fuse base SP51 for cylindrical fuse-link 14 x 51 mm BD2-AK02X/F1451-3
32 400 4-pole fuse base SP51 for cylindrical fuse-link 14 x 51 mm BD2-AK02X/F1451-3N
63 400 3-pole fuse base SP58 for cylindrical fuse-link 22 x 58 mm BD2-AK02X/F2258-3
63 400 4-pole fuse base SP58 for cylindrical fuse-link 22 x 58 mm BD2-AK02X/F2258-3N
32 400 3-pole miniature circuit-breaker 32 A, characteristic C BD2-AK02M2/A323
32 400 3+N-pole miniature circuit-breaker 32 A, characteristic C BD2-AK02M2/A323N
63 400 3-pole miniature circuit-breaker 63 A, characteristic C BD2-AK02M2/A633
63 400 3+N-pole miniature circuit-breaker 63 A, characteristic C BD2-AK02M2/A633N
Planning with BD2
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Planning Manual, 09/2011, A5E01541101-02 57
3.2.8.3 Tap-off units up to 125 A
Tap-off units up to 125 A, with cover integrated load disconnector
Special features
● With fuse base and fuse switch disconnector
● Sheet-steel enclosure, hot-dip galvanised and cover with powdered paint finish, light grey
in colour, RAL 7035
● Anti-rotation feature prevents incorrect mounting.
● Cover interlock for circuit breaker and fuse switch disconnector
● Multi-core cables can be fed in from three sides via knockouts
● See technical data for conductor cross sections.
Note
If you are using fuse bases, you must disconnect the load prior to removing the enclosure
cover.
Figure 3-14 Tap-off units up to 125 A, with cover integrated load disconnector
Ie
A
Ue
V
Design Type
125 690 3-pole LV HRC fuse base size 00 BD2-AK3X/GS00
125 690 3-pole LV HRC fuse switch disconnector size 00 BD2-AK3X/GSTZ00
Tap-off units up to 125 A, without cover integrated load disconnector
Special features
● With miniature circuit breaker, circuit breaker, fuse switch, fuse base and fuse switch
disconnector
● Sheet-steel enclosure, hot-dip galvanised and cover with powdered paint finish, light grey
in colour, RAL 7035
● Anti-rotation feature prevents incorrect mounting.
● The unit can be mounted and removed with the cover open and closed
Planning with BD2
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58 Planning Manual, 09/2011, A5E01541101-02
● If the cover is open, the installed devices will remain live (test option). IP20
protection/finger safety is assured.
● Cover interlock on units with circuit breaker and fuse switch disconnector
● Multi-core cables can be fed in from three sides via knockouts
● See technical data for conductor cross sections.
Note
You are not permitted to connect or disconnect the tap-off units under load.
Please be aware of the reduced switching capacity when using the tap-off units with
circuit breakers at Ue = 690 V.
Figure 3-15 Tap-off unit up to 125 A, without cover integrated load disconnector
Ie
A
Ue
V
Design Type
125 400 with 3-pole miniature circuit breaker 125 A, characteristic C BD2-AK03M2/A1253
125 400 with 3-N-pole miniature circuit breaker 125 A, characteristic C BD2-AK03M2/A1253N
125 400 with 3-pole fuse switch disconnector GSTA00 BD2-AK03X/GSTA00
125 400 with 3-pole fuse base SP58 BD2-AK03X/F2258-3
125 400 with 4-pole fuse base SP58 BD2-AK03X/F2258-3N
125 400 with 3-pole IEC - with fuse switch disconnector BD2-AK03X/FS125IEC-3
125 400 with 3-pole BS - with fuse switch disconnector BD2-AK03X/FS125BS-3
125 400 with 4-pole IEC - with fuse switch disconnector BD2-AK03X/FS125IEC-4
125 400 with 4-pole BS - with fuse switch disconnector BD2-AK03X/FS125BS-4
40 400 with 40 A 3-pole circuit breaker BD2-AK03X/LSD-DC40-N
63 400 with 63 A 3-pole circuit breaker BD2-AK03X/LSD-DC(AE)63-N
80 400 with 80 A 3-pole circuit breaker BD2-AK03X/LSD-DC(AE)80-N
100 400 with 100 A 3-pole circuit breaker BD2-AK03X/LSD-DC100-N
125 400 with 125 A 3-pole circuit breaker BD2-AK03X/LSD-DC125-N
40 400 with 40 A 4-pole circuit breaker BD2-AK03X/LSD-EM40-N
63 400 with 63 A 4-pole circuit breaker BD2-AK03X/LSD-EM63-N
80 400 with 80 A 4-pole circuit breaker BD2-AK03X/LSD-EM80-N
100 400 with 100 A 4-pole circuit breaker BD2-AK03X/LSD-EM100-N
125 400 with 125 A 4-pole circuit breaker BD2-AK03X/LSD-EM125-N
Planning with BD2
3.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 59
3.2.8.4 Tap-off units up to 250 A
Special features
● Tap-off units with circuit breaker, fuse switch disconnector and fuse base
● Sheet-steel enclosure, hot-dip galvanised and painted, light grey in colour, RAL 7035
● Multi-core or single-core cables can be fed in from 3 sides
● The cover has to be opened prior to mounting and removing the unit
● Anti-rotation feature prevents incorrect mounting.
● See technical data for conductor cross sections.
Note
Please be aware of the reduced switching capacity when using the tap-off units with
circuit breakers at Ue = 690 V.
You are not permitted to connect or disconnect the tap-off unit under load.
Figure 3-16 Tap-off units up to 250 A
Ie
A
Ue
V
Design Type
160 400 with 160 A 3-pole circuit breaker BD2-AK04/LSD-DC(AE)-160-N
160 400 with 160 A 4-pole circuit breaker BD2-AK04/LSD-EC-160-N
200 400 with 200 A 3-pole circuit breaker BD2-AK04/LSD-DC(AE)-200-N
200 400 with 200 A 4-pole circuit breaker BD2-AK04/LSD-EC-160-N
250 400 with 250 A 3-pole circuit breaker BD2-AK04/LSD-DC(AE)-250-N
250 400 with 250 A 4-pole circuit breaker BD2-AK04/LSD-EC-250-N
225 400 with 250 A 3-pole fuse switch disconnector BD2-AK04/FS250IEC(BS)-3
225 400 with 250 A 4-pole fuse switch disconnector BD2-AK04/FS250IEC(BS)-4
250 690 with 3-pole NH1 fuse base BD2-AK04/SNH1
Planning with BD2
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3.2.8.5 Tap-off units up to 400 A
Tap-off units up to 400 A, for BD2 systems 630 to 1250 A only
Special features
● Tap-off units with circuit breaker, fuse switch disconnector and fuse base
● Sheet-steel enclosure, hot-dip galvanised and painted, light grey in colour, RAL 7035
● Multi-core or single-core cables can be fed in from 3 sides
● The cover has to be opened prior to mounting and removing the unit
● Anti-rotation feature prevents incorrect mounting.
● See technical data for conductor cross sections.
Note
Please be aware of the reduced switching capacity when using the tap-off units with
circuit breakers at Ue = 690 V.
You are not permitted to connect or disconnect the tap-off unit under load.
Figure 3-17 Tap-off units up to 400 A, for BD2 systems 630 to 1250 A only
Ie
A
Ue
V
Design Type
400 400 with 400 A 3-pole circuit breaker BD2-AK05/LSD-DC(AE)-400-N
400 400 with 400 A 4-pole circuit breaker BD2-AK05/LSD-EC-400-N
320 400 with 400 A 3-pole fuse switch disconnector BD2-AK05/FS400IEC(BS)-3
320 400 with 400 A 4-pole fuse switch disconnector BD2-AK05/FS400IEC(BS)-4
400 690 with 3-pole NH2 fuse base BD2-AK05/SNH2
Planning with BD2
3.2 System components
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3.2.8.6 Tap-off units up to 530 A
Tap-off units up to 530 A, for BD2 systems 630 to 1250 A only
Special features
● Tap-off units with circuit breaker and fuse base
● Sheet-steel enclosure, hot-dip galvanised and painted,
● light grey in colour, RAL 7035
● Multi-core or single-core cables can be fed in from 3 sides
● The cover has to be opened prior to mounting and removing the unit
● Anti-rotation feature prevents incorrect mounting.
● See technical data for conductor cross sections.
Note
Please be aware of the reduced switching capacity when using the tap-off units with
circuit breakers at Ue = 690 V.
You are not permitted to connect or disconnect the tap-off unit under load.
Tap-off units up to 530 A, for BD2 systems 630 to 1250 A only
Ie
A
Ue
V
Design Type
530 400 with 630 A 3-pole circuit breaker BD2-AK06/LSD-DC(AE)-630-N
530 400 with 630 A 4-pole circuit breaker BD2-AK06/LSD-EC-630-N
530 690 with 3-pole NH3 fuse base BD2-AK06/SNH3
Planning with BD2
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3.2.9 Ancillary equipment units
Special features
● The enclosure is made of hot-dip galvanised sheet steel and has a painted cover. It is
light grey in colour (RAL 7035).
● Cables can be inserted from 3 sides via knockouts (plastic cable glands with strain relief
must be used, these are not included in the scope of supply).
● Can be combined with tap-off units (BD2-AK02, AK2, AK03, AK3)
● A standard rail is integrated for installation of the device.
● 1 size with 8 WM (1 WM = 18 mm space requirement).
● With or without component mounting unit for external actuation (1 size with with space
units for 8 WM)
● Installation of devices (e.g. circuit-breakers) according to DIN 43871 up to and including
63 A is possible.
Figure 3-18 Ancillary equipment unit
Ue
V
Design Type
400 BD2-GK2X/F
400 BD2-GKM2/F
Planning with BD2
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3.2.10 Additional equipment
3.2.10.1 Additional equipment for increased degree of protection IP54 and IP55
Flange for increased degree of protection
In both the horizontal and vertical mounting positions, the BD2 busbar trunking system has
IP52 degree of protection. This can be increased to IP54 or IP55 by fitting additional flanges.
Detailed information about degree of protection flanges appears in the LV 70 catalogue.
3.2.10.2 Fixing accessories
The following fixing brackets are available for edgewise and flat mounting of busbar trunking
systems in horizontal busbar trunking runs:
Fixing bracket BD2-400-BB Fixing bracket BD2-1250-BB
Fixing accessories
Figure 3-19 Fixing bracket for vertical mounting BD2-BVF
For the fixing of vertical busbar trunking runs
Wall fixing BD2-BWV Wall fixing BD2-BVC
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Figure 3-20 Ceiling fixing BD2-BDV
Compensation of wall or ceiling unevenness between 30 and 82 mm
Figure 3-21 Spacer bracket BD2-BDV
The spacer bracket is combined with the BD2-400(1250)-BB fixing bracket.
Planning with BD2
3.3 Technical data
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3.3 Technical data
3.3.1 BD2 general data
Type BD2-...
Standards and regulations DIN EN 60439-1 and -2
Rated insulation voltage Ui VAC/VDC 690 / 800
Overvoltage category/pollution degree III / 3
Rated operating voltage Ue V AC 690
Frequency Hz 50 ... 60 1)
Rated operational current Ie
• Aluminium bars A 160 ... 1000
• Copper bars A 160 ... 1250
Resist-
ance to
extreme
climates
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Cold in accordance with IEC 60068-2-1
Temperature change in accordance with
IEC 60068-2-14
Salt spray test in accordance with IEC 60068-2-52
40 °C / 93% / RH / 56d
56 x (25 ... 40°C/3 h ; 40°C/9 h; 40-25°C/3-6 h ;
25 °C/6 h) / 95% RH
-45 °C, 16 h
-45 ° to 55 °C; 5 cycles (1 °C/min);
Holding time min. 30 min
Degree of severity 3
Environmental classes 1K5, 3K7L, 2K2, 1C2, 2C2, 3C2, 1B2, 2B2, 3B2,
1S2, 2S2, 3S2
Ambient temperature min./max./24-hour average °C –5 / +40 / +35
Degree of protection compliant with IEC/EN 60529 (type 2)
Trunking units IP52
Trunking units with additional equipment on busbar trunking run IP54, IP55
Feeder units IP55
Tap-off units IP54
Tap-off units with additional equipment IP55
Distribution board feeders IP00
Trunking units
Feeder units, tap-off units
Hot-dip galvanised, painted sheet steel, light-grey
(RAL 7035)
Enclosure of hot-dip galvanised sheet steel, cover
painted, colour light-grey, RAL 7035
Exception: Tap-off units BD2-AK1/... Moulded-plastic enclosure, light grey (RAL 7035)
Busbars
Aluminium/copper Nickel-plated and tinned bars
Mounting position Edgewise, flat, vertical
1) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents > 800 A
at a frequency of 60 Hz.
Planning with BD2
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3.3.2 Tap-off units
Type BD2-AK2..., BD2-AK3...
Rated current
I
e 25 A 63 A 125 A 250 A 400 A
Switching capacity of the contact mechanism AC-22B – – – –
Switching capacity of the built-in switch disconnector acc. to
DIN EN 60947-3 at 400 V
– AC-22B AC-21B – –
Important planning guideline
It is not the case that every tap-off unit has a rated voltage of 690 V and a short-circuit rating
in accordance with the system size.
The tap-off units used must be compatible with the values required by the equipment as far
as their short-circuit rating and rated voltage are concerned.
If the tap-off unit is not compatible with the rated voltage, a unit with appropriate internal
components must be selected. Higher short-circuit currents must be limited by means of
upstream protection devices (e.g. circuit breakers).
3.3.3 Trunking units BD2A (aluminium)
Type BD2A-.-160 BD2A-.-250 BD2A-.-400
Conducting paths
Rated insulation voltage Ui VAC/VDC 690/800 690/800 690/800
Overvoltage category/pollution degree III/3 III/3 III/3
Rated operating voltage Ue V AC 690 690 690
Frequency Hz 50...60 50...60 50...60
Rated current Ie = therm. rated current at max. 40°C and
35°C average over 24 hours
A 160 250 400
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with cold busbars)
Resistance R20 mΩ/m 0.484 0.302 0.167
Reactance X20 mΩ/m 0.162 0.131 0.123
Impedance Z20 mΩ/m 0.511 0.330 0.207
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with busbars at normal operating temperature)
Resistance R1 mΩ/m 0.588 0.375 0.215
Reactance X
1 mΩ/m 0.160 0.128 0.122
Impedance Z
1 mΩ/m 0.610 0.397 0.247
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Type BD2A-.-160 BD2A-.-250 BD2A-.-400
Impedance of conducting paths under fault conditions
AC current rating RF mΩ/m 0.959 0.673 0.548
Reactance XF mΩ/m 0.681 0.487 0.456
Impedance ZF mΩ/m 1.159 0.831 0.713
R0 mΩ/m 2.050 1.340 1.217
X0 mΩ/m 0.884 0.750 0.640
Phase N
Z0 mΩ/m 2.232 1.535 1.375
R0 mΩ/m 2.018 1.071 1.059
X0 mΩ/m 0.416 0.567 0.518
Zero impedance acc. to
DIN EN 60909-0/VDE 0102
Phase PE
Z0 mΩ/m 2.061 1.212 1.179
Short-circuit rating
Rated peak withstand current Ipk kA 17 32 40
t = 1 s kA 5.5 10 16
Rated short-time withstand current Icw
t = 0.1 s kA 10 16 20
Number of conductors 5 5 5
L1, L2, L3 mm2 63 108 205
N mm2 63 108 205
PE mm2 63 108 205
Conductor cross section
1/2 PE mm2 63 108 205
Conductor material Al Al Al
Max. fixing distances for trunking units under conventional mechanical load
Edgewise m 4 4 4
Edgewise with BD2-BD 1) m 4 4 4
Flat m 3.5 3.5 3.5
Fire load 2) kWh/m 1.32 1.32 1.32
Weight 3) kg/m 5.3 5.8 7.5
1) When using spacer brackets BD2-BD
2) Values for trunking units with tap-off points
3) Weights without joint block (weight of joint block BD2-400-SK: 3.5 kg,
BD2-1250-EK: 6.5 kg)
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Type BD2A-.-630 BD2A-.-800 BD2A-.-1000
Conducting paths
Rated insulation voltage Ui VAC/VDC 690/800 690/800 690/800
Overvoltage category/pollution degree III/3 III/3 III/3
Rated operating voltage Ue V AC 690 690 690
Frequency Hz 50...60 50...60 50...60 1)
Rated current Ie = therm. rated current at max. 40°C and
35°C average over 24 hours
A 630 800 1000
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with cold busbars)
Resistance R20 mΩ/m 0.073 0.073 0.051
Reactance X20 mΩ/m 0.058 0.058 0.058
Impedance Z20 mΩ/m 0.093 0.093 0.077
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with busbars at normal operating temperature)
Resistance R1 mΩ/m 0.091 0.098 0.066
Reactance X1 mΩ/m 0.057 0.057 0.057
Impedance Z1 mΩ/m 0.107 0.114 0.088
Impedance of conducting paths under fault conditions
AC current rating RF mΩ/m 0.225 0.225 0.157
Reactance XF mΩ/m 0.239 0.239 0.240
Impedance ZF mΩ/m 0.328 0.328 0.287
R0 mΩ/m 0.494 0.494 0.340
X0 mΩ/m 0.312 0.312 0.301
Phase N
Z0 mΩ/m 0.584 0.584 0.454
R0 mΩ/m 0.438 0.438 0.408
X0 mΩ/m 0.280 0.280 0.273
Zero impedance acc. to
DIN EN 60909-0/VDE 0102
Phase PE
Z0 mΩ/m 0.520 0.520 0.491
Short-circuit rating
Rated peak withstand current Ipk kA 64 84 90
t = 1 s kA 26 32 34
Rated short-time withstand current Icw
t = 0.1 s kA 32 40 43
Number of conductors 5 5 5
L1, L2, L3 mm2 446 446 699
N mm2 446 446 699
PE mm2 446 446 699
Conductor cross section
1/2 PE mm2 446 446 446
Conductor material Al Al Al
Planning with BD2
3.3 Technical data
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Type BD2A-.-630 BD2A-.-800 BD2A-.-1000
Max. fixing distances for trunking units under conventional mechanical load
Edgewise m 4 3.5 3
Edgewise with BD2-BD 2) m 2 1.75 1.5
Flat m 3.5 3 2.5
Fire load 3) kWh/m 2 2 2
Weight 4) kg/m 12.3 12.4 15.8
1) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents > 800 A
at a frequency of 60 Hz.
2) When using spacer brackets BD2-BD
3) Values for trunking units with tap-off points
4) Weights without joint block (weight of joint block BD2-400-SK: 3.5 kg, BD2-1250-EK 6.5 kg)
3.3.4 Trunking units BD2A (copper)
Type BD2C-.-160 BD2C-.-250 BD2C-.-400
Conducting paths
Rated insulation voltage Ui VAC/VDC 690/800 690/800 690/800
Overvoltage category/pollution degree III/3 III/3 III/3
Rated operating voltage Ue V AC 690 690 690
Frequency Hz 50...60 50...60 50...60
Rated current Ie = therm. rated current at max. 40°C and
35°C average over 24 hours
A 160 250 400
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with cold busbars)
Resistance R20 mΩ/m 0.303 0.295 0.144
Reactance X20 mΩ/m 0.157 0.158 0.119
Impedance Z20 mΩ/m 0.341 0.335 0.187
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with busbars at normal operating temperature)
Resistance R1 mΩ/m 0.333 0.383 0.181
Reactance X
1 mΩ/m 0.157 0.159 0.120
Impedance Z
1 mΩ/m 0.368 0.419 0.217
Planning with BD2
3.3 Technical data
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Type BD2C-.-160 BD2C-.-250 BD2C-.-400
Impedance of conducting paths under fault conditions
AC current rating RF mΩ/m 0.666 0.674 0.364
Reactance XF mΩ/m 0.511 0.530 0.461
Impedance ZF mΩ/m 0.839 0.858 0.587
R0 mΩ/m 1.419 1.429 0.718
X0 mΩ/m 0.691 0.703 0.658
Phase N
Z0 mΩ/m 1.579 1.593 0.974
R0 mΩ/m 1.027 1.139 0.672
X0 mΩ/m 0.641 0.530 0.503
Zero impedance acc. to
DIN EN 60909-0/VDE 0102
Phase PE
Z0 mΩ/m 1.211 1.256 0.839
Short-circuit rating
Rated peak withstand current Ipk kA 17 32 40
t = 1 s kA 5.5 10 16
Rated short-time withstand current Icw
t = 0.1 s kA 10 16 20
Number of conductors 5 5 5
L1, L2, L3 mm2 63 63 146
N mm2 63 63 146
PE mm2 63 63 146
Conductor cross section
1/2 PE mm2 63 63 146
Conductor material Cu Cu Cu
Max. fixing distances for trunking units under conventional mechanical load
Edgewise m 4 4 4
Edgewise with BD2-BD 1) m 4 4 4
Flat m 3.5 3.5 3.5
Fire load 2) kWh/m 1.32 1.32 1.32
Weight 3) kg/m 7.3 7.5 9.5
1) When using spacer brackets BD2-BD
2) Values for trunking units with tap-off points
3) Weights without joint block (weight of joint block BD2-400-SK: 3.5 kg, BD2-1250-EK 6.5 kg)
Planning with BD2
3.3 Technical data
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Type BD2C-.-630 BD2C-.-800 BD2C-.-1000 BD2C-.-1250
Conducting paths
Rated insulation voltage Ui VAC/VDC 690/800 690/800 690/800 690/800
Overvoltage category/pollution degree III/3 III/3 III/3 III/3
Rated operating voltage Ue V AC 690 690 690 690
Frequency Hz 50...60 50...60 50...60 1) 50...60 1)
Rated current Ie = therm. rated current at
max. 40°C and 35°C average over 24 hours
A 630 800 1000 1250
Impedance of conducting paths at 50 Hz and 20°C ambient
temperature (with cold busbars)
Resistance R20 mΩ/m 0.069 0.069 0.043 0.032
Reactance X20 mΩ/m 0.054 0.054 0.056 0.054
Impedance Z20 mΩ/m 0.088 0.088 0.071 0.063
Impedance of conducting paths at 50 Hz and 20°C ambient
temperature (with busbars at normal operating temperature)
Resistance R1 mΩ/m 0.087 0.091 0.056 0.041
Reactance X1 mΩ/m 0.054 0.054 0.056 0.054
Impedance Z1 mΩ/m 0.102 0.106 0.079 0.068
Impedance of conducting paths under fault conditions
AC current rating RF mΩ/m 0.173 0.172 0.118 0.094
Reactance XF mΩ/m 0.226 0.229 0.234 0.229
Impedance ZF mΩ/m 0.285 0.286 0.262 0.248
R0 mΩ/m 0.357 0.373 0.234 0.186
X0 mΩ/m 0.296 0.266 0.286 0.275
Phase N
Z0 mΩ/m 0.464 0.458 0.370 0.332
R0 mΩ/m 0.342 0.334 0.230 0.174
X0 mΩ/m 0.283 0.284 0.278 0.265
Zero impedance acc.
to DIN EN 60909-0/
VDE 0102
Phase PE
Z0 mΩ/m 0.444 0.438 0.361 0.317
Planning with BD2
3.3 Technical data
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Type BD2C-.-630 BD2C-.-800 BD2C-.-1000 BD2C-.-1250
Short-circuit rating
Rated peak withstand
current Ipk
kA 64 84 90 90
t = 1 s kA 26 32 34 34
Rated short-time withstand
current Icw t = 0.1 s kA 32 40 43 43
Number of conductors 5 5 5 5
L1, L2, L3 mm2 280 280 468 699
N mm2 280 280 468 699
PE mm2 280 280 468 699
Conductor cross section
1/2 PE mm2 280 280 280 468
Conductor material Cu Cu Cu Cu
Max. fixing distances for trunking units under conventional
mechanical load
Edgewise m 4 3.5 3 2
Edgewise with BD2-BD 2) m 2 1.75 1.5 1
Flat m 3.5 3 2.5 1.5
Fire load 3) kWh/m 2 2 2 2
Weight 4) kg/m 15.6 18.9 25.1 37.6
1) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents > 800 A
at a frequency of 60 Hz.
2) When using spacer brackets BD2-BD
3) Values for trunking units with tap-off points
4) Weights without joint block (weight of joint block BD2-400-SK: 3.5 kg, BD2-1250-EK 6.5 kg)
Planning with BD2
3.4 Conductor cross sections
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3.4 Conductor cross sections
3.4.1 Feeder units
Connection cross-sections 2)
L1, L2, L3 N PE Design Type
min.
mm²
max.
mm²
min.
mm²
max.
mm²
min.
mm²
max.
mm²
Size of
fixing
screws,
bolts
L1, L2,
L3, N, PE
BD2.-250-EE 1 × 6 1 × 150,
2 × 70
1 × 6 1 × 150,
2 × 70
1 × 6 1 × 150,
2 × 70
M10
BD2.-400-EE 1 × 10 1) 1 × 240,
2 × 120
1 × 10 1) 1 × 240,
2 × 120
1 × 10 1) 1 × 240,
2 × 120
M12
BD2.-1000-EE 1 × 10 1) 2 × 240,
3 × 185
1 × 10 1) 2 × 240,
3 × 185
1 × 10 1) 2 × 240,
3 × 185
M12
Feeder units
with bolt
connection
BD2.-1250-EE 1 × 10 1) 3 × 300,
4 × 240
1 × 10 1) 3 × 300,
4 × 240
1 × 10 1) 3 × 300,
4 × 240
M12
BD2C-250(315)-
EESC
1 x 10 1) 1 x 240 1 x 10 1) 1 x 240 Armouring M10
BD2C-400-EESC 1 x 10 1) 1 x 240,
2 x 120
1 x 10 1) 1 x 240,
2 x 120
Armouring M12
Feeder units
with switch
disconnector
BD2C-630(800)-
EESC
1 x 10 1) 2 x 240 1 x 10 1) 2 x 240 Armouring M12
BD2.-400-ME 1 × 10 1) 2 × 240,
3 × 185
1 × 10 1) 2 × 240,
3 × 185
1 × 10 1) 2 × 240,
3 × 185
M12 Centre feeder
units with bolt
connection BD2.-1000-ME 1 × 10 1) (1–5) × 300 1 × 10 1) (1–5) × 300 1 × 10 1) (1-5) × 300 M12
1) Minimum permissible cable cross section for cable lugs
2) Connection cross-sections refer to copper cables, cross-sections and diameters for
aluminium cables on request
Cable and wire entries
Type BD2.-250-EE BD2.-400-EE BD2.-1000-EE,
BD2.-400-ME
BD2.-1000-ME BD2.-1250-EE
1 x KT3 1) 2 x KT4 1) 3 x KT4 1) 6 x KT4 1) 4 x KT4 1) Cable grommets for
cable diameters mm 14...54 14...68 14...68 14...68 14...68
1) With strain relief
Planning with BD2
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Cable entry plate single-core system (undrilled cable entry plates)
Type BD2.-250-EE BD2.-400-EE BD2.-1000-EE BD2.-1250-EE
Cable entry plate BD2-250-EBAL BD2-400-EBAL BD2-1000-EBAL BD2-1250-EBAL
No. of cable entries (maximum) 10 x M32,
5 x M40
10 x M40 15 x M40,
6 x M50 and 4 x M40
20 x M50
Plastic cable glands with strain relief must be used (these are not included in the scope of
supply).
Cable entry plate single-core system for centre feeder units (undrilled cable entry plates)
Type BD2.-400-ME... BD2.-1000-ME
Cable entry plate BD2-400-MBAL BD2-1000-MBAL
No. of cable entries (maximum) 12 x M40 and 3 x M32,
6 x M50 and 4 x M40
31 x M40,
16 x M50 and 4 x M40
Plastic cable glands with strain relief must be used (these are not included in the scope of
supply).
Cable entry plate feeder unit with switch disconnector (undrilled cable entry plates)
Type BD2C-250(315, 400)-EESC BD2C-630(800)-EESC
No. of cable entries (maximum) 1 x 65.7 mm 2 x 65.7 mm
Planning with BD2
3.4 Conductor cross sections
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3.4.2 Tap-off units
Connection cross-sections 1)
L1, L2, L3 N PE Size of
fixing
screws,
bolts L1,
L2, L3
Name Type
min
mm²
max
mm²
min
mm²
max
mm²
min
mm²
max
mm²
Up to 25 A BD2-AK1/S14 0.5 (f, m) 4 (e) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK1/S18 0.5 (f, m) 16 (e, f, m) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK1/A... 0.75 (e, m) 16 (e) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK1/A...N 0.75 (e, m) 16 (e) 0.75 (e, m) 16 (e) 1 (e, f, m) 6 (e, m) –
BD2-AK1/F... 0.75 (e, m) 16 (e) 1 (e, m) 6 (e) 1 (e, f, m) 6 (e, m) –
BD2-AK1/F...N 0.75 (e, m) 16 (e) 0.75 (e, m) 16 (e) 1 (e, f, m) 6 (e, m) –
Up to 63 A BD2-AK.2X/S18 0.5 (f, m) 25 (f, m) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK.2X/S27 0.75 (f, m) 10 (e, f, m) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK.2X/S33 1.5 (f, m) 25 (f, m) 2.5 (e, f, m) 16 (e, m) 2.5 (e, f, m) 16 (e, m) –
BD2-AK.2M2/A... 0.75 (e, m) 25 (m) 2.5 (e, f, m) 25 (m) 2.5 (e, f, m) 25 (m) –
BD2-AK.2M2/A...N 0.75 (e, m) 25 (m) 0.75 (e, f, m) 25 (m) 2.5 (e, f, m) 25 (m) –
BD2-AK.2X/F... 0.75 (e, m) 25 (m) 2.5 (e, f, m) 25 (m) 2.5 (e, f, m) 25 (m) –
BD2-AK.2X/
GB32...
0.75 (e, m) 16 (e, m) 0.75 (e, m) 16 (e, m) Armouring –
BD2-
AK.2X/GB63...
0.75 (e, m) 50 (m) 0.75 (e, m) 50 (m) Armouring –
Up to 125 A BD2-AK.3X/
LSD40-LSD125
2.5 (e, m) 70 (m) 2.5 (e, m) 70 (m) 2.5 (e, m) 70 (m) –
BD2-AK3X/GS00 16 70 16 70 10 70 M8
BD2-AK.3X/
GSTZ(A)00
16 70 16 70 10 70 M8
BD2-AK.3X/
GB100...
6 (e, m) 70 (m) 6 (e, m) 70 (m) Armouring –
BD2-AK03X/
T(S)PNR100...
6 (e, m) 70 (m) 6 (e, m) 70 (m) Armouring –
Up to 250 A BD2-AK04/SNH1 6 150 6 150 6 150 M10
BD2-AK04/FS... 6 150 6 150 6 150 M10
BD2-AK04/LS... 6 120 (m) 6 (e, m) 150 6 150 M8
Planning with BD2
3.4 Conductor cross sections
SIVACON 8PS - Planning with SIVACON 8PS
76 Planning Manual, 09/2011, A5E01541101-02
L1, L2, L3 N PE Size of
fixing
screws,
bolts L1,
L2, L3
Name Type
min
mm²
max
mm²
min
mm²
max
mm²
min
mm²
max
mm²
Up to 400 A BD2-AK05/SNH2 10 2 × 120 10 2 × 120 10 2 × 120 M10
BD2-AK05/FS... 10 2 × 120 10 2 × 120 10 2 × 120 M10
BD2-AK05/LS... 10 2 × 120 10 2 × 120 10 2 × 120 M8
Up to 630 A BD2-AK06/SNH3 10 2 × 240 10 2 × 240 10 2 × 240 M12
BD2-AK06/LS... 10 2 × 240 10 2 × 240 10 2 × 240 M10
e = solid, m = stranded, f = finely-stranded with end sleeve
1) Connection cross-sections refer to copper cables, cross-sections and diameters
for aluminium cables on request
Cable and wire entries
Type BD2-AK1/... BD2-AK.2... BD2-AK.3... BD2-AK04 BD2-AK05 BD2-AK06
Cable grommets M25 2) — — KT3
3) 2 × KT4 3) 2 × KT4 3)
Cable glands 1) — M25, M32,
M40
M25, M40,
M63
— — —
for cable
diameters
mm 11 ... 6 11 ... 27 11 ... 42 14 … 54 14 … 68 14 … 68
Min./max. insertable cable cross-sections for NYY and NYCWY with multi-core cable for
NYY... mm2 5 × 1,5 …
5 × 4
5 × 1,5 …
5 × 16
5 × 1,5 …
5 × 25
— — —
NYCWY... 4) mm2 4 × 1,5 …
4 × 2.5
4 × 1,5 …
4 × 16
4 × 1,5 …
4 × 70
5 × 1,5 …
4 × 150
2 × 5 × 1,5 …
2 × 4 × 150
2 × 5 × 10 …
2 × 4 × 240
Cable entry plate for single-core cable (add-on plates, undrilled)
No. of cable entries, max. — — — 10 × M40 10 × M32,
5 × M40
10 × M40
1) For cable glands: Plastic cable glands with strain relief must be used (these are not included in the
scope of supply).
2) Strain relief in the BD2-AK1/...
3) With strain relief
4) Fifth conductor: concentric conductor.
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 77
3.5 Dimension drawings
3.5.1 Straight trunking units
BD2.-.-...
&HQWUHMRLQWEORFN
F
Q
Length
m
No. of tap-off units on both sides
n x 500
0.5 ... 1.25 -
1.26 ... 2.25 4 ... 8
2.26 ... 3.25 8 ... 12
In the case of optional lengths, tap-off units cannot be connected at all tap-
off points.
1///3(
1///3(
$
$
Planning with BD2
3.5 Dimension drawings
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78 Planning Manual, 09/2011, A5E01541101-02
3.5.2 Junction units
L units
[ ದ
* ದ
\ ದ
F
Figure 3-22 BD2.-....-LR-...(-G*), BD2.-...-LL-...(-G*)
F
[ ದ
\ ದ
* ದ
Figure 3-23 BD2.-...-LV...(-G*), BD2.-...-LH-...(-G*)
Rated current
A
c
mm
160 ... 400 68
630 ... 1250 126
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 79
Z units
[ ದ
] ದ
\ ದ
F
Figure 3-24 BD2.-...-ZR-..., BD2.-...-ZL-...
\ ದ
F
[ ದ
]
Figure 3-25 BD2.-...-ZV, BD2.-...-ZH-...
Rated current
A
z
mm
160 ... 400 140 ... 1250
630 ... 1250 260 ... 1250
Planning with BD2
3.5 Dimension drawings
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80 Planning Manual, 09/2011, A5E01541101-02
T units
F
F
Figure 3-26 BD2.-...-TR, BD2.-...-TL
F
F
Figure 3-27 BD2.-...-TV, BD2.-...-TH
Rated current
A
c
mm
c1
mm
160 ... 400 68 64
630 ... 1250 126 122
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 81
K units
F
F
Figure 3-28 K units BD2.-...-KRL
F
F
169B
Figure 3-29 K units BD2.-...-KVH
Rated current
A
c
mm
c1
mm
160 ... 400 68 64
630 ... 1250 126 122
Planning with BD2
3.5 Dimension drawings
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82 Planning Manual, 09/2011, A5E01541101-02
Movable junction units
D
F
E
F
F
F
D D D
Figure 3-30 BD2-400-R, BD2-800-R
Type a1 a2 a3 a4 b c c1 c2 c3
BD2-400-R 1250 512 187 187 79 68 64 101 50
BD2-800-R 1750 786 350 250 146.5 126 122 195 145
U shape
F
5
Type c6 Rmin
BD2-400-R 220 110
BD2-800-R 340 110
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 83
Z shape
F
D
D
Type a5 a6 c6 Rmin
BD2-400-R 175 1000 355 110
BD2-800-R 530 1590 400 110
3.5.3 Distribution board feeder
F
Figure 3-31 BD2.-250-VE
F
F
F
Figure 3-32 BD2.-400-VE, BD2.-1000-VE
Planning with BD2
3.5 Dimension drawings
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84 Planning Manual, 09/2011, A5E01541101-02
Figure 3-33 BD2.-1250-VE
'HYLFHFXWRXW
D
E
Type a b c c1 c2
BD2.-250-VE
BD2.-400-VE
34 68 121 64 84
BD2.-1000-VE
BD2.-1250-VE
92 126 155.5 122 142
3.5.4 End feeder units
Figure 3-34 BD2.-250-EE
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 85
Figure 3-35 BD2.-400-EE
Figure 3-36 BD2.-1000-EE
Planning with BD2
3.5 Dimension drawings
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86 Planning Manual, 09/2011, A5E01541101-02
Figure 3-37 BD2.-1250-EE
End feeder units with switch disconnector
Figure 3-38 BD2C-250-EESC, BD2C-315-EESC
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 87
Figure 3-39 BD2-400-EESC
Figure 3-40 BD2-630-EESC, BD2-800-EESC
Planning with BD2
3.5 Dimension drawings
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88 Planning Manual, 09/2011, A5E01541101-02
3.5.5 Cable compartments
Figure 3-41 BD2-400-KR (BD2.-400-EE)
Figure 3-42 BD2-1000-KR (BD2.-1000-EE)
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 89
Figure 3-43 BD2-1250-KR (BD2.-1250-EE)
3.5.6 Centre feed
Figure 3-44 BD2.-400-ME
Planning with BD2
3.5 Dimension drawings
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90 Planning Manual, 09/2011, A5E01541101-02
Figure 3-45 BD2.-1000-ME
3.5.7 Tap-off units
3.5.7.1 Tap-off units up to 25 A
Size 1 up to 25 A
Figure 3-46 BD2-AK1/...
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 91
F
F
Figure 3-47 BD2-AK1/3SD163..., BD2-AK1/3DK..., BD2-AK1/2T23..., BD2-AK1/3T23..., BD2-
AK1/T25...
F
F
Figure 3-48 BD2-AK1/2CEE163
F
F
Figure 3-49 BD2-AK1/CEE165...
Type c1 c2
BD2-AK1/3SD163...,
BD2-AK1/3DK...,
BD2-AK1/2T23...,
BD2-AK1/3T23,
BD2-AK1/T25...
71 13
BD2-AK1/2CEE163 88 44
BD2-AK1/CEE165 106 52
Planning with BD2
3.5 Dimension drawings
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92 Planning Manual, 09/2011, A5E01541101-02
3.5.7.2 Tap-off units up to 63 A
Size 02 up to 63 A
0000
Figure 3-50 BD2-AK02X/F..., BD2-AK02X/GB..., BD2-AK02X/S...
Figure 3-51 BD2-AK02M2/A..., BD2-AK02M2/F
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 93
Size 2 up to 63 A
000
0 0
Figure 3-52 BD2-AK2X/F..., BD2-AK2X/GB..., BD2-AK2X/S...
Figure 3-53 BD2-AK2M2/A..., BD2-AK2M2/F
Designs with CEE, BS and CH sockets as well as sockets with earthing contacts
Figure 3-54 BD2-AK2X/CEE635S33
Planning with BD2
3.5 Dimension drawings
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94 Planning Manual, 09/2011, A5E01541101-02
E
BD2-AK2X/CEE325S33
BD2-AK2M2/CEE325A323
BD2-AK2X/2CEE165S14
BD2-AK2M2/2CEE165A163
BD2-AK2X/2CEE165S27 (/FORMP)
BD2-AK2M2/T25...
BD2-AK2M2/T23(T25)...CEE165...
BD2-AK2M2/T23(T25)...CEE325...
E E
Figure 3-55 BD2-AK2X/3BS133...
E E
Figure 3-56 BD2-AK2M2/2SD163CEE165A163
Type b1 b2
BD2-AK2X/CEE325S33
BD2-AK2M2/CEE325A323
BD2-AK2X/2CEE165S14
BD2-AK2M2/T23(T25)...CEE325
98 -
BD2-AK2X/2CEE165S27 (/FORMP)
BD2-AK2M2/2CEE165A163
BD2-AK2M2/T23(T25)...CEE165
86 -
BD2-AK2M2/T25... 54 -
BD2-AK2X/3BS133... - 54
BD2-AK2M2/2SD163CEE165A163 86 54
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 95
3.5.7.3 Tap-off units up to 125 A
Size 03 up to 125 A
0000
Figure 3-57 BD2-AK03X/F..., BD2-AK03X/GB..., BD2-AK03X/TPNR..., BD2-AK03X/SPNR...
Figure 3-58 BD2-AK03M2/A...
Planning with BD2
3.5 Dimension drawings
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96 Planning Manual, 09/2011, A5E01541101-02
Designs with fuse switch disconnector and circuit breaker
BD2-AK03X/GSTA00 BD2-AK03X/FS...
Figure 3-59 BD2-AK03X/LSD
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 97
Size 3 up to 125 A
000
0 0
Figure 3-60 BD2-AK3X/GS00, BD2-AK3X/GB...
Design with fuse switch disconnector
5
Figure 3-61 BD2-AK3X/GSTZ00
Planning with BD2
3.5 Dimension drawings
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98 Planning Manual, 09/2011, A5E01541101-02
3.5.7.4 Tap-off units up to 250 A
Size 04 up to 250 A
FD
Figure 3-62 BD2-AK04/LSD...
Figure 3-63 BD2-AK04/SNH1, BD2-AK04/GB250J-...
Figure 3-64 BD2-AK04/FS...
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 99
3.5.7.5 Tap-off units up to 530 A
Sizes 05, 06 up to 530 A
FD
Figure 3-65 BD2-AK05/LSD..., BD2-AK06/LSD...
Figure 3-66 BD2-AK05/SNH2, BD2-AK06/SNH3
Figure 3-67 BD2-AK05/FS...
Planning with BD2
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100 Planning Manual, 09/2011, A5E01541101-02
3.5.8 Ancillary equipment units
K
Type h
BD2-GKM2/F 101
BD2-GKX/F 151
Figure 3-68 BD2-GKM2/F
Figure 3-69 BD2-GKX/F
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 101
3.5.9 Additional equipment
Bushing protector
BD2-400-D BD2-1250-D BD2-...-D
Fire protection
+BD2-S90 (S120)-...
BD2.-160 (-250, -400)-...
BD2.-630 (-800, -1000, -1250)-...
Joint block
D
Figure 3-70 BD2-400-SK, BD2-1250-EK
Type a
mm
BD2-400-SK 68
BD2-1250-EK 126
Planning with BD2
3.5 Dimension drawings
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102 Planning Manual, 09/2011, A5E01541101-02
F
① Length of trunking unit
② End of end cap = centre of joint block
Figure 3-71 BD2-400-FE, BD2-1250-FE
Type c
mm
BD2-400-FE 68
BD2-1250-FE 126
Mounting
Fixing bracket, flat and edgewise
F
F
Figure 3-72 BD2-400-BB, BD2-1250-BB
Type c
mm
c1
mm
BD2-400-BB 86.5 48
BD2-1250-BB 144.5 77
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 103
Spacer
Figure 3-73 BD2-DSB
Spacer bracket
F
Figure 3-74 BD2-BD
Type c
mm
BD2-400-BD 30 ... 82
BD2-1250-BD 50 ... 82
Note
Mounting on a concrete wall
In the case of mounting directly on a concrete wall, use only steel and straddling dowel pins
compliant with building regulations, e.g.:
Order no. 15J1-A08/40 by RICO
SLM8N item no. 50521 by Fischerwerke
Planning with BD2
3.5 Dimension drawings
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104 Planning Manual, 09/2011, A5E01541101-02
Vertical fixing elements
ದ
BD2-BWV BD2-BDV
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 105
Vertical fixing bracket
BD2-BVF
PD[
PLQ
% %
Figure 3-75 BD2-BVC
Planning with BD2
3.5 Dimension drawings
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106 Planning Manual, 09/2011, A5E01541101-02
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Planning Manual, 09/2011, A5E01541101-02 107
Planning with LD 4
4.1 System description
① Additional equipment
② Tap-off units
③ Straight trunking units
④ Junction units
⑤ Feeder units
⑥ Distribution board connection units
Figure 4-1 Overview of LD busbar trunking system
Planning with LD
4.2 System components
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108 Planning Manual, 09/2011, A5E01541101-02
The LD busbar trunking system is used for both power transmission and distribution. The
system offers a high short-circuit rating and is particularly suited for the connection of
transformers to low-voltage main distribution boards and sub-distribution boards.
In applications where high powers are required, conventional systems frequently require the
use of parallel cables. The LD system offers optimal power distribution for both horizontal
and vertical busbar runs. Coded plug-in tap-off units up to 1250 A that meet extremely high
safety standards are available for this purpose.
4.2 System components
4.2.1 Preliminary technical descriptions for specifications
The busbar trunking systems should be offered as type-tested low-voltage switchgear and
controlgear assemblies TTA to IEC/EN 60439-1 and -2, DIN VDE 0660 Part 500 and Part
502 (German standard), as a steel-encapsulated ready-to-connect system.
The distribution systems must be suitable forpower transmission, e.g. between transformer
and low-voltage main distribution boards, as well as for power distribution providing a supply
of power to an entire area.
The brand offered must be a complete system consisting of system modules, including
transformers and elements for connection to the distribution boards, as well as such as
brackets, straight trunking units and junction units. All components should be available both
in straight and offset versions.
Trunking units with tap-off openings should be able to be equipped with coded tap-off units.
Tap-off units are protected against incorrect mounting. Depending on the type, the isolation
of the tap-off units during removal is assured by a compulsory sequence of operations or by
cautionary instructions.
If required, the busbar trunking system should be capable of being equipped with asbestos-
free fire barriers which comply with fire resistance class S 120, and which have been
certified by the local or government authority responsible for building standards. The trunking
unit's steel enclosure is made of moulded steel profiles to permit large fixing distances
between suspension points. Theenclosure is galvanised and painted in a light grey colour
(RAL 7035).
The external dimensions may not exceed 180 x 180 (240) mm.
The individual system modules are connected by hanging a hook from a bolt and tightening
a state-of-the-art maintenance-free single-bolt clamp. The conductor between two system
units should not be connected with screws.
The conductor material is made of aluminium or of copper if the rated current requires. The
aluminium conductor must be nickel-plated and tinned, and the copper conductor must be
tinned and provided with an additional insulating layer of epoxy-resin.
The fire load must not exceed the value specified in the technical data. Junction units with
flexible connections or cable connections are not permitted.
Planning with LD
4.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 109
The following certificates or declarations of conformity must accompany the offer:
● DIN ISO 9001 QA certification
● Proof of sprinkler testing
● Proof of prevention of propagation of an arcing fault
● Proof that the system is maintenance-free
Following the general information, a precisedescription of the system based on the technical
requirements should be provided as follows:
Technical data for LD busbar trunking system
Rated current _________1)
Degree of protection IP34/IP54
Mounting position Horizontal/vertical 2)
Rated insulation voltage 1000 V AC
Rated operating voltage 1000 VAC
Rated frequency 50 / 60 Hz 3)
Rated peak withstand current Ipk _________1)
Rated short-time withstand current Icw (1 s) _________1)
Conductor material Al/Cu 2)
No. of conductors L1 – L3 and PEN (4 bars/4-pole)
L1 – L3 and ½ PEN (7 bars/4-pole)
L1 – L3 and PEN (8 bars/4-pole)
L1 – L3, N, PE (5 bars/5-pole)
L1 – L3, ½ N, ½ PE (8 bars/5-pole)
L1 – L3, N, ½ PE (9 bars/5-pole)
Fire load without tap-off points _________1)
LDA1 to LDC3 180 x 180 mm 2) Enclosure dimensions
LDA4 to LDC8 240 x 180 mm 2)
1) Enter data for selected systems. See technical data for values.
2) Please delete as appropriate.
3) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents
> 800 A at a frequency of 60 Hz.
Important planning information
The nominal mounting position of the busbar trunking system is horizontal and edgewise for
the busbars. In very rare cases, due to a specific trunking run or the option of connecting
tap-off units on the side, the busbars might have to be laid flat. The resulting increase in the
internal heat rise of the system necessitates a reduction in rated current. The same applies
to vertical height rises > 1.3 m (see the table in the next section "Type codes").
The LD busbar trunking system is a ventilated system. When the degree of protection is
increased from IP34 to IP54 (enclosed system), the rated current must be derated as
specified in the tables in the next section.
Planning with LD
4.2 System components
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110 Planning Manual, 09/2011, A5E01541101-02
4.2.2 Type code
Definition of the required system using the type code
The basic components of the LD system are determined using a type code. The type is
specified and selected on the basis of rated current, conductor material, system type and
degree of protection.
The resulting type code enables the required system to be precisely defined.
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Planning with LD
4.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 111
Selection example
A rated current of 2500 A is calculated for a project. Aluminium conductors shall be used. A
4-pole system has to be used. The cross section of the protective conductor needs to be
equal to the cross section of the phase conductor. The required degree of protection is IP34.
The mounting position is horizontal, edgewise, without height rises. Use of the above table
results in the selection of the following type:
LDA 5423
4.2.3 Sizes, conductor configurations and structure of the busbar package
The LD busbar trunking system is available in two sizes. You can also select the line system
configuration (4-pole/5-pole) and the size of the N/PEN cross section as appropriate for your
application.
Conductor configuration 4-pole 5-pole
180 mm x 180 mm PEN = L PE = N = L
LDA1.2. to LDA3.2.
LDC2.2. to LDC3.2.
/ / /
3(1
/ / /
3(1
240 mm x 180 mm PEN = ½ L PE = N = ½ L
LDA4.1. to LDA8.1.
LDC6.1. to LDC8.1.
/
/
/
/
/
/
3(1
/
/
/
/
/
/
13(
240 mm x 180 mm PEN = L PE = ½ L, N = L
LDA4.2 to LDA8.2.
LDC6.2. to LDC8.2.
/
/
/
3(1
/
/
/
3(1
/
/
/
13(
/
/
/
1
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Structure of the busbar package
An example a 7-bar system (sectional view) is illustrated below. The positions of the
individual phases and the protective conductor PEN are indicated. You can also see the
enclosure profile.
/
/
/
/
/
/
3(1
Figure 4-2 Sectional drawing of a 7-bar system
LD busbar systems are available with aluminium (LDA....) and also copper (LDC....)
conductor materials. Due to the conductors’ special surface finishing, trunking units with
different conductor materials can be combined. In addition to tinning, aluminium bars are
also coated with a layer of nickel.
① Aluminium bar
② Nickel layer, tinning
③ Moulded-plastic coating with high heat resistance
LDA busbar systems with aluminium conductors
① Copper bar
② Tinning
③ Moulded-plastic coating with high heat resistance
LDC busbar systems with copper conductors
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In order for short-circuit rating to be assured and for the pitch of the bars to be maintained,
bar supports are fitted every 200 mm (see diagram):
PP
Figure 4-3 Bar supports fitted
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4.2.4 Straight trunking units
Straight trunking units are used to transmit electrical power and to supply loads.
Straight trunking units for horizontal installation
Without tap-off points
$'
With tap-off points
Length Type
1.6 m LD.....-1.6
2.4 m LD.....-2.4
Standard lengths
3.2 m LD.....-3.2
0.50...0.89 m LD.....-1W*
0.90...1.59 m LD.....-2W*
1.61...2.39 m LD.....-3W*
Optional lengths
2.41...3.19 m LD.....-4W*
Straight trunking unit for expansion
compensation
1.2 m LD.....-D
3.2 m LD.....-K-3, 2-3AD
3 tap-off points
3.2 m LD.....-K-3,2-2AD
2 tap-off points
Standard lengths
with 1, 2 or 3 tap-off points
3.2 m LD.....-K-3.2-AD
1 tap-off point
2.20...2.40 m LD.....-K-2W*-2AD Optional lengths
with 2 tap-off points 2.41...3.20 m LD.....-K-3W*-2AD
1.20...1.60 m LD.....-K-1W*-AD
1.61...2.40 m LD.....-K-2W*-AD
Optional lengths
with 1 tap-off point
2.41...3.20 m LD.....-K-3W*-AD
W = optional length
* = length in m
AD Tap-off point
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Straight trunking units for vertical installation
Without tap-off points with integrated
expansion compensation
$'
With 1 tap-off point and integrated expansion
compensation
Length Type
2.4 m LD.....-V-2.4 Standard length
3.2 m LD.....-V-3.2
2.29 ... 2.80 m LD.....-V-1W*
2.81 ... 3.00 m LD.....-V-2W*
Optional lengths
3.01 ... 3.19 m LD.....-V-3W*
2.4 m LD.....-K-V-2.4-AD Standard lengths
with 1 tap-off point 3.2 m LD.....-K-V-3.2-AD
2.29 ... 2.80 m LD.....-K-V-1W*-AD
2.81 ... 3.00 m LD.....-K-V-2W*-AD
Optional lengths
with 1 tap-off point
3.01 ... 3.19 m LD.....-K-V-3W*-AD
W = optional length
* = length in m
AD Tap-off point
Note
Expansion compensation
Due to heat dissipation at rated load, the busbars in the trunking unit expand. To
compensate this expansion in length, you need to include expansion compensation units at
defined intervals when planning your horizontal installation.
With trunking units for vertical installation, the expansion compensation is integrated.
When planning horizontal busbar runs, please remember:
A straight trunking run without expansion compensation between two junction units must
not exceed 10 m in length.
A straight trunking run between a junction unit and the end cap must not exceed 25 m in
length. In the case of longer trunking run lengths, planning provision has to be made
accordingly for expansion compensation units.
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Tap-off points
Tap-off points are only possible on straight trunking units (both standard lengths and optional
lengths possible). Options are:
● Tap-off point on TOP: ...-AD
● Tap-off point BOTTOM: ...-ADU
● Tap-off points on TOP and BOTTOM: ...-ADO+U
With a trunking unit with a tap-off point at the TOP and BOTTOM, only one tap-off unit can
be used at a time. The required distance between tap-off points is 1 m.
The required type should be determined during engineering, based on the mounting position
of the busbar.
In the case of optional trunking units with tap-off point, a minimum clearance of 0.6 m is
required between the end of the busbar and a tap-off point.
A coding bracket is located on both sides of a tap-off point. This guarantees non-
interchangeability and correct phasing sequence installation of the tap-off units.
Figure 4-4 Trunking unit with tap-off point
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4.2.5 Junction units
Junction units for horizontal installation
<;
Elbow LD.....-L...
<
=
;
Z unit LD.....-Z.-Z*
Length Type
X = 0.5...1.24 m
Y = 0.5...1.24 m
LD.....-L...
Length System Trunking unit Type
X/Y = 0.5 m Z = 0.36 ... 0.99 m LD.1 to LD.3 180 x 180 mm
Z = 0.48 ... 0.99 m LD.4 to LD.8 240 x 180 mm
LD.....-Z.-Z*
* Optional length in m
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Junction units for horizontal and vertical installation
<
;
Elbow LD.....-L.
;
<
=
Z unit LD.....-Z.-Z*
Length Type
X = 0.5...1.24 m
Y = 0.5...1.24 m
LD.....-L...
X = 0.5...1.24 m
Y = 0.5...1.24 m
Z = 0.36...0.99 m
LD.....-Z.-Z*
;
<
Offset knee LD.....-L.
7< 7;
$
T unit LD.....-T.
Length Type
X = 0.5...1.24 m
Y = 0.5...1.24 m
LD.....-L...
TX = 0.58 m
TY = 0.62 m
A = 0.5 m
LD.....-T.
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4.2.6 Distribution link for Siemens power distribution boards
Connection to the Siemens SIVACON power distribution system as type-tested low-voltage
switchgear and controlgear assembly (TTA) compliant with DIN EN 60439-1 and DIN EN 60439-2
The busbar trunking system can be linked to the distribution system from above or below.
The link between the busbar trunking system and the SIVACON 8PV, 8PT, S4 and S8
distribution system ensures high short-circuit rating backed up by type testing and huge
reliability as regards power transmission.
Rated currents
All modules for rated currents up to 5000 A have been type tested.
Figure 4-5 Distribution board link
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4.2.7 Connection unit for non-Siemens distribution boards
If you wish to connect the busbar trunking system to a non-Siemens distribution board, you
can establish this connection using an LD connection unit for non-Siemens distribution
boards .... . The connection unit is built into the distribution board and serves as an interface
to the copper connections of the distribution system.
Rated currents
● The maximum rated currents are listed in the Technical data section.
● The temperature limit of busbars coated with insulating materials is 135°C.
● Possible conductor cross sections for the copper connections are also listed in the
Technical data section.
Installing the connection unit
The connections in the distribution board must be copper-plated by the board manufacturer
or in compliance with that manufacturer's specifications. The board manufacturer must
ensure that the required short-circuit rating is achieved and the permissible temperature limit
of the non-Siemens connection unit is not exceeded.
Figure 4-6 Connection unit for non-Siemens distribution boards
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4.2.8 Connection unit for transformers and distribution boards
There are four different transformer connection pieces (LD.....-AS.) available for all rated
current ranges to connect various transformers to a busbar trunking system:
D
Connection unit LD.....-AS...
D
Connection unit LD.....-AS.-T
Type of connection unit Selectable phase clearance Possible phase sequences
LD.....-AS1(-T) 150...180 mm
a = 725 m
L1, L2, L3, PEN
PEN, L3, L2, L1
LD.....-AS2(-T) 190...380 mm
a = 1085 m
L1, L2, L3, PEN
PEN, L3, L2, L1
LD.....-AS3(-T) 450...750 mm
a = 1430 m
Lx, PEN, L2, Lx
Lx, L2, PEN, Lx
Lx = L1 or L3
LD.....-AS4(-T) 450...750 mm
a = 1930 m
L1, L2, L3, PEN
PEN, L3, L2, L1
We recommend a maximum clearance of 200 mm between the tags on the connection
piece.
The universal connection unit can also be used to connect distribution boards.
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4.2.9 Incoming cable connection unit
If power needs to be supplied to the busbar trunking system via cables, you should use an
LDA(C)....-KE incoming cable connection unit.
Figure 4-7 Incoming cable connection unit
The incoming cable connection unit is designed for the following rated currents:
● 1100 to 2600 A (with IP34)
● 900 to 2000 A (with IP54).
Enclosure sizes
Depending on the system, three sizes can be selected:
Size 1: LDA1...-KE to LDA2...-KE
Size 2: LDA3...-KE and LDA4...-KE
LDC2...-KE
Size 3: LDA5...-KE.
The maximum dimensions are 920 mm x 639 mm x 490 mm (W x H x D).
IP34 or IP54 degree of protection can be selected.
You can connect single-core or multi-core cables. You can connect cross sections up to
300 mm2 (bolted connection) directly to the incoming cable connection unit bars.
The sheet steel flange plates and the cable sleeves are included in the scope of supply of
the standard product. Single-core cables are supplied with an undrilled aluminium plate for
cable entry.
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4.2.10 Coupling units
Coupling units are used if devices or sections of the power supply need to be disconnected
or connected accordingly. To adapt the busbar trunking system to the actual load, the busbar
cross section can be reduced and protected against short circuits and overloads with a
coupling unit.
Coupling units can be fitted with switch disconnectors or circuit breakers as appropriate for
their application. Coupling units resistant to accidental arcs can be supplied as an option.
Figure 4-8 Coupling units
Rated currents
Rated currents adapted to the systems between 1100 and 3000 A can be supplied as
appropriate for the application.
Operator control
The coupling units can be operated using a handle or even a motor drive.
Dimensions
The installation length in the busbar trunking run is 1600 mm.
The dimensions are dependent on the device type and the current size and must be
obtained project-specifically.
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4.2.11 Tap-off units
Tap-off for different current ratings
Tap-offs for different current ratings are required, depending on the application and type and
size of loads. These tap-offs are implemented in the form of tap-off units with fuse switch-
disconnectors or with circuit breakers.
There are basically two types of tap-off unit:
● With fuse switch disconnector
● With circuit breaker
Figure 4-9 Tap-off unit with fuse switch disconnector and trunking unit with tap-off point
Early-make PE/PEN
The current tap in the tap-off unit is implemented as an early-make (mounting) or late-break
(removal) PE/PEN conductor contact.
In a 4-conductor system, this is ensured by a longer PEN bar at the contact mechanism. In a
5-conductor system the PE connection is established via grinding contacts on the coding
brackets.
Anti-rotation feature and non-interchangeability
The coding brackets on the tap-off unit and on the trunking unit's tap-off point (lock-and-key
principle) ensure:
● Non-interchangeability and correct assignment of 4 or 5-pole tap-off units to the
associated LD systems
● Orientation feature to prevent incorrect connections between the tap-off units and tap-off
points
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4.2.11.1 Tap-off units with fuse switch disconnector
Rated currents
Tap-off units 125 A, 2 x 125 A, 250 A, 400 A and 630 A are available for selection.
Depending on the current level, LV HRC fuses size NH 00, NH 1, NH 2 or NH 3 are used.
The compact dimensions mean that only one enclosure size is required for all rated current
ranges.
Operator control
The tap-off units with fuse switch disconnector are operated by hand using a swivel
mechanism.
Degree of protection
The standard degree of protection is IP30. IP54 degree of protection can be provided as an
option.
Degree of protection IP30
Degree of protection IP54
Cable compartment/cable entry
A bolted connection is used for cables with cross sections up to 2 x 240 mm2. In the
standard version, the cable entry is on the front face. Adding a cable compartment enables
cable entry from the side. The cables are routed via an integrated cable propping bar in the
tap-off unit (cleats to be provided by the customer). The sectional flange plate facilitates the
laying of the cables.
Opening the tap-off unit
Do not open the cable compartment cover until you have removed the fuse switch
disconnector handle and, consequently, the fuse. This will ensure that the cable
compartment is voltage-free when the cover is removed. The part of the contact device in the
front of the tap-off unit is "finger-proof".
Type designation
The type designation for tap-off units with LV HRC fuse switch disconnectors is
LD-.AK/3ST...
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4.2.11.2 Tap-off units resistant to accidental arcs and with fuse switch disconnector
Rated currents
Two tap-off units for 400 A and 540 A are available for selection for use with LV HRC fuses.
Operator control
The LV HRC fuse links of size NH 3 are switched on and off via the door-coupling operating
mechanism.
Degree of protection
The standard degree of protection is IP54.
Figure 4-10 Degree of protection IP54
Cable compartment/cable entry
A bolted connection is used for cables with cross sections up to 2 x 4 x 240 mm2. Cables can
be fed in on both sides. In the case of a single-core cable entry, an aluminium plate fitted
with metric screwed joints is included in the scope of supply.
Resistance to arc faults
The tap-off units are resistant to arc faults. This has been verified by means of accidental arc
testing to IEC 439-1 Supplement 2, EN 60439-1 Supplement 2, VDE 0660 Part 500
Supplement 2 and confirmed by a test report.
Type designation
The type designation for tap-off units with LV HRC switch disconnectors is
LD- AK./FSAM.
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4.2.11.3 Tap-off units with circuit-breakers
On tap-off units with circuit breakers you can select the switching capacity, the number of
actively switched poles, the type of operator control and the signalling options:
● Rated currents from 100 A to 1250 A.
● 3 or 4-pole designs
● Switching capacity: normal, standard or high (see Technical data)
Circuit breaker with manual operating mechanism
Figure 4-11 Circuit breaker with manual operating mechanism
This type of tap-off unit has a circuit breaker which can be controlled from the outside using
a handle.
Degree of protection
The tap-off units have IP54 degree of protection.
Opening the tap-off unit
The contact compartment and the copper connections between the contact mechanism and
the circuit breaker are encapsulated in a finger-proof casing. The cover can only be opened
if the breaker has been deactivated. This ensures voltage-free load when the cover is
removed.
Cable connection
On the load side, the outgoing cables are routed directly via the circuit breaker. The PE/PEN
conductor is fixed to a bolted connection as appropriate for the cross section. Single-core or
multi-core cables can be fed in from the side or via the front face. The sectional flange plate
facilitates the laying of the cables.
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Circuit breaker with door handle, also available with motor drive
This version has a motor drive instead of a door handle.
Furthermore, you can choose either an undervoltage or a shunt release as appropriate for
your application. The operating voltage of the motorised operating mechanism must be
ensured externally (220 V AC to 250 V AC). The connections for the motor drive are
designed for terminal connection.
The feeder compartment and the copper connections between the contact mechanism and
the circuit breaker are encapsulated in a finger-proof casing. The connection on the load side
is made in the same way as on the version with door handle.
Type designation
The type designation for tap-off units with circuit breakers is LD-.AK./LS.
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4.2.12 Additional equipment
End caps
You will need to install an end cap with a hook or a bolt at the end of a busbar run depending
on the version of the trunking unit.
End cap with hook
End cap with bolt
Suspension bracket
The LD-B1/B2 suspension bracket is used to mount the busbar trunking system in a
horizontal installation.
● B1 for enclosure dimensions 180 mm x 180 mm
● B2 for enclosure dimensions 240 mm x 180 mm
Figure 4-12 Suspension bracket
Fixing bracket
If you install the LD system vertically, you will need to use the LD-BV fixing bracket (for fixing
distances, see the Dimension drawings section).
Figure 4-13 Fixing bracket
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4.3 Technical data
4.3.1 LD general data
Standards and regulations IEC 60439-1 and -2, DIN EN 60439-1 and -2
Resistance to extreme climates
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Cold in accordance with IEC 60068-2-1
Temperature change in accordance with IEC 60068-2-14
Salt spray test in accordance with IEC 60068-2-52
40°C / 93% / RH / 56d
56 x (25-40°C/3h ; 40°C/9h ; 40-25°C/3-6h ;
25°C/6h)/95% RH
-45°C, 16h
-45° to 55°C; 5 cycles (1°C/min); holding time min. 30 min
degree of severity 3
Ambient temperature min./max./24-hour average °C –5/+40/+35
Environmental classes 1K5, 3K7L, 2K2, 1C2, 2C2, 3C2, 1B2, 2B2, 3B2, 1S2, 2S2,
3S2
Degree of protection IP31 ventilated (with busbars installed horizontally and flat)
IP34 ventilated (with busbars installed horizontally and
edgewise)
IP54 enclosed
Standard mounting position Busbars installed edgewise in trunking units with horizontal
installation
Torque for single-bolt terminal Nm 80
Busbar surface treatment Entire length coated with insulating material, nickel-plated
and tinned: LDA;
tinned: LDC
Material trunking units, tap-off units Sheet steel with powdered paint finish
Colour of trunking units, tap-off units RAL 7035 (light grey)
Dimensions See Dimension drawings
Weight See Chapter Weights (Page 144)
Rated insulation voltage to DIN EN 60439-1 V AC 1000
Rated operational voltage (power transmission)
with overvoltage category III/3
with overvoltage category IV/3
V AC
V AC
1000
690
Rated operational voltage (power distribution)
with overvoltage category III/3
V AC 400 (690) 1)
Rated frequency Hz 50 / 60 2)
1) Tap-on units on request
2) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents > 800 A
at a frequency of 60 Hz.
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4.3.2 LDA.4.. trunking units (4-pole, aluminium)
LDA142. LDA242. LDA342. LDA441. LDA442. LDA541. LDA542. System-specific data
PEN=L PEN=L PEN=L PEN=½L PEN=L PEN=½L PEN=L
Rated current Ie1)
IP34 Ie A 1100 1250 1600 2000 2000 2500 2500 Horizontal/
edgewise 2) IP54 Ie A 900 1000 1200 1500 1500 1800 1800
IP34 Ie A 950 1100 1250 1700 1700 2100 2100 Vertical
IP54 Ie A 900 1000 1200 1500 1500 1800 1800
Horizontal/flat IP31/IP54 Ie A 700 750 1000 1200 1200 1700 1700
Impedance
Resistance R20 mΩ/m 0.061 0.047 0.047 0.029 0.031 0.023 0.024
Reactance X20 mΩ/m 0.052 0.043 0.043 0.03 0.031 0.023 0.030
of the conducting paths at
50 Hz and + 20 °C busbar
temperature Impedance Z20 mΩ/m 0.079 0.064 0.064 0.041 0.043 0.033 0.038
Resistance R1 mΩ/m 0.072 0.054 0.057 0.035 0.036 0.027 0.028
Reactance X1 mΩ/m 0.051 0.043 0.043 0.028 0.031 0.023 0.029
of the conducting paths at
50 Hz and final heating of
busbars Impedance Z1 mΩ/m 0.088 0.069 0.072 0.044 0.047 0.036 0.041
Resistance RF mΩ/m 0.144 0.106 0.106 0.085 0.083 0.075 0.055
Reactance XF mΩ/m 0.167 0.178 0.178 0.113 0.117 0.109 0.115
of the conducting paths for
4-pole systems under fault
conditions acc. to
EN 60439-2 Impedance ZF mΩ/m 0.218 0.207 0.207 0.147 0.144 0.132 0.128
Zero impedance
R
0 mΩ/m 0.282 0.217 0.217 0.168 0.171 0.180 0.120
X
0 mΩ/m 0.233 0.200 0.200 0.178 0.175 0.154 0.154
for 4-pole systems acc. to
DIN EN 60909-0/ VDE 0102
Z
0 mΩ/m 0.367 0.295 0.295 0.249 0.244 0.237 0.195
Short-circuit rating
rms value
t = 0.1 s
Icw kA 55 70 80 110 110 125 125 Rated short-time withstand
current
rms value
t = 1 s
Icw kA 40 55 58 80 80 110 110
Rated impulse withstand
current
Peak value Ipk kA 121 154 176 242 242 275 275
Conductor material Aluminium
No. of busbars 4 4 4 7 8 7 8
Conductor cross section L1, L2, L3 A mm2 530 706 706 1060 1060 1412 1412
PEN A mm2 530 706 706 530 1060 706 1412
Fire load
Trunking unit without tap-off
point
KWh/m 7.08 7.09 7.09 10.87 11.99 10.87 11.99
per tap-off point KWh 8.32 8.32 8.32 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical
load
m 6 6 6 5 5 5 5
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
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LDA641. LDA642. LDA741. LDA742. LDA841. LDA842. System-specific data
PEN=½L PEN=L PEN=½L PEN=L PEN=½L PEN=L
Rated current Ie1)
IP34 Ie A 3000 3000 3700 3700 4000 4000 Horizontal/
edgewise 2) IP54 Ie A 2000 2000 2400 2400 2700 2700
IP34 Ie A 2300 2300 2800 2800 3400 3400 Vertical
IP54 Ie A 2000 2000 2400 2400 2700 2700
Horizontal/flat IP31/IP54 Ie A 1800 1800 2200 2200 2350 2350
Impedance
Resistance R2
0
mΩ/m 0.023 0.024 0.017 0.016 0.015 0.013
Reactance X20 mΩ/m 0.023 0.029 0.019 0.022 0.017 0.019
of the conducting paths at 50 Hz
and + 20 °C busbar temperature
Impedance Z20 mΩ/m 0.033 0.037 0.026 0.027 0.023 0.023
Resistance R1 mΩ/m 0.030 0.029 0.021 0.020 0.018 0.016
Reactance X1 mΩ/m 0.024 0.029 0.019 0.022 0.017 0.019
of the conducting paths at 50 Hz
and final heating of busbars
Impedance Z1 mΩ/m 0.038 0.041 0.029 0.030 0.025 0.025
Resistance RF mΩ/m 0.075 0.056 0.055 0.041 0.049 0.038
Reactance XF mΩ/m 0.109 0.119 0.083 0.093 0.086 0.080
of the conducting paths for 4-pole
systems under fault conditions
acc. to EN 60439-2 Impedance ZF mΩ/m 0.132 0.131 0.099 0.101 0.099 0.088
Zero impedance
R
0 mΩ/m 0.180 0.120 0.126 0.090 0.110 0.075
X
0 mΩ/m 0.154 0.153 0.097 0.119 0.086 0.087
for 4-pole systems acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.237 0.194 0.159 0.149 0.140 0.115
Short-circuit rating
rms value
t = 0.1 s
Icw kA 130 130 130 130 130 130 Rated short-time withstand
current
rms value
t = 1 s
Icw kA 116 116 116 116 116 116
Rated impulse withstand current Peak value Ipk kA 286 286 286 286 286 286
Conductor material Aluminium
No. of busbars 7 8 7 8 7 8
Conductor cross section L1, L2, L3 A mm2 1412 1412 2044 2044 2464 2464
PEN A mm2 706 1412 1022 2044 1232 2464
Fire load
Trunking unit without tap-off point KWh/m 10.87 11.99 10.87 11.99 10.87 11.99
per tap-off point KWh 12.04 12.96 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical load m 5 5 5 5 5 5
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 133
4.3.3 LDA.6.. trunking units (5-pole, aluminium)
LDA162. LDA262. LDA362. LDA461. LDA462. LDA561. LDA562.System-specific data
N=L N=L N=L N=½L N=L N=½L N=L
Rated current Ie1)
IP34 Ie A 1100 1250 1600 2000 2000 2500 2500 Horizontal/
edgewise 2) IP54 Ie A 900 1000 1200 1500 1500 1800 1800
IP34 Ie A 950 1100 1250 1700 1700 2100 2100 Vertical
IP54 Ie A 900 1000 1200 1500 1500 1800 1800
Horizontal/flat IP31/IP54 Ie A 700 750 1000 1200 1200 1700 1700
Impedance
Resistance R20 mΩ/m 0.061 0.048 0.048 0.030 0.030 0.023 0.025
Reactance X20 mΩ/m 0.052 0.043 0.043 0.031 0.031 0.024 0.031
of the conducting paths at 50 Hz and
+ 20 °C busbar temperature
Impedance Z20 mΩ/m 0.079 0.064 0.064 0.043 0.043 0.033 0.040
Resistance R1 mΩ/m 0.072 0.054 0.059 0.036 0.036 0.028 0.029
Reactance X1 mΩ/m 0.051 0.043 0.042 0.031 0.031 0.024 0.031
of the conducting paths at 50 Hz and final
heating of busbars
Impedance Z1 mΩ/m 0.088 0.069 0.072 0.047 0.047 0.037 0.042
Resistance RF mΩ/m 0.162 0.108 0.108 0.109 0.109 0.092 0.084
Reactance XF mΩ/m 0.231 0.201 0.201 0.126 0.128 0.134 0.131
of the conducting paths for 5-pole
systems (PE) under fault conditions
acc. to EN 60439-2
Impedance ZF mΩ/m 0.283 0.228 0.228 0.168 0.168 0.163 0.156
Resistance RF mΩ/m 0.147 0.108 0.108 0.112 0.067 0.076 0.056
Reactance XF mΩ/m 0.197 0.173 0.173 0.108 0.109 0.106 0.114
of the conducting paths for
5-pole systems (N) under fault
conditions acc. to EN 60439-2
Impedance ZF mΩ/m 0.246 0.204 0.204 0.155 0.128 0.130 0.127
Zero impedance
R
0 mΩ/m 0.310 0.240 0.240 0.250 0.250 0.217 0.213
X
0 mΩ/m 0.415 0.200 0.200 0.235 0.235 0.202 0.265
for 5-pole systems (PE) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.518 0.295 0.295 0.343 0.343 0.297 0.340
R
0 mΩ/m 0.293 0.231 0.231 0.267 0.146 0.181 0.121
X
0 mΩ/m 0.260 0.219 0.219 0.144 0.144 0.128 0.167
for 5-pole systems (N) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.392 0.319 0.319 0.303 0.205 0.221 0.206
Short-circuit rating
rms value t = 0.1 s Icw kA 55 70 80 110 110 125 125 Rated short-time withstand current
rms value t = 1 s Icw kA 40 55 58 80 80 110 110
Rated impulse withstand current Peak value Ipk kA 121 154 176 242 242 275 275
rms value t = 0.1 s Icw kA 33 42 48 66 66 75 75 Rated short-time withstand current
of the 5th conductor rms value t = 1 s Icw kA 24 33 35 48 48 66 66
Conductor material Aluminium
No. of busbars 5 5 5 8 9 8 9
Conductor cross section L1, L2, L3 A mm2 530 706 706 1060 1060 1412 1412
N A mm
2 530 706 706 530 1060 6.73 1412
PE A mm2 530 706 706 530 530 706 706
Fire load
Trunking unit without tap-off point KWh/m 7.28 7.29 7.29 10.87 11.99 10.87 11.99
per tap-off point KWh 8.32 8.32 8.32 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical load m 6 6 6 5 5 5 5
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
134 Planning Manual, 09/2011, A5E01541101-02
LDA661. LDA662. LDA761. LDA762. LDA861. LDA862. System-specific data
N=½L N=L N=½L N=L N=½L N=L
Rated current Ie1)
IP34 Ie A 3000 3000 3700 3700 4000 4000 Horizontal/edgewise 2)
IP54 Ie A 2000 2000 2400 2400 2700 2700
IP34 Ie A 2300 2300 2800 2800 3400 3400 Vertical
IP54 Ie A 2000 2000 2400 2400 2700 2700
Horizontal/flat IP31/IP54 Ie A 1800 1800 2200 2200 2350 2350
Impedance
Resistance R20 mΩ/m 0.023 0.023 0.017 0.018 0.014 0.015
Reactance X20 mΩ/m 0.024 0.029 0.019 0.025 0.022 0.021
of the conducting paths at 50 Hz and
+ 20 °C busbar temperature
Impedance Z20 mΩ/m 0.033 0.037 0.026 0.030 0.026 0.026
Resistance R1 mΩ/m 0.029 0.030 0.020 0.021 0.017 0.018
Reactance X1 mΩ/m 0.024 0.031 0.020 0.025 0.021 0.021
of the conducting paths at 50 Hz and final
heating of busbars
Impedance Z1 mΩ/m 0.037 0.043 0.028 0.033 0.027 0.027
Resistance RF mΩ/m 0.092 0.084 0.068 0.065 0.055 0.056
Reactance XF mΩ/m 0.134 0.133 0.110 0.114 0.102 0.105
of the conducting paths for 5-pole
systems (PE) under fault conditions acc.
to EN 60439-2
Impedance ZF mΩ/m 0.163 0.157 0.129 0.131 0.116 0.119
Resistance RF mΩ/m 0.076 0.057 0.53 0.042 0.049 0.037
Reactance XF mΩ/m 0.106 0.113 0.080 0.091 0.084 0.086
of the conducting paths
for 5-pole systems (N) under fault
conditions acc. to EN 60439-2
Impedance ZF mΩ/m 0.130 0.127 0.096 0.100 0.097 0.094
Zero impedance
R
0 mΩ/m 0.217 0.212 0.163 0.166 0.145 0.146
X
0 mΩ/m 0.202 0.263 0.175 0.220 0.196 0.196
for 5-pole systems (PE) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.297 0.338 0.240 0.275 0.243 0.244
R
0 mΩ/m 0.181 0.122 0.130 0.089 0.115 0.079
X
0 mΩ/m 0.128 0.155 0.102 0.093 0.095 0.100
for 5-pole
systems (N) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.221 0.198 0.165 0.129 0.149 0.127
Short-circuit rating
rms value t = 0.1 s Icw kA 130 130 130 130 130 130 Rated short-time withstand current
rms value t = 1 s Icw kA 116 116 116 116 116 116
Rated impulse withstand current Peak value Ipk kA 286 286 286 286 286 286
rms value t = 0.1 s Icw kA 78 78 78 78 78 78 Rated short-time withstand current of the
5th conductor rms value t = 1 s Icw kA 70 70 70 70 70 70
Conductor material Aluminium
No. of busbars 8 9 8 9 8 9
Conductor cross section L1, L2, L3 A mm2 1412 1412 2044 2044 2464 2464
N A mm
2 706 1412 1022 2044 1232 2464
PE A mm2 706 706 1022 1022 1232 1232
Fire load
Trunking unit without tap-off point KWh/m 10.87 11.99 10.87 11.99 10.87 11.99
per tap-off point KWh 12.04 12.96 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical load m 5 5 5 5 5 5
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m