GerätehandbuchManual
Industrial Controls
Load Feeders
SIRIUS - SIRIUS 3RA Load Feeders
Edition
siemens.com
09/2016
SIRIUS - SIRIUS 3RA load feeders
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Industrial Controls
Load feeders
SIRIUS - SIRIUS 3RA load feeders
Manual
09/2016
A5E03656507520A/RS
-AB/003
Introduction
1
Standards
2
Product description
3
Product combinations
4
Functions
5
Configuration
6
Mounting
7
Connection
8
Operation
9
Accessories
10
Technical data
11
Circuit diagrams
12
Types of coordination
A
References
B
Dimension drawings
(dimensions in mm)
C
Siemens AG
Division Digital Factory
Postf
ach 48 48
90026 NÜRNBERG
GERMANY
3ZX1012-0RA21-5AC1
Ⓟ
09/2016 Subject to change
Copyright © Siemens AG 2011.
All rights reserved
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
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
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.
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Manual, 09/2016, A5E03656507520A/RS-AB/003 5
Table of contents
1 Introduction ............................................................................................................................................. 7
1.1 Responsibility of the user for system configuration and functionality ....................................... 7
1.2 Purpose of the manual .............................................................................................................. 7
1.3 Required basic knowledge ........................................................................................................ 8
1.4 Scope of the manual ................................................................................................................. 8
1.5 Siemens Industry Online Support ............................................................................................. 9
1.6 Further documentation ............................................................................................................ 10
1.7 Siemens Industry Online Support app .................................................................................... 11
1.8 Recycling and disposal ........................................................................................................... 11
1.9 Technical Assistance .............................................................................................................. 12
2 Standards ............................................................................................................................................. 13
3 Product description ............................................................................................................................... 15
3.1 Overview ................................................................................................................................. 15
3.2 Device versions ....................................................................................................................... 15
3.2.1 Pre-assembled complete devices ........................................................................................... 18
3.2.2 Self-assembled load feeders .................................................................................................. 19
3.3 Applications ............................................................................................................................. 22
3.4 Application environment.......................................................................................................... 22
4 Product combinations ............................................................................................................................ 23
5 Functions .............................................................................................................................................. 25
6 Configuration ........................................................................................................................................ 27
6.1 SIRIUS system configurator ................................................................................................... 27
6.2 Use of 3RA2 load feeders with highly energy-efficient motors (IE3) ...................................... 28
6.2.1 General information on the startup characteristics of highly energy-efficient motors
(IE3) ........................................................................................................................................ 28
6.2.1.1 Short-circuit detection ............................................................................................................. 28
6.2.1.2 Making and breaking capacity of motor starter protectors ...................................................... 28
6.2.1.3 Rated motor current/setting scale ........................................................................................... 29
6.2.2 Optimization of 3RV2 motor starter protectors for IE3 motors ............................................... 29
6.2.3 Technical modifications/restrictions of 3RV2 motor starter protectors ................................... 31
7 Mounting ............................................................................................................................................... 33
7.1 Installation guidelines.............................................................................................................. 33
7.1.1 Minimum clearances to grounded or live parts (400 V / 500 V / 690 V AC) ........................... 33
7.1.2 Mounting variants under different conditions and frequency of use ....................................... 36
7.1.3 Permissible assembly types and derating .............................................................................. 41
Table of contents
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7.2 Mounting and disassembling load feeders ............................................................................ 47
7.2.1 Overview ................................................................................................................................ 47
7.2.2 Load feeder with screw-type connection system ................................................................... 48
7.2.3 Load feeder with spring-loaded connection system ............................................................... 51
7.2.4 Load feeder with hybrid connection ....................................................................................... 61
7.3 Assembly and disassembly with different mounting systems ................................................ 66
7.3.1 On DIN rails without DIN rail adapter ..................................................................................... 67
7.3.2 On DIN rail with DIN rail adapter ............................................................................................ 69
7.3.2.1 Mounting direct-on-line starters and reversing starters on DIN rail adapters (sizes S00
and S0) ................................................................................................................................... 74
7.3.2.2 Mounting direct-on-line starters and reversing starters on DIN rail adapters (size S2) ......... 77
7.3.2.3 Mounting direct-on-line starters and reversing starters on DIN rail adapters (size S3) ......... 83
7.3.3 On busbar system .................................................................................................................. 90
7.3.4 Mounting on base plate ........................................................................................................ 113
7.3.4.1 Mounting on base plate without DIN rail adapter ................................................................. 113
7.3.4.2 Mounting on base plate with DIN rail adapter ...................................................................... 116
8 Connection .......................................................................................................................................... 121
9 Operation ............................................................................................................................................. 123
10 Accessories ......................................................................................................................................... 125
10.1 Overview .............................................................................................................................. 125
10.2 Accessories for constructing contactor assemblies for reversing and star-delta (wye-
delta) start ............................................................................................................................ 126
10.3 Link modules ........................................................................................................................ 126
10.4 Accessories for DIN rail mounting........................................................................................ 129
10.5 Accessories for busbar mounting......................................................................................... 131
11 Technical data ..................................................................................................................................... 133
11.1 Technical data in Siemens Industry Online Support ............................................................ 133
11.2 Overview tables.................................................................................................................... 133
12 Circuit diagrams ................................................................................................................................... 135
12.1 CAx data .............................................................................................................................. 135
A Types of coordination ........................................................................................................................... 137
B References .......................................................................................................................................... 139
B.1 References ........................................................................................................................... 139
B.2 Manuals - SIRIUS Modular System ..................................................................................... 140
B.3 More information .................................................................................................................. 142
C Dimension drawings (dimensions in mm) ............................................................................................. 143
C.1 CAx data .............................................................................................................................. 143
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail ................................................... 144
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems.......................... 158
Index ................................................................................................................................................... 167
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Introduction
1
1.1
Responsibility of the user for system configuration and functionality
Fuseless load feeders are device combinations comprising a 3RV2 motor starter protector
for overload and short-circuit protection and a 3RT2 contactor for normal switching.
The SIRIUS portfolio features two different configuration options for fuseless load feeders:
● 3RA2 tested pre-assembled complete devices
● Tested combinations of individual devices
Siemens AG, its regional offices, and associated companies (hereinafter referred to as
"Siemens") cannot guarantee all the properties of an overall installation or machine that has
not been designed by Siemens.
Nor can Siemens assume liability for recommendations that appear or are implied in the
following description. No new guarantee, warranty, or liability claims beyond the scope of the
Siemens general terms of supply are to be derived or inferred from the following description.
Note
When designing a system, comply with all valid national installation specifications and
standards.
1.2
Purpose of the manual
This manual describes the 3RA21/3RA22 fuseless load feeders and provides the following
information:
● Information about the different mounting variants of the fuseless load feeders.
● Information on necessary hardware components.
● Information on installing, connecting and operating the fuseless load feeders.
● Technical information such as dimension drawings and unit wiring diagrams.
The information in this manual enables you to configure and commission the fuseless load
feeders.
Introduction
1.3 Required basic knowledge
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1.3
Required basic knowledge
To understand these operating instructions you should have a general knowledge of
automation engineering and low-voltage switchgear.
1.4
Scope of the manual
The manual is valid for these fuseless load feeders. It contains a description of the devices
that is valid at the time of publication.
Introduction
1.5 Siemens Industry Online Support
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Manual, 09/2016, A5E03656507520A/RS-AB/003 9
1.5
Siemens Industry Online Support
Information and Service
In Siemens Industry Online Support, you can obtain up-to-date information from our global
support database quickly and simply. To accompany our products and systems, we offer a
wealth of information and services that provide support in every phase of the lifecycle of your
machine or plant – from planning and implementation, through commissioning, up to
maintenance and modernization:
● Product support
● Application examples
● Services
● Forum
● mySupport
Link:
Siemens Industry Online Support (https://support.industry.siemens.com/cs/ww/en)
Product support
You will find here all the information and comprehensive know-how covering all aspects of
your product:
●
FAQs
Our answers to frequently asked questions.
●
Manuals/operating instructions
Read online or download, available as PDF or individually configurable.
●
Certificates
Clearly sorted according to approving authority, type and country.
●
Characteristic curves
For support in planning and configuring your system.
●
Product announcements
The latest information and news concerning our products.
●
Downloads
You can find here updates, service packs, HSPs and much more for your product.
●
Application examples
Function blocks, background and system descriptions, performance statements,
demonstration systems, and application examples, clearly explained and represented.
●
Technical data
Technical product data for support in planning and implementing your project.
Link:
Product support (https://support.industry.siemens.com/cs/ww/en/ps)
Introduction
1.6 Further documentation
SIRIUS - SIRIUS 3RA load feeders
10 Manual, 09/2016, A5E03656507520A/RS-AB/003
mySupport
With "mySupport", your personal workspace, you get the very best out of your Industry
Online Support. Everything to enable you to find the right information every time.
The following functions are now available:
●
Personal messages
Your personal mailbox for exchanging information and managing your contacts
●
Inquiries
Use our online form for specific solution suggestions, or send your technical inquiry
directly to a specialist in Technical Support
●
Notifications
Make sure you always have the latest information - individually tailored to your needs
●
Filters
Simple management and re-use of your filter settings from Product Support and the
Technical Forum
●
Favorites / Tags
Create your own knowledge database by assigning "Favorites" and "Tags" to documents
– simply and efficiently
●
Entries last viewed
Clear presentation of your last viewed entries
●
Documentation
Configure your individual documentation from different manuals – quickly and without
complications
●
Personal data
Change personal data and contact information here
●
CAx data
Simple access to thousands of items of CAx data such as 3D models, 2D dimension
drawings, EPLAN macros and much more
1.6
Further documentation
To install and connect the fuseless load feeders, you require the operating instructions of the
load feeders used.
You can find a list of operating instructions and an overview of the manuals pertaining to the
SIRIUS modular system in the Appendix "References (Page 139)".
Introduction
1.7 Siemens Industry Online Support app
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1.7
Siemens Industry Online Support app
Siemens Industry Online Support app
You can use the Siemens Industry Online Support app to access all the device-specific
information available on the Siemens Industry Online Support portal for a particular article
number, including operating instructions, manuals, datasheets, FAQs etc.
The Siemens Industry Online Support app is available for iOS, Android or Windows Phone
devices. You can download the app from the following links:
Link for Android
Link for iOS
Link for Windows Phone
1.8
Recycling and disposal
These devices can be recycled thanks to their low pollutant content. For environmentally-
friendly recycling and disposal of your electronic waste, please contact a company certified
for the disposal of electronic waste.
Introduction
1.9 Technical Assistance
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1.9
Technical Assistance
Up-to-the-minute information
You can obtain further assistance by calling the following numbers:
Technical Assistance:
Telephone: +49 (911) 895-5900 (8 a.m. to 5 p.m. CET)
Fax: +49 (911) 895-5907
or on the Internet at:
E-mail: (mailto:technical-assistance@siemens.com)
Internet: (http://www.siemens.com/sirius/technical-assistance)
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Manual, 09/2016, A5E03656507520A/RS-AB/003 13
Standards
2
Fuseless load feeders are manufactured and tested in accordance with IEC 60947 – Part 1
and Part 2.
Types of coordination
Types of coordination are important selection criteria for fuseless load feeders. They are
defined in the appendix, under "Types of coordination (Page 137)".
Approvals/Test reports
Extensive approvals and test certificates are available for 3RA2 pre-assembled complete
devices. If you assemble the load feeders yourself, all approvals and test certificates of the
individual devices and the certificates for type-tested combinations apply.
Reference
The standards from Catalog IC 10 "SIRIUS Industrial Controls" in the appendix always apply.
You will find extracts from the most important standards relating to the devices from the
SIRIUS modular system on the Internet
(http://www.siemens.com/automation/service&support) ("SIRIUS - System Overview", Article
Number: 3ZX1012-0RA01-5AC1).
Standards
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SIRIUS - SIRIUS 3RA load feeders
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Product description
3
3.1
Overview
Fuseless load feeders
Fuseless load feeders are device combinations comprising a 3RV motor starter protector for
overload and short-circuit protection and a 3RT contactor for normal switching. The SIRIUS
portfolio features two different configuration options for fuseless load feeders.
● 3RA2 tested pre-assembled complete devices (sizes S00 to S2 only)
● Tested combinations of individual devices
3.2
Device versions
The modular standard components in the SIRIUS modular system are ideally matched and
support the simple configuration of fuseless load feeders. The load feeders are also
available as 3RA2 complete devices.
Both options are characterized by the following features.
● Type of coordination 1 or 2
● Rated control supply voltage
● Mounting on busbar or DIN rail
● Screw or spring-loaded connection
A detailed overview of the fuseless load feeders product range appears below.
Product description
3.2 Device versions
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Types of coordination
Fuseless load feeders up to 38 A (discrete configuration of individual devices with
connecting cables) and 32 A (pre-assembled complete devices or configuration with link
module) can be assembled in sizes S00 and S0.
An assembly up to 80 A (discrete configuration of individual devices with connecting cables)
and 65 A (as pre-assembled complete devices, or configuration with link module) is possible
in size S2.
An assembly up to 100 A (discrete configuration of individual devices with connecting
cables) is possible in size S3.
The table below lists the maximum power of the three-phase motor for pre-assembled
3RA2 complete devices based on the type of coordination at a voltage of 400 V AC.
Table 3- 1 Motor starter protector sizes
Size
Type of coordination
Power of three-phase motor
S00
1
0.06 to 7.5 kW
2 0.06 to 1.5 kW
S0
1
7.5 to 15 kW
2
1.5 to 15 kW
S2
1
15 kW … 30 / 37 kW (max. 65 A)
2
15 kW … 30 / 37 kW (max. 65 A)
Reference
More information ...
Can be found in...
About approved load feeders in the configuration manual entitled "Configuring SIRIUS Innovations
- Selection data for load feeders in fuseless and fused designs"
(Article Number: 3ZX1012-0RA21-1AC0)
Auxiliary contacts
The following auxiliary contacts are integrated into fuseless load feeders dependent upon
size.
Table 3- 2 Integrated auxiliary contacts
Size
Direct feeder
Reversing feeder
S00
1 NO contact is integrated in the contactor.
1 NC contact is integrated in the contactor.
S0
1 NO contact and 1 NC contact are integrated
in the contactor. The user can decide how the
NC contact is assigned.
1 NO contact and 1 NC contact are
integrated in the contactor. The NC contact
is assigned to the interlock.
S2
S3
Product description
3.2 Device versions
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Assembly/Installation
The devices are prepared for DIN rail mounting, for mounting on a 60 mm busbar or for
mounting on a base plate.
Table 3- 3 Mounting options
Starter combination
Direct-on-line starter
Reversing starter
Size
S00
S0
S2
S3
S00
S0
S2
S3
Mounting on a standard rail
Snap-on mounting
without adapter
✓1) ✓1) ✓2) — ✓1) — ✓2) —
With DIN rail adapter ✓3) ✓3) ✓2) ✓2) ✓3) ✓3) ✓2) ✓2)
Mounting on 8US busbar
With 8US busbar
adapter
✓ ✓ ✓ — ✓ ✓ ✓ —
Mounting on base plate
Direct
✓
✓
✓
—
✓
✓
✓
—
With DIN rail adapter
✓
✓
✓
✓
✓
✓
✓
✓
1)
Mounting on 1 DIN rail
2)
Mounting on 2 DIN rails
3) Mounting on 1 or 2 DIN rails
Product description
3.2 Device versions
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3.2.1
Pre-assembled complete devices
Pre-assembled complete devices
3RA2 fuseless load feeders are pre-assembled complete devices; they are delivered ready-
wired and with all mechanical connections established. The devices are available in
sizes S00, S0 and S2 for direct-on-line start. Pre-assembled complete devices in size S00
and S0 are available for reversing start. The fuseless load feeders can be ordered with or
without pre-assembled busbar adapters for mounting on a DIN rail or busbar.
Connection systems
3RA2 fuseless load feeders are available with the following connection system options.
Table 3- 4 Connection systems available for 3RA2 fuseless load feeders
Connection system
3RA2 pre-assembled complete devices
S00 / S0
S2
Screw terminals
✓
1) 2)
✓
Spring-loaded terminals
✓
---
Ring cable lug connection --- ---
1)
The link module for the S00 load feeder can also be used to mount an S00 contactor on an
S0 motor starter protector.
2)
The link module for the S0 load feeder can also be used to mount an S0 contactor on an
S00 motor starter protector.
Rated powers
3RA2 pre-assembled feeders are dimensioned for the following powers:
Powers
S00
S0
S2
Direct-on-line starter
≤ 7.5 kW (16 A)
15 kW (32 A)
30 / 37 kW (65 A)
Reversing starter
≤ 7.5 kW (16 A)
15 kW (32 A)
---
Control supply voltages of 3RA2 load feeders
3RA2 pre-assembled feeders are available for the following rated control supply voltages:
Rated control supply voltages
S00
S0
S2
230 V AC / 50/60 Hz
230 V AC / 50 Hz
230 V AC / 50 Hz
24 V DC
24 V DC
20 ... 33 V AC/DC
Product description
3.2 Device versions
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3.2.2
Self-assembled load feeders
Assembly of load feeders from individual devices
Self-assembly load feeders comprising individual devices are available as an alternative to
the 3RA2 complete device. In the case of a discrete configuration of individual devices
without a link module, the values of the basic devices apply. The following components can
be combined via the intermediary of a link module.
Combination
S00
S0
S2
S3
Motor starter protector and contactor
7.5 kW (16 A)
15 kW (32 A)
30 / 37 kW (65 A)
55 kW (100 A)
1)
Motor starter protector and soft starter 7.5 kW (16 A) 15 kW (32 A) 30 / 37 kW (65 A) 1) On request
Motor starter protector and solid-state
contactor
— 7.5 kW (16 A) — —
1) A DIN rail adapter shall be used for this combination
The modularity of the SIRIUS system means that the standard devices are perfectly matched
from both a mechanical and an electrical point of view. As a straightforward means of
assembling starter combinations, wiring kits are available for contactor assemblies for
reversing and star-delta (wye-delta) start for size S2 / S3 with screw terminals, and for
size S00 / S0 with various connection systems. Assembly kits are available for mounting
self-assembled load feeders on DIN rails or busbars.
Product description
3.2 Device versions
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Assembly of three-part combinations with link module between the motor starter protector and the
contactor
You are basically advised to refrain from setting up combinations of a motor starter protector,
a contactor and an overload relay or a monitoring relay as a completely assembled three-
part combination. If this should nevertheless be necessary, the following restrictions apply:
Motor starter protector + contactor + electronic overload relay / 3RR monitoring relay
(size S00 / S0)
Thermal restrictions
Mechanical restrictions
No restrictions
DIN rail adapter required
Motor starter protector + contactor + electronic overload relay / 3RR monitoring relay
(size S2)
Thermal restrictions
Mechanical restrictions
• At an ambient temperature of Ta = 40 °C
(no restrictions)
• At an ambient temperature of Ta = 60 °C
(clearance between the load feeders: ≥ 10 mm)
No restrictions
Motor starter protector + contactor + solid-state overload relay (size S3)
Thermal restrictions
Mechanical restrictions
On request
On request
Motor starter protector + contactor + thermal overload relay (size S00 / S0)
Thermal restrictions:
Mechanical restrictions
Reduce permissible ambient temperature by 20 K DIN rail adapter required
No side-by-side mounting
(≥ 10 mm clearance for vertical installation, > 20 mm for
horizontal installation)
Current derating to 87 % of In
Motor starter protector + contactor + thermal overload relay (size S2 / S3)
Note
A three
-part combination consisting of a motor starter protector, a contactor and a thermal
overload relay is not permissible for sizes S2 and
S3.
Product description
3.2 Device versions
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Reference
More information ...
Can be found in the chapter titled ...
About assembly kits for fuseless load feeders
Accessories (Page 125)
Connection systems
Self-assembled fuseless load feeders are available with the following connection system
options.
Table 3- 5 Connection systems available for self-assembled fuseless load feeders
Connection system
Self-assembled fuseless load feeders
S00 / S0
S2
S3
Screw terminals
✓
✓
✓
Spring-loaded connection
✓
2)
2)
Ring cable lug connection
✓
1)
—
—
1)
These versions can be snapped onto a DIN rail. Mounting on a busbar adapter is not possible.
2) In the case of size S2 and S3 devices, spring-loaded terminals are only possible in the auxiliary circuit.
Rated powers
The pre-assembled feeders are dimensioned for the following powers:
Assembly
S00
S0
S2
S3
Direct-on-line starter
with link module 7.5 kW (14 A) at
Ta 60 °C 1)
7.5 kW (16 A) at
Ta 40 °C
1)
15 kW (29 A) at
Ta 60 °C 1)
15 kW (32 A) at
Ta 40 °C
1)
37 kW (65 A) at
Ta 60 °C 1)
45 kW (87 A) at
Ta 60 °C 1)
55 kW (100 A) at
Ta 40 °C
1)
Separately wired
7.5 kW (16 A)
18.5 kW (38 A)
37 kW (80 A)
55 kW (100 A)
Reversing starter
with link module 7.5 kW (14 A) at
Ta 60 °C 1)
7.5 kW (16 A) at
T
a
40 °C
1)
15 kW (29 A) at
Ta 60 °C 1)
15 kW (32 A) at
T
a
40 °C
1)
37 kW (65 A) at
Ta 60 °C 1)
45 kW (87 A) at
Ta 60 °C 1)
55 kW (100 A) at
T
a
40 °C
1)
Separately wired
7.5 kW (16 A)
18.5 kW (38 A)
37 kW (80 A)
55 kW (100 A)
1) Observe the installation guidelines (Page 36) when installing a load feeder with a link
module.
Control supply voltages of load feeders
The contactors can be ordered with different rated control supply voltages as appropriate for
the application area of the fuseless load feeders.
Product description
3.3 Applications
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3.3
Applications
Fuseless load feeders can be used anywhere in industry where fuse, contactor, and
overload relay combinations were previously used. The increased functionality of the motor
starter protector (unlike a fuse combination, it can be used as an EMERGENCY OFF and as
a disconnector) means that a fuseless load feeder is capable of solving numerous
applications easily.
3.4
Application environment
3RA2 load feeders are climate-proof. They are designed for use in enclosed spaces in which
no severe operating conditions prevail (e.g. dust, caustic vapors, hazardous gases).
If they are to be installed in dusty or damp rooms, suitable enclosures must be provided.
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Product combinations
4
The SIRIUS modular system supports the assembly of load feeders for a whole variety of
requirements. The individual devices which can be combined are matched to one another
from both an electrical and a mechanical point of view.
The following fuseless device combinations have been tested according to IEC 60947-4-1:
Table 4- 1 Fuseless load feeders tested according to IEC 60947-4-1
Device combination
Motor starter protector
Contactor
1)
Motor starter protector Contactor Thermal or electronic overload
relay
1)
Motor starter protector
Contactor
SIMOCODE pro
1)
Motor starter protector
Contactor
SIRIUS 3RR monitoring relay
1)
Motor starter protector
Reversing contactor assembly
1)
Motor starter protector Contactor assembly for star-delta
(wye-delta) start
Thermal or electronic overload
relay
2)
Motor starter protector Contactor assembly for star-delta
(wye-delta) start
SIMOCODE pro2)
Motor starter protector 3RW30, 3RW40, 3RW44 soft starters
Motor starter protector
Solid-state contactor or solid-state reversing contactor
Motor starter protector
Solid-state contactor
SIRIUS 3RR monitoring relay
1)
Also with 3RA27 communication connection
2) Also with 3RA27 communication connection or 3RA28 logic module
The configuration manual contains detailed information about individual device
combinations. The configuration manual describes fuseless and fused load feeders for
various line voltages.
Reference
More information ...
Can be found ...
About the mechanical combinations of
individual devices
In the "References" appendix under "Manuals - SIRIUS
Modular System (Page 140)".
About approved load feeders in the configuration guide entitled "Configuring SIRIUS
Innovations - Selection data for load feeders in fuseless
and fused designs" (Article Number:
3ZX1012-0RA21-1AB0).
About matching link modules
In the chapter titled "Link modules (Page 126)".
Product combinations
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Functions
5
Pre-assembled load feeders
In the 3RA2 fuseless load feeder, the 3RV2 motor starter protector takes on the dual function
of overload protection and short-circuit protection. Upstream protective devices such as
melting fuses or limiters are superfluous, as the load feeder is capable of withstanding short
circuits up to 150 kA at 400 V.
The 3RT2 contactor is suitable for extremely complex switching tasks requiring maximum
endurance.
The trip class on all pre-assembled 3RA2 feeders is CLASS 10.
Self-assembled load feeders
Thanks to the flexible SIRIUS modular system, load feeders can be assembled for the most
diverse requirements.
These load feeders can be fuseless or fused. Load feeders for starting motors can be
assembled for the following startup types, for example:
● Direct-on-line start
● Reversing start
● Star-delta (wye-delta) start
● Soft start
● Configuration with solid-state switching devices for high switching frequencies
In the case of a configuration with overload relay, a tripping class up to CLASS 30 can be
set. In the case of a configuration with SIMOCODE, a tripping class up to CLASS 40 can be
set.
Reference
More information ...
Can be found ...
About the functions of motor starter protectors In the "References" appendix under "Manuals -
SIRIUS Modular System (Page 140)" in the "SIRIUS
- SIRIUS 3RV motor starter protectors" manual.
Functions
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Configuration
6
Application planning
You will find detailed information about configuration in the configuration manual. The
configuration manual describes fuseless and fused load feeders for various line voltages.
Reference
More information ...
Can be found ...
About applications involving contactors In the "References" appendix under "Manuals - SIRIUS
Modular System (Page 140)" in the "SIRIUS -
SIRIUS 3RT Contactors/Contactor Assemblies” manual.
About applications involving motor
starter protectors
In the "References" appendix under "Manuals - SIRIUS
Modular System (Page 140)" in the "SIRIUS - SIRIUS 3RV
motor starter protectors" manual.
About configuration in the configuration guide entitled "Configuring SIRIUS
Innovations - Selection data for load feeders in fuseless
and fused designs" (Article Number:
3ZX1012-0RA21-1AB0).
6.1
SIRIUS system configurator
Reference
To assist you with configuration, the "SIRIUS system configurator" is at your disposal on the
Internet. Here, you can gather together all necessary products before the actual
configuration process and you can realize complete projects virtually.
You can find the "SIRIUS system configurator" on the Internet
(http://www.siemens.com/sirius/configurators).
Configuration
6.2 Use of 3RA2 load feeders with highly energy-efficient motors (IE3)
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6.2
Use of 3RA2 load feeders with highly energy-efficient motors (IE3)
6.2.1
General information on the startup characteristics of highly energy-efficient
motors (IE3)
Motor starter protectors have been conceived to protect and switch motors. They assume
the task of line protection in the event of an overload or short-circuit.
To this end, motor starter protectors are equipped with sensors for overload and short-circuit
detection and possess an interruption point for switching motor and short-circuit currents.
Without technical adaptation to the new highly energy-efficient motors (IE3), the problems
described below can arise.
6.2.1.1
Short-circuit detection
In the event of unusually high currents in the electrical installation, short-circuit detection
serves to keep the thermal and dynamic load low and ensure safe shutdown. The response
threshold should lie above the currents that a starting motor causes. The dimensioning of a
system is influenced by the response value. The higher the response value, the higher the
chosen cable cross-sections to be protected must be. This increases costs in the system and
for the switching devices. This is why the response values have been adapted to the
previously typical motor starting currents.
The drawback of the new, more efficient motors (IE3) is that, on average, the locked rotor
and magnetization currents (inrush currents) arising at the moment of switching on are
considerably higher than in the case of the previous generations of motors. The spread of
locked rotor and inrush currents is very wide. Motors with high values can therefore cause
the motor starter protector's short-circuit detection to respond. This leads to unintentional
shutdown ("early tripping") during motor starting. Early tripping can occur whenever the
motor current lies in the top range of the motor starter protector's setting scale and a motor
with a high inrush current is used.
6.2.1.2
Making and breaking capacity of motor starter protectors
Making and breaking capacity tests are conducted in compliance with the standard under
three-phase AC loading with 10 to 8 times the rated current. In some cases, the locked rotor
and inrush currents of IE3 motors are clearly above these values. In isolated cases, current
spikes that arise during switching on can cause brief lifting of the contacts without triggering
a breaking operation by short-circuit detection.
Where the motor is switched on by a contactor, for example, the motor starter protector's
making/breaking capacity is irrelevant. In this case, the motor current is only carried. The
current that can be carried without any problems is normally higher than the switching
device's making/breaking capacity.
Configuration
6.2 Use of 3RA2 load feeders with highly energy-efficient motors (IE3)
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6.2.1.3
Rated motor current/setting scale
For motor protection, the motor's rated current must be set on the motor starter protector's
setting scale. The new IE3 motors generally have lower rated currents. This can lead to
situations in which a motor starter protector with a lower rated current has to be chosen for
the same motor rating. Thus, the short-circuit detection response value also drops and can
lead to tripping during motor starting.
See also
Short-circuit detection (Page 28)
6.2.2
Optimization of 3RV2 motor starter protectors for IE3 motors
The motor starter protectors have been revised in relation to the higher locked rotor currents
and inrush currents as follows:
●Raising of the lower short-circuit detection response tolerances without changes to the
maximum values.
→ No change to system dimensioning
●Increase in the making / breaking capacity.
→ Far-reaching avoidance of restrictions due to increased motor starting currents and
inrush currents, see the chapter "Technical modifications/restrictions of 3RV2 motor
starter protectors (Page 31)".
●Adaptation of some motor starter protector versions' overload releases and setting
scales.
→ Avoidance of using smaller motor starter protectors due to lower rated motor currents
(see chapter "Technical modifications/restrictions of 3RV2 motor starter protectors
(Page 31)")
In the case of motors with very high locked rotor and inrush currents, problems can arise
despite adaptations, e.g. undesired tripping on starting. It is recommended that motor starter
protectors be selected such that the setting does not need to be made in the upper range of
the setting scale. This reduces power loss in the device (cost saving and reduced
temperature rise in the control cabinet) and increases the distance from the short-circuit
releases' response limits.
Configuration
6.2 Use of 3RA2 load feeders with highly energy-efficient motors (IE3)
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Selection example
In this example, two motor starter protectors are compared with each other.
Rated motor current: 15 A
Motor starter protector A: Setting scale 10 ... 16 A
Motor starter protector B: Setting scale 14 ... 20 A
Motor starter protector B (14 ... 20 A) is recommended since its power loss is lower and it
has a higher distance to the response limits.
The power loss of motor starter protector B is approximately 35 % lower than that of motor
starter protector A.
The response limits of the short-circuit release always refer to the maximum setting value:
●In the case of motor starter protector A, the response value of the short-circuit release is
208 A (13 × 16 A).
At the setting value of 15 A, the distance to the response limit of the short-circuit release
is 13.86 times the current setting (208 A / 15 A =13.86).
●In the case of motor starter protector B, the response value of the short-circuit release is
260 A (13 × 20 A). With a setting value of 15 A, the distance to the response limit of the
short-circuit release is 17.33 times the current setting (260 A / 15 A = 17.33).
In the present example, the distance to the response limit of 13.86 times the setting current
for motor starter protector A increases to 17.33 times the current setting for motor starter
protector B.
Configuration
6.2 Use of 3RA2 load feeders with highly energy-efficient motors (IE3)
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6.2.3
Technical modifications/restrictions of 3RV2 motor starter protectors
Restriction of the maximum starting current is necessary for one setting range each of sizes
S0, S2 and S3.
The reason for this lies in the corresponding variants' making and breaking capacities.
3RV2 motor starter protectors
3RV2.21-4E...
3RV2.3.-4R...
3RV2.4.-4M...
Setting range for overload release
27 to 32 A
70 to 80 A
80 ... 100 A
Reduced starting current ratio 8 times 9 times 7.8 times
Max. permissible starting current
32 A x 8 = 256 A
80 A x 9 = 720 A
100 A x 7.8 = 780 A
Starting current ratio:
Maximum permissible rated operational current [A]
3RV2.21-4E...
3RV2.3.-4R...
3RV2.4.-4M...
≤ 8 times
32.0
80.0
97.5 A
8.5 times 30.2 80.0 91.8 A
9 times
28.4
80.0
86.6 A
9.5 times
27.0
75.8
82.1 A
10 times
-
72.0
--
Note
For size S0, the setting range variants "
-4P" (30 to 36 A) and "-4F" (34 to 40 A) are not
suitable for use with IE3 m
otors.
We recommend the use of size S2 for these current ranges.
Extended setting ranges of overload releases (sizes S00 and S0)
For the following versions of the motor starter protectors (sizes S00 and S0), the setting
ranges of the overload releases have been extended and adapted to the lower rated motor
current of IE3 motors:
Size
Article number
Setting range for overload release
Previously
Setting range for overload release
New
S00
3RV2.11-4A…
11 to 16 A
10 to 16 A
S0
3RV2.21-4A…
11 to 16 A
10 to 16 A
3RV2.21-4B…
14 to 20 A
13 to 20 A
3RV2.21-4C…
17 to 22 A
16 to 22 A
3RV2.21-4D…
20 to 25 A
18 to 25 A
Configuration
6.2 Use of 3RA2 load feeders with highly energy-efficient motors (IE3)
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Mounting
7
7.1
Installation guidelines
7.1.1
Minimum clearances to grounded or live parts (400 V / 500 V / 690 V AC)
Maintain the following clearances when mounting the 3RA21 / 3RA22 assemblies:
Table 7- 1 Installation guidelines for 400 V / 500 V / 690 V AC (size S00 / S0)
Clearance from grounded or live parts as well as from molded-plastic cable ducts according to
IEC 60947-4
Motor starter protector Contactor Y [mm] X2 1) [mm] Z [mm]
Rated operating voltage 400 V
3RV2.1
3RT201
20
10
9
3RV2.2
3RT201
30
10
9
3RT2.2
30
10
9
Rated operating voltage 500 V
3RV201
3RV211
3RT201 20 10 9
3RV202
3RV212
3RT202 30 10 20
3RV202 + limiter (32 A)
3RV212 + limiter (32 A)
3RT202 30 10 9
Rated operating voltage 690 V
3RV2.1
3RT201
50
10
20
3RV2.1 / 3RV2.2 + limiter (32 A)
3RT201 / 3RT202
80
10
20
3RV2.1 / 3RV2.2 + limiter (50 A)
3RT202
50
10
20
Mounting
7.1 Installation guidelines
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Clearance from grounded or live parts as well as from molded-plastic cable ducts according to
IEC 60947-4
1)
Minimum clearance from contactor at the front. There is no minimum clearance requirement at the
front for the motor starter protector.
Note
Installation instructions for S0 motor starter protectors from 36 A
Minimum ca
ble length between motor starter protector and contactor: 150 mm.
Minimum clearance between motor starter protector and contactor: 100
mm.
Mounting
7.1 Installation guidelines
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 35
Table 7- 2 Installation guidelines for 400 V / 500 V / 690 V AC (size S2)
Clearance from grounded or live parts as well as from molded-plastic cable ducts according to
IEC 60947-4
Motor starter protector Contactor Y1 [mm] Y2 [mm] X1 [mm] X2 [mm] Z [mm]
Rated operating voltage 400 V
3RV2.3 3RT203 50 10 --- 10 10
Rated operating voltage 500 V
3RV203
3RV213
3RT203 20 10 --- 10 9
3RV203 + limiter (80 A)
3RV213 + limiter (80 A)
3RT203 50 10 --- 10 10
Rated operating voltage 690 V
3RV2.32 + limiter (80 A) 3RT203 50 10 10 32 10
Mounting
7.1 Installation guidelines
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Table 7- 3 Installation guidelines for 400 V / 500 V / 690 V AC (size S3)
Clearance from grounded or live parts as well as from molded-plastic cable ducts according to IEC
60947-4
Motor starter protector
Contactor
Y1 [mm]
Y2 [mm]
X1 [mm]
X2 [mm]
Z [mm]
Rated operating voltage 400 V
3RV2.4
3RT204
On request
Rated operating voltage 500 V
3RV2.4
3RT204
On request
3RV2.4 + limiter (80 A)
3RT204
On request
Rated operating voltage 690 V
3RV2.42 + limiter (80 A)
3RT204
On request
7.1.2
Mounting variants under different conditions and frequency of use
The load feeders can be mounted horizontally or vertically.
Horizontal installation
Vertical installation
Mounting
7.1 Installation guidelines
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Manual, 09/2016, A5E03656507520A/RS-AB/003 37
The following table shows the installation guidelines for the fuseless load feeders.
Table 7- 4 Mounting variants - fuseless load feeders with link module
Combination
Setting range
Distance between feeders
Permissible installation: h = horizontal, v = vertical
Max. ambient temperature Ta
Use under increased vibration and shock
load 1)
Motor starter protector and contactor
A
mm h, v °C
Direct-on-line starter, screw terminal, DIN rail or base plate
S00 ≤ 14 0 h, v 60 Unlimited
> 14 … 16 10 h 60
0 h, v 40
S0 ≤ 29 0 h, v 60 Unlimited
> 29 … 32 10 h 60
0 h, v 40
S2 ≤ 65 0 h, v 60 Unlimited
S3 (with DIN rail adapter 3RA2942-1AA00
only)
≤ 87 0 h, v 60 On request
> 87 ... 100 0 h, v 40
Direct-on-line starter, screw terminal, busbar
S00 ≤ 14 0 h 40 Vibration and shock kit 8US1998-1CA10
required
10 h 60
10 v 40
> 14 … 16 10 h 60
10 h, v 40
S0 ≤ 29 0 h 40 Vibration and shock kit 8US1998-1CA10
required
10 h 60
10 v 40
> 29 … 32 10 h 60
10 h, v 40
S2 ≤ 65 10 h, v 60 Vibration and shock kit 8US1998-1DA10
required
≤ 65 0 h, v 40 Vibration and shock kit 8US1998-1DA10
required
Mounting
7.1 Installation guidelines
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Combination
Setting range
Distance between feeders
Permissible installation: h = horizontal, v = vertical
Max. ambient temperature Ta
Use under increased vibration and shock
load 1)
Motor starter protector and contactor
A
mm h, v °C
Reversing starter, screw terminal, DIN rail or base plate
S00 ≤ 14 0 h, v 60 Unlimited
> 14 … 16 10 h 60
0 h, v 40
S0 ≤ 29 0 h, v 60 DIN rail adapter required
(already included with 3RA22)
> 29 … 32 10 h 60
0 h, v 40
S2 ≤ 65 0 h, v 60 Unlimited
S3 (with DIN rail adapter 3RA2942-1AA00
only)
≤ 87 0 h, v 60 On request
> 87 ... 100 0 h, v 40
Reversing starter, screw terminal, busbar
S00 ≤ 14 0 h 60 Vibration and shock kit 8US1998-1CA10
required
0v 40
> 14 … 16 10 h 60
10 v 40
S0 ≤ 29 0 h 60 Vibration and shock kit 8US1998-1CA10
required
0v 40
> 29 … 32 10 h 60
10 v 40
S2 ≤ 65 10 h, v 60 Vibration and shock kit 8US1998-1DA10
required
≤ 65 0 h, v 40 Vibration and shock kit 8US1998-1DA10
required
Direct-on-line starter, spring-loaded connection, DIN rail or base plate
S00 ≤ 14 0 h, v 60 Unlimited
> 14 … 16 10 h 60
0 h, v 40
S0 ≤ 29 0 h, v 60 Unlimited
> 29 … 32 10 h 60
0 h, v 40
Mounting
7.1 Installation guidelines
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Manual, 09/2016, A5E03656507520A/RS-AB/003 39
Combination
Setting range
Distance between feeders
Permissible installation: h = horizontal, v = vertical
Max. ambient temperature Ta
Use under increased vibration and shock
load 1)
Motor starter protector and contactor
A
mm h, v °C
Direct-on-line starter, spring-loaded connection, busbar
S00 ≤ 14 0 h 40 Vibration and shock kit 8US1998-1CA10
required
10 h 60
10 v 40
> 14 … 16 10 h 60
10 v 40
S0 ≤ 29 0 h 40 Vibration and shock kit 8US1998-1CA10
required
10 h 60
10 v 40
> 29 … 32 10 h 60
10 v 40
Reversing starter, spring-loaded connection, DIN rail or base plate
S00 ≤ 14 0 h, v 60 Unlimited
> 14 … 16 10 h 60
0 h, v 40
S0 ≤ 29 0 h, v 60 DIN rail adapter required
(already included with 3RA22)
> 29 … 32 10 h 60
0 h, v 40
Reversing starter, spring-loaded connection, busbar
S00 ≤ 14 0 h 60 Vibration and shock kit 8US1998-1CA10
required
0v 40
> 14 … 16 10 h 60
10 v 40
S0 ≤ 29 0 h 60 Vibration and shock kit 8US1998-1CA10
required
0v 40
> 29 … 32 10 h 60
10 v 40
Mounting
7.1 Installation guidelines
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Combination
Setting range
Distance between feeders
Permissible installation: h = horizontal, v = vertical
Max. ambient temperature Ta
Use under increased vibration and shock
load 1)
Motor starter protector and contactor
A
mm h, v °C
Motor starter protector and soft starter, screw terminal, DIN rail or base plate
S00 16 2) 2) The feeder must be screwed tight to the
top of the motor starter protector with two
screws and fastened to the bottom of the
soft starter with a self-locking screw. Not
approved for railways, power plants, or
shipbuilding.
S0 32 2) 2) The feeder must be screwed tight to the
top of the motor starter protector with two
screws and fastened to the bottom of the
soft starter with a self-locking screw. Not
approved for railways, power plants, or
shipbuilding.
S2
(only with DIN rail
adapter 3RA2932-1CA00)
65 2) 2) 2) Unlimited
S3 (on base plate only) On request
Motor starter protector and soft starter, spring-loaded terminal, DIN rail or base plate
S00 16 2) 2) The feeder must be screwed tight to the
top of the motor starter protector with two
screws and fastened to the bottom of the
soft starter with a self-locking screw. Not
approved for railways, power plants, or
shipbuilding.
S0 32 2) 2) The feeder must be screwed tight to the
top of the motor starter protector with two
screws and fastened to the bottom of the
soft starter with a self-locking screw. Not
approved for railways, power plants, or
shipbuilding.
Motor starter protector and solid-state contactor, screw terminal, DIN rail or base plate
Direct-on-line starters (sizes S00 / S0) 16 2) 2) Unlimited Not approved for railways,
power plants, or shipbuilding.
Reversing starters (sizes S00 / S0) 7.4 2) 2) Unlimited Not approved for railways,
power plants, or shipbuilding.
1) Vibration and shock tests are carried out in accordance with SN 31205 as well as with the relevant standards for
railways, shipbuilding, and power plants.
2) Please consult Technical Assistance (http://www.siemens.com/sirius/technical-assistance).
Mounting
7.1 Installation guidelines
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 41
7.1.3
Permissible assembly types and derating
3RA2110 (size S00, screw terminals, DIN rail or base plate)
I
e, max
Assembly
Ambient
temperature
T
a
Horizontal
Vertical
≤ 14 A
60 ℃
> 14 A … 16 A
--- 60 ℃
> 14 A … 16 A
40 ℃
1) Maximum 6 load feeders
Mounting
7.1 Installation guidelines
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42 Manual, 09/2016, A5E03656507520A/RS-AB/003
3RA2110 + 8US1251-5D.1. (size S00, screw terminals, busbar)
I
e, max
Assembly
Ambient
temperature
T
a
Horizontal
Vertical
≤ 14 A
-- 60 ℃
40 ℃
> 14 A … 16 A
-- 60 ℃
40 ℃
1) Maximum 6 load feeders
Mounting
7.1 Installation guidelines
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Manual, 09/2016, A5E03656507520A/RS-AB/003 43
3RA2120 (size S0, screw terminals, DIN rail or base plate)
I
e, max
Assembly
Ambient
temperature
T
a
Horizontal
Vertical
≤ 29 A
60 ℃
> 29 A … 32 A
-- 60 ℃
> 29 A … 32 A
40 ℃
> 32 A
--
--
--
1) Maximum 6 load feeders
Mounting
7.1 Installation guidelines
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44 Manual, 09/2016, A5E03656507520A/RS-AB/003
3RA2120 + 8US1251-5..1. (size S0, screw terminals, busbar)
I
e, max
Assembly
Ambient
temperature
T
a
Horizontal
Vertical
≤ 29 A
-- 60 ℃
≤ 29 A
40 ℃
> 29 A … 32 A
-- 60 ℃
> 29 A … 32 A
40 ℃
> 32 A
--
--
--
1) Maximum 6 load feeders
Mounting
7.1 Installation guidelines
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Manual, 09/2016, A5E03656507520A/RS-AB/003 45
3RA2130-4... (size S2, screw terminals, DIN rail or base plate)
I
e, max
Assembly
Ambient
temperature
T
a
Horizontal
Vertical
≤ 65 A
60 ℃
> 65 A
--
--
1) Maximum 6 load feeders
3RA2130-4... + 8US1261-6MT10
(size S2, screw terminals, busbar)
I
e, max
Assembly
Ambient
temperature
T
a
Horizontal
Vertical
≤ 65 A
60 °C
≤ 65 A
40 °C
> 65 A
--
--
1) Maximum 6 load feeders
Mounting
7.1 Installation guidelines
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Direct-on-line starter/reversing starter (size S3, screw terminals, DIN rail or base plate)
I
e, max
Design
Ambient
temperature
T
a
Horizontal
Vertical
≤ 87 A
60 °C
> 87 A ... 100 A
40 °C
1) Maximum 3 load feeders
Mounting
7.2 Mounting and disassembling load feeders
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7.2
Mounting and disassembling load feeders
7.2.1
Overview
Please proceed as per the mounting instructions below for self-assembly of 3RA2 load
feeders.
Connection systems
Sizes S0 and S00 support three connection systems:
● Screw connection
● Spring-loaded connection
● Hybrid connection
The hybrid connection system combines screw-type and spring-loaded connection
technology. Motor starter protectors with screw connection and contactors with spring-loaded
connection can be installed together in the load feeder.
Sizes S2 and S3 are only available in the version with screw connection (main circuit).
The modular system has suitable link modules for each connection system.
Reference
More information ...
Can be found in the chapter titled ...
About matching link modules
Link modules (Page 126).
Direct-on-line starter and reversing starters
The reversing starter is mounted in the same way as the direct-on-line starter. The reversing
contactor assembly is used on the link module instead of the individual contactor.
Reference
More information ...
Can be found in the appendix ...
About installing reversing contactor
assemblies
"References" under "Manuals - SIRIUS Modular
System (Page 140)" in the "SIRIUS - SIRIUS 3RT
Contactors/Contactor Assemblies" manual
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7.2.2
Load feeder with screw-type connection system
Mounting an S00 load feeder with screw-type connection system
①
Mount the link module on the contactor.
②
Insert the pins into the corresponding main conductor terminals.
③
Screw the main conductor terminals tight.
④
Attach the contactor and the link module to the bottom of the motor starter protector. Insert the
guide tabs into the slots on the motor starter protector.
⑤
Insert the pins into the corresponding main conductor terminals.
⑥
Screw the main conductor terminals tight.
Figure 7-1 Mounting an S00 load feeder with screw-type connection system
Note
Mounting the S0 motor starter protector and S00 contactor with screw-type connection
system
The link module for
the S00 load feeder can also be used to mount an S00 contactor on an
S0
motor starter protector. The link module for the S0
load feeder can also be used to mount
an S0
contactor on an S00 motor starter protector.
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Mounting an S0 load feeder with screw-type connection system
①
Mount the link module on the contactor.
②
Insert the connectors into the corresponding main conductor terminals.
③
Screw the main conductor terminals tight.
④
Place the contactor and the link module on the bottom of the motor starter protector. Insert the
guide tabs into the slots on the motor starter protector. Insert the connectors into the
corresponding main conductor terminals at the same time.
⑤
Screw the main conductor terminals tight.
Figure 7-2 Mounting an S0 load feeder with screw-type connection system
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Mounting an S2 load feeder with screw-type connection system
①
Insert the hooks of the link module (max. 65 A) into the hooking openings provided on the
bottom of the motor starter protector. Insert the connectors into the corresponding main
conductor terminals.
②
Screw the main conductor terminals tight.
③
Insert the motor starter protector with mounted link module and hooks into the hooking
openings on the contactor. Insert the connectors on the link module into the corresponding
main conductor terminals at the same time. A swivel action is required for this.
④
Screw the main conductor terminals tight on the contactor.
Figure 7-3 Mounting an S2 load feeder with a screw-type connection system
Note
Disassemble by carrying out the above steps in reverse order for all sizes.
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Mounting an S3 load feeder with screw-type connection system
The S3 load feeder can only be mounted in combination with a DIN rail adapter onto a DIN
rail or a base plate.
Mounting the S3 load feeder is described in the chapter titled "Mounting direct-on-line
starters and reversing starters on DIN rail adapters (size S3) (Page 83)"
7.2.3
Load feeder with spring-loaded connection system
Mounting an S00 load feeder with spring-loaded connection system
①
Insert the connectors (a) on the link module into the corresponding main conductor
terminals (a) on the contactor. Make sure that the guide tabs are inserted into the slots (c) on
the contactor.
The link module will sit flush with the contactor on the left- and right-hand sides.
Figure 7-4 Mounting an S00 load feeder with spring-loaded connection system
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②
Insert the connectors on the link module (b) into the corresponding main conductor terminals
on the motor starter protector.
Insert the guide tabs (c) into the designated slots at the same time.
The link module will sit flush underneath the motor starter protector on the left- and right-hand
sides.
Figure 7-5 Mounting an S00 load feeder with spring-loaded connection system
Table 7- 5 Main conductor terminals on contactor and motor starter protector (size S00)
Main conductor terminals on the contactor (a)
(S00):
Main conductor terminals on the motor starter
protector (b) (S00):
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Disassembling an S00 load feeder with spring-loaded connection system
1a Slide the screwdriver into the opening on the link module as shown in the figure and press it
down.
1b Position the screwdriver on the link module as shown in the figure and press it down to release
the spring-loaded terminals.
Figure 7-6 Disassembling an S00 load feeder with spring-loaded connection system
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②
Pull the link module and the contactor attached to it toward you to remove it.
Figure 7-7 Disassembling an S00 load feeder with spring-loaded connection system
③
Push the release slide on the rear of the link module up.
Figure 7-8 Disassembling an S00 load feeder with spring-loaded connection system
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④
Take the link module off the contactor.
Figure 7-9 Disassembling an S00 load feeder with spring-loaded connection system
Note
Proceed in the same way to disassemble the reversing starter (size
S00).
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Mounting an S0 load feeder with spring-loaded connection system
①
Insert the connectors (a) on the link module into the corresponding main conductor
terminals (a) on the contactor. Make sure that the guide tabs are inserted into the slots on the
contactor.
Insert the guide tabs (c) on the link module into the slots on the contactor at the same time.
The link module will sit flush with the contactor on the left- and right-hand sides.
Figure 7-10 Mounting an S0 load feeder with spring-loaded connection system
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②
Insert the connectors on the link module (b) into the corresponding main conductor terminals
on the motor starter protector.
Insert the guide tabs (c) into the designated slots at the same time.
The link module will sit flush underneath the motor starter protector on the left- and right-hand
sides.
Figure 7-11 Mounting an S0 load feeder with spring-loaded connection system
Table 7- 6 Main conductor terminals on contactor and motor starter protector (size S0)
Main conductor terminals on the contactor (a) (S0):
Main conductor terminals on the motor starter protector (b) (S0):
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Note
Contactor size S0 alternating current (AC)
S0
contactors with AC operation and spring-loaded connection system need a spacer (d) for
DIN rail or busbar adapter mounting.
Disassembling an S0 load feeder with spring-loaded connection system
1a Slide the screwdriver into the opening on the link module as shown in the figure and press it
down.
1b Position the screwdriver on the link module as shown in the figure and press it down to release
the spring-loaded terminals.
Figure 7-12 Disassembling an S0 load feeder with spring-loaded connection system
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②
Pull the link module and the contactor attached to it toward you to remove it.
Figure 7-13 Disassembling an S0 load feeder with spring-loaded connection system
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③
Push the release slide on the rear of the link module up.
Figure 7-14 Disassembling an S0 load feeder with spring-loaded connection system
④
Take the link module off the contactor.
Figure 7-15 Disassembling an S0 load feeder with spring-loaded connection system
Note
Proceed in the same way to disassemble the reversing starter (size
S0).
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7.2.4
Load feeder with hybrid connection
Mounting an S00 load feeder with hybrid connection system
①
Insert the connectors (a) on the link module into the corresponding main conductor
terminals (a) on the contactor. Make sure that the guide tabs are inserted into the slots on the
contactor.
Insert the guide tabs (c) into the corresponding slots at the same time.
The link module will sit flush with the contactor on the left- and right-hand sides.
Figure 7-16 Mounting an S00 load feeder with hybrid connection system
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②
Attach the contactor and the link module to the bottom of the motor starter protector. Check the
guide tabs.
③
Insert the pins into the corresponding main conductor terminals.
④
Screw all connectors tight.
Figure 7-17 Mounting an S00 load feeder with hybrid connection system
Main conductor terminals on the contactor (size S00)
Figure 7-18 Main conductor terminals on the contactor (size S00)
Note
Mounting the S0 motor starter protector and S00 contactor with hybrid connection system
The link module for the S00
load feeder can also be used to mount an S00 contactor on an
S0
motor starter protector.
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Mounting an S0 load feeder with hybrid connection system
①
Insert the connectors (a) on the link module into the corresponding main conductor
terminals (a) on the contactor. Make sure that the guide tabs are inserted into the slots on the
contactor.
Insert the guide tabs (c) into the corresponding slots at the same time.
The link module will sit flush with the contactor on the left- and right-hand sides.
Figure 7-19 Mounting an S0 load feeder with hybrid connection system
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②
Attach the contactor and the link module to the bottom of the motor starter protector. Check the
guide tabs.
③
Insert the pins into the corresponding main conductor terminal.
④
Screw all connectors tight.
Figure 7-20 Mounting an S0 load feeder with hybrid connection system
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Main conductor terminals on the contactor (size S0)
Figure 7-21 Main conductor terminals on the contactor (size S0)
Note
Contactor size S0 alternating current (AC)
S0
contactors with AC operation and spring-loaded connection system need a spacer (d) for
DIN rail or busbar adapter mounting.
Note
Reverse the above sequence to disassemble both sizes
S00 and S0.
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7.3
Assembly and disassembly with different mounting systems
Assembly/Installation
Fuseless load feeders can be mounted on the following assembly systems:
Table 7- 7 Assembly systems
Starter combination
Direct-on-line starter
Reversing starter
Size
S00
S0
S2
S3
S00
S0
S2
S3
Mounting on
35 mm DIN rail
acc.
to DIN EN 60715
Snap-on mounting without
adapter
✓1) ✓1) ✓2)
(DIN rail
spacing
175 mm)
— ✓1) — — —
With DIN rail adapter ✓1) 3) ✓1) 3) ✓2)
(DIN rail
spacing
125 mm)
✓2)
(DIN rail
spacing
125 mm)
✓1) 3) ✓1) 3) ✓2) ✓2)
(DIN rail
spacing
125 mm)
Mounting on 8US
busbar
with 60
mm busbar center-to-center
spacing
With 8US busbar adapter
✓
✓
✓
—
✓
✓
✓
—
Screw mounting on base plate
Direct screw mounting on
mounting plate
✓ ✓ ✓ — ✓ ✓ ✓ —
Mounting on DIN rail
adapter and screw
mounting of the adapter
on mounting plate.
✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
1)
Mounting on 1 DIN rail
2)
Mounting on 2 DIN rails
3) For high vibration and shock loads: Mounting on 2 DIN rails and DIN rail adapter
NOTICE
Possible damage to load feeder.
• If the load feeder for sizes S00 and S0 is mounted directly on the DIN rail without a DIN
rail adapter, there is no guarantee that the fastening will be vibration-proof.
• Size S0 and S2 reversing starters have to be mounted with DIN rail adapters or busbar
adapters.
• Size S3 reversing starters have to be mounted with DIN rail adapters.
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7.3.1
On DIN rails without DIN rail adapter
DIN rail mounting without adapter
Fuseless load feeders in the following sizes can be snapped onto DIN rails without adapters:
● Direct-on-line and reversing starters in size S00
● Direct-on-line starters in size S0 and S2
No tools are required for mounting and disassembling sizes S00 and S0. A screwdriver is
required for mounting and disassembling size S2.
Note
Vibration or shock load on size S00 reversing starters
In the case of vibration or shock load (such as in railway applications, for example), the
fuseless l
oad feeder (size S00 reversing starter) has to be mounted on a DIN rail adapter to
protect the individual devices against damage.
Figure 7-22 Mounting on DIN rail without adapter (size S00)
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①
Place the feeder (upper hooking position of the motor starter protector) on the upper edge of
the DIN rail, and press it down as shown in the figure.
②
Press the locking device down with a screwdriver. (2.1 / 2.2) Then push the device back with a
swivel action so that it snaps onto the DIN rail. (2.3)
Figure 7-23 Mounting on DIN rail without adapter (size S2)
Note
Disassemble by carrying out the above steps in reverse order for all sizes.
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7.3.2
On DIN rail with DIN rail adapter
All feeders can be mounted on DIN rails with DIN rail adapters.
Types of adapter
One DIN rail adapter each is available for sizes S00/S0, S2 and S3. A pair of adapters is
required for mounting a reversing contactor assembly.
Figure 7-24 DIN rail adapter, individually and as an adapter pair (size S00 / S0)
Note
A DIN rail is required for installation with a DIN rail adapter (size
S0).
An assembly is also possible on two DIN rails with a distance of 125 mm.
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Figure 7-25 DIN rail adapter, individually and as an adapter pair (size S2)
Note
Two DIN rails (DIN rail spacing 125
mm) are required for installation with a DIN rail adapter
(size
S2).
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Figure 7-26 DIN rail adapter, individually and as an adapter pair (size S3)
Note
Two DIN rails (DIN rail spacing 125 mm) are required for installation wi
th a DIN rail adapter
(size S3).
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Design of the adapter type for reversing contactor assembly
The DIN rail adapters can be connected without the need for tools. It is only necessary to
insert link wedges and lateral modules on the rear of the adapter (depending on size).
The following are required to connect two DIN rail adapters:
● In sizes S00 and S0: Two link wedges
● In size S2: Two lateral modules and four link wedges
● In size S3: Three side modules and six link wedges
Figure 7-27 Connection of DIN rail adapters (size S00 and S0)
Figure 7-28 Connection of DIN rail adapters (size S2)
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Figure 7-29 Connection of DIN rail adapters (size S3)
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7.3.2.1 Mounting direct-on-line starters and reversing starters on DIN rail adapters
(sizes S00 and S0)
Mounting the DIN rail adapter on the DIN rail
The DIN rail adapter snaps onto the DIN rail (no tools are required).
Mounting the direct-on-line starter / reversing starter on the DIN rail adapter: Size S00 and S0
The figure below illustrates DIN rail adapter mounting using the example of the size S0
reversing starter with spring-loaded connection system and screw-type connection system.
The devices are snapped onto the DIN rail adapter and screwed onto the adapter.
Left Size S0 reversing starter with DC operation and spring-loaded connection system
Right Size S0 reversing starter with DC/AC operation and screw-type connection system
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① Attach a connecting piece to each of the two DIN rail adapters. Insert each of the
connecting pieces into the left-hand line of holes.
② Snap the feeder onto the DIN rail adapter. Insert the tabs on the connecting pieces into
the fastening holes on the contactors.
③ Screw the feeder to the DIN rail adapter:
• Use two screw holders for the screw mounting.
• Attach a screw holder underneath each connecting piece, flush with the contactor's
mounting base.
• Screw the screw holder to the adapter.
The feeder sits tight on the adapter.
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Mounting the size S0 reversing starter with AC operation and spring-loaded connection system on a
DIN rail adapter
①
Mount the spacer (d) on the contactor (if this has not been done already).
②
Snap the feeder onto the DIN rail adapter.
③
Screw the feeder to the DIN rail adapter:
• Use one screw to fasten the left-hand contactor and another to fasten the right-hand
contactor.
• Push the screw through the lower left-hand fastening hole and the adjacent spacer (d).
Do not use any connecting pieces to fasten the connection.
The feeder sits tight on the adapter.
Disassembling the feeder from the DIN rail adapter
To disassemble the feeder, unscrew the screws and pull the feeder down to remove it.
Disassembling the DIN rail adapter from the DIN rail
To disassemble the adapter, press on it then pull it down to remove it.
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7.3.2.2
Mounting direct-on-line starters and reversing starters on DIN rail adapters (size S2)
Mounting the DIN rail adapter on the DIN rail
The DIN rail adapter snaps onto the DIN rail (no tools are required).
Mounting the direct-on-line starter on the DIN rail adapter: Size S2
The figure below illustrates how the size S2 direct-on-line starter with screw-type connection
system is mounted on a DIN rail adapter. The devices are snapped onto the DIN rail adapter
and screwed onto the adapter.
①
Place the feeder on the DIN rail adapter.
②
Screw the feeder to the DIN rail adapter. The feeder sits tight on the adapter.
Tightening torque: 1.5 ... 1.6 Nm
Note
For vibration and shock requirements, the washer must be replaced with a wedge lock
washer (DIN 50021
-SS 4.4 x 9.0 x 1.7).
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Mounting the direct-on-line starter (with soft starter) on the DIN rail adapter: Size S2
The figure below illustrates how the size S2 direct-on-line starter (with soft starter) with
screw-type connection system is mounted on a DIN rail adapter. The devices are snapped
onto the DIN rail adapter and screwed onto the adapter.
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①
Place the adapter plate on the DIN rail adapter.
②
Screw the adapter plate to the DIN rail adapter.
③
Place the motor starter protector on the DIN rail adapter.
④
Screw the motor starter protector tight on the DIN rail adapter.
⑤
Place the link module on the soft starter from above. At the same time, insert the connectors
on the link module into the corresponding main conductor terminals on the soft starter. A swivel
action is required for this.
⑥
Screw the main conductor terminals tight on the soft starter.
⑦
Place the soft starter with mounted link module on the bottom of the motor starter protector.
Insert the guide tabs into the slots on the motor starter protector. Insert the connectors into the
corresponding main conductor terminals.
⑧
Screw the main conductor terminals tight on the motor starter protector.
⑨
Screw the soft starter tight on the DIN rail adapter. The feeder sits tight on the adapter.
Tightening torque: 1.5 ... 1.6 Nm
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Mounting the reversing starter on the DIN rail adapter: Size S2
The figure below illustrates how the size S2 reversing starter with screw-type connection
system is mounted on a DIN rail adapter. The devices are snapped onto the DIN rail adapter
and screwed onto the adapter.
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①
Place the link module on the bottom of the motor starter protector. Insert the hooks into the
hooking openings on the motor starter protector. Insert the connectors into the corresponding
main conductor terminals.
②
Screw the main conductor terminals tight.
③
Unscrew the main conductor terminals of the contactor fully.
④
Insert the motor starter protector with mounted link module and hooks into the hooking
openings on the contactor. Insert the connectors on the link module into the corresponding
main conductor terminals at the same time. A swivel action is required for this.
⑤
Screw the main conductor terminals tight on the contactor.
⑥
Place the feeder on the DIN rail adapter.
⑦
Screw the feeder to the DIN rail adapter. The feeder sits tight on the adapter.
Tightening torque: 1.2 ... 1.5 Nm
Note
For vibration and shock requirements, the washer must be replaced with a wedge lock
washer (DIN 50021
-SS 4.4 x 9.0 x 1.7).
Disassembling the feeder from the DIN rail adapter
To disassemble the feeder, unscrew the screws and pull the feeder down to remove it.
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Disassembling the DIN rail adapter from the DIN rail
The procedure for disassembling the DIN rail adapter with mounted direct-on-line starter of
size S2 is shown in the figure below. You require a screwdriver for disassembling.
① Press the locking device down with a screwdriver. Then push the DIN rail adapter with
mounted feeder forwards against the pressure of the mounting spring.
② Pull the DIN rail adapter with mounted feeder forwards with a swivel action.
③ Press the DIN rail adapter with mounted feeder upwards and remove the DIN rail adapter with
mounted feeder from the DIN rail.
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The procedure for disassembling the DIN rail adapter with mounted reversing starter of
size S2 is shown in the figure below. You require a screwdriver for disassembling.
①/② Press the locking devices down with a screwdriver. Then push the DIN rail adapter with
mounted feeder forwards against the pressure of the mounting spring.
③ Pull the DIN rail adapter with mounted feeder forwards with a swivel action.
④ Press the DIN rail adapter with mounted feeder upwards and remove the DIN rail adapter
with mounted feeder from the DIN rail.
7.3.2.3 Mounting direct-on-line starters and reversing starters on DIN rail adapters (size S3)
Mounting the DIN rail adapter on the DIN rail
The DIN rail adapter snaps onto the DIN rail (no tools are required).
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Mounting the direct-on-line starter on the DIN rail adapter: Size S3
The figure below illustrates how the size S3 direct-on-line starter with screw-type connection
system is mounted on a DIN rail adapter. The devices are snapped onto the DIN rail adapter
and screwed onto the adapter.
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①
Place the motor starter protector on the DIN rail adapter.
②
Screw the motor starter protector on the DIN rail adapter. The motor starter protector sits tight
on the adapter.
Tightening torque: 1.5 ... 1.6 Nm
③
Insert the connectors on the link module (Ui = 690 V), as shown in the figure, into the bottom
main conductor terminals on the motor starter protector.
④
Screw the main conductor terminals tight.
⑤
Slide the contactor onto the link module from below. Insert the connectors on the link module
into the top main conductor terminals on the contactor.
⑥
Screw the contactor to the DIN rail adapter. The contactor sits tight on the adapter.
Tightening torque: 1.5 ... 1.6 Nm
⑦
Screw the main conductor terminals of the contactor tight.
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Mounting the reversing starter on the DIN rail adapter: Size S3
The figure below illustrates how the size S3 reversing starter with screw-type connection
system is mounted on a DIN rail adapter. The devices are snapped onto the DIN rail adapter
and screwed onto the adapter.
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①
Place the motor starter protector on the DIN rail adapter.
②
Screw the motor starter protector on the DIN rail adapter. The motor starter protector sits tight
on the adapter.
Tightening torque: 1.5 ... 1.6 Nm
③
Place the connectors on the link module (Ui = 690 V), as shown in the figure, into the top main
conductor terminals on the contactor.
④
Screw the main conductor terminals tight on the contactor.
⑤
Place the reversing contactor assembly with the fitted link module onto the DIN rail adapter and
guide the reversing contactor assembly onto the motor starter protector from below. Insert the
connectors on the link module into the bottom main conductor terminals on the motor starter
protector.
⑥
Screw the reversing contactor assembly to the DIN rail adapter. The reversing contactor
assembly sits tight on the adapter.
Tightening torque: 1.5 ... 1.6 Nm
⑦
Screw the main conductor terminals of the motor starter protector tight.
⑧
Attach the wiring modules for connecting the main current paths to the contactors from below.
Disassembling the feeder from the DIN rail adapter
To disassemble the feeder, unscrew the screws and pull the feeder down to remove it.
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Disassembling the DIN rail adapter from the DIN rail
The procedure for disassembling the DIN rail adapter with mounted size S3 direct-on-line
starter is shown in the figure below. You require a screwdriver for disassembling.
① Press the locking device down with a screwdriver. Then push the DIN rail adapter with
mounted feeder forwards against the pressure of the mounting spring.
② Pull the DIN rail adapter with mounted feeder forwards with a swivel action.
③ Press the DIN rail adapter with mounted feeder upwards and remove the DIN rail adapter with
mounted feeder from the DIN rail.
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The procedure for disassembling the DIN rail adapter with mounted reversing starter of size
S3 is shown in the figure below. You require a screwdriver for disassembling.
①/② Press the locking devices down with a screwdriver. Then push the DIN rail adapter with
mounted feeder forwards against the pressure of the mounting spring.
③ Pull the DIN rail adapter with mounted feeder forwards with a swivel action.
④ Press the DIN rail adapter with mounted feeder upwards and remove the DIN rail adapter
with mounted feeder from the DIN rail.
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7.3.3
On busbar system
All device combinations can be mounted on a 60 mm busbar system. Busbar adapters have
to be used for busbar mounting. One adapter is required for direct-on-line starters; a pair of
adapters is required for reversing contactor assemblies.
Figure 7-30 Example of size S0 reversing starter with spring-loaded connection system mounted on
busbar
The busbar adapters and the associated mounting parts can be purchased as accessories.
Component parts of the different mounting variants can be determined via our Online
Configurator (Page 27).
Adapter types for busbars
Busbar adapters and device holders: Busbar adapters are available with or without pre-
assembled connecting cables. Busbar adapters without connecting cables are known as
"device holders".
Busbar adapters and device holders
are available in the adapter lengths 200 mm and
260 mm. All device combinations can be mounted on the long adapter.
Size S2 is distinguished by width and by the number of pre-mounted DIN rails.
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Busbar systems for 60 mm system
● Width: 12 mm to 30 mm
● Thickness: 5 mm or 10 mm
● And for T and I special profiles
Table 7- 8 Busbar adapters for direct-on-line starters
Article No.
Size
Rated current
Connecting
cable
Adapter length
Adapter width
Rated voltage
A
AWG
mm
mm
V
For motor starter protectors with screw terminals
8US1251-5DS10
S00 / S0
25
12
200
45
690
8US1251-5NS10 S0 32 10 200 45 690
8US1251-5NT10
S0
32
10
260
45
690
8US1261-6MT10 S2 80 4 260 55 690
For motor starter protectors with spring-loaded terminals
8US1251-5DS11
S00 / S0
25
12
200
45
690
8US1251-5DT11
S00 / S0
25
12
260
45
690
8US1251-5NT11
S0
32
10
260
45
690
Table 7- 9 Busbar adapters and device holders for reversing starters
Article No.
Size
Rated current
Connecting
cable
Adapter length
Adapter width
Rated voltage
A
AWG
mm
mm
V
Busbar adapters and device holders
8US1211-6MT10
1)
S2
80
4
260
120
690
Device holders
8US1250-5AS10
S00 / S0
--
--
200
45
--
8US1250-5AT10
S0
--
--
260
45
--
1) Assembly kit for configuring reversing starters consisting of motor starter protector and two contactors.
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1
Busbar adapters
2
Device holders
Figure 7-31 Busbar adapters and device holders, two heights and three widths (size S00 / S0)
Figure 7-32 Busbar adapter (size S2)
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Connecting the adapters for reversing contactor assemblies
A pair of adapters comprising a busbar adapter and a device holder is required for the
busbar mounting of a reversing contactor assembly. The pair of adapters can be assembled
from individual components without the need for tools. The 63 mm wide adapter must be
used for assembling the size S2 adapter pair.
Figure 7-33 Adapter pairs for reversing contactor assembly (busbar adapter and device holder,
size S00 / S0)
Figure 7-34 Adapter pairs for reversing contactor assembly (busbar adapter and device holder,
size S2)
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Busbar adapters and device holders can be connected without tools. Link wedges simply
need to be plugged in on the rear of the adapters.
Figure 7-35 Connecting the adapters for mounting reversing contactor assemblies
The link wedges are included in the assembly kit for reversing operation, or they can be
ordered separately as accessories.
Adapting the busbar adapter to the busbar system
DANGER
Hazardous voltage!
Will cause death or serious injury.
Turn off and lock out all power supplying this device before working on this device.
The busbar adapter and the device holder can be adjusted to suit the following busbar
thicknesses:
● 5 mm (delivery condition)
● 10 mm
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Adjusting the busbar adapter to suit the busbar thickness
①
Push the 3 fastening blocks down.
②
Adjust the fastening blocks in accordance with the busbar thickness (5 mm/10 mm).
③
Push the fastening blocks up until they engage.
Figure 7-36 Adjusting the busbar adapter to suit the busbar thickness
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Mounting the busbar adapter on the busbar
Attaching the busbar adapter to the busbar is a very straightforward process. The busbar
hooks on the rear of the adapter will hold the structure securely on the bar even under
severe ambient conditions.
①
Press the button on the top of the busbar adapter to release the holder. The holder should flip
out from the front of the busbar adapter.
Figure 7-37 Mounting the busbar adapter on the busbar
②
Attach the busbar adapter to the busbars from above.
Figure 7-38 Mounting the busbar adapter on the busbar
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Disassembly of the busbar adapter from the busbar system
The diagrams below illustrate how the busbar adapter is disassembled from the busbar
system:
①
From the front, insert a screwdriver into the right-hand opening on the busbar adapter and lock
the holder. The button on the top of the busbar adapter should spring up and lock.
Figure 7-39 Disassembling the busbar adapter from the busbar
②
Remove the busbar adapter from the busbars. To do this, you will first need to push it up
slightly so that you can remove it by pulling it off toward you.
Figure 7-40 Disassembling the busbar adapter from the busbar
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Mounting components on the busbar adapter
Mounting the direct-on-line starter (sizes S00 and S0)
The load feeder components can be attached to the busbar adapter without tools.
① Mount the link module on the contactor.
② Insert the connectors into the corresponding main conductor terminals.
③ Screw the main conductor terminals tight.
④ Place the contactor and the link module on the bottom of the motor starter protector. Insert the guide tabs into the
slots on the motor starter protector. Insert the connectors into the corresponding main conductor terminals at the
same time.
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⑤ Screw the main conductor terminals tight.
⑥ Snap the direct-on-line starter onto the busbar adapter.
⑦ Connect the connection cables to the applicable main conductor terminals.
⑧ Slide the positioning piece from below onto the busbar adapter until it engages at the bottom on the contactor.
Figure 7-41 Mounting on the busbar adapter (direct-on-line starter, screw-type connection system, size S0)
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Figure 7-42 Mounting on the busbar adapter (direct-on-line starter, spring-loaded connection system,
size S0)
Slide the positioning piece from below onto the busbar adapter until it engages at the bottom
on the contactor. In the case of contactors in size S0 with AC operation and spring-loaded
connection technology, the lug must be broken off (a).
S0 contactors with AC operation and spring-loaded connection system need a spacer (d).
The positioning piece and spacer are included in the assembly kit or can be ordered
separately.
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Mounting the direct-on-line starter (size S2)
The figure below shows the work steps for mounting the direct-on-line starter in size S2.
①/② Hook the feeder into the upper hooking position of the motor starter protector, and swivel
the feeder to the busbar adapter.
③ Press the lock on the contactor down using a screwdriver, and push the feeder onto the
DIN rail of the busbar adapter.
④ Insert the connecting cables into the corresponding main conductor terminals. Screw the
main conductor terminals tight.
Figure 7-43 Mounting on the busbar adapter (direct-on-line starter, screw-type connection system,
size S2)
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Mounting the reversing starter (sizes S00 and S0)
The figure below shows an example of the work steps for mounting the reversing starter in
screw-type connection system (size S0).
① Mount the link module on the contactor.
② Insert the connectors into the corresponding main conductor terminals.
③ Screw the main conductor terminals tight.
④ Place the contactor and the link module on the bottom of the motor starter protector. Insert the guide tabs into the
slots on the motor starter protector. Insert the connectors into the corresponding main conductor terminals at the
same time.
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⑤ Screw the main conductor terminals tight.
⑥ Snap the reversing starter onto the busbar adapter.
⑦ Connect the connection cables to the applicable main conductor terminals.
⑧ Slide the positioning piece from below onto the busbar adapter until it engages at the bottom on the contactor.
Figure 7-44 Mounting on the busbar adapter (reversing starter, screw-type connection system, size S0)
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① Insert the connectors on the link module into the corresponding main conductor terminals on
the contactor. Make sure the guide tabs are inserted into the slots on the contactor.
The link module will sit flush with the contactor on the left- and right-hand sides.
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② Insert the connectors on the link module into the corresponding main conductor terminals on
the motor starter protector.
At the same time, insert the guide tabs into the slots provided.
The link module will sit flush underneath the motor starter protector on the left- and right-hand
sides.
③ Snap the reversing starter onto the busbar adapter.
④ Slide the positioning pieces from below onto the busbar adapter until they engage at the
bottom on the contactors. In the case of contactors in size S0 with AC operation and spring-
loaded connection technology, the lug must be broken off (a).
S0 contactors with AC operation and spring-loaded connection system need a spacer (d).
Figure 7-45 Mounting on the busbar adapter (reversing starter, spring-loaded connection system,
size S0)
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Mounting the reversing starter (size S2)
The figure below shows the work steps for mounting the reversing starter in screw-type
connection system (size S2).
① Hook the pre-assembled feeder into the upper hooking position of the motor starter protector, and swivel the feeder
to the busbar adapter.
② Press the locking device on the contactor down with a screwdriver.
③ Push the feeder onto the DIN rail of the busbar adapter.
④ Screw the contactor tight diagonally into the mounting plate openings provided using two M4 screws.
Tightening torque: 1.2 ... 1.5 Nm
⑤ Insert the connecting cables into the corresponding main conductor terminals. Screw the main conductor terminals
tight.
Figure 7-46 Mounting on the busbar adapter (reversing starter, screw-type connection system, size S2)
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Installing the vibration and shock kit
For special vibration and shock acceleration requirements, the vibration and shock kit can be
used to secure the feeder on the busbar adapter.
Installing the vibration and shock kit for direct-on-line starters in sizes S00 and S0
The following figures show how to install the vibration and shock kit 8US1998-1CA10.
Figure 7-47 Installing the vibration and shock kit, direct-on-line starter, screw-type connection
system, size S00
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Installing the vibration and shock kit for direct-on-line starters in size S2
The following figures show how to install the vibration and shock kit for direct-on-line starters
in size S2.
①
/
②
Use a screwdriver to release the screws of the lower plastic DIN rail, and remove the plastic DIN rail by pulling it
down off the busbar adapter.
③
/
④
Use a screwdriver to release the screws of the upper plastic DIN rail, and remove the plastic DIN rail by pulling it
down off the busbar adapter.
⑤
/
⑥
Screw the metal DIN rail tight on the busbar adapter.
Ensure the metal DIN rail is screwed into the busbar adapter in the 5th opening from the top as shown in the figure.
Tightening torque: 0.5 ... 0.8 Nm
⑦
/
⑧
Screw the fastening plate tight to the busbar adapter.
Ensure the fastening plate is screwed into the busbar adapter in the 2nd opening from below as shown in the
figure.
Tightening torque: 0.5 ... 0.8 Nm
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⑨
/
⑩
Hook the feeder into the upper hooking position of the motor starter protector, and swivel
the feeder to the busbar adapter.
⑪
Screw the contactor tight diagonally into the openings provided using two M4 screws, plain
washers and spring washers.
Tightening torque: 1.5 ... 1.6 Nm
⑫
Insert the connecting cables into the corresponding main conductor terminals. Screw the
main conductor terminals tight.
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Installing the vibration and shock kit for reversing starters in sizes S00 and S0
The following figures show how to install the vibration and shock kit 8US1998-1CA10.
Figure 7-48 Installing the vibration and shock kit, reversing starter, screw-type connection system, size S0
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Installing the vibration and shock kit for reversing starters in size S2
①
/
②
Use a screwdriver to release the screws of the lower plastic DIN rail, and remove the plastic DIN rail by pulling it
down off the busbar adapter.
③
/
④
Use a screwdriver to release the screws of the upper plastic DIN rail, and remove the plastic DIN rail by pulling it
down off the busbar adapter.
⑤
/
⑥
Screw the metal DIN rail tight on the busbar adapter.
Ensure the metal DIN rail is screwed into the busbar adapter in the 5th opening from the top as shown in the figure.
Tightening torque: 0.5 ... 0.8 Nm
⑦
/
⑧
Screw the fastening plate tight to the busbar adapter.
Ensure the fastening plate is screwed into the busbar adapter in the 2nd opening from below as shown in the
figure.
Tightening torque: 0.5 ... 0.8 Nm
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⑨
/
⑩
Hook the feeder into the upper hooking position of the motor starter protector, and swivel the
feeder to the busbar adapter.
⑪
Screw the left-hand contactor tight diagonally into the openings provided using two M4
screws, plain washers and spring washers.
Tightening torque: 1.5 ... 1.6 Nm
⑫
Screw the right-hand contactor tight diagonally into the openings provided using two M4
screws, plain washers and spring washers.
Tightening torque: 1.5 ... 1.6 Nm
⑬
Insert the connecting cables into the corresponding main conductor terminals. Screw the
main conductor terminals tight.
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7.3.4
Mounting on base plate
Mounting on base plate
All load feeder components are delivered ready for base plate mounting. The components'
size dictates whether they are mounted on the base plate with or without DIN rail adapters.
Table 7- 10 Mounting on a base plate with or without DIN rail adapter, depending on size
Mounting on base plate
Size
Direct-on-line starter
Reversing starter
Without DIN rail adapter
S00, S0, S2
S00
With DIN rail adapter
S00, S0, S2, S3
S00, S0, S2, S3
7.3.4.1
Mounting on base plate without DIN rail adapter
Mounting on base plate without DIN rail adapter
All size S00 to S2 direct-on-line starters and size S00 reversing starters may be mounted
directly on the base plate.
The load feeder is screwed to the base plate. The device enclosures contain fastening holes,
as well as openings for screw-mounted push-in lugs.
CAUTION
Short-circuit hazard
In configurations with a limiter, insulation of the base plate is necessary to avoid a short-
circuit to the base plate in the event of a short-circuit of the motor starter protector. If the
limiter and the feeder are mounted on the DIN rail adapter, insulation is not required.
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Sizes S00 / S0
The figure below shows mounting on a base plate without DIN rail adapter for size S00
reversing starters as well as for size S00 / S0 direct-on-line starters.
Figure 7-49 Mounting on base plate (reversing starter, screw-type connection system,
size S00)
Note
4
x M4 screws (1.2 ... 1.6 Nm) should be used to fasten the reversing starter.
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Size S2
The figure below shows mounting on a base plate without DIN rail adapter for direct-on-line
starters of size S2.
Figure 7-50 Mounting on base plate (direct-on-line starter, screw-type connection system, size S2)
Note
3 x M4 screws (1.2 ... 1.5 Nm) should be used to fasten the contactors.
Disassembling the DIN rail adapter from the base plate
To disassemble the DIN rail, unscrew the screws and remove the adapter.
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7.3.4.2
Mounting on base plate with DIN rail adapter
Mounting on base plate with DIN rail adapter
Mounting on a base plate with DIN rail adapter is permissible for all device combinations.
Size S0 reversing starters have to be mounted with DIN rail adapters.
The DIN rail adapters contain fastening holes for the screw mounting.
Sizes S00 / S0
The figure below shows mounting on a base plate with DIN rail adapter for reversing starters
and direct-on-line starters of size S00 / S0.
Figure 7-51 Mounting on base plate (reversing starter with DIN rail adapter, screw-type connection
system, size S0)
Note
2
x M4 screws (1.2 ... 1.6 Nm) should be used to fasten the DIN rail adapter.
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Size S2
The figures below show mounting on a base plate with DIN rail adapter for size S2 direct-on-
line starters and reversing starters.
Figure 7-52 Mounting on base plate (direct-on-line starter with DIN rail adapter, screw-type
connection system, size S2)
Note
2 x M4 screws (1.5 ... 1.6 Nm) should be used to fasten the DIN rail adapter.
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Figure 7-53 Mounting on base plate (reversing starter with DIN rail adapter, screw-type connection
system, size S2)
Note
4
x M4 screws (1.5 ... 1.6 Nm) should be used to fasten the DIN rail adapter.
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Size S3
The figures below show mounting on a base plate with DIN rail adapter for size S3 direct-on-
line starters and reversing starters.
Figure 7-54 Mounting on base plate (direct-on-line starter with DIN rail adapter, screw-type
connection system, size S3)
Note
2
x M4 screws (1.5 ... 1.6 Nm) should be used to fasten the DIN rail adapter.
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Figure 7-55 Mounting on base plate (reversing starter with DIN rail adapter, screw-type connection
system, size S3)
Note
4
x M4 screws (1.5 ... 1.6 Nm) should be used to fasten the DIN rail adapter.
Disassembling the DIN rail adapter from the base plate
To disassemble the DIN rail, unscrew the screws and remove the adapter.
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Connection
8
Conductor cross-sections
The conductor cross-sections are the same as those of the individual devices.
Reference
More information ...
Can be found ...
About connecting the terminals in the appendix entitled "References" under "Manuals - SIRIUS
Modular System (Page 140)" in the "SIRIUS - SIRIUS 3RT
Contactors/Contactor Assemblies" manual and
in the "SIRIUS - SIRIUS 3RV motor starter protector" manual.
Connection
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Operation
9
Operator controls on a motor starter protector
Reference
More information ...
Can be found in the appendix ...
About motor starter protector
operation
"References" under "Manuals - SIRIUS Modular System
(Page 140)" in the "SIRIUS - SIRIUS 3RV motor starter
protectors" manual.
Operation
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Accessories
10
10.1
Overview
Accessories for individual devices
The accessories for 3RV2 motor starter protectors, as well as those for 3RT2 contactors, can
be used to install fuseless load feeders.
Reference
More information ...
Can be found in the appendix ...
About accessories for contactors "References" under "Manuals - SIRIUS Modular System
(Page 140)" in the "SIRIUS - SIRIUS 3RT
Contactors/Contactor Assemblies" manual
About accessories for motor starter
protectors
"References" under "Manuals - SIRIUS Modular System
(Page 140)" in the "SIRIUS - SIRIUS 3RV motor starter
protectors" manual.
Special accessories for fuseless load feeders
Accessories are also available which have been optimized for fuseless load feeders. These
include the transverse auxiliary switches with 1 CO contact or 1 NO contact + 1 NC contact,
which are connected to the motor starter protector from above.
There are also special snap-on auxiliary switch blocks for the contactor, which are connected
from below.
These two accessories enable the fuseless load feeders to be wired simply, without the
cables having to be routed through the devices.
Reference
More information ...
Can be found in the appendix ...
About the auxiliary switch blocks for
contactors
"References" under "Manuals - SIRIUS Modular System
(Page 140)" in the "SIRIUS - SIRIUS 3RT
Contactors/Contactor Assemblies" manual
About the auxiliary switches for
motor starter protectors
"References" under "Manuals - SIRIUS Modular System
(Page 140)" in the "SIRIUS - SIRIUS 3RV motor starter
protectors" manual.
Accessories
10.2 Accessories for constructing contactor assemblies for reversing and star-delta (wye-delta) start
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Accessories for the configuration of fuseless load feeders
The following optional accessories can be ordered as individual parts for the configuration of
fuseless load feeders:
● Accessories for starter combinations
● Accessories for DIN rail mounting
● Accessories for busbar mounting
10.2
Accessories for constructing contactor assemblies for reversing and
star-delta (wye-delta) start
The following accessories are available for starter combinations:
● Wiring kit for reversing operation
● Wiring kit for star-delta (wye-delta) starting
● Link module for the electrical and mechanical connection between motor starter protector
and contactor with screw-type, spring-loaded or hybrid connection system
Reference
More information ...
Can be found in the appendix ...
About the wiring kit for reversing operation and
about the wiring kit for contactor assemblies for
star-delta (wye-delta) start
"References" under "Manuals - SIRIUS Modular
System (Page 140)" in the "SIRIUS - SIRIUS 3RT
Contactors/Contactor Assemblies" manual
10.3
Link modules
The SIRIUS modular system features link modules to facilitate combinations involving the
following devices:
● Motor starter protector and contactor
● Motor starter protector and soft starter
● Motor starter protector and solid-state contactor (size S0 only)
Function
The link module establishes the electrical and mechanical connection between motor starter
protector and contactor/soft starter/solid-state contactor. There are three different types
according to connection system:
● Link module for devices with screw-type connection system
● Link module for devices with spring-loaded connection system (sizes S00 and S0 only)
● Link module for hybrid connection (sizes S00 and S0 only)
Accessories
10.3 Link modules
SIRIUS - SIRIUS 3RA load feeders
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Versions
Table 10- 1 Link module versions
Connection system
Link module version
Article number
Screw-type
connection system
Motor starter protector –
contactor in size S00
3RA1921-1DA00
Motor starter protector –
contactor in size S0 AC
3RA2921-1AA00
Motor starter protector –
contactor in size S0 DC
3RA2921-1BA00
Motor starter protector – soft
starter in size S00
Motor starter protector – soft
starter in size S0
Motor starter protector – solid-
state contactor
Motor starter protector –
contactor in size S2
3RA2931-1AA00
Motor starter protector – soft
starter in size S2
Motor starter protector –
contactor in size S3
3RA1941-1AA00
Accessories
10.3 Link modules
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Connection system
Link module version
Article number
Spring-loaded
connection system
Motor starter protector –
contactor in size S00
3RA2911-2AA00
Motor starter protector –
contactor in size S0
3RA2921-2AA00
Motor starter protector – soft
starter in size S00
3RA2911-2GA00
Motor starter protector – soft
starter in size S0
3RA2921-2GA00
Accessories
10.4 Accessories for DIN rail mounting
SIRIUS - SIRIUS 3RA load feeders
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Connection system
Link module version
Article number
Hybrid connection
system1)
Motor starter protector –
contactor in size S00
3RA2911-2FA00
Motor starter protector –
contactor in size S0
3RA2921-2FA00
1) The motor starter protector has a screw connection. The contactor has a spring-loaded connection.
Reference
More information ...
Can be found in the chapter titled ...
About mounting device combinations with
connecting piece
Mounting and disassembling load feeders (Page 47).
10.4
Accessories for DIN rail mounting
As well as the DIN rail adapter which can be ordered separately, the following kits are
available for DIN rail mounting?
Table 10- 2 Assembly kit for reversing operation for DIN rail (size S0)
Screw connection
Spring-loaded connection system
3RA2923-1BB1
3RA2923-1BB2
Wiring modules (top and bottom)
Wiring modules (top and bottom)
Auxiliary wiring module (top and bottom)
Auxiliary wiring stranded wires
Connection clips (2 x)
Connection clips (2 x)
Mechanical interlock
Mechanical interlock
DIN rail adapter (2 x)
DIN rail adapter (2 x)
Link wedge (2 x) Link wedge (2 x)
Screw holder (2 x)
Screw holder (2 x)
Accessories
10.4 Accessories for DIN rail mounting
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Screw connection
Spring-loaded connection system
3RA2923-1BB1
3RA2923-1BB2
Screw (2 x)
Screw (2 x)
Screw (2 x) for AC feeders
Spacer (2 x)
Table 10- 3 Assembly kit for reversing operation for DIN rail (size S2)
Screw connection
3RA2933-1BB1
DIN rail adapter (2 x)
Mechanical interlock
Wiring modules (top and bottom)
Connector for contactors (2 x)
Auxiliary wiring module (top and bottom)
Screw and plain washer for mounting devices (3 x)
Side module (2 x)
Operating instructions
Link wedge (4 x)
Table 10- 4 Assembly kit for reversing operation for DIN rail (size S3)
Screw connection
3RA2943-1BB1
DIN rail adapter (2 x)
Mechanical interlock
Wiring modules (top and bottom)
Connector for contactors (2 x)
Auxiliary wiring module (top and bottom)
Screw and plain washer for mounting devices (6 x)
Side module (3 x)
Operating instructions
Link wedge (6 x)
Reference
More information ...
Can be found in the chapter titled ...
About mounting the assembly kit for the
DIN rail
On DIN rail with DIN rail adapter (Page 69).
Accessories
10.5 Accessories for busbar mounting
SIRIUS - SIRIUS 3RA load feeders
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10.5
Accessories for busbar mounting
The following kits for reversing operation are available for busbar mounting in various
connection systems and sizes.
Table 10- 5 Assembly kit for reversing operation for busbar (size S00)
Screw connection
Spring-loaded connection system
3RA2913-1DB1
3RA2923-1EB1
3RA2913-1DB2
---
Auxiliary wiring module (top and bottom)
Auxiliary wiring module (top)
Wiring modules (top and bottom)
Wiring modules (top and bottom)
Connection clips (2 x) Connection clips (2 x)
Mechanical interlock
Mechanical interlock
Busbar adapter
Busbar adapter
Device holder
Device holder
Table 10- 6 Assembly kit for reversing operation for busbar (size S0)
Screw connection
Spring-loaded connection system
3RA2923-1DB1
3RA2923-1DB2
Wiring modules (top and bottom)
Wiring modules (top and bottom)
Auxiliary wiring module (top and bottom)
Auxiliary wiring stranded wires
Connection clips (2 x)
Connection clips (2 x)
Mechanical interlock
Mechanical interlock
Busbar adapter
Busbar adapter
Device holder
Device holder
Spacer (2 x)
Accessories
10.5 Accessories for busbar mounting
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Table 10- 7 Assembly kit for reversing operation for busbar (size S2)
Screw connection
3RA2933-1DB1
Busbar adapters and device holders
Connector for contactors (2x)
Wiring modules (top and bottom)
Mechanical interlock
Auxiliary wiring module (top and bottom) Screw and plain washer for mounting devices (2x)
The following accessories can also be ordered separately.
● Busbar adapter:
For 60 mm busbar center-to-center spacing. 2 lengths, 200 mm (only size S00 with
screw-type connection system) and 260 mm. With connecting cables.
● Device holder (sizes S00 and S0 only):
For 60 mm busbar center-to-center spacing. 2 lengths, 200 mm and 260 mm. Without
connecting cables.
● Busbar adapter and device holder (size S2):
For 60 mm busbar center-to-center spacing. 260 mm long. With connecting cables.
● Vibration and shock kit 8US1998-1DA10 (size S2) for busbar mounting under severe
ambient conditions.
Reference
More information ...
Can be found in the chapter titled ...
About the available adapter types and
mounting the assembly kit for the busbar
On busbar system (Page 90).
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Technical data
11
11.1
Technical data in Siemens Industry Online Support
Technical data sheet
You can also find the technical data of the product at Siemens Industry Online Support
(https://support.industry.siemens.com/cs/ww/en/ps/16289/td).
1. Enter the full article number of the desired device in the "Product" field, and confirm with
the Enter key.
2. Click the "Technical data link.
11.2
Overview tables
Overview tables technical data
You will find overview tables with technical data in the "Product information" tab in our online
ordering system
(https://mall.industry.siemens.com/mall/en/WW/Catalog/Products/10043038?tree=CatalogTree).
Technical data
11.2 Overview tables
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SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 135
Circuit diagrams
12
12.1
CAx data
You can find the CAx data in the Siemens Industry Online Support
(https://support.industry.siemens.com/cs/ww/en/ps/16288/td).
1. Enter the full article number of the desired device in the "Product" field, and confirm with
the Enter key.
2. Click the "CAx data link.
3RA2 load feeders
3RA2110-....
Figure 12-1 Fuseless load feeder, direct-on-line starter, S00
Circuit diagrams
12.1 CAx data
SIRIUS - SIRIUS 3RA load feeders
136 Manual, 09/2016, A5E03656507520A/RS-AB/003
3RA2120-.... / 3RA2130-.... / 3RV2.4 + 3RT204
Figure 12-2 Fuseless load feeder, direct-on-line starter, S0 / S2 / S3
3RA2210-....
Figure 12-3 Fuseless load feeder, reversing starter, S00
3RA2220-.... / 3RV2.4 + 3RT204
Figure 12-4 Fuseless load feeder, reversing starter, S0 / S2 / S3
SIRIUS - SIRIUS 3RA load feeders
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Types of coordination
A
Types of coordination
Standard DIN EN 60947-4-1 (VDE 0660 Part 102) or IEC 60947-4-1 distinguishes between
two types of coordination (type of coordination), which are referred to as coordination type
"1" and coordination type "2". In the case of both types of coordination, the short-circuit is
reliably mastered. the only differences are in the extent of the damage sustained by the
device following a short circuit.
Type of coordination 1
The load feeder may be non-operational after a short circuit has been cleared. Damage to
the contactor and the overload release is also permissible.
Type of coordination 2
After short-circuit disconnection, there must be no damage to the overload release or to any
other part. The load feeder can resume operation without needing to be renewed. Welding of
the contactor contacts only is permitted if these can be separated easily without significant
deformation.
Types of coordination
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Manual, 09/2016, A5E03656507520A/RS-AB/003 139
References
B
B.1
References
Further references
You will find further information about the 3RA21/3RA22 load feeders on the Internet
(http://support.automation.siemens.com/WW/view/en/20356384/133300).
In addition to this manual, please refer to the operating instructions and manuals for any
accessories. You can download the relevant documentation from the Internet
(http://www.siemens.com/sirius/manuals). Simply enter the article number of the relevant
item into the search field.
Operating instructions
Title
Article number
SIRIUS Fuseless Load Feeder S00 (3RA2110) 3ZX1012-0RA20-2GA1
SIRIUS Fuseless Load Feeder S0 (3RA2120)
3ZX1012-0RA20-1DA1
SIRIUS Direct-On-Line Starter on Busbar S00 (3RA2110)
3ZX1012-0RA21-2AA1
SIRIUS Direct-On-Line Starter on Busbar S0 (3RA2120)
3ZX1012-0RA21-1AA1
SIRIUS Reversing Starter on Busbar S00 (3RA2210)
3ZX1012-0RA22-2AA1
SIRIUS Reversing Starter on Busbar S0 (3RA2220)
3ZX1012-0RA22-1AA1
SIRIUS Reversing Starter on DIN Rail S00 (3RA2210)
3ZX1012-0RA22-3AA1
SIRIUS Reversing Starter on DIN Rail S0 (3RA2220)
3ZX1012-0RA22-5AA1
SIRIUS Fuseless Load Feeder S2 (3RA2130)
3ZX1012-0RA20-3DA1
SIRIUS Assembly Kit for Reversing Starters S2 on DIN Rail Adapter (3RA2933-1BB1)
3ZX1012-0RA21-3AA1
SIRIUS Assembly Kit for Reversing Starters S2 on Busbar (3RA2933-1DB1)
3ZX1012-0RA21-3BA1
SIRIUS Assembly Kit for Reversing Starters S3 on DIN Rail Adapter (3RA2943-1BB1)
3ZX1012-0RA21-4AA1
SIRIUS link module S3 for fuseless load feeders (3RA1941-1A / 3RA1941-1AA00)
3ZX1012-0RA21-4DA1
References
B.2 Manuals - SIRIUS Modular System
SIRIUS - SIRIUS 3RA load feeders
140 Manual, 09/2016, A5E03656507520A/RS-AB/003
B.2 Manuals - SIRIUS Modular System
Manuals - SIRIUS Modular System
You can download the SIRIUS manuals from the Internet
(http://www.siemens.com/sirius/manuals).
Simply enter the Article number of the relevant item into the search field.
Information about ... Is available in ...
• SIRIUS - system
overview
• "SIRIUS - System Overview"
(http://support.automation.siemens.com/WW/view/en/60311318)
manual
(Article number: 3ZX1012-0RA01-5AC1)
• Contactors and
contactor assemblies
3RT, 3RH and 3RA
• "SIRIUS - SIRIUS 3RT contactors and contactor assemblies"
(http://support.automation.siemens.com/WW/view/en/60306557)
manual
(Article number: 3ZX1012-0RT20-5AC1)
• 3RF34 electronic
switching devices
• "SIRIUS - SIRIUS 3RF34 electronic Switching Devices"
(http://support.automation.siemens.com/WW/view/en/60298187)
manual
(Article number: 3ZX1012-0RF34-5AC1)
• 3RW soft starters • "SIRIUS 3RW30/3RW40 Soft Starters"
(http://support.automation.siemens.com/WW/view/en/38752095)
manual
(Article number: 3ZX1012-0RW30-1AC1)
• "SIRIUS 3RW44 Soft Starter"
(http://support.automation.siemens.com/WW/view/en/21772518)
manual
(Article number: 3ZX1012-0RW44-1AC1)
• 3RV motor starter
protectors
• "SIRIUS - SIRIUS 3RV" motor starter protectors
(http://support.automation.siemens.com/WW/view/en/60279172)
manual
(Article number: 3ZX1012-0RV20-5AC1)
• 3RU, 3RB overload
relays
• "SIRIUS 3RU thermal overload relays / SIRIUS 3RB electronic
overload relays"
(http://support.automation.siemens.com/WW/view/en/60298164)
(Article number: 3ZX1012-0RU20-5AC1)
• 3RB24 electronic
overload relay
• "3RB24 electronic Overload Relay for IO-Link"
(http://support.automation.siemens.com/WW/view/en/46165627)
manual
(Article number: 3ZX1012-0RB24-0AC0)
• 3UG4 monitoring relays /
3RR2 current monitoring
relays
• "3UG4/3RR2 Monitoring Relays" manual
(http://support.automation.siemens.com/WW/view/en/70210263)
(Article number: 3ZX1012-0UG40-0AC0)
References
B.2 Manuals - SIRIUS Modular System
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 141
Information about ... Is available in ...
• 3RS1/3RS2 temperature
monitoring relays
• "3RS1/3RS2 temperature monitoring relays" manual
(http://support.automation.siemens.com/WW/view/en/54999309)
(Article number: 3ZX1012-0RS10-1AC1)
• 3UG48 monitoring relays /
3RR24 current monitoring
relays for IO-Link
• "3UG48/3RR24 Monitoring Relays for IO-Link"
(http://support.automation.siemens.com/WW/view/en/68834040)
manual
(Article number: 3ZX1012-0UG48-0AC1)
• 3RS14/3RS15
temperature monitoring
relays for IO-Link
• "3RS14/3RS15 temperature monitoring relays for IO-Link"
(http://support.automation.siemens.com/WW/view/en/54375463)
manual
(Article number: 3ZX1012-0RS14-0AC0)
• 3RA load feeders • "SIRIUS - SIRIUS 3RA load feeders" manual
(http://support.automation.siemens.com/WW/view/en/60284351)
(Article number: 3ZX1012-0RA21-5AC1)
• 3RA6 compact starters • "SIRIUS 3RA6 Compact Starter"
(http://support.automation.siemens.com/WW/view/en/27865747)
manual
(Article number: 3RA6992-0A)
• 3RA28 function modules
for mounting on
contactors
• "SIRIUS Innovations - SIRIUS 3RA28 Function Modules for
mounting on 3RT2 Contactors" manual
(http://support.automation.siemens.com/WW/view/en/60279150)
(Article number: 3ZX1012-0RA28-5AC1)
• 3RA27 function modules
for connection to the
higher-level control
• "SIRIUS - SIRIUS 3RA2712 function modules for AS-Interface"
manual
(http://support.automation.siemens.com/WW/view/en/39318922)
(Article number: 3ZX1012-0RA27-0AC0)
• "SIRIUS - SIRIUS 3RA2711 function modules for IO-Link" manual
(http://support.automation.siemens.com/WW/view/en/39319600)
(Article number: 3ZX1012-0RA27-1AC1)
• 4SI SIRIUS electronic
module
(3RK1005-0LB00-0AA0)"
• "4SI SIRIUS Electronic Module"
(http://support.automation.siemens.com/WW/view/en/37856470)
manual
(Article number: 3ZX1012-0LB00-0AA0)
References
B.3 More information
SIRIUS - SIRIUS 3RA load feeders
142 Manual, 09/2016, A5E03656507520A/RS-AB/003
B.3
More information
More information
More information is available from Siemens on the Internet via the following links.
●
Product documentation
You will find a list of manuals/operating instructions, characteristic curves, and certificates
on the Internet (http://www.siemens.com/sirius/support).
●
Product information
Catalogs and other informative documents can be obtained from the Information Center
and Download Center (http://www.siemens.com/sirius/infomaterial).
●
Online ordering system
You will find the online ordering system with all the latest data on the ordering and
information platform (http://www.siemens.com/sirius/mall).
●
Technical Assistance
Siemens supports you with all technical product and system enquiries – both before and
after delivery. You can access our Service & Support Portal on the Internet
(http://www.siemens.com/sirius/technical-assistance). You can also submit your question
directly to a technical consultant using our support request service.
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 143
Dimension drawings (dimensions in mm)
C
C.1
CAx data
You can find the CAx data in the Siemens Industry Online Support
(https://support.industry.siemens.com/cs/ww/en/ps/16288/td).
1. Enter the full article number of the desired device in the "Product" field, and confirm with
the Enter key.
2. Click the "CAx data link.
Note
All dimensions are specified in mm.
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
SIRIUS - SIRIUS 3RA load feeders
144 Manual, 09/2016, A5E03656507520A/RS-AB/003
C.2
3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
3RA2 fuseless load feeders – Size S00 for DIN rail
Figure C-1 S00 direct-on-line starter, AC/DC, screw-type connection system
3RA2110-..A
Figure C-2 S00 direct-on-line starter, AC/DC, spring-loaded connection system
3RA2110-..E
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
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Manual, 09/2016, A5E03656507520A/RS-AB/003 145
Figure C-3 S00 direct-on-line starter, AC/DC, hybrid connection system, link
module 3RA2911-2FA00
Note
The version of the fuseless load feeder (S00
direct-on-line starter, AC/DC) with hybrid
connection system is not available as a 3RA2
pre-assembled combination.
Figure C-4 S00 reversing starter, AC/DC, screw-type connection system
3RA2210-..A
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
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Figure C-5 S00 reversing starter, AC/DC, spring-loaded connection system
3RA2210-..E
3RA2 fuseless load feeders – Size S0 for DIN rail
Figure C-6 S0 direct-on-line starter, AC, screw-type connection system
3RA2120-..A
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
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Figure C-7 S0 direct-on-line starter, DC, screw-type connection system
3RA2120-..A
Figure C-8 S0 direct-on-line starter, AC, spring-loaded connection system
3RA2120-..E
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
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Figure C-9 S0 direct-on-line starter, DC, spring-loaded connection system
3RA2120-..E
Figure C-10 S0 direct-on-line starter, AC, hybrid connection system, link module 3RA2921-2FA00
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
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Manual, 09/2016, A5E03656507520A/RS-AB/003 149
Figure C-11 S0 direct-on-line starter, DC, hybrid connection system, link module 3RA2921-2FA00
Note
The versions of the fuseless load feeder (S0
direct-on-line starter, AC and DC) with hybrid
connection system are not available as 3RA2
pre-assembled combinations.
Figure C-12 S0/S0 and S00/S0 reversing starters, AC, screw-type connection system
3RA2220-..B..-0AP0
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
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150 Manual, 09/2016, A5E03656507520A/RS-AB/003
Figure C-13 S0 reversing starter, AC with spring-loaded connection system
3RA2220-..F..-0AP0
Figure C-14 S0/S0 and S00/S0 reversing starters, DC, screw-type connection system
3RA2220-..B..-0BB4
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
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Figure C-15 S0 reversing starter, DC, spring-loaded connection system
3RA2220-..F..-0BB4
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
SIRIUS - SIRIUS 3RA load feeders
152 Manual, 09/2016, A5E03656507520A/RS-AB/003
3RA2 fuseless load feeders – Size S2 for DIN rail
Figure C-16 Direct-on-line starter S2, screw-type connection system
3RA2130-4.A..-....
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 153
Figure C-17 Direct-on-line starter S2, screw-type connection system
3RA2130-4.A..-...., DIN rail adapter 3RA2932-1AA00
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
SIRIUS - SIRIUS 3RA load feeders
154 Manual, 09/2016, A5E03656507520A/RS-AB/003
Figure C-18 Direct-on-line starter S2 with 3RW4.3 soft starter, screw-type connection system, DIN rail
adapter 3RA2932-1CA00
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 155
Figure C-19 Reversing starter S2, screw-type connection system, DIN rail adapter 3RA2932-1AA00
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
SIRIUS - SIRIUS 3RA load feeders
156 Manual, 09/2016, A5E03656507520A/RS-AB/003
3RA2 fuseless load feeders – Size S3 for DIN rail
Note
The following versions of the fuseless load feeder are not available as 3RA2
pre-assembled
combinations.
Figure C-20 Direct-on-line starter S3, screw-type connection system, DIN rail
adapter 3RA2942-1AA00
Dimension drawings (dimensions in mm)
C.2 3RA2 fuseless load feeders – Size S00 to S3 for DIN rail
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 157
Figure C-21 Reversing starter S3, screw-type connection system, DIN rail adapter 3RA2942-1AA00
Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
SIRIUS - SIRIUS 3RA load feeders
158 Manual, 09/2016, A5E03656507520A/RS-AB/003
C.3
3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar
systems
3RA2 fuseless load feeders – Size S00 for 60 mm busbar systems
Figure C-22 S00 direct-on-line starter, AC/DC, screw-type connection system
3RA2110-..D
Figure C-23 S00 reversing starter, AC/DC, screw-type connection system
3RA2210-..D
Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 159
Figure C-24 S00 direct-on-line starter, AC/DC, spring-loaded connection system
3RA2110-..H
Figure C-25 S00 reversing starter, AC/DC, spring-loaded connection system
3RA2210-..H
Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
SIRIUS - SIRIUS 3RA load feeders
160 Manual, 09/2016, A5E03656507520A/RS-AB/003
3RA2 fuseless load feeders – Size S0 for 60 mm busbar systems
Figure C-26 S0/S0 and S00/S0 direct-on-line starters, AC, screw-type connection system
3RA2120-..D..-0AP0
Figure C-27 S0/S0 and S00/S0 reversing starters, AC, screw-type connection system
3RA2220-..D..-0AP0
Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 161
Figure C-28 S0 direct-on-line starter, AC, spring-loaded connection system
3RA2120-..H..-0AP0
Figure C-29 S0 reversing starter, AC, spring-loaded connection system
3RA2220-..H..-0AP0
Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
SIRIUS - SIRIUS 3RA load feeders
162 Manual, 09/2016, A5E03656507520A/RS-AB/003
Figure C-30 S0/S0 and S0/S00 direct-on-line starters, DC, screw-type connection system
3RA2120-..D..-0BB4
Figure C-31 S0/S0 and S00/S0 reversing starters, DC, screw-type connection system
3RA2220-..D..-0BB4
Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 163
Figure C-32 S0 direct-on-line starter, DC, spring-loaded connection system
3RA2120-..H..-0BB4
Figure C-33 S0 reversing starter, DC, spring-loaded connection system
3RA2220-..H..-0BB4
Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
SIRIUS - SIRIUS 3RA load feeders
164 Manual, 09/2016, A5E03656507520A/RS-AB/003
3RA2 fuseless load feeders – Size S2 for 60 mm busbar systems
Figure C-34 Direct-on-line starter S2, screw-type connection system
3RA2130-4.A..-...., busbar adapter 8US1261-6MT10
Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 165
Figure C-35 Reversing starter S2, screw-type connection system, busbar adapter and device holder
Dimension drawings (dimensions in mm)
C.3 3RA2 fuseless load feeders – Size S00 to S2 for 60 mm busbar systems
SIRIUS - SIRIUS 3RA load feeders
166 Manual, 09/2016, A5E03656507520A/RS-AB/003
SIRIUS - SIRIUS 3RA load feeders
Manual, 09/2016, A5E03656507520A/RS-AB/003 167
Index
3
3D model, 10
A
Accessories
Load feeders, 125
Accessories - Load feeders
Accessories for busbar mounting, 131, 132
Accessories for DIN rail mounting, 129
Busbar adapter, 132
Device holder, 132
Link module, 126
Starter combinations, 126
Accessories for busbar mounting
Load feeders, 131, 132
Accessories for DIN rail mounting
Load feeders, 129
App
Siemens Industry Online Support, 11
Applications
Load feeders, 22
Auxiliary switches
Load feeders, 16
B
Basic knowledge, 8
Busbar adapter
Load feeders, 132
Busbar adapters
Load feeders, 91, 94, 96
Busbar mounting
Load feeders, 66
Busbar system
Load feeders, 90
C
CAx data, 10, 135, 143
Connection systems
Load feeders, 18, 21, 47
Contactor assemblies for star-delta (wye-delta) start
Load feeders, 19
D
Device holder
Load feeders, 132
Device holders
Load feeders, 91
Device versions
Load feeders, 15
Dimension drawings, 10
DIN rail adapter
Load feeders, 69
Direct-on-line start
Load feeders, 25
Direct-on-line starters
Load feeders, 47, 90
Disposal, 11
E
EPLAN macros, 10
H
Hybrid connection
Load feeders, 47, 129
I
Installation guidelines
Load feeders, 33
Internal circuit diagrams
Load feeders, 135
L
Link module
Hybrid connection, 61, 129
Load feeder, 126, 126
Screw terminals, 48, 127
Spring-loaded connection, 51
Spring-loaded terminals, 128
Load feeders
Combination of individual devices, 19, 25, 47
Pre-assembled complete devices, 18, 25
Tested device combinations, 23
Index
SIRIUS - SIRIUS 3RA load feeders
168 Manual, 09/2016, A5E03656507520A/RS-AB/003
M
Minimum clearance
Load feeders, 33
Modular System, 140
O
Operating instructions, 139
Overload
Load feeders, 25
P
Pair of adapters
Load feeders, 93
Product data sheet, 135, 143
R
Railway applications
Load feeders, 67, 132
Recycling, 11
References, 139
Reversing contactor assemblies
Load feeders, 19, 72, 90, 93
Reversing start
Load feeders, 25, 126
Reversing starters
Load feeders, 47
S
Scope of validity
Manual, 8
Screw mounting
Load feeders, 66
Short-circuit protection
Load feeders, 25
SIRIUS system configurator, 27
Snap-on mounting
Load feeders, 66, 67, 69
Soft start
Load feeders, 25
Standards
Load feeders, 13
Star-delta (wye-delta) start
Load feeders, 25, 126
Starter combinations
Load feeders, 126
T
Technical Assistance, 12
Tripping classes
Load feeders, 25
Types of coordination, 137
Load feeders, 16
W
Wall mounting
Load feeders, 113
