ABB Descriptive Bulletin
41-077
Page 1
April 2002
Supersedes DB-41-077
Dated April, 1998
Flexitest Switch
Type FT-1
For Multi-Circuit Testing of Switchboard
Relays, Meters and Instruments
APPLICATION
The ABB Type FT-1 Flexitest Switches and ABB Test
Plugs are designed and manufactured to allow quick
and easy multi-circuit testing of protective relays,
meters and instruments by any conventional system.
Advantages
The Type FT-1 Switches and related Test Plugs have
all the features necessary for applications involving
the measurement of individual currents and voltages
associated with substation instrumentation and pro-
tection devices. The make before break current short
circuit feature also allows test personnel to quickly
and safely isolate equipment from current trans-
former (ct) circuits.
Safe and Convenient
The semi-flush mounted FT-1 Switch provides fast,
safe and reliable access to components and circuits
on panel boards and switchboards without discon-
necting existing wiring. All measurements and tests
can be performed at the front of the switchboard
without taking any devices out of service.
Fast and Reliable
When Test Plugs are used, any number of circuits
may be tested in rapid succession, since one plug
properly connected can test all instruments or meters
of a particular type.
Maximum Flexibility
The FT-1 Switch is built with a maximum of ten indi-
vidual poles or switch units. The switches can be
assembled in a variety of different arrangements, to
match customer requirements.
ABB Test Plugs are used in conjunction with the FT-1
Switch to enable easy measurement, calibration, ver-
ification or maintenance of relays, meters or instru-
ments.
Voltage measurements can also be made directly on
the FT-1 Switch (without disturbing existing connec-
tions). There is a test clip located on the top of each
pole that allows connection with standard spring clip
test leads.
Security
With the cover in place, a meter type lead seal can
be placed through either of the cover studs of the
FT-1 Switch to prevent unauthorized access to the
switch. As an additional feature, a clear cover is
available that can also be installed and locked with
the switchblades in the open position.
Figure 1. FT-1 Flexitest Switch (Front View)
DB 41-077
Page 2
SPECIFICATIONS
Ratings
The FT-1 Switch is rated at 600 volts and 30 amps. It
is UL recognized, and meets or exceeds all the
requirements in ANSI/IEEE C37-90 standard.
Mounting
FT-1 Switches are designed for semi-flush mounting
on the front of switchboard panels, facilitating inspec-
tion and accessibility.
FT-1 SWITCH CONSTRUCTION
Base
The base of the FT-1 Flexitest Switch is made of a
molded polycarbonate material, which provides a
tough, insulated enclosure. Barriers are molded into
the base (front and rear) to separate the switch units
from one another. The barriers provide insulation
between poles, and also ample wiring space
between terminals.
Cover
The cover of the FT-1 Switch provides a tough insu-
lated enclosure for the switch and is also made of a
polycarbonate material. FT-1 standard styles come
with a black opaque cover, but an optional clear
cover is also available. This clear switch cover
affords the user the unique option of intentionally
leaving switch handles in the open position and
replacing the cover. Maintaining the provision for a
meter seal when some handles are in the open posi-
tion allows the user to service electrical equipment
while still complying with OSHA tag and lock proce-
dures.
The clear cover can be ordered on new FT-1
Switches or ordered separately for retrofit to existing
FT-1 Switches. Users will maintain the same ease of
accessibility as with the black opaque cover.
The cover thumb nut has been modified so that a
1/4” nut driver can be used to loosen & tighten it.
This is the same size nut driver that is used on the
hex head terminal screws of the standard FT-1
Switch.
Poles
FT-1 Switches are available in combinations of any-
where from 1 to a maximum of 10 individual poles or
switch units. Each pole is identified by a letter (A to J)
visible along the top of the base from left to right (See
Fig. 1).The individual switch units are of a knife blade
type. There are two different types of switch units
available: potential poles and current poles. Potential
poles (P, T, . . .) are configured as single, non-short-
ing knife blades for use in potential, trip, or control
circuits. Current poles are typically configured in sets
of two, (C-C), for use with current circuits; and con-
sist of a current test jack, a shorting spring, a shorting
blade, and a non-shorting blade. (See Fig. 2) The
positions of the short circuit springs are visible from
the front of the switch.
Switch Handles
Switch handles are made of a molded phenolic mate-
rial, and are typically black for potential and current
circuits, and red for trip circuits. They are also avail-
able in a variety of different colors. Each handle has
a dovetail indentation to hold a circuit identification
label. Knife blade switches can be operated indepen-
dently, or ganged together with a horizontal interlock-
ing bar, to suit testing needs. (See Fig. 3)
A hole runs through the middle of each switch handle
to allow insertion of interlocking bars that can
mechanically tie 2, 3, 4, 5, 6 or 10 switch handles
together. Interlocking Bars are sold separately. (See
“ACCESSORIES – ORDERING INFORMATION” on
page 8.)
Weight Net
lbs. (kg)
Shipping
lbs. (kg)
FT-1 Switch 1.75 (.79) 3 (1.4)
In Service Series Test Plug 1.5 (.68) 3 (1.4)
Separate Source Test Plug 1.5 (.68) 3 (1.4)
Individual Current Circuit Test plug 0.1 (.045) 1 (0.45)
Figure 2. Blade assembly of two position pole “C-C”
(Rear View, outside of base)
DB 41-077
Page 3
Terminals
Connection terminals are located at the rear of the
switch. Terminals are numbered 1 to 20 for easy iden-
tification (rear view). Each pair of numbered terminals
is associated with a matching pole designated by a
letter on the front of the switch. (See Fig. 4)
Figure 3. Switch Handles Figure 4. FT-1 Switch (rear view)
FT-1 SWITCH ORDERING INFORMATION
Style Number
Prefix
Style
Number Description Photo
None
(Standard) See Table 3 Black Cover
Screw Terminals
S See Table 3 Black Cover
Stud & Nut Terminals
C See Table 3 Clear Cover
Screw Terminals
CS See Table 3 Clear Cover
Stud & Nut Terminals
R, RS For FT-19R Applications only
(See DB 41-078)
DB 41-077
Page 4
Ordering Information
• FT-1 Switches may be ordered by style number.
Table 3 starting on page 9 provides a compre-
hensive selection guide of existing styles.
• An FT-1 Switch with black cover and screw ter-
minals will be supplied when ordering the stan-
dard style number as listed on Table 3,
(Example: 129A501G01). An optional clear cover
will be supplied instead of the black cover by
using style number prefix “C”, (Example:
C129A501G01).
• Optional stud and nut terminals will be supplied
by using style number prefix “S”, (Example:
S129A501G01).
• Optional clear cover and optional stud and nut
terminals will be supplied by using style number
prefix “CS”, (Example: CS129A501G01).
• For FT-1 Switch requirements that cannot be
matched up to an existing style number on Table
3, it is recommended that the customer find a
style number that comes closest to meeting the
necessary requirements. Enter description only
to order the new FT-1 Switch as similar-to (exist-
ing style) except stating the different characteris-
tic(s) required.
• Customers may also place the order by providing
a complete Switch Arrangement definition,
Example: P P P C-C C-C C-C P. (See Switch
Arrangement section below.)
Switch Arrangement
• FT-1 Switches are available in any combination
of 1 to 10 poles.
• Pole positions are identified from left to right on
the front view of the switch by the letters “A”
through “J”.
• Pole designations are used to identify each type
of pole. To develop a complete Switch Arrange-
ment that describes a unique FT-1 Switch,
arrange pole designation sequentially from left to
right (A-J).
• Every pole position has to be defined by a “Pole
Designation” (“X” is used to designate empty
pole positions).
• Some current Pole Designations span more than
one pole position.
• A space is the delimiter between Pole Designa-
tions, (Example: P P P C-C C-C C-C P is the
complete Switch Arrangement definition for style
number 129A514G01).
• See Tables 1 & 2 for a complete listing of avail-
able Pole Designations, and their definitions.
Note: All switch arrangements developed or ordered
should be checked for adequate current trans-
former shorting when applied to current trans-
former circuits.
Terminals
• All required terminal hardware is supplied with
each FT-1 Switch.
• Screw Terminals are provided with standard FT-1
Switch styles. They require customer connec-
tions be made with a hex washer head screw.
(See Fig. 5)
• Stud and Nut Terminals are an optional feature.
Customer connections are made with two wash-
ers and a nut. (See Fig. 5) A special nut driver
can be purchased from ABB to connect to stud
terminals. (See “ACCESSORIES – ORDERING
INFORMATION” on page 8)
Figure 5. Standard and Optional Terminals
DB 41-077
Page 5
Table 1 - CURRENT POLES
POLE
DESIGNATIONS
HANDLE
COLOR
SCHEMATIC
DIAGRAM DESCRIPTION
C†
† = Current Poles C and R are special Pole Designations developed for test circuits. They are not intended for use in current transformer circuits.
BLACK
NON-SHORTING, WITH TEST JACK
R†RED
C-C ‡
‡ = Typical Pole Designations
BLACK
CURRENT, SHORTING, WITH CURRENT TEST JACK
R-R RED
C-A BLACK CURRENT, SHORTING, WITHOUT CURRENT TEST JACK
C-B BLACK CURRENT, SHORTING, WITHOUT CURRENT TEST JACK,
WITHOUT JAW OR BLADE AT “B”
C-D BLACK CURRENT, SHORTING, WITH CURRENT TEST JACK,
WITHOUT BLADE AT “D”
C-E BLACK CURRENT, SHORTING, WITHOUT CURRENT TEST JACK
WITH SHORTING BLADE ALSO AT “E”
C-C-C ††
†† = Also available as C-C-A, C-C-B. . . up to C-C-C-C
BLACK CURRENT, SHORTING, WITH CURRENT TEST JACK (2
POSITION SHORTING SPRING)
B
D
E
Table 2 - POTENTIAL POLES
POLE
DESIGNATIONS
HANDLE
COLOR
SCHEMATIC
DIAGRAM DESCRIPTION
P ‡BLACK
POTENTIAL, NON-SHORTING BLADE
T ‡RED
G GREEN
Y YELLOW
ZBLUE
WWHITE
O ORANGE
L BLACK POTENTIAL, LONG BLADE
S---
--- FIXED SHORTING STRAP
J---
--- CURRENT JAW, NO BLADE
N---
--- TERMINAL STUD IN BLADE LOCATION, NO JAW
U---
--- STUD AND TEST CLIP
X---
--- EMPTY POLE POSITION
‡ = Typical Pole Designations
DB 41-077
Page 6
TEST PLUGS
In-Service Series Test Plug
When using an In-Service Series Test Plug for current
measurements, connections from the Test Plug to the
measuring instruments must be made before inserting
the Test Plug in place.
The “In-Service” Series Test Plug with a maximum of
10 positions is designed to match the pole configura-
tions of specific styles of FT Flexitest devices (either
FT-1 Switches or FT case relays). Not every switch
or relay pole configuration is suitable to accept an In-
Service Series Test Plug, but many FT-1 Switch
styles do have one already available, See Table 3,
page 9, “IN-SERVICE TEST PLUG”.
This Test Plug is typically used to connect devices
measuring the currents and voltages being applied to
the switchboard relays, meters and instruments with-
out interrupting or short-circuiting the circuit. Only the
current test switches with the current jack must be
opened before inserting the Series Test Plug.
Individual Current Circuit Test Plug
When using an Individual Current Circuit Test Plug for
current measurements, connections from the Test
Plug to the measuring instruments must be made
before inserting the Test Plug in place
The Individual Current Circuit Test Plug is an amme-
ter type device used to measure current. It can be
inserted in the current test jack of FT Flexitest
devices after opening the knife blade switch. This
plug consists of two conducting strips separated by
an insulating strip. The ammeter is connected to
these strips by terminal screws and leads carried out
through holes in the back of the insulated handle.
(See Figs. 7 and 8)
Separate Source Test Plug
Provision is made only on current poles with shorting
springs to automatically short-circuit current trans-
former circuits when the knife switches are opened
prior to inserting the Test Plug.
The 10 Position Separate Source Test Plug isolates
the external connections from the relay or equipment
under test. This test plug provides quick circuit test-
ing, by fitting into the stationary contact jaws of any
Flexitest Type FT Case or FT-1 Switch. L-shaped test
blades assure quick, accurate alignment between the
Test Plug and the stationary contact jaws.
WARNING
Figure 6. In-Service Series Test Plug
WARNING
Figure 7. Individual Current Circuit Test Plug
Figure 8. Individual Current Plug inserted
into Flexitest Case
WARNING
Figure 9. Separate Source Test Plug - 10 Position
DB 41-077
Page 7
This Test Plug connects the relay inputs and outputs
to a set of binding posts on the top of the Test Plug,
and completely isolates the relay circuits from the
external connections (ct, pt, trip, etc.) by means of an
insulated barrier along the bottom of the plug. The
external test circuits can then be connected to these
binding posts, which are staggered for easy accessi-
bility.
Before inserting the Separate Source Test Plug, all
switch- blades must be placed in the full open posi-
tion. In a Flexitest Type FT Case, the plug is inserted
in the bottom switch jaws with the binding posts up
and in the top test switch jaws with the binding posts
down. (See Fig. 10)
Figure 10. Separate source test plug shown
inserted in FT-Case
(Bottom Switch Jaws)
TEST PLUGS – ORDERING INFORMATION
Description Style Number Photo
In-Service Series Test Plug
(Order to match Flexitest FT relay
case or FT-1 Switch arrangement)
See Table 3
Individual Current Circuit Test Plug
(Leads not included) 7B4618G04
Separate Source Test Plug
(10 position) 1164046
DB 41-077
Page 8
ACCESSORIES – ORDERING INFORMATION
Description Style Number Photo
Clear Cover 9676A32G01
Black Cover 128A973G01
Description Style Number Photo
Nut Driver
(For Stud & Nut Terminals only, Prefix “S”) 877A821G01
Description Style Number Photo
Interlocking Bar 2 Position 1270547
Interlocking Bar 3 Position 1164048
Interlocking Bar 4 Position 02C9834G03
Interlocking Bar 5 Position 02C9834G04
Interlocking Bar 6 Position 02C9834G06
Interlocking Bar 10 Position 02C9834G05
DB 41-077
Page 9
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
1
Pole
A B C D E F G H I J
1 0 P . . . . . . . . . 774B542G09 129A062G10
2
Pole
A B C D E F G H I J
2 0 . . . . . . . P . P 291B954G15 129A062G10
2 0 . . . P . . P . . . 129A534G01 129A062G10
2 0 P P . . . . . . . . 291B954G13 129A062G10
2 0 T . . . . . . . . T 291B954G14 129A062G10
2 0 T T . . . . . . . . 291B954G16 129A062G10
2 0 Z Z . . . . . . . . 9676A38G01 129A062G10
0 2 . . . . . . . C-C . 291B954G12 129A062G01
0 2 . . . . . C-C . . . 129A531G01 129A062G08
0 2 . C-C . . . . . . . 498A026G01 129A062G07
3
Pole
A B C D E F G H I J
3 0 . . . . . . . P P P 716B871G11 129A062G10
3 0 . . . P P P . . . . 716B871G09 129A062G10
3 0 P . . . P . . . . P 716B871G12 129A062G10
1 2 C-C . . . . . . . T 9663A78G01 (1)
0 3 . . . C C C . . . . 716B871G10 (1)
4
Pole
A B C D E F G H I J
4 0 . . . T P T P . . . 9676A26G01 129A062G10
4 0 . . . T T T P . . . 9676A27G01 129A062G10
4 0 . . P P P P . . . . 129A524G01 129A062G10
4 0 . . T . T . T . T . 291B956G31 129A062G10
4 0 . . T T T T . . . . 1586C39G01 129A062G10
4 0 . . T T T T . . . . 291B956G32 129A062G10
4 0 P . . . . . . P P P 129A506G01 129A062G10
4 0 P . . . . . . P P P 3501A86G06 129A062G10
4 0 P . . P . . P . . P 291B956G24 129A062G10
4 0 P . . P P P . . . . 291B956G25 129A062G10
4 0 P P . . . . . . P P 129A538G01 129A062G10
4 0 P P P . . . . . . P 498A022G01 129A062G10
4 0 P P P . . . . . . T 9663A80G01 129A062G10
4 0 P P P P . . . . . . 9672A73G01 129A062G10
4 0 T . . . . . . P P T 763A166G01 129A062G10
4 0 T . . . . . . T T T 498A012G01 129A062G10
4 0 T . T . . . . T . T 862A584G01 129A062G10
4 0 T T T . . . . . . T 1586C39G02 129A062G10
3 1 P P C . . . . . . P 291B956G26 (1)
2 2 P . . . . . . C-C P 129A507G01 129A062G01
2 2 P P . . . . . C-C . 291B956G18 129A062G01
2 2 P P C-C . . . . . . 291B956G30 (1)
2 2 T . . . . . . C-C P 9671A05G01 129A062G01
2 2 T T . . . . . C-C . 9676A36G01 129A062G01
1 3 . . . C C C . . . P 291B956G28 (1)
0 4 . . . . . C-C C-C . 291B956G13 129A062G02
0 4 . C C C C . . . . . 291B956G23 (1)
0 4 . C-C . . C-C . . . 763A109G01 (1)
0 4 . C-C C-C . . . . . 498A027G01 129A062G09
0 4 C C C C . . . . . . 291B956G27 (1)
0 4 C-C C-C . . . . . . 291B956G29 (1)
0 4 C-C-C-C . . . . . . 837A087G01 (1)
5
Pole
A B C D E F G H I J
5 0 P P . . . . . P P P 129A505G01 129A062G10
5 0 P P P P P . . . . . 291B957G15 129A062G10
5 0 T T . . . . . T T T 9676A37G01 129A062G10
3 2 P C-C P . . . . . P 129A508G01 129A062G07
3 2 P P . . . . . C-C P 129A533G01 129A062G01
3 2 P P . . C-C . . . P 291B957G17 (1)
3 2 P P P C-C . . . . . 291B957G16 (1)
3 2 T P . . . . . C-C T 291B957G09 129A062G01
1 4 . C C . C . C . P . 498A002G01 (1)
0 5 C . C . C . C . C . 129A555G01 (1)
6
Pole
A B C D E F G H I J
6 0 . . . P P P P P P . 188A416G01 129A062G10
6 0 P P . . . . P P P P 837A889G01 129A062G10
6 0 P P . . P P . . P P 629A568G01 129A062G10
6 0 P P P . . . . P P P 129A504G01 129A062G10
6 0 P P P P . . . . P P 129A550G01 129A062G10
6 0 P P P P P P . . . . 291B958G25 129A062G10
6 0 P P T . . . . T T T 1586C40G01 129A062G10
6 0 T T T T . . . . T T 291B958G33 129A062G10
4 2 P . . . . P P C-C P 129A509G01 129A062G01
4 2 P P P P R-R . . . . 9667A02G01 (1)
4 2 T T . . . P P . C-C 9672A03G01 (1)
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
Table 3
FT-1 Switch Selection Guide
DB 41-077
Page 10
3 3 P P . . . . C C C P 291B958G24 (1)
3 3 P P . . . . C C-C P 129A543G01 129A062G02
3 3 P P P . . . C C C . 9676A19G01 (1)
2 4 . . . C-C C-C P P . 291B958G30 129A062G12
2 4 P . . . . C-C C-C P 129A537G01 129A062G02
2 4 P . . . . P C-C C-C 291B958G31 (1)
2 4 P . . C C C C . . P 291B958G27 (1)
0 6 . . . . C-C C-C C-C 9672A72G01 (1)
0 6 . . . C C C C C C . 188A454G01 (1)
0 6 . . . C-A C-A C-A . 291B958G26 (1)
0 6 . . . C-A C-A C-C . 291B958G29 (1)
0 6 . . . C-B C-B C-B . 498A017G01 (1)
0 6 . . . C-C C-C C-C . 129A516G01 292B319G23
0 6 . . . R-R R-R R-R . 291B958G28 292B319G23
0 6 . . C C C C C C . . 129A523G01 (1)
0 6 . C-C . C-C . C-C . 498A014G01 (1)
0 6 C . C . C . . C C C 188A304G01 (1)
0 6 C-C C-C C-C . . . . 9660A97G01 (1)
7
Pole
A B C D E F G H I J
7 0 . P P P P P P P . . 129A526G01 129A062G10
7 0 P . . P P P . P P P 129A503G01 129A062G10
7 0 P . . P P P P P . P 291B959G19 129A062G10
7 0 P P P . . . P P P P 129A547G01 129A062G10
7 0 P P P . . . P P P P 291B959G30 129A062G10
7 0 P P P P . . P P P . 498A013G01 129A062G10
7 0 P P P P P P . . . T 9663A79G01 129A062G10
7 0 P P P P P P P . . . 291B959G28 129A062G10
7 0 T . . P P P . P P T 763A168G01 129A062G10
7 0 T T P . . . P P P P 291B959G33 129A062G10
5 2 P C-C P . . . P P P 188A261G01 129A062G07
5 2 P P . . . C-C P P P 129A510G01 129A062G08
5 2 P P P P P . . . C-C 291B959G27 (1)
5 2 P P P P P . . C-C . 291B959G18 129A062G01
5 2 T P . . . P P C-C T 188A622G01 129A062G01
5 2 T T . . . R-R T T T 9667A17G01 129A062G08
4 3 P P C . C . C . P P 188A477G01 292B319G24
3 4 P C C . C . C . P P 188A618G01 (1)
3 4 P P . . . C-C C-C P 129A511G01 129A062G02
3 4 P P P . . C-C C-C . 498A008G01 129A062G02
3 4 T C-C T C-C T . . . 291B959G26 (1)
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
3 4 T T T . . . C C C C 291B959G32 (1)
3 4 T T T . . C-C C-C . 291B959G20 129A062G02
1 6 . . . C-C C-C C-C T 498A003G01 292B319G23
1 6 C-C C-C C-C . . . T 9663A77G01 (1)
1 6 P C-C C-B C-B . . . 129A540G01 (1)
0 7 . . C C-C C-C C-C . 291B959G29 292B319G22
0 7 C-C C-C C-C C . . . 9676A24G01 (1)
8
Pole
A B C D E F G H I J
8 0 . P P P P P P P P . 291B960G37 129A062G10
8 0 P . . P P P P P P P 129A549G01 129A062G10
8 0 P P P . . P P P P P 719B591G09 129A062G10
8 0 P P P . P P . P P P 291B960G39 129A062G10
8 0 P P P P . . P P P P 129A502G01 129A062G10
8 0 P P P P . . P P P T 129A536G01 129A062G10
8 0 P P P P P . . P P P 129A546G01 129A062G10
8 0 P P P P P . . P T T 719B591G14 129A062G10
8 0 P P P P P P P P . . 719B591G10 129A062G10
8 0 T T T T T . . T T T 719B591G12 129A062G10
6 2 P P P . . C-C P P P 291B960G26 129A062G08
6 2 P P P P P . . C-C P 188A632G01 129A062G01
6 2 P P P P P P . . C-C 291B960G36 (1)
6 2 T . . P P P P C-C T 763A167G01 129A062G01
4 4 . . P P P C-C C-C P 629A315G01 129A062G02
4 4 C-C C-C . . P P P P 719B591G13 (1)
4 4 C-C C-C . P P P P . 719B591G11 (1)
4 4 P C-C P . . P C-C P 129A512G01 129A062G06
4 4 P P . C C C C . P P 498A016G01 (1)
4 4 P P . C-C C-C . P P 129A530G01 129A062G12
4 4 P P P P . C-C C-C . 129A544G01 129A062G02
3 5 T P . . C C-C C-C T 291B960G27 292B319G23
2 6 . C C C C C C . P P 9667A21G01 (1)
2 6 . C-C C-C C-C . P P 129A521G01 129A062G09
2 6 . C-C C-C C-C P P . 129A525G01 129A062G09
2 6 C-B C-B C-B . . P P 291B960G38 (1)
2 6 T T . . C-C C-C C-C 9668A69G01 (1)
1 7 C . . C-B C-B C-B P 498A018G01 (1)
1 7 P . C C-C C-C C-C . 498A019G01 292B319G22
0 8 . C C C C C C C C . 498A004G01 (1)
0 8 . C-C C-C C-C C-C . 129A517G01 292B319G22
0 8 . C-C-C-B . C-C-C-B 498A029G01 (1)
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
Table 3
FT-1 Switch Selection Guide (continued)
DB 41-077
Page 11
0 8 . C-C-C-B C-C-C-B . 291B960G20 (1)
0 8 . C-C-C-C C-C-C-C . 291B960G33 (1)
0 8 . R-R R-R R-R R-R . 9660A84G01 292B319G22
0 8 C C C C . . C C C C 188A229G01 (1)
0 8 C-C . . C-C C-C C-C 9672A10G01 (1)
0 8 C-C C-C C-C . . C-C 1586C41G01 (1)
0 8 C-C-C-A C-C-C-B . . 837A099G01 (1)
0 8 C-C-C-B . . C-C-C-B 498A025G01 (1)
0 8 C-C-C-C C-C-C-B . . 837A098G01 (1)
9
Pole
A B C D E F G H I J
9 0 P P . P P P P P P P 129A548G01 129A062G10
9 0 P P P P . P P P P P 129A551G01 129A062G10
6 3 P P P C C C P P P . 291B961G23 (1)
6 3 P P P P P . C C C P 291B961G30 (1)
6 3 P P P P P . C C-C P 129A552G01 129A062G02
6 3 P P P P P . C-C C P 629A483G01 (1)
5 4 P P P P . C-C C-C P 188A633G01 129A062G02
5 4 P P P P P . C-C C-C 291B961G22 (1)
5 4 P P P P P C C C C . 291B961G28 (1)
5 4 P P P P P C-C C-C . 129A545G01 129A062G02
4 5 P P P P . C C-C-C-B 498A028G01 (1)
3 6 . T C-C T C-C T C-C 9663A34G01 (1)
3 6 P C-C P C-C P C-C . 861A551G01 (1)
3 6 P P . C-C C-C C-C P 129A515G01 292B319G23
3 6 P P P . C-C C-C-C-B 498A024G01 (1)
3 6 P P P C-C C-C . C C 291B961G27 (1)
3 6 P P P C-C C-C C-C . 291B961G29 292B319G23
3 6 T T . C-C C-C C-C T 9663A74G01 292B319G23
3 6 T T T C-C C-C C-C N 291B961G25 (1)
2 7 P P . C-B C-B C-B S 291B961G26 (1)
1 8 . C-C C-C C-C C-C T 498A009G01 292B319G22
1 8 T . C-C C-C C-C C-C 9668A70G01 (1)
0 9 . C C-B C C-B C C-B 498A023G01 (1)
0 9 C C-C C-C C-C C-C . 3501A86G05 (1)
0 9 C C-C C-C C-C C-C . 498A021G01 (1)
0 9 C-C C-C C-C C . C-C 9676A25G01 (1)
10
Pole
A B C D E F G H I J
10 0 O O O O O O O O O O 9672A97G01 129A062G10
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
10 0 P P P P P P P P P P 129A501G01 129A062G10
10 0 P P P P P P P P P P 3501A86G02 129A062G10
10 0 P P P P P P P P P T 774B430G19 129A062G10
10 0 P P P P P P P P T T 1586C42G23 129A062G10
10 0 P P P P P P P P Z Z 9671A94G01 129A062G10
10 0 P P P P P P P T T P 9672A77G01 129A062G10
10 0 P P P P P P P T T T 1586C42G25 129A062G10
10 0 P P P P P P T P P P 1586C42G29 129A062G10
10 0 P P P P P P T P P T 9676A08G01 129A062G10
10 0 P P P P P P T P T P 9672A75G01 129A062G10
10 0 P P P P P P T P T T 1586C42G30 129A062G10
10 0 P P P P P P T T T P 9672A98G01 129A062G10
10 0 P P P P P P T T T T 9672A71G01 129A062G10
10 0 P P P P P P Z Z Z Z 9671A95G01 129A062G10
10 0 P P P P P T T T T T 1586C42G24 129A062G10
10 0 P P P P P T T T T T 670B197G21 129A062G10
10 0 P P P P T P P T P P 9667A06G01 129A062G10
10 0 P P P P T P T T T T 1586C42G28 129A062G10
10 0 P P P P T T T P P P 9676A14G01 129A062G10
10 0 P P P P T T T T T T 670B197G26 129A062G10
10 0 P P P T T T T T T P 9672A74G01 129A062G10
10 0 P P T P T P P P P P 1586C42G15 129A062G10
10 0 P P T T T T T T T T 670B197G24 129A062G10
10 0 P T P P T P P T P P 9668A27G01 129A062G10
10 0 P T P P T T P P T P 9667A03G01 129A062G10
10 0 P T P T P P T P T P 9670A98G01 129A062G10
10 0 P T T P P P P P P P 9671A69G01 129A062G10
10 0 T P P P P P P P P P 1586C42G31 129A062G10
10 0 T P P P P P P P P T 670B197G36 129A062G10
10 0 T P P P P T P P P P 9667A93G01 129A062G10
10 0 T P P T P P P P P P 9670A35G01 129A062G10
10 0 T P P T P P T P P P 9670A34G01 129A062G10
10 0 T P P T P P T P P T 9670A97G01 129A062G10
10 0 T P T P P P P P P P 1586C42G06 129A062G10
10 0 T P T P P P P T P T 1586C42G46 129A062G10
10 0 T P T P T P T P T P 9668A54G01 129A062G10
10 0 T P T T T P T P T P 9676A34G01 129A062G10
10 0 T T P P P P P P P P 1586C42G45 129A062G10
10 0 T T P P P P P P P T 9667A78G01 129A062G10
10 0 T T P P P P P P T T 1586C42G41 129A062G10
10 0 T T P P P P T T P P 9660A92G01 129A062G10
10 0 T T P P P T T P P P 9671A68G01 129A062G10
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
Table 3
FT-1 Switch Selection Guide (continued)
DB 41-077
Page 12
10 0 T T P P T T P P T T 9667A86G01 129A062G10
10 0 T T T P P P P T T T 9663A25G01 129A062G10
10 0 T T T T P P P P P P 670B197G31 129A062G10
10 0 T T T T T P P P P P 9671A13G01 129A062G10
10 0 T T T T T T P P P P 716B562G10 129A062G10
10 0 T T T T T T T T P P 1586C42G44 129A062G10
10 0 T T T T T T T T T T 129A539G01 129A062G10
10 0 T T T T T T T T T T 3501A86G04 129A062G10
10 0 T T T T T T Z Z Z Z 9672A02G01 129A062G10
10 0 Z Z Y Y Y Y Y Y G W 9663A41G01 129A062G10
9 1 C P P P P P P P P P 498A011G01 (1)
9 1 C T T T T T T T T T 1586C42G39 (1)
8 2 C-A P P P P P P P P 714B325G31 (1)
8 2 C-C P P P P P P P P 837A665G01 (1)
8 2 C-C T T T T T T T T 1586C42G20 (1)
8 2 P C C P P P T P P P 1586C42G32 (1)
8 2 P P C-C P P P P P P 670B197G33 (1)
8 2 P P P C-C P P P P P 716B562G21 (1)
8 2 P P P P P P C-C P P 9663A60G01 (1)
8 2 P P P P P P P C-C P 129A542G01 129A062G01
8 2 P P P P P P P C-C T 1586C42G38 129A062G01
8 2 P P P P P P P P C-A 714B325G30 (1)
8 2 P P P P P P P P C-C 716B562G26 (1)
8 2 P P P P P P P R-R P 9676A15G01 129A062G01
8 2 P P P P T T P C-C P 716B562G35 129A062G01
8 2 T P P P P P P C-C P 9672A83G01 129A062G01
8 2 T P P P P P P C-C T 1586C42G26 129A062G01
8 2 T T C-C P G Y W Z O 9676A04G01 (1)
8 2 T T T T C-C T T T T 1586C42G33 (1)
8 2 T T T T T T T C-C T 1586C42G47 129A062G01
8 2 T T T T T T T R-R T 670B197G17 129A062G01
8 2 T T T T T T T T C-C 9672A89G01 (1)
7 3 P P P P P P C C-C P 129A553G01 (1)
6 4 C C P P P P P P C C 716B562G20 (1)
6 4 C-A C-A P P P P P P 714B325G27 (1)
6 4 C-C C-C P P P P P P 498A015G01 (1)
6 4 C-C C-C P P P P P T 1586C42G13 (1)
6 4 C-C C-C P P P P T T 9672A80G01 (1)
6 4 C-C C-C P P T T T T 9676A06G01 (1)
6 4 C-C C-C T T T T T T 9663A31G01 (1)
6 4 C-C P P C-C P P P P 716B562G17 (1)
6 4 C-C P P P P C-C P P 716B562G19 (1)
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
6 4 C-C P P P P P P C-C 877A077G01 (1)
6 4 C-C-C-C P P P P P T 1586C42G11 (1)
6 4 C-C-C-C P P P P T T 1586C42G12 (1)
6 4 C-C-C-C T T T T T T 9672A99G01 (1)
6 4 C-C-C-E T T T T T T 9672A87G01 (1)
6 4 P C-C C-C P P P P P 716B562G36 (1)
6 4 P C-C P P P P C-C P 129A513G01 129A062G06
6 4 P C-C P P P P C-C T 629A735G01 129A062G06
6 4 P C-C P P P T C-C P 1586C42G22 129A062G06
6 4 P C-C P P T T C-C T 1586C42G27 129A062G06
6 4 P C-C-C-C P P P P P 836A867G01 (1)
6 4 P P C-A C-A P P P P 714B325G28 (1)
6 4 P P C-C P P C-C P P 716B562G15 (1)
6 4 P P P C-C P P C-C P 129A520G01 129A062G05
6 4 P P P P C-A C-A P P 714B325G29 (1)
6 4 P P P P C-C C-C P P 670B197G19 (1)
6 4 P P P P C-C P P C-C 670B197G34 (1)
6 4 P P P P P C-C C-C P 129A532G01 129A062G02
6 4 P P P P P P C-A C-A 714B325G16 (1)
6 4 P P P P P P C-C-C-A 714B325G18 (1)
6 4 P P P P P P C-C-C-C 670B197G28 (1)
6 4 P P T P P C-C C-C P 9676A09G01 129A062G02
6 4 P P T P T P C-C-C-C 1586C42G14 (1)
6 4 R-R R-R T T T T T T 670B197G25 (1)
6 4 T P C P C P C P C P 670B197G37 292B319G22
6 4 T P P C-C P P C-C P 9660A91G01 129A062G05
6 4 T P P C-C T P P C-C 9676A05G01 (1)
6 4 T P P P P C-C C-C T 849A307G01 (1)
6 4 T T T R-R T T R-R T 861A670G01 129A062G05
5 5 P P C C-C P C-C P P 670B197G20 (1)
4 6 C C C C C C P P P P 774B430G18 (1)
4 6 C C-C C-C C T T T T 1586C42G21 (1)
4 6 C-C C-C C-C P P P P 774B430G20 (1)
4 6 C-C C-C C-C P P P T 1586C42G36 (1)
4 6 C-C C-C C-C P P T T 9671A70G01 (1)
4 6 C-C C-C C-C T T T T 774B430G24 (1)
4 6 C-C P P C-C P P C-C 716B562G16 (1)
4 6 C-C T P C-C-C-C P T 1586C42G10 (1)
4 6 C-C-C-C C-C P P P P 774B430G09 (1)
4 6 L L L L C-E C-E C-E 9660A96G01 (1)
4 6 P C-C C-C C-C P P P 716B562G37 129A062G09
4 6 P C-C C-C C-C P P P 774B430G10 129A062G09
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
Table 3
FT-1 Switch Selection Guide (continued)
DB 41-077
Page 13
4 6 P C-C P C-C P C-C P 129A528G01 (1)
4 6 P P C C C C C C P P 774B430G21 (1)
4 6 P P C C-C C-C C P P 714B325G19 (1)
4 6 P P C-C P P C-C C-C 716B562G18 (1)
4 6 P P P C C C C C C P 9670A05G01 (1)
4 6 P P P C-A P C-C-C-A 714B325G17 (1)
4 6 P P P C-C C-C C-C P 129A514G01 292B319G23
4 6 P P P C-C C-C C-C T 670B197G32 292B319G23
4 6 P P P C-C C-C C-C Z 9671A93G01 292B319G23
4 6 P P P C-C C-R C-R T 1586C42G34 292B319G23
4 6 P P P C-C P C-C-C-C 670B197G27 (1)
4 6 P P P P C-A C-A C-A 714B325G24 (1)
4 6 P P P P C-C C-C C-C 1586C42G05 (1)
4 6 P P P P C-C C-C C-C 670B197G18 (1)
4 6 P P P P C-C-C C-C-C 1586C42G37 (1)
4 6 P P P P P P C-C C-C 670B197G23 (1)
4 6 P P P P R-R R-R R-R 9660A85G01 (1)
4 6 P P P R-R R-R R-R P 1586C42G03 292B319G23
4 6 P P T C-C C-C C-C T 1586C42G48 292B319G23
4 6 P R-R P R-R P R-R P 9676A17G01 (1)
4 6 R-B R-B R-B T T T T 714B325G20 (1)
4 6 T C-C T C-C T C-C T 188A523G01 (1)
4 6 T P C-C C-C C-C P P 1586C42G18 (1)
4 6 T T C-C C-C C-C T T 9667A22G01 (1)
4 6 T T P C-C C-C C-C T 9667A80G01 292B319G23
4 6 T T P P C-C C-C C-C 9672A90G01 (1)
4 6 T T T C-C C-C C-C P 9667A69G01 292B319G23
4 6 T T T C-C C-C C-C T 714B325G32 292B319G23
4 6 T T T C-C C-C C-C W 9676A35G01 292B319G23
4 6 T T T R-R R-R R-R T 774B430G13 292B319G23
4 6 T T T T C-C C-C C-C 498A010G01 (1)
4 6 T T T T C-C C-C-C-C 9676A10G01 (1)
4 6 Z Z Z C-C C-C C-C Z 9672A01G01 292B319G23
3 3 P P P U C U C U C U 1485B70G09 (1)
3 6 L L L U C-E C-E C-E 1485B70G10 (1)
3 6 P P P C-B C-B C-B S 716B562G30 (1)
3 6 P P P S C-C C-C C-C 774B430G16 (1)
3 6 T T T C-C C-C C-C U 1485B70G11 (1)
3 7 C-C C-C C-C C P P P 1586C42G43 (1)
3 7 C-C P C-C P C-C P C 714B325G22 (1)
3 7 P P C C-C C C-C C P 716B562G12 (1)
3 7 P P C C-C C-C C-C P 129A535G01 292B319G22
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
3 7 P P C C-C C-C C-C P 3501A86G01 292B319G22
3 7 P P C C-C C-C C-C T 9672A86G01 292B319G22
3 7 P P P C C C C C C C 1586C42G17 (1)
3 7 P P P C C-C C-C C-C 9671A26G01 (1)
3 7 P P P C-C C-C C-C C 1586C42G19 (1)
3 7 P P P C-C C-C C-C C 714B325G11 (1)
3 7 P P P C-C C-C C-C C 714B325G25 (1)
3 7 P T C C-C C-C C-C T 670B197G22 292B319G22
3 7 T T C C-C C-C C-C T 670B197G35 292B319G22
3 7 T T T C-C C-C C-C C 9663A59G01 (1)
2 8 C-A P P C C-C C C-C 714B325G21 (1)
2 8 C-C C-C C-C C-C P P 837A407G01 (1)
2 8 C-C C-C C-C C-C P T 9672A95G01 (1)
2 8 C-C C-C C-C C-C T P 9676A11G01 (1)
2 8 C-C C-C C-C C-C T T 774B430G22 (1)
2 8 C-C C-C P C C C C P 837A664G01 (1)
2 8 C-C P P C C-C C C-C 716B562G24 (1)
2 8 C-C T C-C C-C C-C T 9667A68G01 (1)
2 8 C-C-C-B C-C-C-B P P 498A031G01 (1)
2 8 C-C-C-C C C C-C P P 716B562G38 (1)
2 8 C-C-C-C C-C C-C P P 714B325G15 (1)
2 8 C-C-C-C C-C-C-B P P 837A101G01 (1)
2 8 C-C-C-C C-C-C-B T T 1586C42G42 (1)
2 8 C-C-C-C C-C-C-C P P 774B430G11 (1)
2 8 C-C-C-C C-C-C-C P T 1586C42G09 (1)
2 8 C-C-C-C C-C-C-C T P 9671A22G01 (1)
2 8 C-C-C-C P C-C-C-C P 9672A94G01 (1)
2 8 C-C-C-C T C-C-C-C T 9676A01G01 (1)
2 8 C-C-C-D C-C-C-B P P 498A032G01 (1)
2 8 C-C-C-D C-C-C-D P P 714B325G13 (1)
2 8 C-C-C-D C-C-C-D P P 774B430G12 (1)
2 8 C-C-C-E C-C-C-E T T 9672A23G01 (1)
2 8 C-C-C-E T C-C-C-E T 9672A88G01 (1)
2 8 C-C-E C C-C C-C P P 716B562G39 (1)
2 8 P C C C C C C C C P 129A519G01 (1)
2 8 P C C C C P C C C C 716B562G27 (1)
2 8 P C-C C-C C-C C-C P 129A518G01 292B319G22
2 8 P C-C C-C C-C C-C P 3501A86G03 292B319G22
2 8 P C-C C-C C-C C-C T 1586C42G08 292B319G22
2 8 P C-C C-C C-C C-C T 837A616G01 292B319G22
2 8 P P C-C C-C C-C C-C 716B562G25 (1)
2 8 R-B R-B R-B R-B T T 714B325G12 (1)
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
Table 3
FT-1 Switch Selection Guide (continued)
DB 41-077
Page 14
2 8 R-C R-C R-C R-C T T 716B562G11 (1)
2 8 T C C C C C C C C P 9671A04G01 (1)
2 8 T C C C C C C C C T 9671A12G01 (1)
2 8 T C C C-C C-C C-C T 876A157G01 (1)
2 8 T C-C C-C C-C C-C P 670B197G38 292B319G22
2 8 T C-C C-C C-C C-C T 849A513G01 292B319G22
2 8 T R-R R-R R-R R-R T 716B562G28 292B319G22
2 8 T T C-C C-C C-C C-C 1586C42G16 (1)
2 8 T T C-C C-C C-C C-C 774B430G28 (1)
1 9 C C C C C C C C C P 129A541G01 (1)
1 9 C C C C C C C C C T 188A286G01 (1)
1 9 C C C C-C C-C C-C P 670B197G16 (1)
1 9 C-C C-C C-C C C-C P 1586C42G40 (1)
1 9 C-C C-C C-C C C-C T 1586C42G35 (1)
1 9 P C-C C C-C C C-C C 714B325G23 (1)
1 9 P C-C-C-B C C-C-C-B 498A030G01 (1)
0 10 C C C C C C C C C C 129A529G01 (1)
0 10 C C C C C C C C C C 774B430G17 (1)
0 10 C C C C-C C-C C-C C 9676A18G01 (1)
0 10 C C-B C C-B C C-B C 716B562G14 (1)
0 10 C C-C C-C C-C C-C C 716B562G13 (1)
0 10 C-C C-C C C C-C C-C 714B325G26 (1)
0 10 C-C C-C C-C C-C C C 774B430G15 (1)
0 10 C-C C-C C-C C-C C-C 498A020G01 (1)
0 10 C-C C-C C-C C-C R R 9676A23G01 (1)
0 10 C-C C-C C-C C-C-C-C 9676A20G01 (1)
0 10 C-C-C-A C-C C-C C-A 774B430G14 (1)
0 10 C-C-C-A C-C-C-A C-C 1586C42G02 (1)
0 10 C-C-C-B C-C C-C-C-B 498A001G01 (1)
0 10 C-C-C-C C-C C-C C-C 714B325G14 (1)
0 10 C-C-C-C C-C-C-C C-C 774B430G23 (1)
0 10 C-D C-D C-D C-D C-D 9676A07G01 (1)
0 10 C-E C-E C-E C-E C-E 714B325G09 (1)
0 10 J J J J J J J J J J 291B962G31 (1)
0 10 R-B R-B R-B R-B R-B 714B325G10 (1)
0 10 R-C R-C R-C R-C R-C 716B562G09 (1)
0 10 R-R R-R R-R R-R R-R 9663A33G01 (1)
POTENTIAL
CURRENT
A B C D E F G H I J
STANDARD
STYLE
IN-SERVICE
TEST PLUG
Table 3
FT-1 Switch Selection Guide (continued)
(1) When a multi-position In-Service Test Plug is not available,
then the individual current circuit test plug can be used.
DB 41-077
Page 15
Figure 11. Typical FT-1 Switch Connection Schematic
9666A11 SUB 2
DB 41-077
Page 16
ABB Inc.
Coral Springs, FL
ABB
129A500 SUB 5
Figure 12. FT-1 Switch, Outline and Drilling Plan, with Standard Black Cover or Optional Clear Cover
Tel: 954-752-6700
Fax: 954-345-2620
800-523-2620
ABB Inc.
Allentown, PA
Tel: 610-395-7333
Fax: 610-395-1055
800-634-6005
Visit our website at www.abb.com
