FD3125 EATON CUTLER HAMMER, FD3125 Datasheet - Page 254

• Manufacturer Part Number: FD3125
• Description: CIRCUIT BREAKER, THERMAL MAG, 3P, 125A
• Manufacturer: EATON CUTLER HAMMER
• Series: Cr

Specifications of FD3125

• Actuator Style: Toggle
• No. Of Poles: 3
• Current Rating: 125A
• Voltage Rating Vdc: 250V
• Voltage Rating Vac: 600V
• Mounting Type: DIN Rail
• Terminals: Screw

12-254
12
Sliding Bar Interlock
Product Description
The Sliding Bar Interlock provides
mechanical interlocking between
two adjacent 3-pole circuit breakers.
It is installed on the enclosure cover
between the circuit breakers. When the
sliding bar interlock handle is moved
from one side to the other, a bar
extends to alternately block movement
of the circuit breaker handles and
prevents both circuit breakers from
being switched to ON at the same
time. Sliding bar interlocks are not
UL listed. (Field installation only.)
Walking Beam Interlock
Product Description
The Walking Beam Interlock provides
mechanical interlocking between two
adjacent circuit breakers of the same
pole configuration. The walking beam
interlock mounts on a bracket behind
and between the circuit breakers.
A plunger on each end of the beam
is inserted through an access hole in
the back plate and base of each circuit
breaker. The walking beam interlock
prevents both circuit breakers from
being switched ON at the same time.
If a walking beam interlock is installed,
the wiring troughs in the back of the
circuit breaker case are blocked by the
plungers and cannot be used for cross
wiring. Factory modified circuit break-
ers are required for this application.
UL File E3816.
➤
➤
Series C Molded Case Circuit Breakers
External Accessories
Mechanical Interlocking Devices
Walking Beam Interlock
Sliding Bar Interlock
Ordering Information
The sliding bar interlock is available
for mounting between two adjacent
3-pole circuit breakers with circuit
breakers centerline spacing as indi-
cated in table and enclosure front
panel thickness of 1/8 or 3/16 inch (3.2
or 4.8 mm). (For field installation only.)
Ordering Information
The walking beam interlock is avail-
able for mounting between two adja-
cent circuit breakers spaced 1/4-inch
(6.4 mm) apart and having the same
pole configuration. The two circuit
breakers must be factory modified
to accept the walking beam interlock
assembly (suitable for use with either
2-, 3- or 4-pole circuit breakers).
With properly modified circuit breakers,
the walking beam interlock is suitable
for field installation. Order circuit
breakers specifying modification
for walking beam (20% price adder)
and select walking beam interlock
from table below. Circuit breakers
and walking beam interlock are
boxed and shipped separately.
For more information visit: www.eaton.com
Table 12-481. Sliding Bar Interlock
Table 12-482. Walking Beam Interlock
Discount Symbol . . . . . . . . . . . . . . . . . . . . . . . . CB-2
Frame Centerline Spacing
F
J
K
L, M
N
Frame
F
K
L, M
N
R
3-pole only.
in Inches (mm)
4.19 (106.4)
4.38 (111.3)
5.75 (146.0)
8.50 (215.9)
8.50 (215.9)
Catalog
Number
WBL1
WBL3
WBL4A
WBL5
WBL6
Catalog
Number
SBK1
SBK2
SBK3
SBK4
SBK5
November 2008
Price
U.S. $
CA08101001E
Price
U.S. $