Rockwell Automation 1494V Flange Operated Circuit Breaker Kits (125A / 150A / 250A / 400A) User Manual
Page 5
CIRCUIT BREAKER AND ACCESSORY
INSTALLATION INSTRUCTION SHEET
1
1013923
42052-074
OF
N/A
N/A
N/A
REVISION
AUTHORIZATION
DR.
CHKD.
APPD.
DATE
DATE
DATE
E - DOC
LOCATION: MILWAUKEE, WISCONSIN U.S.A.
B-vertical.ai
DWG.
SIZE
SHEET
B
1
2
3
4
5
6
7
8
A
B
C
D
E
F
G
H
REFERENCE
DIMENSIONS APPLY BEFORE
SURFACE TREATMENT
(DIMENSIONS IN INCHES)
TOLERANCES UNLESS
OTHERWISE SPECIFIED
.XX:
.XXX:
ANGLES:
42052
THIS DRAWING IS THE PROPERTY OF
ROCKWELL INTERNATIONAL CORPORATION
OR ITS SUBSIDIARIES AND MAY NOT BE COPIED,
USED OR DISCLOSED FOR ANY PURPOSE
EXCEPT AS AUTHORIZED IN WRITING BY
ROCKWELL INTERNATIONAL CORPORATION
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5
7
Circuit Breaker Installation (Cont'd)
Testing of Circuit Breaker
(5)
1. Verify that the circuit breaker can be turned on by moving the defeater lever downward and moving the disconnect
handle to the ON position.
2. If the circuit breaker does not turn on, loosen the (2) screws and adjust the toggle adjustment plates toward the line
terminals until the circuit breaker turns on when the disconnect handle is in the ON position. Tighten the (2) toggle
adjustment plate screws to 25 - 30 lb-in.
3. If the circuit breaker still can not be turned on unhook the spring, remove hitch pin and separate threaded rod and
handle link. Turn threaded rod one full turn counterclockwise. Reattach threaded rod and handle link, hitch pin and
spring. Repeat Step 1 and if necessary Step 2.
4. Verify that the circuit breaker can be turned off by moving the disconnect handle to the OFF position.
5. If the circuit breaker can not be turned off, loosen the (2) screws and adjust the toggle adjustment plates toward the
load terminals until the circuit breaker turns off when the disconnect handle is in the OFF position. Tighten the (2)
toggle adjustment plate screws to 25 - 30 lb-in.
6. If the circuit breaker still can not be turned off and if no adjustment of the threaded rod was made in Step 3 then
unhook the spring, separate threaded rod and handle link and remove hitch pin. Turn threaded rod one full turn
clockwise. Reattach threaded rod and handle link, hitch pin and spring. Repeat Step 4 and if necessary Step 5.
7. Verify that the circuit breaker can be reset after manually tripping when circuit breaker is in the ON position.
8. Manually trip the circuit breaker while in the ON position, then move the disconnect handle to the Off-Reset
position.
9. If the circuit breaker does not reset, loosen the (2) screws and adjust the toggle adjustment plates in small
increments toward the load terminals.
Note: Repeat this procedure until the circuit breaker can be reset.
Note: Do not adjust the toggle adjustment plate too far: this will prevent the disconnect handle from moving to the full OFF-
Reset position.
10.Tighten the (2) adjustment plate screws to 25 - 30 lb-in.
11.Verify that the circuit breaker can still be turned on following the above steps.
Note: Twisting of the bail mechanism is acceptable when the handle is in the full ON or full OFF position.
8
7
2
3
1
3
4
2
1
Hitch Pin