www.weg.net
WEG Molded Case Circuit Breakers - User’s Manual
5
2. Remove installed cover screws and cover.
NOTICE
The circuit breaker handle must be in the tripped or OFF position to remove the cover.
Instructions for installing the trip unit accessories are supplied with the devices.
3. If not already installed, mount trip unit and accessories (if required) in circuit
breaker frame.
CAUTION
When removed and reinstalled, thread forming screws will try to reform
the threads in the base. Care should be taken every time a thread-forming
screw is used to ensure the screw starts in the original threads. Damaged
threads can result in improper circuit breaker cover retention.
4. Install cover, and secure with pan-head screws followed by thread-forming
screws, as shown in Figure 3. Torque cover screws to 18-23 lB-in (2-2.6 N.m).
1
1
1
2
2
1
3
2
2
2
Figure 3:
cover screw installation positions
1. Screw, .190-32 x 3.13 Inch, Pan Head, Cross-Recessed.
2. Screw, No. 8 x 1.88 Inch, Pan Head, Cross-Recessed, thread forming.
3. Screw, No. 6 x 1.50 Inch, Pan Head, Cross-Recessed, Thread Forming (used with 4 pole only).
Note: hatched linea show additional pole and screws for 4-pole circuit breaker.
