Accessories
3.10 Accessories for integration in the power distribution equipment
3WJ Air Circuit breakers
146 Operating Instructions, 12/2022, L1V30828903001-01
Preparatory work
• Open the Circuit Breaker and discharge the stored energy springs
• Disconnect auxiliary circuits
• Rack the Circuit Breaker into maintenance position (disconnected position) and remove it
from the guide frame (only withdrawable Circuit Breakers).
See chapter Preparation for maintenance work (Page 178)
Installation on the guide frame
1. Put the side plates onto the guide frame.
2. Put the top piece of the arc chute cover onto the guide frame.
3. Use an allen wrench to fix the arc chute covers to the guide frame with M6x16 screw and
washers with a torque of 8 Nm.
Installation on the fixed-mounted Circuit breaker
1. Attach the side plates to the top palte of the arc chute cover.
2. Attach the pieces to each other with an allen wrench using four sets of M6 screws, washers
and nuts.
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