Accessories
3.9 Accessories for locking and interlocking
3WJ Air Circuit breakers
Operating Instructions, 12/2022, L1V30828903001-01
105
3.9 Accessories for locking and interlocking
3.9.1 Safety locking device
Article No.
Safety locking device instead of the OPEN button
Check the contents of the packaging
Preparatory work
1. Open the Circuit Breaker and discharge the stored energy spring.
2. Disconnect auxiliary circuits.
3. Rack the withdrawable Circuit Breaker to the maintenance position and remove it from the
guide frame.
See also Preparation for maintenance work (Page 178)
Removing the operator panel
See chapter Preparatory and concluding installation steps for the installation of internal
accessories (Page 57)
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