Siemens SINOVA - Door Interlock; Door Interlock for Fixed-Mounted Circuit Breaker

Accessories
3.9 Accessories for locking and interlocking
3WJ Air Circuit breakers
116 Operating Instructions, 12/2022, L1V30828903001-01
3.9.4 Door interlock
3.9.4.1 Door interlock for fixed-mounted Circuit Breaker
Article No.
Description
Article No.
Door interlock for fixed-mounted Circuit Breaker
3WJ9111-0BB12
Check the contents of the packaging
Preparatory work
• Open the Circuit Breaker and discharge the stored energy spring.
• Disconnect auxiliary circuits .
• Rack the withdrawable Circuit Breaker to the maintenance position and remove it from the
guide frame.
See chapter 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)