Siemens SENTRON 3WL10 - Racking and Retracting the Breaker

7.5 Basic unit and accessories
7.5.1 Removing the front plate and accessories
For further maintenance, the circuit breaker must be partially disassembled:
1. Remove the front plates and terminal covers, see Chapter Installing accessories (Page167).
2. Remove the spring charging motor MO (Page174), if installed.
3. Remove the undervoltage release UVR (Page174), if installed.
4. Discharge the springs of the tripping mechanism.
5. Remove the cover over the mechanical pushbuttons.
Service and maintenance
7.5Basic unit and accessories
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
202 Equipment Manual, 10/2023, L1V30499596002-03