Siemens SENTRON 3VA27 - Page 111

The door interlock can be overridden by a deliberate action. This is done by pressing the
door interlocking pin on the left side of the masking plate with a sharp object (e.g. a narrow
screwdriver). This means that the door can be opened with the operator in position ON so
that maintenance can be carried out, for example.
21
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Locking
The circuit breaker can be locked via the door mounted rotary operator in three di󹪜erent
ways.
1. On the handle: If the circuit breaker on the handle is locked with padlocks (up to three,
5-7mm diameter), the door cannot be opened when the circuit breaker is open either.
2. On the rotary operator: For locking the circuit breaker while the panel door is open, e.g. for
maintenance work, padlocks (up to three, 5-7mm diameter) can also be used on the
operator itself.
3. With cylinder lock on the rotary operator: The circuit breaker can also be prevented from
closing with a key and an optionally installable cylinder lock.
Accessories
3.4Rotary operators
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
110 Equipment Manual, 10/2023, L1V30499596002-03