Siemens SENTRON 3WL10 Series Manual page 98

Accessories
3.4 External accessories
Locking device to prevent movement of the withdrawable circuit breaker with cylinder locks
With the cylinder locks on the guide frame, the circuit breaker is secured against racking in
the guide frame. The positions CONNECT, TEST, and DISCONNECT can be locked and the
circuit breaker can then no longer be racked in or out.
If multiple guide frames are equipped with cylinder locks, Ronis locks with different lock
numbers are used. This means each guide frame has its own key.
Locking mechanism to prevent movement of the withdrawable CB
With the locking device for padlocking on the guide frame, the circuit breaker is secured
against racking in the guide frame. The positions CONNECT, TEST and DISCONNECT can
be locked.
Locking is performed on the guide frame with up to three padlocks (diameter 8 mm / 0.32").
The circuit breaker can then no longer be racked in or out.
The padlocks are not included in the scope of delivery of the locking device and must be
provided by the customer.
Additional locking device that permits only locking in breaker position DISCONNECT with the
cylinder lock or padlock
When you use cylinder locks, locking can be limited to locking in the DISCONNECT position
by the additional accessory "Locking mechanism to prevent movement of the withdrawable
CB in the disconnected position". Locking in the CONNECT and TEST positions is then no
longer possible. Locking itself is performed with the two devices stated above
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Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01