Accessories
4.7 Locking and interlocking
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
307
Cylinder locks for locking the 3VA molded case circuit breaker
The OFF (O) or ON (I) position of the 3VA UL molded case circuit breaker can also be
locked with a cylinder lock (type Ronis). After the locking, the 3VA UL molded case circuit
breaker is protected from further actuation.
Locking with cylinder locks (type Ronis) is possible on all 3VA UL molded case circuit
breakers. The cylinder lock is installed in an accessory compartment of the 3VA UL molded
case circuit breaker.
To provide a cylinder lock, the following 2 components need to be ordered:
● One cylinder lock (type Ronis)
1 lock and 2 keys are always included in the order.
Selection of the lock number is highly flexible, i.e. it can be selected from a choice of four
different lock numbers. If different cylinder lock numbers are required for multiple locks,
they can be selected from the predefined article numbers stated in the catalog.
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