Accessories
4.7 Locking and interlocking
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
313
Installing the cylinder lock in the accessory compartment
The cylinder lock (type Ronis) is installed with the adapter kit and the "Interlocking" cylinder
lock housing in the right-hand accessory compartment of the molded case circuit breaker.
Adapter kit
Cylinder lock housing for interlocking
Actuating lever
Cylinder lock (type Ronis)
Accessory cover
1. Remove the accessory cover
③ from the 3VA UL molded case circuit breaker.
2. From the rear of the lid of the accessory cover, drill a hole through the lid at the position
designated for the cylinder lock housing and remove burrs with a file.
In addition, introduce as precise a gap as possible for anti-rotation protection of the
cylinder lock housing.
3. Insert a cylinder lock (type Ronis)
⑤ and the locking version of the cylinder lock housing
④ in the drilled hole and connect it securely to the accessory cover ② via the actuating
lever.
4. Install the adapter kit
① in the right-hand accessory compartment of the 3VA UL molded
case circuit breaker.
5. Reattach the accessory cover to the 3VA UL molded case circuit breaker.
A cylinder lock (type Ronis) is installed for each 3VA UL molded case circuit breaker to be
interlocked.
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