Accessories
4.7 Locking and interlocking
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
367
Locking in the OFF (O) position
The cylinder lock (type Ronis) is installed with the adapter kit and the cylinder lock housing
for locking in the right-hand accessory compartment of the 3VA molded case circuit breaker
so that the breaker can be locked in the OFF (O) position. The slide for locking in the OFF
position is fitted for this purpose.
Adapter kit with OFF position slide
Cylinder lock housing for locking
Actuating lever
Cylinder lock (type Ronis)
Accessory cover
1. Remove the accessory cover ③ from the 3VA molded case circuit breaker.
2. Drill a hole through the accessory cover at the position marked on the rear face and
smooth down the drilled surface with a file.
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 molded
case circuit breaker.
5. Reattach the accessory cover to the 3VA molded case circuit breaker.
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