Accessories
4.7 Locking and interlocking
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
325
1. Assemble installation frame:
– Place mounting plates
① on the molded case circuit breaker.
– Bolt the profile rails
② to the adapter plates.
– Install rear interlock.
2. Bolt the assembled installation frame to the panel mounting plate.
No further work to the panel mounting plate is required.
The same rear interlock combinations can be implemented regardless of whether or not the
assembling aid is used.
Rear interlock for plug-in and draw-out units
In order to use a rear interlock for plug-in or draw-out versions of the molded case circuit
breakers, the tappet needs to be lengthened. The tappet extension transfers the interlocking
motion of the modules through the plug-in socket or the draw-out socket.
Interlocking module
Plug-in or draw-out socket
Tappet extension
Molded case circuit breaker
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