Description
2.1 Mechanical components
3WJ Air Circuit breakers
Operating Instructions, 12/2022, L1V30828903001-01
21
2.1.4.3 Position of the Circuit Breaker in the guide frame
Main and auxiliary circuit
Green
The auxiliary terminals of the
breaker are outside of the
auxiliary connector blocks of
the guide frame.
Open
Closed
Green
The auxiliary terminals of the
breaker are inside the auxiliary
connector blocks of the guide
frame.
The guide rails are back in
their initial position.
Closed
Closed
Main circuits disconnected
Auxiliary circuits connected
Closed
Closed
Main circuits connected
Auxiliary circuits connected
Closed
Open
① Main circuit
② Auxiliary circuit
③ Shutter