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Configuration: Three Circuit Breakers back to back
Description:
Two Circuit Breakers can be closed/opened independently of each other, with the third only
ready to be closed when the other two are open. If the third Circuit Breaker is closed, the
other two cannot be closed.
Required equipment:
Each Circuit Breaker is equipped with an interlocking module and a Bowden wire. The
Bowden wire must be ordered separately.
Terminals for the Bowden wires:
1. Bowden wire: S
2. Bowden wire: S
3. Bowden wire: S
4. Bowden wire: S
Note
The cylinder-head screws with strain washer must be screwed into the index brackets at the
following terminals: S
Possible Circuit Breaker statuses:
3WJ Air Circuit breakers
Operating Instructions, 12/2022, L1V30828903001-01
O
- S
I
1
1
2
1
O
- S
I
2
1
1
1
O
- S
I
2
2
3
1
O
- S
I
3
1
2
2
I
, S
I
, S
I
, S
I
.
2
1
1
1
3
1
2
2
3.9 Accessories for locking and interlocking
Example:
Accessories
127
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