Accessories
3.9 Accessories for locking and interlocking
3WJ Air Circuit breakers
128 Operating Instructions, 12/2022, L1V30828903001-01
Configuration: Three Circuit Breakers, of which two are back to back
Description:
One Circuit Breaker can be closed/opened independently of the other two. The two other
Circuit Breakers are mutually exclusive, that is, one can only be closed when the other is
open.
Required equipment:
Two of the three Circuit Breakers are each equipped with an interlocking module and a
Bowden wire.
Terminals for the Bowden wires:
1. Bowden wire: S
2O1 - S3I1
2. Bowden wire: S
3O1 - S2I1
-head screws with strain washers must be screwed into the index brackets at the
3
1
2
1
Possible Circuit Breaker statuses:
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