Siemens SINOVA - Page 127

Accessories
3.9 Accessories for locking and interlocking
3WJ Air Circuit breakers
126 Operating Instructions, 12/2022, L1V30828903001-01
Configuration: Three Circuit Breakers stacked
Description:
When one 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. Three
additional Bowden wires must be ordered separately.
Terminals for the Bowden wires:
1. Bowden wire: S
1O1 - S2I1
2. Bowden wire: S
1O2 - S3I1
3. Bowden wire: S
2O1 - S1I1
4. Bowden wire: S
2O2 - S3I2
5. Bowden wire: S
3O1 - S1I2
6. Bowden wire: S
3O2 - S2I2
Note
The cylinder
-head screws with strain washer must be screwed into the index brackets at the
following terminals: S
2
I
1
, S
3
I
1
, S
1
I
1
, S
3
I
2
, S
1
I
2
, S
2
I
2
.
Possible Circuit Breaker statuses:
Example: