Accessories
4.9 Interlocking
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
333
4.9.3 Interlocking of three circuit breakers (one of three) using a Bowden
cable
Example
Possible circuit breaker statuses
Description
In the case of parallel circuit breakers (e.g. redundancy), when one circuit breaker is
closed, the other two cannot be closed.
Required materials
An interlocking module with a Bowden cable and an extra Bowden cable are required for
each circuit breaker, i.e. three mechanical interlocks and three Bowden cables must be
ordered.
Connections of the Bowden cables
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