Description
2.2 Circuit breakers and non-automatic circuit breakers
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
31
For service purposes, the sliding covers can be opened and fixed manually with the aid
of the shutter levers.
Example: opening the lower sliding covers
Light pressure on the shutter lever releases the fixation. The shutter levers return to the
initial position and close the sliding covers.
If the withdrawable circuit breaker is inserted while the shutter levers are fixed, the
shutter may become damaged.
Only insert the withdrawable circuit breaker in the guide frame if the sliding covers are
closed and the shutter levers are in the central position and unlocked.
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