Installing the counting mechanism
Installing the display window
• Place the operator panel onto a wooden board (make sure that it is in full contact with the
surface) near the outline to be cut out.
• Use a screwdriver to cut out the groove base from the pre-pressed groove.
Functional check
Charge the stored-energy spring mechanism and watch the counting mechanism. Once the
charging process is complete, the counting mechanism is incremented by one.
Taking the necessary precautions, close and open the Circuit Breaker to discharge the
stored-energy spring mechanism.
3WJ Air Circuit breakers
Operating Instructions, 12/2022, L1V30828903001-01
CAUTION
3.3 Control and signaling accessories
Accessories
69