Accessories
3.2 Preparatory and concluding installation steps for the installation of internal accessories
3WJ Air Circuit breakers
58 Operating Instructions, 12/2022, L1V30828903001-01
Opening the circuit breaker and discharging the stored-energy spring
1. Check that the circuit breaker is ready to close ("OK" indication) and the stored-energy spring
is charged ("CHARGED" indication).
2. Press the CLOSE button.
3. Check that the "CLOSED" and "DISCHARGED" indications are active.
4. Press the OPEN button.
5. Check that the "OPEN" indication is active.
Operator panel
Removal
• Check that the Circuit Breaker is OPEN and the stored-energy spring is discharged
• Remove the secondary disconnect terminals
• Unscrew the operator panel
• Pull the spring-charging lever down
• Remove the operator panel
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