Siemens SINOVA Manual page 59

3wj air circuit breakers
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Accessories
3.2 Preparatory and concluding installation steps for the installation of internal accessories
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
58
Operating Instructions, 12/2022, L1V30828903001-01
3WJ Air Circuit breakers

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