Siemens SENTRON 3WL10 Series Manual page 155

Close circuit breaker
1. Check whether the spring energy store is charged.
2. Press the "Mechanical ON" pushbutton:
The circuit breaker closes the contacts to the conducting paths. The switch position
indicator changes to the CLOSED symbol and the spring energy store changes to the
DISCHARGED state.
The spring energy store can then be charged again.
Open circuit breaker
1. Press the "Mechanical OFF" pushbutton:
The circuit breaker opens the contacts to the conducting paths. The switch position
indicator changes to the OPEN symbol.
The status and the status indicator of the spring energy store do not change.
Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01
Operation
6.1 Operation
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