Siemens NXAIR M Operating Instructions Manual page 49

Preconditions

Withdrawable circuit-breaker in service position or in test position

Circuit-breaker in OPEN or CLOSED position

Spring state indicator for the closing spring shows NOT CHARGED

High-voltage door closed

Auxiliary voltage for the panel disconnected

Hand crank available
139-2021.9 / 07
NOTICE
Maloperation
Racking the withdrawable circuit-breaker while the hand crank is inserted in the
actuating opening can damage the circuit-breaker.
Remove the hand crank from the actuating opening immediately after
manual charging of the spring energy store.
Never leave the hand crank in the actuating opening.
NOTICE
Conflicting operation
The requirement of setting the panel to either local or remote control prevents
operating the panel locally and centrally at the same time.
For charging the spring energy store manually, set the panel to local
control, for example by switching the local-remote switch to LOCAL
position.
Fig. 68: Hand crank not removed
Fig. 69: Actuating opening on high-voltage door
Operating the circuit-breaker panel
NXAIR M 49