Siemens NXAIR M Operating Instructions Manual page 55

Procedure
Lift the operating slide to release the actuating opening.
Fig. 82: Lifting the operating slide
While keeping the operating slide lifted, insert the operating lever slightly into the actuating
opening such that the pins in the operating lever are horizontal.
Insert the operating lever in the actuating opening as far as it will go.
Fig. 83: Inserting the operating lever
Hold the operating lever with one hand straight in the actuating opening and turn the
operating lever with the other hand counter-clockwise 180° until the feeder earthing switch
changes to OPEN position.
Fig. 84: Turning the operating lever
Remove the operating lever.
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counter-clockwise
Operating the circuit-breaker panel
Fig. 85: Position indicator
on the high-voltage door
in OPEN position
NXAIR M 55