Siemens NXAIR Operating Instructions Manual page 49

Operating the circuit-breaker panel
Push the racking crank for moving the withdrawable circuit-breaker / circuit-breaker truck
onto the operating shaft, and turn clockwise as far as it will go.
Remove the racking crank for moving the withdrawable circuit-breaker / circuit-breaker truck.
Turn the double-bit key clockwise as far as it will go (that is 90°) to interlock the withdrawable
circuit-breaker / circuit-breaker truck.
Fig. 62: Turning the racking crank clockwise Fig. 63: Turning the double-bit key clockwise
Remove the double-bit key.
To close the actuating opening, push the operating slide down as far as it will go.
Fit a padlock (optional) to the operating slide and close it.
Fig. 64: Position indicator in service position
✓
The withdrawable circuit-breaker / circuit-breaker truck has been racked from test position to
service position; the position indicator is in service position (vertical bar).
NXAIR / ≤ 40 kA
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