Siemens NXAIR Operating Instructions Manual page 52

Operating the circuit-breaker panel
Turn the double-bit key counter-clockwise as far as it will go (that is 90°) to interlock the
withdrawable circuit-breaker / circuit-breaker truck.
Fig. 72: Turning the racking crank
counter-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. 74: Position indicator in test position
✓
The withdrawable circuit-breaker / circuit-breaker truck has been racked from service
position to test position; the position indicator is in test position (horizontal bar).
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Fig. 73: Turning the double-bit key
NXAIR / ≤ 40 kA
counter-clockwise
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