Siemens NXAIR Operating Instructions Manual page 152

Operating the contactor panel with panel width 600 mm
Push the door handle on the high-voltage door totally downwards and release it.
Fig. 265: Closing the high-voltage door
Fit a padlock (optional) to the door handle and close it.
✓
The high-voltage door is closed.
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NXAIR / ≤ 40 kA
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