Siemens NXAIR Operating Instructions Manual page 120

Operating the contactor panel with panel width 435 mm
Preconditions
•
Contactor truck in service position or in test position
•
Contactor in CLOSED position
•
For electromagnetic interlock (optional):
•
Electromagnetic interlock deactivated
•
High-voltage door closed
•
Panel set to local control
•
Double-bit key available
Procedure
To release the actuating opening for the double-bit key, lift the operating slide and hold it.
Fig. 197: Operating slide lifted
To open the contactor manually, insert the double-bit key and turn as far as it will go:
•
Contactor truck in service position:
•
Contactor truck in test position:
✓
The contactor is open.
120
INFORMATION
Final procedure steps
You may now go on to insert the crank for racking the contactor truck.
Otherwise remove the double-bit key, push the operating slide down, fit a
padlock (optional) to the operating slide and close it.
NXAIR / ≤ 40 kA
Fig. 198: Double-bit key to turn
90° counter-clockwise
90° clockwise
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