Additional Electromagnetic Interlocks (Optional); Additional Padlock Interlock (Optional) - Siemens NXAIR Operating Instructions Manual

7.4

Additional electromagnetic interlocks (optional)

Action
Racking the withdrawable part / switching-device
truck
Operating the feeder earthing switch
Operating the busbar earthing switch
1)
Not feasible with contactor panel with panel width 435 mm
7.5

Additional padlock interlock (optional)

Action
Racking the withdrawable part / switching-device truck
Operating the feeder earthing switch
Operating the busbar earthing switch
Opening the high-voltage door
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INFORMATION
Panel versions with electromagnetic interlock are identified on the high-voltage
door with labels for interlocking the disconnecting and/or the earthing function:
INFORMATION
The busbar earthing switch is secured against unintentional operation by means of
a padlock or an electromagnetic interlock.
Panel version with electromagnetic interlock is identified on the door to the low-
voltage compartment with a label:
NXAIR / ≤ 40 kA
Additional preconditions
General or external release
General or external release
General or external release
Additional preconditions
Access to actuating openings only after
removing the padlock
Access to actuating openings only after
removing the padlock
Access to actuating openings only after
removing the padlock
Access to actuating openings only after
removing the padlock
Interlocks
1)
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