Interlocks
110-0134.9 / 14
NXAIR /
≤ 40 kA
31
7.4
Additional electromagnetic interlocks (optional)
Action
Additional preconditions
Racking the withdrawable part / switching-device
truck
General or external release
Operating the feeder earthing switch
General or external release
1)
Operating the busbar earthing switch
General or external release
1)
Not feasible with contactor panel with panel width 435 mm
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:
7.5
Additional padlock interlock (optional)
Action
Additional preconditions
Racking the withdrawable part / switching-device truck
Access to actuating openings only after
removing the padlock
Operating the feeder earthing switch
Access to actuating openings only after
removing the padlock
Operating the busbar earthing switch
Access to actuating openings only after
removing the padlock
Opening the high-voltage door
Access to actuating openings only after
removing the padlock