Operation
222/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9
Circuit-breaker panel: Earthing the feeder
NOTICE
Maloperation of the locking device
Can cause considerable property damage.
For a panel optionally equipped without interlocking between locking device and three-
position disconnector: If the circuit-breaker and the three-position disconnector are in
CLOSED position, do not operate the locking device.
If the locking device is operated, all electrical and mechanical opening commands (e.g.
protection tripping) are ineffective.
➭ Operate the locking device only under the following conditions:
- Three-position disconnector switched to READY-TO-EARTH position.
- Circuit-breaker switched to CLOSED position.
1
Initial situation
2
➭ Push the interrogation lever downwards
and hold it.
3
➭ Push the control gate to the right and hold
it (the interrogation lever locks in lower
position. The actuating opening for the
READY-TO-EARTH function opens).
4
➭ Switch the three-position disconnector to
READY-TO-EARTH position (insert the operating
lever and turn 180° clockwise).
5
➭ Remove the operating lever (the
interrogation lever and the control gate
return to their initial position. The
actuating opening closes).
6
➭ To earth the feeder, close the circuit-
breaker.
7
➭ Push the locking device upwards.
8
➭ Fit a padlock.
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