Panels with motor operating mechanism control
110-0134.9 / 14
NXAIR /
≤ 40 kA
389
Preconditions
•
Feeder earthing switch in OPEN position
•
Circuit-breaker in OPEN position
•
Panel set to local control
•
Control door open
•
Withdrawable circuit-breaker / circuit-breaker truck in service position or in test position
•
For electromagnetic interlock (optional):
•
Electromagnetic interlock deactivated
•
Access mode indicator shows "M" or "T"
Procedure
To release the actuating opening for the double-bit key, lift the operating slide (1) and hold it.
Insert the double-bit key (2).
Fig. 705: Lifting the operating slide and inserting the key
To release manual access to the withdrawable circuit-breaker / circuit-breaker truck, turn the
double-bit key until the operating mode indicator changes to "H":
•
To change from "M" to "H",
turn 90° counter-clockwise
•
To change from "T" to "H
”, turn 90° clockwise
from
to
from
to
Fig. 706: Turning the key counter-clockwise
Fig. 707: Turning the key clockwise
