Siemens NXAIR - Operating Lever for Earthing Switch

Operating the switch-disconnector panel
226 NXAIR / ≤ 40 kA 110-0134.9 / 14
Fit a padlock (optional) to the operating slide and close it.
✓
The switch-fuse combination has been operated from CLOSED position to OPEN position.
18.8 Operating lever for earthing switch
Operating lever for earthing switch:
• With the operating lever, the switching process at the feeder earthing switch can only be executed in
turning direction.
• The turning movement into the opposite direction has a freewheel and does not move the feeder
earthing switch; the operating lever works like a ratchet spanner.
• The feeder earthing switch is operated either clockwise or counter-clockwise according to the
switching function.
• To use the operating lever, two instruction labels show the turning direction for the corresponding
switching function.
Switching function:
From OPEN to CLOSED position
From CLOSED to OPEN position
Turning direction of the
operating lever:
Clockwise
Counter-clockwise
Instruction label on the
operating lever:
Fig. 402: Instruction labels on the operating lever