17
1
5
6
11
2
3
9
8
Undervoltage release mechanical
override (on request)
Override activated
Undervoltage release disabled.
The circuit-breaker can be closed
even if the undervoltage release
is not supplied.
Override disabled
Undervoltage release activated.
The circuit-breaker can only be
closed if the undervoltage release
is supplied with power.
4
7
10
-
-
-
-
4.5.8. Operating and signalling parts
Fig. 10
Caption
1 Key lock (if provided) (*)
2 Lever for manually charging the closing springs
3 Coupling lever for racking-out operation (only for withdrawable circuit-breakers)
4 Opening pushbutton
5 Closing pushbutton
6 Signalling device for circuit-breaker open/closed
7 Signalling device for closing springs charged/discharged
8 Operation counter
9 Handles for operating the truck locks (only for withdrawable circuit-breakers)
10 Operating lever for circuit-breaker racking-in/out
11 Undervoltage release mechanical override (on request).
(*) Warning! To activate the key lock: open the circuit-breaker, keep the opening pushbutton
depressed, then turn the key and remove it from the housing.
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