41
41
4
5
6
9
7
8
10
1
2
3
6. Instructions for operating the circuit-breaker
1 Key lock (if provided) (*)
2 Lever for manually loading the closing spring
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 spring loaded/released
8 Operation counter.
9 Handles for operating the truck locks (only for withdrawable circuit-breakers)
10 Operating lever for circuit-breaker racking-in/out
(*)
Warning! To activate the key lock: open the circuit-breaker, keep the opening pushbutton depressed, then turn the key and remove it from its seat
.
Should mechanical operations be carried out on the
circuit-breaker outside the switchgear, take great
care of the moving parts.
If the operations are prevented, do not force the
mechanical interlocks and check that the operating
sequence is correct.
Racking the circuit-breaker in and out of the
switchgear must be done gradually to avoid shocks
which may deform the mechanical interlocks.
6.2. Switching and signalling parts
eVD4 circuit-breakers for UniGear switchgear and PowerCube
units (fig. 6a).
6.1. Safety indications
The eVD4 circuit-breakers guarantee a minimum
IP2X degree of protection when installed in the
following conditions:
– fixed circuit-breaker, installed behind a protective
metal net
– withdrawable circuit-breaker, installed in
switchgear.
Under these conditions the operator is totally
guaranteed against accidental contact with moving
parts.
Fig. 6a
Summary of Contents for eVD4
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