27
2
4
6
5
7
3
1
9
10
8
fig. 22
fig. 23
4.7. Standard fittings for circuit-breaker
4.7.1. Standard fittings for withdrawable
circuit-breaker series
The basic versions of the withdrawable circuit-breakers are
three-pole and fitted with:
1 EL type manual operating mechanism
2 mechanical signalling device for closing springs charged/
discharged
3 mechanical signalling device for circuit-breaker open/
closed
4 closing pushbutton
5 opening pushbutton
6 operation counter
7 set of ten circuit-breaker open/closed auxiliary contacts
8 lever for manually charging the closing springs
9 isolating contacts
10 cord with connector (plug only) for auxiliary circuits, with
striker pin which does not allow the plug to be inserted
into the socket if the rated current of the circuit-breaker is
different from the rated current of the panel
11 racking-in/out lever 16-fig.7(the quantity must be defined
according to the number of pieces of apparatus ordered)
12 locking electromagnet in the truck 7 - fig. 27 (-RL2). This
prevents the circuit-breaker being racked into the panel
with the auxiliary circuits disconnected (plug not inserted
in the socket).
4.7.2. Standard fittings for fixed circuit-breaker series
The basic versions of the fixed circuit-breakers are three-pole
and fitted with:
1 EL type manual operating mechanism
2 mechanical signalling device for closing springs charged/
discharged
3 mechanical signalling device for circuit-breaker open/
closed
4 closing pushbutton
5 opening pushbutton
6 operation counter
7 set of ten circuit-breaker open/closed auxiliary contacts
8 lever for manually charging the closing springs
fig. 24
