9
3
4
1
7
8
6
9
12
11
10
fig. 3
fig. 4
fig. 5
fig. 6
9
5
2
Caption
1 Lever for manual closing spring charging
2 Signalling device for circuit-breaker open/closed
3 Rating plate
4 Opening pushbutton
5 Closing pushbutton
6 undervoltage release mechanical override (on request)
7 Signalling device for closing springs charged/discharged
8 Operation counter
9 Terminals
10 Earthing hole
11 Passage for the auxiliary circuit cord
12 Auxiliary contacts
4. Description
4.1. General
The Vmax series of circuit-breakers are pieces
of apparatus under vacuum for indoor installation;
for the electrical performances, please refer
to the corresponding technical catalogue code
1VCP000408. For special installation requirements,
please contact Abb.
The following versions are available:
– fixed
– withdrawable for Abb PowerCube modules.
4.2. Reference Standards
The Vmax circuit-breakers conform to the IEC 62271-100,
ANSI C37.04 – C37.54 – C37.09 – C37.55 Standards and
those of major industrialized countries.
4.3. Fixed circuit-breaker
The fixed circuit-breaker (fig. 3-4) is the basic version
complete with structure and front protection screen. The fixing
holes are made in the lower part of the structure.
For the electrical connections of the circuit-breaker auxiliary
circuits, the proper terminal box is available.
The earthing hole is placed in the rear part of the circuit-
breaker.
