Standard Fittings For Fixed Circuit-Breakers; Withdrawable Circuit-Breakers - ABB VD4 Installation And Service Instructions Manual

VD4 fixed circuit-breaker without bottom and top terminals
Ur Isc Rated uninterrupted current (40°C) [A]
kV kA H=631
D=424
u/l=310
l/g=282.5
P=210
W=570
16 630
20 630
25 630
16 630
20 1250
25 1250
16
20
25
24
16
20
25
16
20
25
16
20
25
25
Notes
H = Height of the circuit-breaker.
W = Width of the circuit-breaker.
D = Depth of the circuit-breaker.
u/l = Distance between bottom and top terminal.
l/g = Distance between the bottom terminal and the resting surface of the circuit-breaker.
P = Pole horizontal centre distance.

5.4.3. Standard fittings for fixed circuit-breakers

The basic version of the fixed circuit-breakers are three-pole and fitted with:
– EL type manual operating mechanism
– mechanical signalling device for closing spring charged/discharged
– mechanical signalling device for circuit-breaker open/closed
– closing pushbutton, opening pushbutton and operation counter
– set of ten circuit-breaker open/closed auxiliary contacts
Note: with the set of ten auxiliary contacts supplied as standard and the maximum number
of electrical applications possible, three make contacts (signalling circuit-breaker open) and
five break contacts (signalling circuit-breaker closed) are available.
– lever for manual closing spring charging
– auxiliary circuit support terminal box.
5.5.

Withdrawable circuit-breakers

The withdrawable circuit-breakers are available for UniGear ZS1 switchgear, PowerCube
modules (see fig. 5a) and for ZS8.4 switchgear (see fig. 5b).
They consist of a truck on which the supporting structure of the circuit-breaker is fixed.
Circuit-breakers for UniGear ZS1 switchgear and PowerCube modules (fig. 5a)
The cord with the connector (14) (plug) for connection of the operating mechanism electrical
accessories comes out of the connection (15).
The strikers for operating the contacts (connected/isolated) placed in the switchgear are fixed
in the top part of the circuit-breaker.
The slides (9) for operating the segregation shutters of the medium voltage contacts of the
enclosure or of the switchgear are fixed on the sides of the circuit-breaker.
The crosspiece with the handles (17) for hooking up the circuit-breaker for the racking-in/out
operations by means of the special operating lever (16) is mounted on the front part of the
circuit-breaker truck.
H=642
D=424
u/l=310
ll/g=282.5
P=275 P=275
W=700 W=700
630
630
630
1250
1250
1250
1600
1600
1600
2000
2000
2000
2500
Circuit-breaker type
VD4 24.06.16 p210
VD4 24.06.20 p210
VD4 24.06.25 p210
VD4 24.12.16 p210
VD4 24.12.20 p210
VD4 24.12.25 p210
VD4 24.06.16 p275
VD4 24.06.20 p275
VD4 24.06.25 p275
VD4 24.12.16 p275
VD4 24.12.20 p275
VD4 24.12.25 p275
VD4 24.16.16 p275
VD4 24.16.20 p275
VD4 24.16.25 p275
VD4 24.20.16 p275
VD4 24.20.20 p275
VD4 24.20.25 p275
VD4 24.25.25 p275
15