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General characteristics of circuit-breakers with right lateral operating mechanism for
ABB UniSwitch type switchgear (12 – 17.5 – 24 kV)
Circuit-breaker
Standards
Rated voltage
Rated insulation voltage
Withstand voltage at 50 Hz
Impulse withstand voltage
Rated frequency
Rated normal current (40°C)
Rated breaking capacity
(rated symmetrical short-circuit current)
Rated short-time withstand
current (3s)
Making capacity
Operation sequence
[ O - 0.3s - CO - 15s - CO ]
Opening time
Arcing time
Total breaking time
Closing time
Overall
dimensions
H
(maximum)
D
Pole centre distance I [mm]
W
Weight
(3)
Application of PR521 protection device
Application of PR521/DK protection device
Table of standardised dimensions
Electric circuit diagram
Operating temperature
Tropicalization
IEC: 60068-2-30, 60721-2-1
Electromagnetic compatibility
(1) For circuit-breakers with PR 521 device and 3 current sensors, increase the weight indicated by 20 kg
(2) Rated current of the current sensors (the PR521 device and the current sensors are optional)
(3) Special version with "ß = 1" or "ß = 1, RI" curves for the Belgian market: please ask ABB for availability and delivery times
10
VD4/S 12
IEC 62271-100
CEI 17-1 (file 1375)
Ur [kV]
12
Us [kV]
12
Ud (1 min) [kV]
28
Up [kV]
75
fr [Hz]
50-60
Ir [A]
630
Isc [kA]
12.5
16
20
25
12.5
Ik [kA]
16
20
25
Ip [kA]
31.5
40
50
63
[ms]
40...60
[ms]
10...15
[ms]
50...75
[ms]
50...70
730
H [mm]
W [mm]
282
D [mm]
990
210
[kg]
67
In [A]
40 - 80 - 250 - 1250
(3)
see note
1VCD000098
1VCD400098
[°C]
- 5 ... + 40
IEC 60694
VD4/S 17
17.5
17.5
38
95
50-60
800
1250
630
12.5
12.5
12.5
16
16
16
20
20
20
25
25
—
12.5
12.5
12.5
16
16
16
20
20
20
25
25
—
31.5
31.5
31.5
40
40
40
50
50
50
63
63
—
40...60
10...15
50...75
50...70
730
282
990
210
67
(2)
40 - 80 - 250 - 1250
see note
1VCD000098
1VCD400098
- 5 ... + 40
VD4/S 24
24
24
50
125
50-60
800
1250
630
12.5
12.5
12.5
16
16
16
20
20
20
—
—
—
12.5
12.5
12.5
16
16
16
20
20
20
—
—
—
31.5
31.5
31.5
40
40
40
50
50
50
—
—
—
40...60
10...15
50...75
50...70
730
282
990
210
67
(2)
40 - 80 - 250 - 1250
(3)
see note
1VCD000098
1VCD400098
- 5 ... + 40
800
1250
12.5
12.5
16
16
20
20
—
—
12.5
12.5
16
16
20
20
—
—
31.5
31.5
40
40
50
50
—
—
(2)
(3)
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