ABB VD4 12 - Page 16

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5.4.4. General characteristics of withdrawable circuit-breakers for UniSafe switchgear
(1)Rated uninterrupted currents guaranteed with withdrawable circuit-breakers installed
in UniSafe switchgear with air temperature of 40 °C.
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 (3 s)
Making capacity
Operation sequence
Opening time
Arcing time
Total breaking time
Closing time
Maximum overall dimensions
Pole centre distance
Standardised table of dimensions
Operating temperature
Tropicalisation
Electromagnetic compatibility
IEC 62271-100
CEI 17-1 (File 1375)
Ur [kV]
Us [kV]
Ud (1 min) [kV]
Up [kV]
fr [Hz]
(1) Ir [A]
Isc [kA]
Ik [kA]
Ip [kA]
[O-0,3s-CO-3min-CO]
[ms]
[ms]
[ms]
[ms]
H [mm]
W [mm]
D [mm]
I [mm]
[°C]
IEC: 60068-2-30
721-2-1
IEC: 60694, 61000-6-2
61000-6-4
VD4/P 12
12
12
28
75
50-60
630 1250 630 1250 1600 2000 2500
16 16 16 16 – – –
20 20 20 20 20 20 20
25 25 25 25 25 25 25
31.5 31.5 31.5 31.5 31.5 31.5 31.5
16 16 16 16 – – –
20 20 20 20 20 20 20
25 25 25 25 25 25 25
31.5 31.5 31.5 31.5 31.5 31.5 31.5
40 40 40 40 – – –
50 50 50 50 50 50 50
63 63 63 63 63 63 63
80 80 80 80 80 80 80
40 ... 60
10 ... 15
50 ... 75
60 ... 80
632 632 632 632 690 690 690
503 503 503 503 653 653 853
664 664 664 664 642 642 642
150 150 210 210 210 210 275
TN7412 TN7412 TN7420 TN7420 TN7415 TN7415 TN7417
– 5 ... + 40