5.5.4. General characteristics of withdrawable circuit-breakers for PowerCube modules
General characteristics of withdrawable
circuit-breakers
for PowerCube modules (12 kV)
Circuit-breaker
Standards
VDE 0671; CEI 17-1 (File 1375)
Rated voltage
Rated insulation voltage
Withstand voltage at 50 Hz
Impulse withstand voltage
Rated frequency
(1)
Rated normal current (40 °C)
Rated breaking capacity
(rated short-circuit breaking
current symmetrical)
Rated short-time
withstand current (3s)
Making capacity
Operation sequence
[ O - 0.3 s - CO - 15 s - CO ]
Opening time
Arcing time
Total breaking time
Closing time
Maximum
P P
Overall
H
Dimensions
Pole distance P [mm]
D
W
Weight
Standardised table of dimensions
Operating temperature
Tropicalization
IEC: 60068-2-30, 60721-2-1
Electromagnetic compatibility
(1) Rated current guaranteed with circuit-breaker installed in PowerCube enclosure and with 40 °C ambient temperature
(2) 4000 A in PowerCube enclosure with forced ventilation.
VD4/P 12
Modulo PowerCube
PB1
PB1
IEC 62271-100
Ur [kV]
12
Us [kV]
12
Ud (1 min) [kV]
28
Up [kV]
75
fr [Hz]
50-60
Ir [A]
630
1250
Isc [kA]
16
16
20
20
25
25
31.5
31.5
—
—
Ik [kA]
16
16
20
20
25
25
31.5
31.5
—
—
Ip [kA]
40
40
50
50
63
63
80
80
—
—
[ms]
33 ... 60
[ms]
10 ... 15
[ms]
43 ... 75
[ms]
60 ... 80
H [mm]
628
628
W [mm]
503
503
D [mm]
662
662
150
150
[kg]
116
116
TN
7412
7412
1VCD
—
—
[°C]
- 5 ... + 40
IEC: 60694
VD4/W 12
VD4/P 12
PB2
PB2
PB2
PB2
12
12
12
12
28
28
75
75
50-60
50-60
630
1250
1250
1600
16
16
—
—
20
20
—
20
25
25
—
25
31.5
31.5
—
31.5
—
—
40
—
16
16
—
—
20
20
—
20
25
25
—
25
31.5
31.5
—
31.5
—
—
40
—
40
40
—
—
50
50
—
50
63
63
—
63
80
80
—
80
—
—
100
—
33 ... 60
33 ... 60
10 ... 15
10 ... 15
43 ... 75
43 ... 75
60 ... 80
60 ... 80
691
691
691
691
653
853
653
653
642
642
641
642
210
210
210
210
135
135
174
160
7420
7420
—
7415
—
—
003284
—
- 5 ... + 40
- 5 ... + 40
VD4/W 12
PB2
PB2
PB3
PB3
1600
2000
2500
3150
—
—
—
—
—
20
20
20
—
25
25
25
—
31.5
31.5
31.5
40
40
40
40
—
—
—
—
—
20
20
20
—
25
25
25
—
31.5
31.5
31.5
40
40
40
40
—
—
—
—
—
50
50
50
—
63
63
63
—
80
80
80
100
100
100
100
691
690
691
730
653
653
853
853
641
642
640
640
210
210
275
275
174
160
186
221
—
—
7417
—
003284
003444
—
000152
(2)
25