M ED I U M VO LTAG E P R O D U C T S
11
5.3.2 General specifications of fixed circuit breakers with lh lateral operating mechanisms (12 - 17.5 - 24 kV)
Circuit breaker
VD4/L 12
VD4/L 17
VD4/L 24
Standards
IEC 62271-100
•
•
•
CEI EN 62271-100
•
•
•
Rated voltage
Ur [kV]
12
17.5
24
Rated insulation voltage
Us [kV]
12
17.5
24
Withstand voltage at 50 Hz
Ud (1 min) [kV]
28
38
50
Impulse withstand voltage
Up [kV]
75
95
125
Rated frequency
fr [Hz]
50-60
50-60
50-60
Rated thermal current (40 °C)
Ir [A]
630
800
1250
630
800
1250
630
800
1250
Rated duty breaking capacity
(symmetrical rated short-circuit current)
Isc [kA]
12.5
–
–
12.5
–
–
12.5
–
–
16
16
16
16
16
16
16
16
16
20
20
20
20
20
20
20
20
20
25
25
25
25
25
25
–
–
–
Short-time withstand current (3 s)
Ik [kA]
12.5
–
–
12.5
–
–
12.5
–
–
16
16
16
16
16
16
16
16
16
20
20
20
20
20
20
20
20
20
25
25
25
25
25
25
–
–
–
Making capacity
Ip [kA]
31.5
–
–
31.5
–
–
31.5
–
–
40
40
40
40
40
40
40
40
40
50
50
50
50
50
50
50
50
50
63
63
63
63
63
63
–
–
–
Sequence of operations
[ O - 0.3s - CO - 15s - CO ]
•
•
•
Opening time
[ms]
40…60
40…60
40…60
Arcing time
[ms]
10...15
10...15
10...15
Total break-time
[ms]
50… 75
50… 75
50…75
Closing time
[ms]
30… 60
30… 60
30…60
Overall dimensions
(maximum)
H [mm]
785
785
785
W [mm]
317
317
317
D [mm]
1029 (
1
) / 1170 (
2
)
1029 (
1
) / 1170 (
2
)
1029 (
1
) / 1170 (
2
)
Pole center-distance P [mm]
230 / 300
230 / 300
230 / 300
Weight (
3
)
[kg]
65 (
1
) - 67 (
2
)
65 (
1
) - 67 (
2
)
65 (
1
) - 67 (
2
)
Application of REF 601 protection device (
5
)
• (
4
)
• (
4
)
• (
4
)
Standardized dimensions table
1VCD003453 (
1
)
1VCD003453 (
1
)
1VCD003453 (
1
)
1VCD003454 (
2
)
1VCD003454 (
2
)
1VCD003454 (
2
)
Wiring diagram
without protection
device installed
1VCD400097
1VCD400097
1VCD400097
with REF 601
1VCD400115
1VCD400115
1VCD400115
Operating temperature
[°C]
-5 ... +40 (
6
)
-5 ... +40 (
6
)
-5 ... +40 (
6
)
Tropicalization
IEC: 60068-2-30, 60721-2-1
•
•
•
Electromagnetic compatibility
IEC 62271-1
•
•
•
(
1
) 230 mm pole center-distance
(
2
) 300 mm pole center-distance
(
3
) increase the indicated weight by 20 kg for circuit breakers with REF 601 devices and 3 current sensors
(
4
) the rated current of the REF 601 device must be set in the relay in accordance with the circuit breaker’s rated current
(
5
) “IEC” or “CEI 0-16” version. If the “CEI 0-16” is required, the circuit breaker is always supplied with 3 phase current sensors (Rogowsky coils) installed on the actual circuit breaker and with a
loose toroidal TA. In the “CEI 0-16” version, the REF 601 device opens the circuit breaker by means of the undervoltage release -MU
(
6
) for operating temperature up to -25 °C and storage temperature up to -40 °C, please ask ABB
H
W
D
