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VCB Indoor Chemical Steel Circuit Breaker VK12-12 31.5 KV /630A 31.5kA Vacuum Energy

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VCB Indoor Chemical Steel Circuit Breaker VK12-12 31.5 KV /630A 31.5kA Vacuum Energy
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Features
Specifications
Place Of Origin: Shanghai, China
Brand Name: VIKAI
Model Number: VK12-12
Breaking Capacity: 31.5
Rated Voltage: 12KV
Rated Current: 630/1250/1600/2000/2500/3150
Product Name: VCB
Rated Voltage: 12KV
Rated Current: 630A
Breaking Capacity: 31.5KA
Rated Frequency: 50HZ
Standard: IEC60947-2
Certificate: ISO9001
Mechanical Life: 30000 Times
Keywords: Circuit Breaker
Type: Vacuum
Basic Infomation
Place of Origin: Shanghai, China
Brand Name: VIKAI
Certification: ISO9001
Model Number: VK12-12
Payment & Shipping Terms
Packaging Details: 1.Standard export wooden case 2.Customized
Supply Ability: 1000 Piece/Pieces per Month For vd4 circuit breaker
Product Description
Technical Parameters
Unit
Data
Rated voltage
Kv
12
Rated frequency
Hz
50
1min power frequency withstand voltage
KV
42(1)
Rated lightning impulse withstand voltage
KV
75(1)
Rated current
A
630
630
630

1000
1000
1000
1250
1250
1250
1250
1600
1600
2000
2000
2500
2500
3150
3150
4000(2)
Rated short-out breaking current
KA
20
25
31.5
40
Rated short-out making current
KA
50
63
80
100
Rated short-circuit current breaking times
times
50(<=31.5kA)/30(40kA)
Rated short-out duration
s
4
Rated short-out operation sequence
O-0.3s-CO-180s-CO
Rated breaking current(3)
A
630
Back-to-back Breaking current(3)
A
400
Work voltate and supply voltage
V
AC220/110, DC220/110
Magnitude of partial discharge
PC
<=10
Note:
(1).When test is carried out at altitude of less 1000m, 42should be adjust to 48, 75 to 85(expect for polar distance 150mm).
(2).When the rated current is 4000A, switchgear should be equipped with force air cooling system.
(3).Rated parameter provides when need.
(4).Welcome contact us to confirm latest parameter.
Products Description
Environmental Conditions
1.Ambient temperature: -15℃- 40℃ 2.Ambient humidity Daily mean relative humidity: ≤95%
Monthly mean relative humidity: ≤90%
Daily mean vapor pressure: ≤2.2×10-3 MPa Monthly mean vapor pressure: ≤1.8×10-3 MPa
3.Altitude: not exceed 2000m; 4.Polar distance 150mm, altitude ≤1000m; 5.Please contact us for special operating conditions.
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