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12KV 1250A HV Vacuum Circuit Breaker With Vacuum Arcing Chamber

Categories Vacuum Circuit Breaker
Brand Name: XG
Model Number: ZN28
Certification: ISO,CCC
Place of Origin: XIAN
MOQ: 1 SET
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 2000 SET
Delivery Time: 7-15 DAYS
Packaging Details: WOODEN CASE
Type: HV Vacuum Circuit Breaker
Rated Voltage: 3.6KV 6.6KV 7.2kV, 12kV, 17.5kV, 24kV, 36kV, 40.5kV
Rated Current: 400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A,
Frequency: 50/60Hz
Poles Number: 3
Phase: Three phase
Medium: vacuum
Material: galvanized sheet and accessories
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12KV 1250A HV Vacuum Circuit Breaker With Vacuum Arcing Chamber

12KV 1250A HV Vacuum Circuit Breaker With Vacuum Arcing Chamber ​


1.Description of HV Vacuum Circuit Breaker


Ambient temperature:-40°C~+40°C
Relative humidity:≤95%or≤90%

Altitude:2000m

Wind pressure:700Pa(equivalent to wind speed 34m/s)

Seismic intensity:8


2.Parameter of HV Vacuum Circuit Breaker


No.ItemUnitData
1Rated voltageKV12
2Rated insulation voltageV42,75
3Rated currentA630,1250,1600,2000,2500,3150
4Rated short-circuit close current(peak value)KA20,31.5,40
5Rated operation orderoff--0.3s on and off--180S-on and off
6Rated short-circuit Breaking current timestimes30(50),20(30)
7Rated Impulse withstand voltageKA50,80,100
84S Heat steady e.c.A20,31.5,40
9all opened and broke timems≤100
10Mechanical life-spantimes10000
11cumulated thickness of the moving and stationary contactmm3
12Oil buffer buffers the journeymm10

3.Environmental condition


Relative humidity: daily average ≤95% , monthly average ≤90% ;

Earthquake intensity: 8 degree;

Altitude: ≤1000m;

Ambient temperature: -25°C ~+40°C ;

It should work in occasions without flammable and explosive matter, without corrosive chemical and frequent severe vibration.

4.Technical diagram

5. Prodcution line

6. After service

7. FAQ


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Quality 12KV 1250A HV Vacuum Circuit Breaker With Vacuum Arcing Chamber for sale
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