Hvd1 12kv Vacuum Circuit Breaker Vcb Vs1

We are appreciated company for manufacturing, exporting and supplying huge range of HVD1 12KV vacuum circuit breaker VCB VS1 from Yichang, Hubei, China. HVD1-12(VS1-12) type indoor AC HV vacuum circuit breaker
Rated voltage: 12KV
Rated lightning impulse withstand voltage(1min): 75KV
Rated short-time power frequency withstand voltage (1min): 42KV
Rated short-circuit breaking current: 20KA, 25KA, 31.5KA, 40KA
Rated peak withstand current: 50KA, 63KA, 80KA, 100KA
Rated shorted-time withstand current: 20KA, 25KA, 31.5KA, 40KA
Rated shorted-time making current(peak): 50KA, 63KA, 80KA, 100KA
Rated current: 630A, 1000A, 1250A, 2000A, 2500A, 3150A
Power frequency withstand voltage of secondary circuiti 1mini : 2000V
Opening time(rated voltage): 20-50ms
Closing time(rated voltage): 30-70ms
Rated short-circuit current breaking times: 50(40kA 30) times.
Mechanical life: 30,000 times.

Service conditions
3.1 Environment temperature:-15a i +40a ;
3.2 Environment humidity: Daily average relative humidity:a 95%, monthly average relative humidity:a 90%; Daily average saturated vapor pressure:a 2.2A 10-3Mpa,monthly average saturated vapor pressure:a 1.8A 10-3Mpa;
3.3 Altitude: Not exceed 1000mi
3.4 Earthquake intensity: Not exceedree;
3.5 Service location: No water, flammable or explosive matter, chemical corrosive gas or drastic vibration.