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vacuum arc extinguishing chamber
vacuum arc extinguishing chamber

1. With ceramic envelope 2. high interrupting capability 3. safety and reliable.

 With ceramic envelope and vacuum dielectric,the vacuum arc extinguishing chamber offers a number of advantages, such as high interrupting capability, inside electric arc, safe and reliable, etc. It is the ideal interrupter used for controlling equipment in the fields of the coalmine, chemical, electric power, metallurglcal industry and so on.

Being fitted with appropriate operating mechanism, the interrupter can be constructed to the HV/MV/LV AC circuit breaker or AC contactor used for the controlling devicos of the power distribution , the remote turning on and switching off motors ,in the AC circuits such as transformer and capacitor banks. Especially, it is suitable to use as the isolate-explosion type magnetic starter.


a. Model       STD630-1.14-12.5

b. Rated Working Voltage(KV)         1.14

c. Power Frequecy Withstand Voltags(kV)      10

d. Rated Working Current(A)                  630

e. Rated Interruping Short Current (kA,times)12.5,30

f. Rated Current Interrupting times(times) 10000

g. Rates Contact Gap(mm)          4

h. Contact Force from Atmosphere Pressure     95±15

i. Maximum Mass of Intertupter(kg)    1.7

j. Store Duration 20 Years

Operating Conditions

a. Ambient Temperature   -25°C~40°C

b. Relative Humidity      ≤90%(25°C)

vacuum arc extinguishing chamber

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