The vacuum contactor is mainly used in the power system with AC 50Hz and rated voltage 7.2kV, for making or breaking circuit and to make electromagnetic starter with suitable protective device and F-C switchgear.
2. Working condition:
1) Altitude should not be over 1,000m;
2) Ambient temperature: -5~40°C;
3) Average temperature in 24 hour not exceed 35°C;
4) When the highest temperature is 40°C, the relative humidity should not be higher than 50%;
