[Product Name]: VS1 (ZN63) breaker [Details]: Overview VS1 (ZN63A) -12 indoor high-voltage circuit breakers for KYN28A-12 high-voltage switchgear in the home is a three-phase AC 50Hz, rated voltage of 12kV. indoor installations, for industrial and mining enterprises, power plants and substations for the control and protection for electrical installations, and for frequent operation place. Use of the environment 1, the ambient temperature is not greater than +40 ℃ Yantai high voltage vacuum circuit breaker, not less than -10 ℃ (allow storage at -30 ℃ when); 2, altitude not more than 2000m; 3, air relative humidity daily average less than 95%, on average less than 90%, on average less than the saturated vapor pressure 2.2 × 10MPa, on average less than 1.8 × 10MPa, the temperature at high temperature during the drop Weihai high voltage vacuum circuit breaker, allowing condensation; 4, no more than 8 earthquake intensity; 5, no fire, explosion, serious pollution, chemical corrosion and severe vibration of the place please contact us.! As we all know, because of the vacuum breaker closure will cause closure of over-voltage, especially when negative emotional breaking small cut such as motors, under normal circumstances, to limit the over-voltage and over-voltage to the vacuum circuit breaker with absorbing devices such as SicRC Road, ZnO arrester, which makes large-scale structure and the complexity of the circuit breaker Liaocheng high-voltage vacuum circuit breakers, and some over-voltage limit is not ideal. Fourth, the main advantage EA9R leakage protection circuit breakers, for a pre-assembled earth leakage circuit breaker (earth leakage circuit breaker + attachments), is the maximum to avoid the risk of misuse assembled drain attachment. Can also provide overload, short circuit, leakage protection. In the event of leakage protection device operation, the device has a red front mechanical indication distinguishing leakage failure and other protection. Suqian high voltage vacuum circuit breakers, Huayi Electric Power (certified), vacuum circuit breaker provided by Xian Huayi power plant. Xian Huayi power plant (www.xahy.com) is a leader in Xi'an, high voltage circuit breakers, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Huayi power in leadership with the staff warmly welcome all inquiries negotiations to create electricity Huayi a better future.