ZW8-12/630A outdoor high voltage vacuum circuit breaker I. Overview ZW8-12 series outdoor high voltage vacuum circuit breaker (hereinafter referred breaker) for the rated voltage of 12kV, three-phase AC 50Hz three-phase power system, mainly used for breaking load current closing rural network, urban and small power system, overload current and short circuit current. The overall structure of the product box for the three-phase, three-phase vacuum interrupter in a metal box, use SMC white insulation and insulation materials insulation, reliable performance, high dielectric strength. Circuit breaker can be equipped according to user needs isolation switch or anti-surge protection, and other delay. Breaker spring mechanism can be used manually or electric spring mechanism, electric spring mechanism can install a wireless remote control. Breaker according to user requirements, and the corresponding controller with integral automatic reclosers, segmentation, etc., to achieve distribution automation. Second, the use of environmental conditions 1, ambient air temperature: up to +40 degrees, the lower limit of -40 degrees; 2, altitude: ≤ 2000m (if the altitude increases, the rated insulation level corresponding increase); 3, pressure: less than 700Pa (quite wind speed 34m / s); 4, seismic intensity: no more than 8 degrees; 5, the contamination level: Ⅳ level; 6, the maximum daily temperature: less than 25 degrees; 7, relative humidity: daily average of not more than 95%, on average not more than 90% in August, non-flammable, hazardous explosions, chemical corrosion and severe vibration. If any questions or more detailed parameters and prices, please contact the Customer Service Department!