ZW32-12G / T630-20KA vacuum circuit breaker (ZW32-12G / T630-20,630A, disconnectors, outdoor high-voltage, 12KV) Introduction ZW32-12G / 630-20KA outdoor high-voltage vacuum circuit breaker (recloser, slicer) rated voltage 12kV, 15kV three-phase 50Hz ~ 60Hz outdoor distribution equipment, it is suitable for industrial and mining enterprises substation and distribution system for protection and control purposes, and places frequent operation of rural power grids, but also as a ring network power supply unit and terminal equipment, the protective effect of its power distribution, control and electrical equipment. When the circuit breakers and disconnectors in combination, can also be used as sub-switch. Mainly used for breaking, closing power system load current, overload current, short-circuit current. Vacuum interrupter using patented solid sealing technology, external insulation with silicone rubber sleeves, long life, high reliability, good weather resistance, easy to transport. Cost-effective; operating mechanism uses miniaturized, highly reliable spring operating mechanism, the structure is simple. Mechanical life of up to 20,000 times; the use of advanced permanent magnet bodies, mechanical performance, more stable and reliable; and is equipped with a manual opening and closing mechanism, if necessary, on-site manual opening and closing operations. The circuit breaker can be used with a controller supporting Serve coincidence, to achieve remote control, telemetry, remote, remote adjustment four remote functions. Features: no fire and explosion hazards, maintenance-free, small size, light weight (less than 100Kg), long life (10 000), safe, reliable, simple operation, easy installation and maintenance, and use of environmental conditions 1, ambient air temperature: up to + 40 degrees, 40 degrees lower limit; 2, altitude: 2000m (if the altitude increases, the rated insulation level corresponding increase); 3, air pressure: less than 700Pa (equivalent to wind speed 34m / s); 4, the seismic intensity: less than 8 degrees; 5, contamination level: Ⅳ grade; 6, the maximum daily temperature: less than 25 degrees; 7, relative humidity: daily average of less than 95%, on average less than 90% in August, non-flammable, explosive, chemical corrosion and places severe vibration. ZW32-12G / 630-20KA vacuum breaker name and meaning ZW32-12 / 630-12.5, ZW32-12 / 630-20, ZW32-12 / T630-12.5, ZW32-12 / T630-20, ZW32-12G / 630 -12.5, ZW32-12G / 630-20, ZW32-12G / T630-12.5, ZW32-12G / T630-20 ZW32-12