Sell Vacuum Circuit Breaker

Model No.:ZN28A
Product Origin:China
Brand Name:HUYU
Price Terms:FOB, CNF, CIF
Payment Terms:T/T, L/C
Certification:
Description:Product Name: Vacuum Circuit BreakerModel Number: ZN28APlace of Origin: ChinaZN28A - 12, ZN28-12 is a kind of indoor vacuum switch, which is mainly used to control and protect electric equipments in 12KV three-phase AC power system and industrial and mining establishments and substations etc. ZN28-12 is holistic type (the operating mechanism is installed inside switch), ZN28A-12 is suspension type (the operating mechanism and switch body are separately installed in switch cubicle and other bracket, they are connected by rod and transmission shaft.) Features: 1) Rated voltage: 12KV 2) Rated current: 630/1,000/1,250/1,600/2,000/2,500/3,150A 3) Rated frequency: 50HZ 4) Rated short circuit breaking current: 12.5/20/25/31.5/40KA 5) Breaking times of rated short-circuit breaking current: 50times 6) 1min P.F withstand voltage: 42KV 7) Lightning impulse withstand voltage: 75KV 8) Mechanical lifetime: 20,000 times