VCB vacuum circuit breaker ZN28A-12 series of rated voltage 12/40.5 kV vacuum circuit breaker, three-phase ac 50 hz indoor high voltage switch equipment, is the introduction of Germanys Siemens technology products. The structure of circuit breaker Simple open circuit ability, long service life, operating function is all ready, no explosion danger, convenient maintenance, suitable for power plant, substation and other electric power transmission and distribution system of control or protection switch, especially in open circuit important place of load and frequent operation. Our products com
VCB Vacuum Circuit Breaker