ZN28-12series Indoor High- Voltage Circuit Breaker
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ZN28-12 series vacuum circuit breaker is the indoor high voltage switch-gear with rated voltage 12kV and three-phase AC 50Hz , which is mainly used for making and breaking load current, over-current, short-circuit current rural network, city network and miniature power system. IThey are mainly installed in the regular type switch cupboard, to support the industrial and mining enterprises, the power plant and transformer substation as to make the using of the protection and control of the electric equipment , and try out making and breaking the place of important load and frequent operation.