Product Description This series of high-voltage vacuum circuit breaker is applicable to the electric system, control and protect the power supply and distribution in the industrial and mining enterprises, which is three-phase AC 50Hz, 12KV and other frequent operating places. Its characters are as follows: Fast recovery speed of medium strength, high insulating strength, low rate of electric are energy and electric corrosion, long endurance, low maintenance enerty, no explosion, no pollution, low noise, high applicability and so on. ZN28A-10 indoor vacuum circuit breaker can be compatible with XGN-10 and GG-1A (F) fixed type switch cabinet and can be equipped with CD17 electromagnetic operation mechanism and CT19 spring operation mechanism. It can replace the eliminating oil circuit breaker during the reform of oil less and needn't changing. ZN28A-10 indoor vacuum circuit breaker owns several merits, such as low investment, easy installation time-saving and so on. In one word, this circuit breaker is with small investment, easy installation and time saving.,