UNVS1-12 (ZN63) series indoor vacuum circuit breaker is a three-phase AC 50-60Hz, rated voltage of 33kV, 36kV and 40.5kV indoor switchgear, control and protection for industrial and mining enterprises, power plants and substations , electrical facilities , and for frequent operation place .Adopting VET operating mechanism and circuit breaker integrated , design can be used as a fixed installation unit can also be equipped with special advance mechanism , the com position of handcart unit used. Some of the main circuit can use the whole solid seal post, in order to achieve smaller circuit breakers, high reliability , maintenance—free, can be equipped with UN-P28-12(GZS) and other handcart switch cabinet in the home can also be used with fixed XGN switchgear.
All UNISUN Electric breaker are in conformity with IEC standards, and recommendations IEC60694、IEC6227-100. Breakers in conformity with specific country standards can also be supplied. (IEEE, GB).