General

UNVS1 (ZN63) series indoor vacuum circuit breaker is a three-phase AC 50-60Hz, rated voltage of 3.3kV, 6kV, 10kV, 11kV, 12.5kV, 13.8kV,15kV,17.5kV, 24kV, 33kV, 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.

Standards 

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). 

Technical data sheet

1) Test voltage according DIN VDE 0670, part 1000, list 2

2) 4000 A with forced cooling

3) 3150 A with forced cooling in AP technology

4) Higher values on request

5) 360 mm for fixed, 280 mm for withdrawable Version

6) Circuit-breaker with heat sink 616 mm

7) Withdrawable Version

8) Circuit-breaker with heat sink 634 mm