Key Specifications/Special Features: General: ZN63A(VS1)-12 indoor AC high pressure vacuum breaker is a kind of indoor high pressure switch equipment It is of three-phase AC, 50Hz, with rated voltage of 7.2 to 12kV It is used as protection and control element in electric wire netting equipment, power equipment of industrial and mineral enterprises ZN63S-12(VS1+) indoor AC high pressure vacuum breaker can perform frequent operations with multi-breaking and quick on-switching ability Main technical data: Rated voltage: 12kV Rated frequency: 50Hz Rated lighting impulse withstand voltage (peak value): 75kV Rated instantaneous power frequency withstand voltage (one minute): 42kV Rated short circuit current lasting time: four seconds Secondary circuit power frequency withstand voltage (one minute): 2, 000V Main Export Markets: -Eastern Europe -North America -Mid East/Africa -Central/South America -Asia -Western Europe -Australasia Primary Competitive Advantages: -Strong and Professional R&D Department -Strict and Smooth Quality Control -Superior Cost Performance -Super Perfect Service and Strategic Backup Plan -Experienced Staff -Guarantee/Warranty -International Approvals -Small Orders Accepted