1. 21 Years Production Experience 2. Competitive Price 3. Quick Delivery 4. ISO9001,CCC 5. ABB Cooperative Company Working Condition    Altitude:1000m and below;   Environmental temperature is from:-15~40°C;   Environmental humidity:   Daily average of relative humidity≤95%   Daily average saturated vapor pressure≤2.2×10-3Mpa   Monthly average of relative humidity≤90%   Monthly average saturated vapor pressure≤1.8×10-3Mp   No operating in such environment as subject to dust, dirt, smog, corrosive/flammable gas, vapor and salt pollution.   Earthquake intensity: No more than 8 degreeTechnical Data    Rated voltage: 10kV (highest voltage 12kV)     Rated current: 630A, 1250A, 1600A.     Rated short circuit breaking current: 20kA, 25kA, 31.5kA.     One minute power frequency withstand voltage (kV): 42 (phase ground), 48 (fracture)     Lighting impact withstand voltage (kV): 75 (phase ground ), 85 (fracture)     4s rated short-time withstand current (effective value): 20kA, 25kA, 31.5kA.    Rated peak value withstand current (peak value): 50kA, 63kA, 80kA.     Rated short circuit making current (peak value): 50kA, 63kA, 80kA.     Rated individual capacitor bank breaking current: 630A     Rated back-to-back capacitor bank breaking current: 400A

Indoor Side loading Vaccum Circuit Breaker (11kV VCB) VS1-12(ZN63A)