XGN2-12 High voltage AC switchgear fixed type metal-enclosed switchgear applied to the 3.6kV~ 12kV three phase AC 50/60Hz system to receive and distribution power energy The device is extensive used for industry. civil cable looped network and terminal power supply, especially for power receipt and distribution for urban residential community, secondary mini-power substation, switching station, industrial and mining enterprises, shopping mall, airport, subway, small and medium power station, hospital, stadium, railway, tunnel etc.. The equipment is the newest metal closed switchgear use air insulation, and it has many advantages such as: simple structure, flexible operation, easy installation, reliable interlocking and so on. Item Unit Rated parameters Model of circuit breaker and isolating switch ZN28-12 VDS-12 Gn30-12G Rated voltage KV 12 Rated current A 630 1250 630 1250 630 1250 Rated short-circuit Breaking current KA 20 31.5 20 31.5 Rated short-circuit Marking current KA 50 80 50 80 Rated dynamic current maximum KA 50 80 50 80 50 80 4S rated thermal stability current KA 20 31.5 20 31.5 20 31.5 Rated insulation level Power-frequency withstand strength in 1 min KV interphase and opposite type: 42 fracture type: 48 Lightning-impulse withstand strength interphase and opposite type: 75 fracture type: 85 Outline size (H*W*D) mm 2300*900*1000 2300*800*1000.