真空中断路器

Features: The ZN63(VS1)-12 series indoor vacuum breaker is use in indoor HV switchgear, being protection and control units of electric networks and power equipments in industrical and mining establishments. It is suitable for some places with frequently operationg or repeatedly switching short current. Using integrative design for operating mechanism and breaker body, it can be fixed installation unit, or make a cart unit by matching with special chassis. Specifications: 1) Rated voltage: 12KV 2) Rated current: 630A, 1250A, 2500A 4) Rated short-circuit breakingcurrent: 20KA, 31.5KA, 40KA 5) Rated peak withstand current: 20KA, 31.5KA, 40KA 6) Rated insulating capability: a) 1 min dry power-frequency withstand voltage:42KV b) Lightning impulse withstand voltage: 75KV 7)Rated short circuit duration: 4s 8) Rated operating sequence: O-0.3s-CO-180s-CO 9) Mechanical life: 20000 times 10)Secondary circuit power frequency withstand voltage: 2000V 11)Switch on/off mechanism power rated voltage: AC:100,220 DC:110,220