spring drive mechanism Vacuum Circuit Breaker Mechanism Click to enlarge image Origin China Model Number MD. J88 Brand Name MDV electrical machinery parts for circuit breaker Name: MD. J88 spring dirve mechanism Technology Parameter: Output rotate angle: 50°55° Output distance: 67. 5mm Closing work: 320380J Rated voltage: 40. 5KV Rated current: 1250-1600A Rated short-time breaking current: 31. 5KA apply to Chinese Model ZW50-40. 5 Outdoor VCB please contact us for more kind of this product and technology paramet