ZW8-12 high voltage vacuum circuit breaker is rated voltage column for new outdoor 12KV high voltage switchgear equipment, mainly for urban and rural power distribution system and, as a sub, load current, overload current and short circuit current purposes. ZW8 high voltage vacuum circuit breaker is to replace the column of oil-immersed circuit breakers realize the ideal of non-oil products. Silicone rubber outer insulation materials, insulation, reliable, strong anti-contamination ability. ZW8-12 high voltage vacuum circuit breaker column equipped with spring operating mechanism, can be manually operated, electric operation and remote open and close operations. ZW8 vacuum breaker in the installation of isolating switch sides, forming an outdoor high voltage vacuum circuit breaker Outdoor high-voltage isolation switch combinations, increasing the visibility isolated fracture and reliable interlock operation. According to user requirements, ZW8 high voltage vacuum circuit breaker column with the corresponding controller with the composition of the AC high voltage vacuum recloser automatic, automatic segmentation, a self-operating power, is to achieve an ideal distribution automation equipment. Using an external high voltage transformer structure, built can be. ZW8-12 high voltage vacuum circuit breaker column conditions: (1) the altitude of not more than 1000m (2) ambient temperature limit + 40 ℃, the lower limit of -30 ℃ (3) pressure does not exceed 700Pa (equivalent to wind speed 34m / s ) (4) non-recurrent severe shock (5) anti-contamination Level Ⅲ if the special conditions of use, please consult affirm special treatment.