ZW32-12 column voltage vacuum circuit breaker for AC 50Hz, voltage three-phase power system 10 ~ 12kV as breaking, closing load current purposes, ZW32 vacuum circuit breaker with overload and short circuit protection to meet the control and measurement requirements, also enables remote control and monitoring. For substation and distribution systems for industrial and mining enterprises and rural power grids with the protection and control of the frequent operation places. ZW32-12 column voltage vacuum circuit breaker with spring operating mechanism, can be manually operated, electric operation and remote open and close operations. Can be installed in a vacuum breaker isolation 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, and 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, one of the installation can be. (1) above sea level is not higher 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.