ZW43-12 outdoor column high-voltage vacuum circuit breakers for AC 50Hz, voltage three-phase power system 10 ~ 12kV as breaking, closing load current purposes, it has overload and short circuit protection to meet the control and measurement requirements, but also to achieve remote control, monitoring and so on. For substation and distribution systems for industrial and mining enterprises and rural power grids with the protection and control of the frequent operation places. ZW43 vacuum circuit breaker with spring operating mechanism, can be manually operated, electric operation and remote open and close operations. Can be installed in the side of the isolation circuit breaker switch, forming an outdoor outdoor high voltage vacuum circuit breaker 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. The use of vacuum interrupter technology, volume, patent solid seal long life, high reliability, good weather resistance, easy to transport; 2. The operating mechanism uses miniaturized, highly reliable spring operating mechanism, simple structure, mechanical life of up to 10000; 3. vacuum interrupter, solid insulation, small size, light weight, breaking capacity, high insulation level; 4. switch housing made of stainless steel or spray treatment, corrosion resistance, weather resistance; 5. can be applied to the isolation switch, a visible fracture and reliable interlock to form a combination of electrical; 6. controller supporting realize remote control, telemetry, remote, remote tune "four remote" feature. Technical specifications / parameters] ◆ Rated voltage: 12kV ◆ 1min power frequency withstand voltage (dry test / wet test): 42 (fracture 49) / 30kV ◆ lightning impulse withstand voltage (peak): 75 (fracture 85) kV ◆ Rated current: 630A ◆ rated short-circuit breaking current: 20kA ◆ rated short-circuit current (peak): 50kA ◆ 4S rated short time withstand current: 20kA ◆ Rated peak withstand current: 30kA ◆ Rated operating sequence: min -0.3s- combined points -180s- combined points ◆ rated short-circuit breaking current breaking times: 50 times ◆ Mechanical life: 10000 ◆ rated operating voltage: 220 (DC, AC) V ◆ auxiliary circuit Rated voltage: 220 (DC, AC) V ◆ too Current release Rated current: 5A ◆ current transformer ratio: 200/5; 400/5; 600/5 (protection level: 3; Measurement level: 0.5) ◆ Operation: spring-operated (manual / electric)