... circuit break resonable price, good quanlity test report Introduction, zw32-12 series pillar type outdoor vacuum high-voltage circuitbreaker is a ... than 25 The main technical parameter, projectunitzw32-12/T400-12.5zw32-12/T630-16zw32-12/T630-20rated voltageKV12rated currentA400630630rated short open currentKA12.51620rated ... /s1.2±0.3average closing speed0.6±0.2 ZW32-12 Outdoor Vacuum Circuit Breaker