ZW32Y-12 Vacuum Circuit Breaker

ZW32Y-12/630-20/25 is an outdoor permanent-magnetic-mechanism vacuum circuit breaker for pole-mounted (pillar) dry installation, used as control and protection equipment in 12 kV, 50 Hz AC three-phase high-voltage distribution grids. It handles load current, overload current, and short-circuit current breaking and closing on power lines, and is applied at substations and in industrial and mining enterprise power systems for protection and control purposes.

Rated at 20 kA breaking capacity with 630 A / 1250 A current options, the ZW32Y-12 replaces the ZW32-12’s spring mechanism with a permanent magnetic actuator — extending mechanical life to 30,000 operations, three times that of the standard spring-operated series.