ZW6-12 Outdoor column high-voltage vacuum circuit breaker is rated voltage 12kv, three-phase AC 50hz outdoor high-voltage switchgear. Mainly used for load current switching section closing rural network, LAN and small power system, overload current, short circuit current. The overall structure of the three-phase common tank type, three-phase vacuum interrupter were placed in epoxy resin casting body shell is a metal box, this structure is to solve the condensation problem, and easy-to-ground phase and insulation . The product is supported by reclosing controller, it can be combined into coincidence; a segment controller can also be equipped to form a sub-unit is ideal for distribution automation switch.