
High Voltage Indoor Vacuum Circuit Breaker 12kv 630A. High Mechanical Life: 30,000 mechanical cycles with optional permanent magnetic actuator for frequent operations. Vacuum Arc Quenching: Superior 12kV arc quenching using vacuum interrupter and chain mechanism. Flexible Power Supply: Spring energy storage mechanism supports AC/DC energy storage or manual operation. Versatile Installation: Can be used as fixed installation unit or mounted on chassis as a handcart unit. High Altitude Capability: Designed specifically for high altitude applications and frequent switching places. Comprehensive Protection: Features conventional circuit breaker, failure protection, and overcurrent protection functions. Robust Safety Interlocks: Enhanced safety with reliable interlock functions and vacuum-sealed maintenance-free chamber. OEM & ODM Service: Accepts small trial orders and provides full customization from samples.