
High Voltage Indoor Vacuum Circuit Breaker for Reliable Performance. Vacuum Arc Extinction: Adopts vacuum arc extinction and composite insulation technology for high insulation performance. Compact Miniaturized Design: Small volume and light weight, suitable for cabinets with width 500mm and depth 900mm. Integrated Functionality: Integrates isolating switch, circuit breaker, earthing switch, and high-voltage sensor into one unit. High Mechanical Reliability: Mechanical life reaches 10,000 times with interlocking mechanisms to prevent misoperation. Flexible Operation Modes: Universal for AC and DC power supplies, supports electric, manual, and remote control operations. Visual Break Indication: Rotary isolating switch provides a clearly visible break after opening for safety. Low Energy Consumption: Uses new spring mechanism with low power energy storage motor for high reliability. Comprehensive Safety Protection: Interlocking mechanism between circuit breaker and cabinet door ensures operator safety.