ZW20-12 Outdoor High-voltage Vacuum Circuit Breaker integrates innovative technology and practicality, specially designed for 10kV urban and rural distribution networks. This product consists of the vacuum circuit breaker body, an intelligent controller, and optional external voltage transformers, supporting dual-side PT configuration for distribution network automation ring network lines. Widely used in overhead ring network lines as sectional or tie switches to achieve intelligent load distribution; also suitable for large-user branch lines as boundary switches (watchdog), as well as reclosers and sectionalizers in feeder overhead distribution networks. Integrating remote management, advanced protection control, and communication functions, it can accurately detect milliamp-level zero-sequence current and phase-to-phase short-circuit faults, automatically isolating single-phase grounding and phase-to-phase short-circuit faults to ensure safe and stable operation of the power grid.

Main Functions

• Achieves intelligent monitoring and grid connection through external voltage transformers, intelligent controller, and fully sealed electrical connections.
• Stable breaking in vacuum interrupter, epoxy resin casting ensures explosion-free safety, excellent external insulation.
• Fully enclosed SF₆gas-filled structure with moisture-proof, anti-condensation, and high-temperature humid environment adaptability.
• Reliable operating mechanism, supports suspension or seat-mounted installation, and overcurrent protection tripping function.