HZW32 Outdoor Pole-mounted Vacuum Circuit Breaker is a 12kV rated, three-phase AC 50Hz outdoor high-voltage distribution device. It is mainly used to break and close load current, overload current, and short-circuit current in power systems. It is suitable for protection and control in substation and industrial/mining enterprise distribution systems, and is especially ideal for urban and rural grid construction/renovation and locations requiring frequent operation.

Key Features

Three-phase pillar-type fully enclosed structure with excellent sealing performance, enhanced moisture-proof and anti-condensation capability, particularly suitable for severe cold or humid regions

Stable and reliable breaking performance, maintenance-free, small size, light weight, long service life, high/low temperature resistance, UV resistance, and strong anti-aging properties; operating mechanism is housed in a sealed mechanism box, eliminating corrosion issues and improving reliability

Can be paired with an intelligent controller to achieve distribution automation; the circuit breaker can be equipped with two-phase or three-phase current transformers for overcurrent or short-circuit protection, and also to supply current sampling signals to the intelligent controller; metering current transformers can be added according to user requirements

Applicable Standard

GB/T 1984 High-voltage alternating-current circuit-breakers

Technical parameters

Applicable environment

Temperature: ± 40 ℃;

Pollution Level: IV

Relative humidity: daily average not more than 95%, monthly average not more than 90%

Seismic grade: 8

Altitude: ≤ 5000m

No flammable, explosive hazard, chemical corrosion place