Vacuum Circuit Breaker Outdoor

Juhui Power Equipment Co., Ltd. manufactures high-voltage switchgear for outdoor applications in different regions. Our factory is located in Yueqing, Zhejiang, covers 1,500 square meters, and has its own research team. The Vacuum Circuit Breaker Outdoor is designed for AC 50Hz, 40.5kV three-phase power systems. It mainly switches load current, overload current, and short-circuit current. It is suitable for standard regions as well as cold areas. The ambient temperature can reach +40°C at the upper limit and -30°C at the lower limit for normal regions, while the lower limit can reach -40°C in cold regions. The applicable altitude is below 1,000 meters. For higher-altitude applications, the insulation level can be increased accordingly. The wind pressure is below 700Pa, corresponding to a wind speed of 34m/s. The applicable seismic intensity is below 8 degrees, the pollution grade is Class IV, and the maximum daily temperature difference is no more than 25°C. These conditions cover a wide range of outdoor installation environments.

The Vacuum Circuit Breaker Outdoor uses vacuum arc extinction, with a rated mechanical life of 10,000 operations. Its structure is simple and maintenance-free, with a long service cycle, good insulation, and strong resistance to contamination. The operating mechanism is available in spring or electromagnetic versions and supports frequent operation. The vacuum switching structure does not present a fire or explosion risk during operation. Built-in current transformers are available, with metering accuracy up to Class 0.2. The unit also supports three-phase differential protection. A built-in condensation controller helps maintain stable operation under changing temperature and humidity conditions. It is suitable for substations, industrial power systems, and applications requiring frequent switching. For cold-region applications, customers should provide the lowest operating temperature during the selection process. Drawings or samples can also be provided for customized production. The MOQ is 1 unit or 1 set.

For applications in cold areas, the Vacuum Circuit Breaker Outdoor can be selected according to the required low-temperature conditions. Customers should provide the lowest ambient temperature and installation altitude so that the required insulation level can be determined. Our research team can also customize the unit according to specific requirements. The customization process starts with technical discussions, followed by a technical proposal and quotation. After confirmation, the order is signed and production is arranged. Any special requirements can be included in the technical agreement to keep the production requirements clear.

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