Our indoor high-voltage vacuum circuit breaker series is primarily used in the indoor power distribution systems of industrial/mining enterprises, power plants, and substations, serving as the core protection and control device for switching load and fault currents. The range covers fixed, handcart, side-mounted, and three-position vacuum circuit breakers, with voltage ratings from 12kV to 40.5kV.
Featuring an integrated sealed pole column design, the breakers achieve compactness, high reliability, and maintenance free operation, with a mechanical life of up to 20,000 operations — suitable for frequent-switching applications. They are compatible with switchgear such as KYN28 and XGN series, and customized production and technical selection advice are available based on cabinet dimensions, operating voltage, and control mode.
Wenzhou Xubian Electric Co., Ltd. is a technology‑driven manufacturer specializing in the production, sales and after‑sales maintenance of high‑low‑voltage complete power distribution equipment.
We have a dynamic and innovative team for R&D, design, management and marketing, backed by solid R&D and production competence.
Following our quality policy: “Survival through Quality, Development through Innovation, Continuous Improvement, Customer Satisfaction”, we enforce strict control over all production stages to ensure 100% qualified finished goods.Our workshop is well‑equipped with full‑range processing facilities, testing apparatus and advanced inspection solutions.