In No Particular Order

Hangzhou Shone Vacuum Electrical Apparatus Co., Ltd.

www.shonevac.com

Established as a prominent China-based manufacturing powerhouse, Hangzhou Shone Vacuum Electrical Apparatus Co., Ltd. specializes in the engineering, custom design, and large-scale factory production of high-performance vacuum interrupters for medium-voltage vacuum circuit breakers (VCB), load break switches, and contactors. Operating advanced cleanroom assembly environments and state-of-the-art ceramic-to-metal brazing lines, Shone Vacuum integrates rigorous quality testing systems to ensure all products conform to stringent IEC international standards. The factory provides full OEM/ODM options, tailoring contact materials, mechanical endurance specs, and structural dimensions to match custom client requirements across global electrical equipment, power grids, and industrial substations.

Eaton Corporation

Eaton maintains a globally recognized electrical engineering division dedicated to designing specialized vacuum switching components for power distribution hardware. Their product lineup features advanced interruption technologies engineered for medium-voltage circuit breakers, auto-reclosers, and switchgear assemblies. With extensive research facilities in North America and Europe, Eaton delivers tailored electrical interruption units designed for harsh utility networks, renewable energy infrastructure, and complex industrial substations requiring precise current interruption ratings.

Siemens Energy

Operating extensive international production plants, Siemens Energy develops high-grade vacuum interrupter bottles utilized in power distribution switchgear worldwide. The company utilizes advanced vacuum sealing methods, automated contact alloy manufacturing, and specialized ceramic housings engineered to withstand high dielectric stress. Their interrupter components are widely integrated by third-party switchgear panel builders, electrical equipment integrators, and heavy industrial utility providers seeking standardized electrical switching mechanisms.

Shaanxi Baoguang Vacuum Electric

Shaanxi Baoguang Vacuum Electric Co., Ltd. serves as an established China manufacturer focusing on specialized vacuum switching hardware and ceramic interrupter assemblies. Operating large-capacity factory facilities, the enterprise delivers high-volume production for circuit breakers, railway electrification systems, and power grid switchgear. Their catalog covers a comprehensive spectrum of current ratings and structural dimensions suited for wholesale suppliers, industrial contract projects, and specialized switchgear assembly plants.

Meidensha Corporation

Headquartered in Japan, Meidensha Corporation manufactures technical vacuum interrupters engineered for medium and high-voltage circuit interruption. Drawing upon long-standing research in axial magnetic field electrode structures and specialized contact materials, Meidensha supplies vacuum interruption components across global power utilities, industrial sub-stations, and commercial electrical infrastructure requiring precise short-circuit breaking capabilities and high mechanical longevity.