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Explore our videos and get to know Dongfa. Discover our focus on electrical components and high-voltage equipment for power distribution applications.
Explore Our ProductsLocated in Yueqing, Zhejiang—the "Capital of China's Electrical Appliances"—Dongfa Intelligent is a specialized manufacturer integrating R&D, production, sales, and service of high-voltage electrical products. Since 2012, the company has been dedicated to the high-voltage electrical sector, growing from core components to complete equipment and from domestic operations to international expansion.
Focused on R&D and manufacturing of high- and low-voltage electromagnetic coils, including CD17, CD10, locking coils, FN25/FN12 load switch coils, and ZN7, ZK1, CKG4 coils.
Expanded production capacity and added finished-product lines, entering high-voltage switchgear manufacturing. Product portfolio now centers on indoor vacuum circuit breakers and load switches.
Introduced an OEM/ODM manufacturing model, providing customized contract manufacturing to clients at home and abroad, with products exported to Southeast Asia, the Middle East, and Africa.
Equipped with advanced production and testing facilities and a robust quality management system, serving power generation, industrial and mining, rail transit, and new energy sectors.
We are a professional high-voltage electrical equipment manufacturer based in Yueqing, China, with a full in-house production chain covering R&D, manufacturing, and sales.
Founded in 2012, we have 14 years of industry experience. We started with high- and low-voltage electromagnetic coils and expanded into high-voltage switchgear manufacturing in 2014.
We hold ISO 9001, ISO 14001, and ISO 45001 certifications with CNAS & IAF recognition, plus official type test reports for core products issued by national authoritative institutions.
Our products meet GB standards and IEC 62271 international standards, compatible with most national grid specifications worldwide.
Our main products include vacuum circuit breakers, load break switches, disconnect switches, earthing switches, air circuit breakers, molded case circuit breakers, miniature circuit breakers, surge protective devices, electromagnetic coils and solenoids, and operating mechanism components.
Yes, we offer full OEM/ODM services with custom branding on nameplates, packaging, and manuals, and accept custom production based on your drawings and specifications.
Trial orders of 1 unit are acceptable for standard products, and OEM MOQ is flexible. Delivery time is 7-15 working days for standard products and 15-30 working days for custom OEM orders.
We mainly serve Southeast Asia, the Middle East, and Africa, and provide full customs documentation and logistics support for export.
With 14 years of experience in high-voltage electrical equipment, Dongfa has built a standardized service system covering pre-sales consultation, order fulfillment, and after-sales support, along with OEM private labeling and one-stop procurement for customers worldwide.
Complete high-voltage switchgear and a wide range of electromagnetic coils can be ordered together with unified delivery and order management, simplifying procurement and improving efficiency.
Products can be customized by voltage level, installation dimensions, and performance parameters to adapt to various specialized application scenarios.
Our vacuum circuit breakers and load break switches ensure safe and reliable power distribution across urban and rural grids, supporting stable electricity supply and reducing outage risks.
Rugged disconnect switches and switchgear components handle heavy loads and harsh environments in industrial and mining operations, ensuring continuous power for critical processes.
Compact and reliable circuit breakers for commercial buildings, hospitals, schools, and municipal facilities, providing safe electrical infrastructure for modern construction projects.
High-voltage solutions for railways, metros, tunnels, airports, and ports. Our vacuum circuit breakers ensure continuous power for critical transportation systems and signaling equipment.
Circuit breakers and switchgear designed for solar, wind, and energy storage plants, enabling efficient and safe renewable energy integration into modern power grids.
Full range of components for switchgear cabinets, including vacuum circuit breakers, load break switches, disconnect switches, and operating coils, supporting one-stop procurement.
Zhejiang Dongfa Intelligent Electrical Technology Co., Ltd. was established in 2012 and specializes in the R&D, manufacturing, and sales of high-voltage electrical equipment, with 14 years of industry experience. Located in Wenzhou, Zhejiang, China, the company covers an area of more than 2,000 square meters and has 17+ employees, including 4 R&D and technical personnel.
The company operates standardized production workshops equipped with 2 professional production lines and 1 set of testing equipment, providing integrated manufacturing capabilities from core components to complete electrical equipment. Its main products include electromagnetic components such as CD17, CD10, and interlocking coils, as well as FN25 and FN12 load switch coils, ZN7, ZK1, and CKG4 coils, indoor high-voltage vacuum circuit breakers, outdoor high-voltage disconnecting vacuum load switches, indoor high-voltage load switches, and indoor and outdoor high-voltage disconnect switches. Products cover voltage levels of 12kV, 24kV, and 40.5kV, with OEM/ODM customization available based on customer drawings, technical specifications, and application requirements.
A vacuum circuit breaker may operate for extended periods without interrupting a major fault, but this does not mean it can be left unchecked. The operating mechanism, control circuits, insulation components and primary connections all contribute to its ability to open and close when required.
A vacuum circuit breaker (VCB) is designed to switch electrical circuits and interrupt fault current within its rated capability. It is widely used in medium-voltage power distribution, industrial facilities and switchgear assemblies where reliable circuit protection is essential.
Reliable medium-voltage power distribution depends on more than a stable electricity supply. Utilities, industrial facilities, and infrastructure operators also need dependable protection against short circuits, overload-related faults, and abnormal operating conditions. A 24kV Outdoor Pole-Mounted Vacuum Circuit Breaker provides a practical switching and protection solution for suitable overhead distribution networks, combining vacuum arc interruption with an outdoor-ready installation design.
Electrical distribution systems differ in voltage levels, operating frequency, installation conditions, and fault-current demands. Selecting suitable switching equipment therefore requires more than matching a single electrical rating. Engineers must consider the complete operating environment, protection strategy, mechanical arrangement, and maintenance requirements before specifying a circuit breaker.
