High-voltage DC (HVDC) contactors are now crucial in power electronics. This is due to the rapid growth of electric vehicles (EVs), energy storage systems (ESS), and renewable energy. China, a global manufacturing hub, has built a strong market for HVDC contactor suppliers. This article lists the top 10 Chinese manufacturers. It shows their key products, electrical specs, tech strengths, and market positions.
1. Zhejiang HIITIO New Energy Co., Ltd.
HIITIO focuses on high-voltage switching tech. They create DC contactors for energy storage, EVs, and industrial systems. HIITIO’s contactors feature ceramic sealing technology, with current ratings from 20A to 1200A and voltages up to 2500VDC. Their products are known for safety, stability, and top-notch quality, with certifications including UL, CE, CB, SEMKO, and CCC. HIITIO emphasizes innovation with a strong R&D team and advanced manufacturing processes.
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2. Xiamen Hongfa Electroacoustic Co., Ltd.
Hongfa is one of the biggest relay makers in the world. They provide the HFE series of high-voltage DC contactors. These contactors have rated voltages that reach 1500VDC and can handle currents up to 750A. They are designed for high-voltage and high-current switching. This is especially true in EVs and energy storage systems. Their low power consumption and excellent contact reliability are key differentiators.
3. Zhuhai Hanglian Technology Co., Ltd.
Zhuhai Hanglian Technology makes high-voltage DC contactors and relays. They focus on electric vehicles, energy storage systems, and other DC uses. Their contactor series, such as HLDC and HLVDC, support voltage ratings up to 1500VDC and currents up to 800A. Hanglian emphasizes high insulation strength, low contact resistance, and long mechanical life. Their top-notch production and testing facilities meet UL, CE, and CCC standards. This makes them a trusted supplier in local and international markets.
4. Zhejiang Dongya Electronic Co., Ltd
Dongya Electric makes DC contactors and relays. These are used in electric vehicles, DC charging stations, and energy storage systems. Their HVDC contactors support voltages up to 1200VDC and current ratings from 20A to 400A. Key features include ceramic hermetic sealing, double-break contact design, and excellent arc extinguishing performance. Dongya’s products are certified by UL, TUV, and CE, and are known for their durability and cost-effectiveness in both domestic and international markets.
5. LAZZEN Electric (Shanghai Liangxin Electrical Co., Ltd.)
LAZZEN, or Shanghai Liangxin Electric, is a leading provider of smart electrical solutions in China. The company offers a variety of HVDC contactors such as the NDZ3W, NDZ3T, and NDZ3AT series, with rated voltages up to 1000V DC and currents up to 400A. These contactors are widely used in EV charging stations, energy storage systems, and photovoltaic applications. Key features are high breaking capacity, a compact structure, and great arc-extinguishing performance. These qualities make them ideal for tough DC switching environments.
6. Guoli Electric
Guoli Electric makes high-voltage DC contactors. These are used in industrial automation, energy storage, and electric vehicles. Their HVDC products support voltages up to 1500V DC and current ratings up to 600A. These contactors are built to last. They offer high reliability and good arc-quenching. This makes them perfect for tough high-power switching tasks.
7. BYD Co., Ltd.
BYD is a top EV maker. It also produces high-voltage DC contactors for electric vehicles and energy storage systems. Their contactors handle voltages up to 1500V and currents up to 600A. This ensures top performance in EVs, charging stations, and renewable energy systems. As an innovative player, BYD integrates cutting-edge technologies in their contactor products.
8. Sanyou Corporation Limited
Sanyo Electric, part of the Sanyo Group, is a prominent manufacturer of HVDC contactors used in various industrial and EV applications. Their contactors, with voltage ratings up to 1200V DC and current ratings up to 400A, are recognized for their high efficiency, reliability, and longevity in demanding environments such as energy storage and electric vehicles.
9. Delixi Electric
Delixi Electric presents the CDEV6i New Energy DC Contactor. It is ideal for electric vehicle charging stations, automotive battery power systems, and solar power equipment. It has a rated voltage of up to 1000V DC and can handle currents up to 300A. This contactor is great for inverter power control. It also suits high-power DC devices and industrial equipment that need circuit insulation and protection.
10. Zhejiang People Electric Appliance Group Co., Ltd.
People Electric offers a wide variety of power distribution solutions. This includes HVDC contactors for electric buses and big energy projects. Their DC series contactors support up to 1000V and 300A. The company focuses on stable products and flexible customization. This helps meet different application needs.
Conclusion
China’s high-voltage DC contactor industry is vibrant and well-developed. It has both large manufacturers and specialized innovators. These companies especially HIITIO drive technological advancement and global competitiveness. As global demand rises for dependable, high-performance HVDC solutions, Chinese manufacturers are set to influence the future of energy and transportation systems around the world.
