Shu Guang
Shu Guang
Innovative designs meeting global safety standards IEC, DIN, and ANSI.
Wenzhou Shuguang Fuse Co., Ltd. is strategically located in Yueqing, Zhejiang Province, widely recognized as the Electrical Capital of China. As a premier power technology enterprise, we integrate research, development, production, sales, and service into a seamless industrial ecosystem.
Our roots trace back to the "Yueqing Shuguang Fuse Factory" established in 1992. Over three decades, we have evolved from a local manufacturer into a global player in the high-power fuse industry. Our experience spans the transition from traditional grid protection to the modern demands of high-speed rail, electric vehicles, and renewable energy storage systems.
As a leading China ODM High Power Fuses Factory, we provide tailored solutions for complex engineering requirements, ensuring that every fuse link we produce contributes to the safety and reliability of critical infrastructure worldwide.
The global transition toward renewable energy (Solar, Wind, Hydro) has drastically increased the demand for High Voltage High Rupturing Capacity (HRC) fuses. These components are essential for protecting inverters and energy storage systems (ESS) from catastrophic faults.
Electric Vehicles (EVs) and charging infrastructure require specialized DC fuses that can handle high currents and fast-tripping requirements. Our factory is at the forefront of developing compact, vibration-resistant fuses for the automotive sector.
Smart factories and automated manufacturing lines rely on stable power. Precision current-limiting fuses prevent equipment downtime and protect high-value robotic systems from surges.
International buyers are moving away from simple "off-the-shelf" products. The modern procurement landscape demands ODM (Original Design Manufacturing) capabilities where factories can customize tripping characteristics, physical dimensions, and mounting styles to fit specific proprietary systems. Reliability, traceabilty, and compliance with IEC/DIN standards are no longer optional—they are the baseline for global trade.
Ensuring compliance with the most rigorous international electrical safety protocols.
It is designated by the Ministry of Electric Power Industry to produce high-voltage fuses of various voltage levels, including high-voltage current-limiting fuses, high-voltage fuses for power capacitors, voltage transformer protection fuses, zinc oxide arresters, drop-out fuses, and high-voltage insulators.
Our products have passed the high-power test station of the Electric Power Research Institute of the Ministry of Electric Power, the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center, the Xi'an High-voltage Electrical Apparatus Research Institute, and the High-Voltage Electrical Apparatus Laboratory. All performance tests are qualified and recorded.
The highest technical performance meets: ANSIC37,42, DIN43625, BS2692, IEC282-2-1995, IEC60644, IEC60470, IEC60282-1, IEC269-2 and GB15166.1, GB15166.2, GB15166.5, GB13593, DL/T640-1997, VDE0636 standards. Our quality assurance system is complete, having passed ISO9001: 2000 quality system certification.
Combining decades of expertise with China's world-leading supply chain efficiency.
From initial CAD design to prototype testing and mass production, we provide a complete OEM/ODM service tailored to your proprietary specifications.
We use high-purity silver for fuse elements and high-strength alumina ceramics for bodies, ensuring optimal thermal management and breaking capacity.
Being in Yueqing allows us to source specialized components instantly, reducing lead times for even the most complex high-power fuse orders.
Our products are used in everything from national power grids to remote offshore wind farms, proving their reliability in extreme environments.
Our HRC fuses are widely used in oil-immersed and dry-type transformers. The current-limiting characteristics ensure that faults are cleared in milliseconds, protecting expensive winding and cooling systems.
Voltage surges in capacitor banks can lead to explosions. Our specialized capacitor fuses (XRNP series) provide high-speed isolation to prevent cascading failures in power factor correction units.
In the harsh environments of mines and steel mills, dust and vibration are constant. Our polymer insulators and ruggedized fuse holders are designed for high-voltage reliability where others fail.
High-speed rail requires high-voltage fuses that can handle frequent load cycling and significant mechanical stress. Our China factory provides optimized solutions for the railway sector.
The company continues to deepen and improve the quality management system. While vigorously developing new products, it has always attached importance to the process flow. High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system. All performance indicators are in line with the corresponding technical conditions, and new products can be customized and produced at any time according to user needs. "Shu Rong" brand products have enjoyed a high reputation among domestic and foreign users.
The products are exported to various provincial power companies in China. A complete sales network has been formed throughout the country, and good business contacts have been established. New high-voltage fuses and high-voltage current-limiting fuse products are exported to Southeast Asia, the Middle East, Africa, Europe and other countries and regions, and the domestic product sales rank among the top in the same industry.
The company adheres to the principle of "Development by science and technology, and survival by quality". We sincerely welcome customers from home and abroad to discuss cooperation and work together for the prosperity and development of the electric power industry.
From insulators to lightning arresters, we provide comprehensive circuit protection.
