Shu Guang
Shu Guang
Wenzhou Shuguang Fuse Co., Ltd. is located in Yueqing, Zhejiang Province, the electrical capital of China. As a power technology enterprise integrating research, development, production, and sales, our roots trace back to the Yueqing Shuguang Fuse Factory established in 1992. For over three decades, we have been at the forefront of the WholesaleBigFuses industry, evolving from a local workshop into a global manufacturing powerhouse.
In recent years, the company has developed rapidly. While vigorously developing new products, we have always attached importance to the process flow. High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system. Our products are designated by the Ministry of Electric Power Industry to produce various voltage levels including high-voltage current-limiting fuses and zinc oxide arresters.
Our expertise is backed by rigorous testing. Products have passed inspection at the High-power Test Station of the Electric Power Research Institute, the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center, and the Xi'an High-voltage Electrical Apparatus Research Institute. All performance tests are qualified under international standards.
The global shift toward green energy—wind, solar, and hydroelectric power—has significantly increased the demand for robust circuit protection. High-voltage HRC fuses are now critical components in protecting power inverters and energy storage systems (ESS). As a primary China manufacturer, we provide the specialized H.V. HRC fuses required for oil-immersed transformer back-up protection in these renewable sites.
The Electric Vehicle (EV) market is no longer a niche. This transition requires massive investment in DC fast-charging stations and on-board circuit protection. Our Wholesale EV Fuses are designed to meet the high-speed thermal requirements of modern electric mobility, ensuring safety in both the vehicle and the charging infrastructure.
Modern power grids are becoming "smarter." This trend demands fuses that offer not just physical protection but high reliability and predictability. Industry standards like IEC 60282-1 and DIN 43625 are the benchmarks we strictly adhere to, ensuring our fuses integrate seamlessly with digital monitoring equipment and automated substations.
Years Experience
Global Regions
Certified Quality
Annual Capacity
From the bustling urban grids of Europe to the industrial mines of Africa, WholesaleBigFuses play a vital role.
In high-density cities, Low Voltage Fuse RT18 and Drop Out Fuse Cut Outs are essential for protecting residential transformers. Our products ensure that local power distribution is resilient against surges and short circuits, minimizing downtime for millions of households.
Mines, oil refineries, and steel mills operate under extreme conditions. Our Polymeric Insulators and High-Voltage Current-Limiting fuses are built to withstand corrosive environments and high mechanical stress, providing consistent performance where safety is paramount.
With the global push for Battery Energy Storage Systems (BESS), the need for Tail wire recovery Capacitor protection fuses has surged. These specialized fuses protect expensive capacitor banks from catastrophic failure, a critical need for global energy procurement managers.
Our quality assurance system is complete, having passed ISO9001: 2000 quality system certification. Our technical performance meets:
