Shu Guang
High-precision H.R.C. fuses engineered for stability and safety.
Wenzhou Shuguang Fuse Co., Ltd., located in the "Electrical Capital" of China (Yueqing), has been a benchmark in the power technology industry since its inception as Yueqing Shuguang Fuse Factory in 1992.
Designated by the Ministry of Electric Power Industry, we integrate research, development, and high-standard production for high-voltage current-limiting fuses and capacitor protection units.
With a presence in Europe, Southeast Asia, the Middle East, and Africa, we are one of the top-ranking exporters in the Chinese fuse industry, serving major provincial power grids.
Our company specializes in a comprehensive range of voltage protection equipment. As a leading China Best Capacitor Fuses Manufacturer, we pride ourselves on products that have passed rigorous evaluations at the High-power Test Station of the Electric Power Research Institute and the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center. Our commitment to quality ensures that every HRC current-limiting fuse and zinc oxide arrester meets international safety benchmarks.
Our quality assurance system is ISO9001:2000 certified, and our technical performance aligns perfectly with ANSI C37.42, DIN 43625, BS 2692, IEC 60282, and VDE 0636 standards. This global compliance makes us a trusted partner for international engineering firms and utility providers.
The evolving landscape of high-voltage capacitor protection.
In the current global industrial era, power quality is paramount. Capacitors are used extensively for power factor correction and voltage stability. However, capacitors are sensitive to over-current and internal faults. This is where Best Capacitor Fuses become critical. They are designed to isolate a failed capacitor unit from the rest of the bank, preventing catastrophic failure and ensuring the continuity of the power system. From high-voltage substations to massive industrial manufacturing plants, the demand for reliable circuit protection is at an all-time high.
Global procurement trends show a shift toward "Smart Grid Compatible" components. Modern buyers are looking for fuses that not only offer traditional protection but also demonstrate high breaking capacity and low power loss. In Europe and North America, there is a significant push for renewable energy integration. Solar and wind farms require specialized capacitor banks to handle fluctuating power inputs, leading to a surge in demand for specialized High Voltage Fuses. China, as a manufacturing powerhouse, provides the ideal balance of cost-efficiency and advanced technological application to meet these rising global needs.
Years Experience
9001:2000 Certified
Countries Served
Testing Qualified
As a China Best Capacitor Fuses Factory, we offer several strategic advantages:
Strict adherence to international standards: IEC, DIN, BS, and ANSI.





Where our fuses provide the ultimate protection shield.
Local application scenarios are vast. In Southeast Asia, our fuses are widely used in urban distribution networks to handle high humidity and temperature variations. In Europe, they are integrated into wind turbine protection systems where precision timing is non-negotiable. Across the Middle East, our zinc oxide arresters and capacitor fuses protect infrastructure from lightning surges and electrical noise in desert environments.
In recent years, Wenzhou Shuguang Fuse Co., Ltd. has prioritized scientific development. We utilize high-quality raw materials and sophisticated testing equipment as the backbone of our quality assurance system. Every performance indicator is monitored, ensuring our "Shu Rong" brand remains a synonym for reliability.
Our R&D focuses on:
From EV Fuses to DIN Standard HRC Fuse Links.
At Wenzhou Shuguang Fuse Co., Ltd., we understand that a capacitor fuse is more than just a component; it is a critical safety device. Our journey from a local factory in 1992 to a global power technology leader is fueled by our core principle: "Development by science and technology, and survival by quality." We sincerely welcome customers from around the globe to discuss cooperation and work together for the prosperity and development of the electric power industry.
Our extensive experience in the Chinese domestic market, combined with our expanding footprint in the international arena, positions us as the China Best Capacitor Fuses Manufacturer for any high-voltage application. Whether you are upgrading an existing substation or designing a new industrial power system, our engineering team is ready to provide the professional expertise and reliable products you need.