Shu Guang
Shu Guang
Explore our flagship high-voltage protection components, engineered for reliability in extreme electrical environments.
The global demand for Expulsion Type Fuses and high-voltage circuit protection is experiencing an unprecedented surge. As nations modernize their power grids to accommodate renewable energy sources like wind and solar, the need for reliable outdoor distribution protection becomes paramount. China has emerged as the world's manufacturing hub for these components, combining cost-efficiency with rigorous international standards such as IEC60282 and DIN43625.
Current trends indicate a shift toward "Smart Grids." Modern expulsion fuses are now designed with better arc-extinguishing capabilities and environmentally resistant materials. Manufacturers are focusing on polymeric insulators and corrosion-resistant alloys to ensure a service life of over 30 years. The industry is also seeing a transition from traditional porcelain to lightweight composite materials, reducing installation costs and improving safety during fault operations.
International buyers from the Middle East, Southeast Asia, and South America prioritize E-E-A-T compliant suppliers. Reliability is not optional when protecting multi-million dollar transformers. Procurement teams look for factories that provide complete test reports from recognized laboratories like KEMA or the Xi'an High-voltage Electrical Apparatus Research Institute, ensuring that every batch meets the peak technical performance required for national grid stability.
Located in Yueqing, Zhejiang Province—the renowned "Electrical Capital of China"—Wenzhou Shuguang Fuse Co., Ltd. is a power technology enterprise integrating research, development, production, sales, and service. Our journey began in 1992 as "Yueqing Shuguang Fuse Factory," and for over three decades, we have remained at the forefront of the high-voltage protection industry.
We are designated by the Ministry of Electric Power Industry to produce high-voltage fuses of various voltage levels. Our technical depth allows us to customize solutions for power capacitors, voltage transformers, and zinc oxide arresters, ensuring your infrastructure is shielded by decades of manufacturing expertise.
Our commitment to quality is backed by rigorous testing and international certification.
Our products meet the highest technical performance standards: ANSIC37.42, DIN43625, BS2692, IEC60282-1, IEC60644, IEC60470, and GB15166 series. This ensures compatibility with global power infrastructure from Europe to the Americas.
All products have passed 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.
Shuguang Fuse operates a complete ISO9001:2000 quality system. From raw material sourcing to final batch testing, every step is monitored to guarantee that the "Shu Rong" brand delivers 100% performance on-site.
The strategic advantages of Yueqing's industrial cluster combined with our 30+ years of R&D.
Expulsion fuses are critical for Rural Electrification in Africa, Industrial Power Parks in Southeast Asia, and Renewable Energy Substations in Europe. Our designs account for environmental variables such as high humidity, salt spray in coastal regions, and extreme temperature fluctuations, ensuring consistent "Drop-out" action when a fault occurs.
By manufacturing in Yueqing, we leverage a massive supply chain of high-purity copper, specialized ceramics, and advanced polymers. This allows Wenzhou Shuguang Fuse Co., Ltd. to offer high-performance products at a fraction of the cost of Western competitors, without compromising on technical specifications or safety margins.
We don't just sell standard parts. Our engineering team can customize fuse-link speeds (Type K, Type T) and mounting brackets to fit legacy infrastructure. In recent years, we have optimized our oil-immersed transformer fuses and EV fuses to meet the growing demands of the green energy revolution.
Years Experience
Export Countries
Factory Tested
Industry Rank in China
Our fuses in action across global power distribution networks.
In recent years, Shuguang Fuse 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 "Shu Rong" brand products have enjoyed a high reputation among domestic and foreign users. We adhere to the principle of "Development by science and technology, and survival by quality." We sincerely welcome global partners to discuss cooperation for the prosperity of the electric power industry.
Reliable components for every stage of power distribution and protection.
As we look toward 2030, the expulsion type fuse industry is projected to grow by 6.5% annually. The integration of AI-driven fault detection and the expansion of Electric Vehicle (EV) infrastructure are creating new paradigms for fuse manufacturers. Wenzhou Shuguang Fuse Co., Ltd. is already investing in smart manufacturing to meet these challenges, ensuring our clients receive the most advanced, authoritative, and reliable power protection solutions on the market.
