Shu Guang
Wenzhou Shuguang Fuse Co., Ltd. is strategically located in Yueqing, Zhejiang Province—widely recognized as the "Electrical Capital of China." As a pioneering power technology enterprise, we integrate research, development, production, sales, and comprehensive after-sales service.
Our journey began in 1992 as "Yueqing Shuguang Fuse Factory." Over three decades, we have evolved from a local workshop into a global powerhouse in circuit protection, driven by innovation and a commitment to electrical safety.
The Global Industrial Status: In the modern era of rapid industrialization and the global transition towards renewable energy, the demand for High-Quality Transformer Fuses has reached unprecedented heights. As power grids worldwide undergo modernization, the role of reliable circuit protection becomes the backbone of infrastructure stability. From the bustling megacities of Europe to the emerging industrial hubs in Southeast Asia, transformer fuses are the silent guardians of multimillion-dollar electrical assets.
The push for "Smart Grids" in North America and the EU requires precision-engineered fuses that can handle fluctuating loads from wind and solar inputs.
The rise of Electric Vehicles (EV) has created a secondary market for specialized high-voltage fuses used in charging stations and battery protection.
Digitalization of fuse monitoring and the move towards environmentally friendly materials (Polymeric vs. Porcelain) are reshaping the factory output.
A transformer fuse is not merely a sacrificial link; it is a sophisticated device designed to differentiate between transient inrush currents and catastrophic faults. China's transformer fuse factories, led by pioneers like Shuguang Fuse, have invested heavily in R&D to ensure that our current-limiting fuses and drop-out cutouts meet the stringent requirements of IEC 60282 and DIN 43625 standards. This technical expertise ensures that when a fault occurs, the interruption is localized, preventing widespread blackouts and secondary fire hazards.
International procurement officers from utility companies and industrial EPC contractors are shifting their focus from "lowest cost" to "total cost of ownership." This entails looking for factory-direct suppliers who offer:
Our products pass through high-power test stations and the National High-voltage Electrical Apparatus Quality Supervision Center.
Economies of scale and integrated supply chains allow us to offer premium protection at a fraction of Western brand prices.
Continuous investment in silver-element technology and high-purity quartz sand filling for superior arc quenching.
Our fuses are utilized in diverse environments globally. In the Middle East, our insulators and fuse cutouts are engineered to withstand extreme UV radiation and sandstorms. In Southeast Asia, we provide solutions for rural electrification projects where humidity and tropical storms demand high-durability porcelain and polymeric materials. Meanwhile, in European markets, our DIN-standard HRC fuses are integrated into compact secondary substations for urban distribution.
As a China Transformer Fuse Factory, we don't just sell products; we provide peace of mind. Our 1992 origins mean we have witnessed the evolution of the grid first-hand. We understand that a fuse failing to clear a fault could mean millions in damages, which is why "Quality for Survival" is more than a slogan—it is our operational directive.
Meeting the world's most rigorous electrical standards including IEC, DIN, ANSI, and BS.





High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system.
Power Substation & Distribution Protection
Industrial High-Voltage Motor Control
Renewable Energy Wind Farm Integration
We sincerely welcome customers from home and abroad to discuss cooperation and work together for the prosperity and development of the electric power industry.