Shu Guang
The global demand for High-Quality Current Limiting Fuses has reached unprecedented heights. As nations transition toward smarter, more resilient electrical grids, the role of protective components becomes paramount. In the modern industrial landscape, current limiting fuses are not merely safety devices; they are critical safeguards for multi-billion dollar infrastructures, including data centers, renewable energy plants, and heavy industrial complexes.
From the bustling industrial hubs in North America to the rapidly expanding smart grids in Southeast Asia and Europe, the reliance on high-voltage protection is universal. Current limiting fuses operate by rapidly increasing resistance during a fault, effectively "choking" the short-circuit current before it reaches its peak. This prevents catastrophic thermal and mechanical damage to transformers and switchgear.
Years of Expertise
Export Countries
Performance Tested
Located in Yueqing, Zhejiang Province—the renowned electrical capital of China—Wenzhou Shuguang Fuse Co., Ltd. stands as a beacon of power technology. We are a comprehensive enterprise integrating research, development, production, sales, and service. Our legacy began in 1992 as the "Yueqing Shuguang Fuse Factory," and over the decades, we have evolved into a global leader in circuit protection.
Our commitment to excellence is reflected in every component we manufacture, ensuring that power systems across the globe remain operational and safe under the most demanding conditions.
Contact Our Engineering TeamThe high-voltage fuse industry is currently undergoing a massive transformation driven by three major trends:
We are officially designated by the Ministry of Electric Power Industry to produce high-voltage current-limiting fuses of various voltage levels. Our products have rigorously passed testing at the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center and the Xi'an High-voltage Electrical Apparatus Research Institute.
Our performance standards meet or exceed: ANSI C37.42, DIN 43625, BS 2692, IEC 60282-1, IEC 60644, IEC 60470, and ISO 9001:2000 quality system certification.





International procurement managers seek reliability, cost-effectiveness, and technical compliance. Our high-voltage current-limiting fuses are engineered for diverse localized scenarios:
Protecting step-down transformers from short circuits in municipal power grids, ensuring stable electricity for residential areas.
High-capacity current limiting fuses (HRC) are vital for shielding heavy-duty motors in mining, oil & gas, and manufacturing.
Specialized protection for power factor correction capacitors, preventing equipment ruptures and fire hazards.
Whether it's the high-humidity environments of Southeast Asia or the extreme temperature fluctuations of the Middle East, our products are built to withstand the harshest local conditions through advanced materials and precision engineering.
China’s electrical manufacturing ecosystem is the most robust in the world. As a leading factory, we offer:
Our products are exported to various provincial power companies in China and across a vast international network. We have established strong business footprints in Southeast Asia, the Middle East, Africa, and Europe. The "Shu Rong" brand is synonymous with quality and reliability, consistently ranking at the top of the industry for domestic and export sales.
Explore Global Case Studies