Shu Guang
Advanced circuit protection components for global industrial infrastructure.
Understanding the vital role of PtFuses (Power Transformer Fuses) in the modern energy landscape.
In the current global industrial environment, the demand for ODMPtFuses and high-voltage circuit protection components has surged exponentially. As nations upgrade their power grids to accommodate renewable energy sources like wind and solar, the need for stable, high-performance fuses becomes critical. PtFuses are the "silent guardians" of power transformers, preventing catastrophic failures during overloads or short circuits.
Current industry trends indicate a shift toward smart grid compatibility and miniaturization. Modern procurement requirements are no longer just about the hardware; they are about technical precision, adherence to international standards like IEC 60282, and the ability to customize solutions (ODM) for specific local grid conditions in regions like Southeast Asia, the Middle East, and Europe.
Located in Yueqing, the electrical capital of China, we provide unmatched expertise.
Established in 1992 as Yueqing Shuguang Fuse Factory, we have over three decades of specialized experience in high-voltage technology.
We are a power technology enterprise integrating research, development, and service. We specialize in tailoring products to meet specific user needs.
Our products are exported to Southeast Asia, the Middle East, Africa, and Europe, maintaining top industry rankings for sales and reliability.
Years of Expertise
International Standards
Exporting Countries
Quality Inspected
Wenzhou Shuguang Fuse Co., Ltd. continuously deepens its quality management system. We use high-quality raw materials and sophisticated testing equipment to ensure every performance indicator meets or exceeds technical expectations. Our "Shu Rong" brand has earned a prestigious reputation globally.
Our facility is designated by the Ministry of Electric Power Industry to produce various voltage levels of current-limiting fuses, capacitor protection fuses, and zinc oxide arresters. We bridge the gap between high-volume manufacturing and precision engineering.
Where our high-voltage solutions provide mission-critical protection.
From oil-immersed transformer backup protection in remote industrial zones to high-voltage HRC fuses for urban EV charging stations, our products are engineered for diverse environments. We understand the specific procurement needs of provincial power companies in China and international utility providers who require DIN or IEC standard-conforming products.
Adhering to the most rigorous international technical conditions.
Our products have passed tests at the high-power test station of the Electric Power Research Institute, the National High-voltage Electrical Apparatus Quality Supervision Center, and the Xi'an High-voltage Electrical Apparatus Research Institute. Our technical performance meets:





Wholesale opportunities for international distributors and power contractors.
As a leading China ODMPtFuses supplier, Wenzhou Shuguang Fuse Co., Ltd. is more than just a manufacturer; we are a strategic partner in global electrification. Our commitment to IS09001: 2000 quality systems ensures that every fuse, from 12kV to 36kV, provides the authoritativeness and reliability required by high-stakes electrical infrastructure.
The global energy sector is transitioning towards smarter, safer, and more efficient distribution. Whether you are a procurement officer seeking reliable HRC fuses or a utility company looking for customized ODM transformer protection devices, our factory in Yueqing is equipped to handle your most demanding requirements. We sincerely welcome customers from home and abroad to discuss cooperation and work together for the prosperity of the electric power industry.