Shu Guang
As the world transitions toward Smart Grids and Renewable Energy, the demand for reliable circuit protection has reached an all-time high. Modern industrial infrastructures require more than just standard fuses; they need precision-engineered components capable of handling high-power transients and protecting sensitive digital equipment.
The global industrial fuse market is evolving rapidly, with a significant shift toward Direct Current (DC) protection for Electric Vehicles (EV) and Energy Storage Systems (ESS). As a leading ODM manufacturer in China, Wenzhou Shuguang Fuse Co., Ltd. is at the forefront of this transformation, providing specialized solutions that meet international standards such as IEC, ANSI, and DIN.
Wenzhou Shuguang Fuse Co., Ltd. is located in Yueqing, Zhejiang Province, the electrical capital of China. We are a power technology enterprise integrating research, development, production, sales and service.
The predecessor of Wenzhou Shuguang Fuse Co., Ltd. was "Yueqing Shuguang Fuse Factory" established in 1992. For over 30 years, we have dedicated ourselves to perfecting the art of electrical protection, growing from a local factory into a globally recognized ODM supplier.
In recent years, our company has developed rapidly, with economic and social benefits improving significantly. We continue to deepen and improve our quality management system, ensuring that every product exceeds long-term reliability expectations. While vigorously developing new products, we have always attached maximum importance to process flow and material purity.
We utilize high-purity silver ribbons and specialized silica sand to ensure optimal quenching of arcs and precise melting characteristics.
Our sophisticated testing equipment serves as the backbone of our quality assurance, monitoring every parameter from resistance to thermal stability.
We can customize new products at any time according to user needs, tailoring voltage ratings, dimensions, and breaking capacities.
We are designated by the Ministry of Electric Power Industry to produce high-voltage fuses, zinc oxide arresters, and high-voltage insulators. Our products have passed rigorous tests at the Electric Power Research Institute and the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center.





International procurement teams are increasingly seeking suppliers who can provide environmentally friendly and high-efficiency fuses for wind farms and solar arrays.
Modern power grids require "intelligent" protection. We are researching integrated sensors for real-time fuse health monitoring to prevent downtime.
Rapid urbanization in SE Asia and Africa is driving the need for compact, high-breaking capacity fuses for crowded city substations.
Providing critical backup protection for medium voltage transformers against overcurrent and short circuits.
Specialized HRC fuses designed for the unique load profiles of solar inverters and wind turbine converters.
Ensuring the safety of high-power motors and capacitor banks in manufacturing environments.
Drop-out fuses and lightning arresters protecting rural and urban overhead power distribution networks.
Choosing the right manufacturer is critical for long-term project success. As a top-tier factory in the "Electrical Capital," we offer unique advantages that Western competitors often cannot match:
Our products are exported to various provincial power companies in China and internationally to:
We rank among the top in the same industry for domestic and international sales volume.