Shu Guang
Shu Guang
Wenzhou Shuguang Fuse Co., Ltd., established in 1992 (formerly Yueqing Shuguang Fuse Factory), is strategically located in Yueqing, Zhejiang Province—widely recognized as the "Electrical Capital of China." For over three decades, we have evolved into a powerhouse technology enterprise integrating research, development, production, and global service.
As a designated manufacturer by the Ministry of Electric Power Industry, we specialize in high-voltage fuses, current-limiting fuses, and specialized protection for power capacitors and transformers. Our commitment to quality is backed by ISO9001:2000 certification and rigorous testing at the highest national power laboratories.
As nations worldwide transition to smart grids and renewable energy sources, the demand for highly reliable ODMFusesOnPowerLines has skyrocketed. Grid stability depends on the rapid interruption of fault currents. Our fuses are engineered to handle the complex harmonics of modern power systems, ensuring that decentralized energy resources don't compromise the main line integrity.
The industry is moving toward digitalization and eco-friendly materials. We are leading this trend by integrating polymeric insulators with our fuse cutouts to reduce environmental impact and maintenance costs. Furthermore, the push for "intelligent" fuses that can provide status data is a core focus of our R&D, aligning with the global Smart Grid initiative.
Solar and wind farms require specialized circuit protection due to their unique load characteristics. As a premier manufacturer, we provide customized ODM solutions that withstand harsh outdoor environments while offering precise current limiting for capacitor banks and inverter stations.
Our ODM (Original Design Manufacturing) capabilities allow us to tailor fuses to specific national standards and unique utility requirements. Whether it's voltage levels, current ratings, or mounting configurations, we deliver bespoke engineering.
Our technical performance meets and exceeds ANSI C37.42, DIN 43625, BS 2692, IEC 282, and GB 15166 standards. This ensures that our products are ready for deployment in any market, from Europe to North America.
We utilize high-power test stations from the Electric Power Research Institute. Every product undergoes rigorous high-voltage electrical apparatus quality supervision, ensuring 100% qualification before shipment.
Located in the heart of China's industrial hub, we leverage world-class shipping networks to provide cost-effective and timely delivery to Southeast Asia, the Middle East, Africa, and Europe.
With "Survival by Quality" as our motto, we use high-grade raw materials and sophisticated testing equipment to ensure our fuses perform flawlessly under extreme conditions.
We don't just manufacture; we innovate. Our team is constantly improving current-limiting technology to minimize arc damage and protect expensive grid assets like transformers and capacitors.
Our ODMFusesOnPowerLines are engineered for diverse environments and utility needs.
In regions like Southeast Asia, our polymer insulators and anti-corrosive fuse links provide exceptional resistance to humidity and salt spray, significantly reducing the flashover rate compared to traditional porcelain.
Designed to withstand extreme thermal stress, our high-voltage fuses maintain their trip-curve accuracy even in ambient temperatures exceeding 50°C, protecting oil-immersed transformers from overload in harsh desert grids.
For dense urban areas, our HRC (High Rupturing Capacity) current-limiting fuses ensure that faults are cleared silently and without expulsion, meeting the strict safety and noise standards of European municipalities.
Our products have passed the comprehensive testing of the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center and the Xi'an High-voltage Electrical Apparatus Research Institute. We strictly adhere to:
While dominating the domestic Chinese market and supplying major provincial power companies, Shuguang Fuse has expanded its footprint globally. Our products are the preferred choice for utilities in:
Our fuses protect critical infrastructure including distribution transformers, high-voltage motors, and vast capacitor banks. By providing precise fault isolation, we prevent cascading grid failures and minimize downtime for industrial and residential consumers alike.
