Shu Guang
Shu Guang
Wenzhou Shuguang Fuse Co., Ltd., established in 1992 as the "Yueqing Shuguang Fuse Factory," stands as a beacon of reliability in the electrical capital of China—Yueqing, Zhejiang. For over 30 years, we have evolved into a comprehensive power technology enterprise integrating R&D, production, sales, and service.
As a designated manufacturer for the Ministry of Electric Power Industry, we specialize in high-voltage fuses, current-limiting fuses, capacitor protection, and zinc oxide arresters. Our journey is rooted in a commitment to "Survival by Quality," ensuring every motor-rated fuse leaving our facility meets the most stringent global standards.
The global demand for CE Certified Motor Rated Fuses is experiencing a significant surge. As industries move toward Automation 4.0, the protection of electric motors—the workhorses of modern manufacturing—has become critical. From the booming EV infrastructure in Europe to the massive industrial upgrades in Southeast Asia, high-performance HRC fuses are now a prerequisite for operational safety.
The trend is shifting towards Current-Limiting High Voltage Fuses with higher breaking capacities and lower energy let-through. Modern motor protection requires fuses that can handle high in-rush currents while providing lightning-fast response during short-circuit faults. We are integrating digital testing simulation into our manufacturing to ensure precision in every link.
Renewable energy integration (Solar and Wind) requires specialized protection components. Our DIN Standard Back-Up Fuse-Links and Transformer Protection Devices are increasingly used in grid-tie inverters and distribution transformers worldwide, ensuring that the green energy revolution remains safe and stable.
Our products are engineered to exceed international benchmarks, providing authoritative reliability for global procurement.
Tested and certified by the most prestigious institutions:
Our complete quality assurance system ensures every batch is tracked, from raw material procurement to final high-power testing, guaranteeing 100% qualification rates for domestic and international shipments.
Global enterprises require more than just a product; they need a partner who understands the localized challenges of their electrical grids. Our fuses are deployed in:
Located in Yueqing, the electrical capital, we leverage a world-class supply chain cluster, allowing us to source premium raw materials and provide competitive pricing without compromising quality.
Our engineering team can customize fuse parameters to meet unique regional grid requirements or specific motor starting characteristics, providing OEM/ODM services for global brands.
With a large-scale manufacturing capacity, we maintain short lead times even for high-volume orders, ensuring your projects stay on schedule regardless of geographic location.
When selecting a Motor Rated Fuse, electrical engineers must consider the unique coordination required for motor starting currents. Unlike standard resistive loads, electric motors draw "in-rush" currents that can be 6 to 10 times their full-load current. A CE certified fuse from Shuguang is specifically designed with a dual-element or specialized silver link geometry that provides the necessary time-delay to prevent nuisance blowing during start-up, while still offering ultra-fast protection against short-circuits.
Our China High Voltage Fuse H.R.C. XRNP series exemplifies the peak of rupturing technology. In the event of a catastrophic failure, these fuses are filled with high-purity quartz sand which acts as an arc-extinguishing medium. As the fuse element melts, the sand transforms into a non-conductive fulgurite, safely containing the energy and preventing damage to surrounding switchgear. This is why our products are favored by provincial power companies and international industrial complexes alike.
Our Polymeric and Polymer Insulators are designed for the harshest environments. Whether it's the high salinity of coastal wind farms or the extreme heat of Middle Eastern industrial parks, our UV-resistant and hydrophobic materials ensure long-term dielectric strength. This holistic approach to circuit protection—combining the fuse, the holder, and the insulator—is what makes Shuguang Fuse a leading global supplier.
