Shu Guang
Shu Guang
Established in 1992 as the "Yueqing Shuguang Fuse Factory," our journey began in the electrical capital of China, Yueqing, Zhejiang Province. Over three decades, we have evolved into a premier power technology enterprise that integrates research, development, production, and global service.
As a leading China ODM Fault Limiting Fuses manufacturer, we specialize in high-voltage protection. Our legacy is built on precision engineering and a relentless commitment to electrical safety. We don't just manufacture fuses; we provide peace of mind for grid operators and industrial engineers worldwide.
The global demand for Fault Limiting Fuses has reached an all-time high, driven by the rapid expansion of renewable energy sources and the modernization of aging power grids. In today's industrial landscape, short-circuit faults can lead to catastrophic equipment failure and multi-million dollar downtimes. As a result, industries ranging from data centers to heavy manufacturing are prioritizing advanced current-limiting technology.
With the rise of IoT and smart grids, protection devices must respond faster and more reliably. Our ODM solutions are designed to handle the high transient currents typical of modern interconnected networks.
Wind and solar farms require specialized protection against DC and variable AC faults. We provide high-breaking capacity fuses that meet the unique needs of the green energy sector.
Modern current-limiting fuses significantly reduce the "let-through energy" during a fault, preventing mechanical stress on transformers and switchgear, thus extending infrastructure life.
Global enterprises are shifting their procurement strategies toward ODM partners in China who can offer both cost-efficiency and technical compliance. At Wenzhou Shuguang Fuse, we understand that localization is key. Whether it is the DIN standards of Europe, ANSI/IEEE requirements of North America, or BS standards for the Middle East, our production lines are calibrated to meet regional specificities.
Localization in Action:
Our status as a designated producer for the Ministry of Electric Power Industry is backed by rigorous testing. We maintain E-E-A-T principles by ensuring every product is verified at national-level laboratories including the Xi'an High-voltage Electrical Apparatus Research Institute.
Our technical performance meets and often exceeds international benchmarks:
Compliance Standards: ANSI C37.42, DIN 43625, BS 2692, IEC 60282-1, IEC 60644, IEC 60470, GB 15166.1-5, DL/T 640-1997, and VDE 0636.
We provide full-scale customization. From current-limiting back-up fuses to full-range protection links, we adjust parameters based on your grid’s specific fault current calculations. Our "Shu Rong" brand is synonymous with reliability in Southeast Asia, the Middle East, Africa, and Europe.
By investing in high-quality raw materials and sophisticated testing equipment, we ensure that every unit leaving our Yueqing facility is a masterpiece of electrical engineering. We prioritize Science & Technology for development, and Quality for survival.
Substation Protection
Wind Power Systems
Industrial Switchgear
Transformer Safety
