Shu Guang
Shu Guang
Established in 1992 as "Yueqing Shuguang Fuse Factory," Wenzhou Shuguang Fuse Co., Ltd. has evolved into a powerhouse of electrical technology. Located in Yueqing, Zhejiang—the renowned Electrical Capital of China—we specialize in the research, development, and mass production of high-performance custom high-voltage fuses (CustomHvFuses).
For over three decades, our company has integrated advanced power technology with rigorous manufacturing standards. We are not just a supplier; we are a strategic partner for global power grids, providing critical protection components that ensure the stability of medium and high-voltage electrical infrastructures.
The global market for CustomHvFuses is currently experiencing a paradigm shift driven by the "Energy Transition." As nations move toward decarbonization, the demand for stable electrical protection in renewable energy installations (Solar PV, Wind Farms) and Electric Vehicle (EV) infrastructure has skyrocketed.
In the industrial sector, the shift from traditional power distribution to Smart Grids requires fuses that offer higher precision and reliability. CustomHvFuses are no longer off-the-shelf components; they are engineered solutions designed to handle specific fault currents, ambient temperatures, and transient overloads. From 12kV to 36kV systems, the need for High Rupturing Capacity (HRC) fuses is universal across Europe, North America, and the rapidly industrializing regions of Southeast Asia and Africa.
Modern CustomHvFuses are increasingly being integrated with sensors for real-time monitoring. This allows utility providers to predict failure points before they occur, minimizing downtime in critical urban grids.
As switchgear and substations become more compact, especially in urban environments, the demand for miniature fuse links (like the 10KV 0.63A 8*150mm series) is growing, requiring higher energy density in smaller footprints.
The rise of high-power DC fast charging stations requires specialized fuses capable of handling rapid thermal cycling and extreme vibration, leading to the development of dedicated EV protection lines.
Authority and reliability are the cornerstones of the fuse industry. Our products are designated by the Ministry of Electric Power Industry for major infrastructure projects. We ensure that our CustomHvFuses meet and exceed international technical benchmarks:
Our products undergo rigorous testing at the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center and the Xi'an High-voltage Electrical Apparatus Research Institute. Every unit is a testament to Chinese engineering precision.
Procurement needs vary significantly by region. Understanding these localized requirements is what makes Wenzhou Shuguang Fuse Co., Ltd. a preferred global supplier.
In Southeast Asia and parts of Africa, fuses must resist corrosion and high humidity. Our porcelain and polymeric insulators are designed for zero-leakage performance in these harsh environments.
High-altitude regions require specific insulation creepage distances and thermal dissipation properties. We customize fuses to maintain dielectric strength in thin-air conditions.
In European cities, the focus is on safety and containment. Our current-limiting fuses ensure that fault currents are cleared silently and without external emissions, making them ideal for indoor switchgear.
Located in the electrical heart of China, we have immediate access to high-purity silver elements, specialized ceramics, and advanced polymers. This allows for rapid prototyping and shorter lead times compared to Western manufacturers.
Unlike large-scale generic manufacturers, we pride ourselves on being a "CustomHvFuses" specialist. We can adjust trip characteristics, dimensions, and mounting styles to match legacy systems or innovative new designs.
Leveraging efficient manufacturing processes, we provide IEC-certified protection at a competitive price point, enabling utility companies to optimize their CAPEX and OPEX.
Renewable Energy
Urban Rail Systems
Power Transformers
Industrial Distribution
Our "Shu Rong" brand fuses are utilized across diverse industries. From protecting oil-immersed transformers to ensuring the safety of high-voltage capacitor banks, our reach is global. We have established a robust sales network that spans Southeast Asia, the Middle East, Africa, and Europe, consistently ranking among the top in domestic sales and international export volume.
