Shu Guang
In the rapidly evolving landscape of global power distribution, CustomEFuses have transitioned from simple safety components to critical intelligent assets. As the world shifts towards electrification, particularly with the surge in Electric Vehicles (EVs), renewable energy integration, and smart grid deployment, the demand for high-reliability circuit protection has never been higher. Modern industrial applications require more than just "off-the-shelf" solutions; they demand precision-engineered fuses tailored to specific voltage curves, environmental conditions, and rapid-response requirements.
Today, the global market is witnessing a significant shift towards high-voltage DC protection and current-limiting technologies. China has emerged as the central hub for this manufacturing excellence, with Wenzhou Shuguang Fuse Co., Ltd. standing at the forefront of this technological revolution. From Southeast Asia's growing infrastructure to the stringent safety standards of the European energy sector, Chinese-manufactured custom fuses are powering the world's most critical systems.
International buyers are increasingly prioritizing suppliers who offer full compliance with IEC 60282 and DIN 43625 standards while maintaining the agility to produce bespoke technical specifications for niche industrial applications.
Solar and wind farms require specialized protection against transient overcurrents. Custom Tail wire recovery and Capacitor protection fuses are now essential for maintaining the stability of green energy grids.
As factories move towards Industry 4.0, the precision of protection devices like the RT18 and NH series HRC fuses determines the uptime and safety of automated production lines.
Founded in 1992 as "Yueqing Shuguang Fuse Factory," our journey began in the electrical capital of China—Yueqing, Zhejiang Province. Over the past three decades, we have evolved into a powerhouse of electrical technology, integrating R&D, production, and global sales under one roof.
As a designated producer for the Ministry of Electric Power Industry, our commitment to safety and innovation is embedded in every product that leaves our factory. We don't just manufacture fuses; we provide peace of mind for utility providers and industrial giants worldwide.
Established Year
Countries Exported
9001:2000 Certified
Safety Tested
Our competitive edge lies in our rigorous testing and customization abilities. Every CustomEFuse is engineered using high-quality raw materials and validated through sophisticated testing equipment. We pride ourselves on meeting the highest technical performance standards globally, including ANSI C37.42, DIN 43625, BS 2692, and IEC 60282-1.
Whether it's a specific dimension like the 55*520mm high-voltage fuse or specialized miniature fuse links (10KV 0.63A), our R&D team can produce new prototypes and bulk orders based on your unique technical requirements.
All products have passed tests at the High-power Test Station of the Electric Power Research Institute and the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center.
We use premium porcelain, polymer, and composite materials to ensure our insulators and fuse cutouts withstand the harshest environmental conditions, from humid tropical climates to freezing high-altitude regions.
Trust is built on transparency. Our systems are ISO 9001:2000 certified, and our products meet the stringent requirements of international power authorities.





Providing essential protection for transformers and switchgear in national power grids across Africa and the Middle East.
Our lightning arresters and drop-out fuses are critical for safeguarding substations from voltage surges and mechanical failures.
Safeguarding HVAC systems, data centers, and heavy manufacturing plants with high-rupturing capacity (HRC) fuses.
Dedicated fuse links for wind turbine protection and solar PV combiner boxes, ensuring efficient energy transmission.
Working directly with Wenzhou Shuguang Fuse Co., Ltd. provides global clients with unparalleled advantages in terms of cost-efficiency, supply chain resilience, and technical agility. As a direct manufacturer, we eliminate the middleman, ensuring that every cent of your budget goes towards high-quality materials and precision engineering.
Our location in Yueqing gives us access to the world's most concentrated electrical supply chain, allowing us to source specialized components and raw materials faster than any other region globally. This synergy allows us to maintain a "Top Tier" ranking in domestic sales while rapidly expanding our footprint in Europe and the Americas.