Shu Guang
Shu Guang
High-performance protective devices for modern power grids
The global electrical protection market is undergoing a significant transformation. As industries move toward higher automation and renewable energy integration, the demand for Custom General Purpose Fuses has skyrocketed. Unlike standard "off-the-shelf" components, modern industrial applications require fuses tailored to specific voltage profiles, thermal constraints, and breaking capacities. From the dense urban grids of Europe to the rapidly industrializing regions of Southeast Asia, the need for reliable circuit protection is universal.
Today, the industry is not just about preventing overloads; it's about system resilience. High-voltage HRC (High Rupturing Capacity) fuses and current-limiting technologies are now the backbone of power transformers, capacitor banks, and motor protection circuits globally. As a leading manufacturer based in China's electrical capital, we bridge the gap between complex engineering requirements and cost-effective manufacturing.
Modern fuses are now designed to complement smart monitoring systems, providing predictable performance in digitally managed substations.
The rise of Solar PV and Wind energy requires fuses that can handle DC circuits and high-frequency fluctuations common in inverter systems.
As equipment gets smaller, the demand for miniature high-voltage fuse links with high current-limiting capabilities is increasing.
Located in Yueqing, Zhejiang Province—the renowned electrical capital of China—Wenzhou Shuguang Fuse Co., Ltd. stands as a powerhouse of technology and innovation. We are a power technology enterprise that seamlessly integrates research, development, production, sales, and service.
Our journey began in 1992 as the "Yueqing Shuguang Fuse Factory." Over the past three decades, we have evolved from a local workshop into a global supplier, maintaining our commitment to electrical safety and engineering excellence. We are proud to be designated by the Ministry of Electric Power Industry to produce high-voltage fuses across various voltage levels.
Our commitment to reliability is backed by rigorous testing and international standard compliance. We ensure that every custom fuse leaving our factory meets or exceeds global benchmarks for safety and performance.
Our products conform to IEC60282, DIN43625, BS2692, and ANSI C37.42. This ensures compatibility with global power infrastructure from America to Europe.
Tested by the Electric Power Research Institute and the National High-voltage Electrical Apparatus Quality Supervision Center.
Our company's quality assurance system is ISO9001:2000 certified, ensuring consistent excellence in every batch.
Our fuses are not just components; they are critical safeguards for diverse industrial environments. Understanding localized application scenarios is key to our success in the global market.
In Southeast Asia, our drop-out fuses are customized with enhanced corrosion resistance to withstand high humidity and tropical storms. In the Middle East, we provide high-voltage current-limiting fuses with superior thermal stability for desert environments. In Europe, our DIN-standard HRC fuses are favored for their precision and adherence to strict safety regulations.
Major market procurement needs often focus on three pillars: Reliability, Speed, and Compliance. As a factory with deep roots in the supply chain, we offer direct communication with engineers, ensuring that the "custom" in our general-purpose fuses truly means fit-for-purpose.
Wenzhou Shuguang Fuse Co., Ltd. offers more than just products; we provide a strategic partnership. Our advantages are built on the "Shu Rong" brand reputation and decades of technological refinement.
Continuous investment in sophisticated testing equipment and process flow optimization ensures that all performance indicators are top-tier.
Our agile R&D team can prototype and produce new fuse designs according to user-specific voltage and current requirements in record time.
With a complete sales network throughout China and established routes to Africa, Europe, and Asia, we guarantee timely delivery.
We adhere to the principle: "Development by science and technology, and survival by quality." This philosophy ensures that we stay at the forefront of the industry, ranking among the top for domestic and international sales.
Comprehensive electrical protection range for all voltage levels
