Shu Guang
Shu Guang
Wenzhou Shuguang Fuse Co., Ltd., formerly known as the "Yueqing Shuguang Fuse Factory" established in 1992, is strategically located in Yueqing, Zhejiang Province—the renowned "Electrical Capital of China." As a cornerstone power technology enterprise, we integrate sophisticated research, development, production, sales, and service into a cohesive operation designed to meet the rigorous demands of modern electrical grids.
Our journey began over three decades ago, and today, we stand as a leader in the HRC Fuse and High-Voltage protection industry. Our brand, "Shu Rong," has earned a prestigious reputation among both domestic and international users for reliability and technological innovation.
Our products are not only staple components for provincial power companies across China but have also established a robust international footprint. We export our high-voltage fuses and current-limiting solutions to Southeast Asia, the Middle East, Africa, and Europe, ranking at the forefront of the industry's sales charts.
The global demand for HRC (High Rupturing Capacity) Fuse Boxes and related medium-voltage components is witnessing an unprecedented surge. As nations modernize their aging electrical infrastructures and transition toward renewable energy sources, the need for reliable, high-performance circuit protection has never been more critical. Industrial sectors, ranging from heavy manufacturing to specialized data centers, require customized OEM HRC Fuse Box solutions that can withstand extreme fault currents while ensuring the longevity of downstream equipment like transformers and capacitors.
In the current industrial climate, Industry 4.0 and the rise of Smart Grids are driving the evolution of fuse technology. Modern HRC fuses are no longer just passive components; they are precision-engineered devices that must comply with a complex web of international standards. Our commitment to these standards—including IEC60282, DIN43625, ANSI C37.42, and BS2692—ensures that our products are compatible with localized application scenarios across different continents, whether it's for an oil-immersed transformer in Europe or a drop-out fuse system in Southeast Asia.
The industry is moving toward miniaturization and digitalization. With the rise of Electric Vehicles (EVs), specialized high-voltage fuses for EV battery systems and charging stations have become a major growth segment. Furthermore, "Green" insulators and polymer-based materials are replacing traditional porcelain to offer better durability in seismic or highly polluted environments.
Global procurement managers are increasingly looking for "One-Stop" manufacturers who can provide not just the product, but the technical validation. Trustworthiness (the 'T' in E-E-A-T) is built through certified performance tests at facilities like the Electric Power Research Institute and the Xi'an High-voltage Electrical Apparatus Research Institute, where all Shuguang products have passed rigorous testing.
We recognize that an HRC fuse box in a coastal desalination plant faces different stressors than one in a high-altitude substation. By offering customization (OEM/ODM), we allow our clients to adapt technical conditions—such as current-limiting levels or insulation ratings—to fit specific local environmental and regulatory requirements.
Quality is the bedrock of our survival. We are designated by the Ministry of Electric Power Industry to produce high-voltage current-limiting fuses, zinc oxide arresters, and insulators. Our quality assurance system is meticulously maintained, having passed the ISO9001: 2000 quality system certification.
Our technical performance standards align perfectly with:
While developing new products, we have always attached importance to the process flow. High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system. Every performance indicator is monitored to ensure zero-defect delivery.
Located in Yueqing, we leverage the world's most concentrated electrical supply chain. This allows us to offer competitive pricing without compromising on the quality of raw materials or engineering precision, a key advantage for our global OEM partners.
New products can be customized and produced at any time according to user needs. Our R&D team continuously improves the performance of H.V. HRC fuses for oil-immersed transformers and backup protection, staying ahead of industry requirements.
We sincerely welcome customers from home and abroad to discuss cooperation and work together for the prosperity and development of the electric power industry. Whether you are looking for standard HRC Current Limiting Fuses or specialized EV Fuses, Wenzhou Shuguang Fuse Co., Ltd. is your authoritative partner in China.
