Shu Guang
Shu Guang
In the rapidly transforming landscape of global power distribution, the Type K (Fast) Expulsion Fuse Link remains a cornerstone of medium-voltage circuit protection. As power grids become increasingly complex—integrating decentralized renewable energy sources and high-demand industrial hubs—the need for high-quality Type K fuse suppliers from China has shifted from mere price-seeking to a demand for uncompromising technical excellence and EEAT-compliant reliability. Wenzhou Shuguang Fuse Co., Ltd., established with a legacy dating back to 1992, stands at the forefront of this industrial vanguard.
Wenzhou Shuguang Fuse Co., Ltd. is located in Yueqing, Zhejiang Province, the electrical capital of China. It is a power technology enterprise integrating research, development, production, sales and service. The predecessor of the company was "Yueqing Shuguang Fuse Factory" established in 1992, bringing over three decades of mastery to the field.
We are designated by the Ministry of Electric Power Industry to produce high-voltage fuses, current-limiting fuses, power capacitor protection, voltage transformer protection fuses, zinc oxide arresters, and high-voltage insulators. All products meet ANSIC37,42, DIN43625, and IEC282-2-1995 standards.
A complete sales network has been formed throughout the country, and products are exported to Southeast Asia, the Middle East, Africa, and Europe. Our brand, "Shu Rong," has earned a reputation for resilience in extreme environmental conditions.
Global demand for Type K fuses is currently driven by two major macro-trends: Grid Modernization in developed economies and Electrification in emerging markets. Procurement directors from utility companies in the USA, Brazil, and Vietnam are increasingly looking for suppliers who can provide "Information Gain"—detailed data on time-current characteristics (TCC) and material fatigue testing.
The "High-Quality" designation in the Chinese manufacturing sector now implies a commitment to Local Compliance. For instance, European markets strictly require IEC 60282-2 standards, while North American utilities often pivot towards ANSI C37.42. As a leading factory, Wenzhou Shuguang ensures that every fuse link, whether it’s for a dropout fuse cutout or a transformer back-up, undergoes rigorous testing at the Electric Power Research Institute and the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center.
Future Type K fuses will utilize high-purity silver-plated copper elements and advanced vulcanized fiber tubes. This reduces arc-extinction time and increases the interrupting capacity (kA rating), crucial for high-density urban grids.
We are researching "Smart Indicators" on fuse links that can provide visual or remote telemetry when a fuse has blown, reducing downtime and improving utility response times in rural distribution networks.
Moving towards RoHS-compliant components and recyclable composite insulators. Our polymer insulators are already setting standards for reliable performance in high-pollution and coastal environments.
Utility Distribution
Industrial Sub-stations
Renewable Energy (Solar/Wind)
Rural Electrification
The company continues to deepen and improve the quality management system. While vigorously developing new products, it has always attached importance to the process flow. High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system. All performance indicators are in line with the corresponding technical conditions, and new products can be customized according to user needs.
Operating a global power project requires more than just hardware; it requires a partner who understands regulatory frameworks. Wenzhou Shuguang provides comprehensive technical documentation, installation guides, and compliance certificates (VDE0636, DL/T640-1997) to ensure smooth integration into any provincial or national power grid. Our "Development by science and technology" principle ensures that we stay ahead of the curve in power safety engineering.
"Shu Rong" brand products have enjoyed a high reputation among domestic and foreign users due to our rigorous adherence to quality and service.
