Shu Guang
Shu Guang
Wenzhou Shuguang Fuse Co., Ltd. is strategically located in Yueqing, Zhejiang Province—widely recognized as the Electrical Capital of China. We are a power technology enterprise that seamlessly integrates research, development, production, sales, and professional service.
We are designated by the Ministry of Electric Power Industry to produce a wide spectrum of electrical components, including high-voltage fuses, current-limiting fuses, power capacitor fuses, and zinc oxide arresters. Our brand, "Shu Rong," has built an impeccable reputation for reliability and technical excellence.
The NH1 fuse (HRC low voltage) is the global benchmark for protecting industrial switchgear and distribution boards. Following the DIN 43620 standard, it is the primary choice for electrical safety in Europe, Asia, and Africa.
Modern industrial grids require high breaking capacities. Our NH1 fuses are designed to safely interrupt short-circuit currents up to 120kA, protecting multi-million dollar machinery from electrical faults.
Driven by the expansion of renewable energy and EV charging infrastructure, the demand for NH series fuses is growing steadily as they provide the most cost-effective overcurrent protection.
The industry is moving toward "Smart Fuses" equipped with sensors to monitor temperature and current in real-time. As a leading manufacturer, Shuguang Fuse is investing in materials that support better thermal dissipation and longevity.
PV systems and wind farms require fuses capable of handling DC currents and fluctuating loads. The NH1 series is being optimized with specialized gPV characteristics to meet these green energy demands.
While the physical size of the NH1 remains standard for compatibility, the internal elements are being refined to handle higher current densities (up to 250A in NH1 frames) without excessive heat loss.
Enterprises worldwide—from infrastructure contractors in Dubai to factory operators in Germany—look for specific criteria when sourcing NH1 fuses. Our factory fulfills these localized needs through rigorous compliance.
| Region | Primary Application | Required Standards |
|---|---|---|
| Europe (EU) | Industrial Automation, Building Distribution | IEC 60269-2, DIN 43620, CE Mark |
| Southeast Asia | Utility Grids, Power Substations | BS 2692, IEC 60282-1 |
| Middle East | Oil & Gas Facilities, Desalination Plants | ISO 9001, IEC Standards, High Thermal Stability |
| Latin America | Mining Operations, Transformer Protection | ANSI C37.42, IEC 282 |
NH1 fuses protect heavy-duty motors and large-scale manufacturing lines from catastrophic overcurrent, ensuring zero downtime.
Integrated into main distribution boards, they safeguard HVAC systems and elevators in high-rise complexes.
Used extensively in secondary distribution transformers to prevent network-wide outages during localized faults.
In recent years, our company has developed rapidly, and its economic and social benefits have improved significantly. We adhere to the principle of "Development by science and technology, and survival by quality".
Substation Protection
Industrial Control Systems
Transformer Safeguarding
Energy Distribution Networks
