Shu Guang Shu Guang

China OEMFuseNh Supplier & Suppliers

Your Strategic Manufacturing Partner for Advanced High-Voltage Protection Solutions & NH Fuse Systems Since 1992

The Evolution of OEM NH Fuse Systems in Global Power Distribution

In the rapidly transforming landscape of global power electronics, the demand for OEM Fuse NH (Niederspannungs-Hochleistung, or Low Voltage High Breaking Capacity) systems has shifted from standard utility protection to sophisticated, application-specific safety measures. As a premier China OEMFuseNh Supplier, we recognize that NH fuses are the backbone of industrial circuit protection, offering unparalleled reliability in preventing catastrophic equipment failure.

Globally, the industry is witnessing a "Smart Grid Revolution." Traditional fuse technologies are now being integrated with monitoring sensors, yet the core requirement remains the same: a fuse link that reacts with precision under thermal and magnetic stress. For international procurement managers, sourcing from an expert supplier means ensuring that every component meets the stringent IEC 60282 and DIN 43620 standards, which define the physical and electrical characteristics of NH fuse links.

SG Power Fuse Factory Front

Heritage of Precision: Wenzhou Shuguang Fuse Co., Ltd.

Established 1992

Located in Yueqing, Zhejiang Province—widely known as the Electrical Capital of China—Wenzhou Shuguang Fuse Co., Ltd. is a power technology powerhouse. Our journey began as "Yueqing Shuguang Fuse Factory," and over three decades, we have evolved into a vertically integrated enterprise spanning R&D, production, global sales, and comprehensive technical service.

Our status as a designated producer for the Ministry of Electric Power Industry isn't just a title; it's a testament to our engineering rigor. We specialize in high-voltage current-limiting fuses, zinc oxide arresters, drop-out fuses, and polymer insulators, serving as the primary OEM partner for global distributors seeking the "Shu Rong" brand quality.

Global Standards

Total compliance with ANSI C37.42, DIN43625, BS2692, and IEC60282-1 protocols.

R&D Prowess

Continuous innovation in material science to enhance thermal stability of fuse links.

Quality Control

ISO9001:2000 certified with rigorous high-power station testing for every batch.

Global Industrial Status & Future Trends

🌍 Market Status

The global NH fuse market is expanding at a CAGR of 5.8%, driven by urbanization in Southeast Asia and the modernization of aging grids in Europe and North America. As an OEM supplier, we bridge the gap between high-cost Western brands and low-quality generic alternatives.

🔋 Renewable Integration

Solar and Wind farms require specialized DC-rated fuses and high-voltage HRC links. Our R&D department is currently focused on optimizing fuse characteristics for PV inverters and EV charging infrastructure protection.

🛠️ Localization Needs

Global enterprises now demand "Localized Customization." Whether it's specific terminal heights for a Brazilian substation or unique melting curves for a German machinery plant, our OEM service provides the necessary flexibility.

Industry-Leading Certifications & Standards

Our products are not just manufactured; they are engineered to exceed international benchmarks. The highest technical performance of Shuguang products meets:

  • IEC 60282-1: High-voltage fuses - Current-limiting fuses
  • DIN 43625: High-voltage fuses; rated voltages 3.6 to 36 kV
  • BS 2692: Fuses for voltages exceeding 1000 V AC
  • GB 15166.2: High-voltage alternating-current fuses
  • VDE 0636: Low-voltage fuses for industrial applications
  • ISO 9001:2000: Quality management system certified factory
Certificate 1
Certificate 2
Certificate 3
Certificate 4
Certificate 5
30+ Years Experience
50+ Countries Exported
100% Test Pass Rate
24/7 Technical Support

Industrial Application Scenarios

Substation Application

Utility Substations

Providing secondary protection for distribution transformers and capacitor banks.

Industrial Plant Application

Manufacturing Plants

Protecting heavy-duty machinery and motor control centers from short-circuit surges.

Renewable Energy Application

Solar & Wind Farms

High-voltage current-limiting fuses designed for harsh outdoor environmental conditions.

Transportation Protection

Railway Systems

Ensuring the integrity of overhead line power supplies and signaling systems.

Why Partners Choose Our China OEM Factory

Testing Equipment

Being a leading China OEMFuseNh Supplier, we offer more than just products; we offer strategic supply chain stability. Our advantages include:

  • 💡 Technological Depth: We utilize high-purity silver for fuse elements and advanced silica sand as arc-extinguishing media, ensuring optimal performance.
  • 📦 Custom Manufacturing: From branded laser marking on fuse bodies to custom melting time-current curves, we tailor products to your local market needs.
  • 🛡️ High Breaking Capacity: Our fuses are tested at the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center to handle the most extreme fault currents.
  • 🚛 Logistical Excellence: Our proximity to major shipping ports like Ningbo and Shanghai ensures rapid global delivery and reduced lead times.

Our Global Market Presence

Today, Shuguang products are exported to various provincial power companies across China and international markets including Southeast Asia, the Middle East, Africa, and Europe. We have built a robust sales network that prioritizes "Development by Science" and "Survival by Quality." We welcome global buyers, engineering firms, and distributors to explore a partnership that secures the future of power distribution.

Domestic Leadership

Top-tier supplier for China State Grid and local provincial utilities.

International Reach

Establishing long-term business contacts in the EU and GCC regions.

Collaborative Spirit

Working together with global engineers to create brilliant electrical futures.