In the landscape of modern renewable energy and industrial automation, the DC MCB Circuit Breaker 1000V serves as the critical vanguard of system safety. As global power grids transition toward high-voltage Direct Current (DC) architectures—driven by Solar Photovoltaic (PV) expansion, Battery Energy Storage Systems (BESS), and Electric Vehicle (EV) infrastructure—the demand for reliable, Tier-1 manufactured DC protection has reached an unprecedented peak.
Unlike AC, DC arcs do not have a natural zero-crossing. Our 1000V breakers utilize permanent magnetic blowing and narrow slot cooling to extinguish arcs in milliseconds.
Engineered to meet IEC 60947-2 and GB/T 14048.2 standards, ensuring seamless integration into European, Asian, and American industrial grids.
Designed for the next generation of PV string inverters and high-density battery stacks where thermal stability is paramount.
Zhejiang Shuorui Electric Co., Ltd., situated in the "Electrical Capital" of Liushi, Wenzhou, leverages decades of cluster intelligence to provide not just products, but holistic electrical safety ecosystems. Our role as a leading China DC MCB Supplier is defined by our ability to bridge the gap between high-volume manufacturing efficiency and stringent global quality benchmarks.
| Feature | Standard Specification | Shuorui Advanced Series |
|---|---|---|
| Rated Voltage (Ue) | 500V / 800V DC | Up to 1000V / 1500V DC |
| Breaking Capacity (Icu) | 4.5kA - 6kA | Enhanced 10kA (High-Performance Industrial) |
| Arc Extinguishing | Conventional Air Gap | Magnetic Blow-out + Specialized Arc Chute |
| Mechanical Life | 10,000 Operations | 20,000+ Operations (Fatigue-Resistant Alloys) |
Zhejiang Shuorui Electric Co., Ltd. is located in Liushi, Wenzhou, Zhejiang, the electrical capital of China. As a modern company integrating R&D, production and sales, we are committed to providing the most cutting-edge technology, the best quality, and the most sincere service.
Strict control from parts purchase to machine delivery. We utilize advanced production equipment to ensure every unit meets international standards.
From MCB, MCCB, and SPD to Smart WiFi Reclosers and Photovoltaic DC Distribution switches—our catalog covers the entire DC/AC spectrum.
Flexible production lines tailored for global brands, providing localized housing designs and specific technical parameter tuning.
Procurement departments today are no longer just buying "breakers"; they are investing in uptime and liability reduction. Shuorui Electric provides specialized solutions for three major sectors:
With string voltages rising to 1000V and 1500V to minimize copper loss, our DC MCBs act as the secondary defense within combiner boxes and inverters. They are designed to withstand high ambient temperatures typical of desert solar farms while maintaining precise trip curves.
Battery stacks present a unique challenge: extremely high short-circuit currents. Our 1000V DC breakers are tested for rapid isolation to prevent thermal runaway in Lithium-ion and Flow battery assemblies.
DC Fast Charging (Level 3) requires robust switching and protection that can handle repeated cycling. Our WiFi-enabled intelligent breakers allow operators to monitor circuit health remotely, reducing O&M costs.
Looking to the future, Zhejiang Shuorui Electric Co., Ltd. will continue to increase investment in R&D and expand product lines to serve the global electrical market. We look forward to creating a safer, electrified future with you.
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