Engineered for high-performance DC/AC environments and renewable energy protection.
Bridging the gap between traditional circuit protection and future-proof energy infrastructure.
Our MCBs are specifically optimized for high-voltage DC string protection in solar farms. With breaking capacities up to 10kA and specialized arc-extinguishing chambers, we ensure long-term stability in harsh environmental conditions.
Integrating WiFi-enabled intelligent reclosing protectors allows for remote maintenance and real-time fault diagnosis, significantly reducing O&M costs for municipal power distribution.
Customized MCCBs and AC contactors provide heavy-duty switching and thermal-magnetic protection for manufacturing plants, ensuring zero-downtime operations for critical machinery.
Located in Liushi, Wenzhou—the Electrical Capital of China—Zhejiang Shuorui Electric Co., Ltd. stands at the nexus of innovation and manufacturing. As a modern powerhouse integrating R&D, production, and sales, we are the definitive partner for global distributors seeking high-quality MCB solutions.
Our philosophy: "Cutting-edge technology, supreme quality, sincere service, and competitive pricing." We don't just manufacture parts; we secure global power systems.
The evolution from mechanical safety to digital intelligence.
Current generation metal components use aerospace-grade alloys for enhanced thermal conductivity and contact longevity. Our internal mechanisms undergo 20,000+ operations testing.
The 2024-2025 roadmap focuses on Matter-compatible smart breakers, enabling cross-platform ecosystem integration (Google Home, Alexa) for residential and commercial energy management.
Implementing RoHS-compliant materials and energy-efficient manufacturing processes to reduce the carbon footprint of every MCB produced by Shuorui.
Every link, from raw material procurement to final assembly, follows ISO 9001 protocols.
Tailored branding and technical specifications for global electrical wholesalers.
Products meet CE, TUV, and international safety benchmarks for cross-border compliance.
Continuous investment in new arc-extinguishing tech and high-break solar solutions.
Helping engineers select the right protection for different application scenarios.
| Feature | Residential MCB | Industrial MCB (Metal Support) | Solar DC Circuit Breaker |
|---|---|---|---|
| Rated Voltage | 230V/400V AC | 400V/690V AC | Up to 1500V DC |
| Breaking Capacity | 4.5kA - 6kA | 10kA - 25kA | Up to 10kA (Specific for PV) |
| Primary Application | Homes, Small Offices | Factories, Machinery | PV Strings, Battery Storage |
| Response Time | Standard Thermal-Magnetic | High-Precision Instantaneous | Ultra-Fast Arc Suppression |
Understanding local electrical codes is critical for global trade. Shuorui provides extensive support for:
Export Countries: 50+
R&D Yearly Growth: 15%
Experience our state-of-the-art production line through our enterprise gallery.
Direct answers for procurement officers and electrical engineers.
DC breakers require specialized magnetic blowouts to extinguish the arc, which is much more persistent than AC. Our DC MCBs are engineered with extended arc chambers and polarized terminals to ensure safe interruption of high-energy DC circuits in solar applications.
Yes. We offer full ODM services including custom current ratings, breaking capacities, shell branding, and specialized packaging for bulk wholesale.
Each unit undergoes three stages of testing: calibration of the thermal trip mechanism, dielectric strength testing, and contact resistance measurement. Reports are available upon request.
Typically, standard models have a lead time of 15-20 days, while custom OEM orders may take 30-45 days depending on the technical requirements.
Verified quality for mission-critical installations.
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