Ensuring operational continuity in the era of renewable energy transition.
As the global energy landscape shifts toward Direct Current (DC) ecosystems—driven by solar photovoltaic (PV) adoption, electric vehicle (EV) charging infrastructure, and Battery Energy Storage Systems (BESS)—the demand for robust protection has never been higher. Unlike AC systems, DC arcs are harder to extinguish, making overvoltage protection a critical safety requirement.
Shuorui Electric, based in the "Electrical Capital of China," leads the manufacturing of Type 2 (T2) DC SPDs designed for extreme environments. Our 1000V and 1500V series are engineered to withstand the harsh transient voltages common in large-scale utility solar farms.
Zhejiang Shuorui Electric: Combining Scale, Precision, and Innovation.
Located in Liushi, Wenzhou, we leverage the world's most concentrated electrical component supply chain, ensuring competitive pricing and rapid R&D cycles.
Our dedicated team focuses on "Information Gain" in product design, utilizing advanced materials to increase discharge capacity and reduce leakage current.
From raw material incoming inspection to final surge testing, every SPD undergoes automated testing to meet international IEC 61643-31 standards.
Years Experience
Global Markets
Monthly Capacity
Certified Quality
Zhejiang Shuorui Electric Co., Ltd. is located in Liushi, Wenzhou, Zhejiang, the electrical capital of China. It is the core area of the electrical industry and gathers many excellent electrical companies and rich industry resources. As a modern company integrating R&D, production and sales, Shuorui Electric is committed to providing customers with high-quality electrical products and solutions.
The company always adheres to the business philosophy of "the most cutting-edge technology, the best quality, the most sincere service, and the most favorable price", striving to maintain a leading position in the fierce market competition.
Strict inspection from parts purchase to whole machine delivery.
Covering MCB, MCCB, SPD, SCB, and smart control switches.
Customized solutions for global electrical brands.
System certification ensuring global compliance.
Navigating the complex landscape of high-voltage surge protection.
The transition from 1000V to 1500V DC systems in photovoltaic plants allows for longer strings and fewer combiner boxes, reducing balance-of-system (BOS) costs. However, this requires SPDs with higher Ucpv ratings. Shuorui is at the forefront of this trend, offering 1500VDC T2 SPDs that provide reliable protection against indirect lightning strikes and switching surges.
Future-proof SPDs are no longer passive components. We are integrating remote signaling contacts and smart monitoring modules that alert maintenance teams via WiFi or RS485 when a module needs replacement, minimizing downtime in remote solar farms.
Installed in DC combiner boxes and central inverters to protect against atmospheric surge events.
Critical for DC fast chargers (Level 3) where voltage transients can damage vehicle batteries.
Protecting remote radio heads and DC power supply systems in telecommunication towers.
A glimpse into our production capabilities and enterprise environment.
Automated Production Line
Expert insights for global procurement managers and electrical engineers.
Looking to secure your electrical infrastructure or expand your product line with high-quality DC SPDs? Zhejiang Shuorui Electric Co., Ltd. provides the technical expertise and manufacturing scale you need.
Srochn