Highly reliable surge arresters optimized for the Hanoi power grid, offering robust protection against transient overvoltages caused by lightning strikes and switching operations.
Engineered for commercial and residential solar arrays in Hanoi, this DC500V SPD provides robust overvoltage protection for solar inverters and DC distribution networks.
Designed for the standard AC grid in Vietnam, this 20-40KA surge protector prevents transient surges from damaging sensitive industrial machinery and control boxes.
A heavy-duty 3-pole DC1000V SPD designed for utility-scale solar farms in Northern Vietnam, offering a high discharge capacity of 40KA.
Compact single-pole Type 2 surge protector, ideal for modular integration in residential consumer units and local distribution panels across Hanoi.
Hanoi, the political and economic heartbeat of Northern Vietnam, is undergoing an unprecedented industrial revolution. With major industrial zones such as Hoa Lac High-Tech Park, Noi Bai Industrial Zone, and Quang Minh Industrial Zone expanding rapidly, the demand for high-reliability electrical infrastructure has skyrocketed. However, Northern Vietnam presents a unique and hostile environment for electrical systems.
Characterized by a tropical monsoon climate, Hanoi experiences some of the highest lightning strike densities in Southeast Asia. Annually, the region suffers from intense convective storms that trigger severe transient overvoltages. Without robust Surge Protective Devices (SPDs), factories, data centers, and renewable energy installations face catastrophic equipment failures, costly downtime, and severe safety hazards. As a premier global manufacturer, Zhejiang Shuorui Electric Co., Ltd. (SROCHN) delivers cutting-edge lightning protection solutions tailored specifically to withstand the extreme environmental and grid conditions of Hanoi and the broader Vietnamese market.
Zhejiang Shuorui Electric Co., Ltd. is strategically located in Liushi, Wenzhou, Zhejiang, widely recognized as the Electrical Capital of China. This premier geographic location allows us to harness a dense network of advanced raw material suppliers, cutting-edge R&D laboratories, and highly skilled electrical engineers. As a modern enterprise integrating R&D, manufacturing, and global sales, SROCHN is committed to delivering world-class low-voltage electrical components.
We operate under a strict business philosophy: "the most cutting-edge technology, the best quality, the most sincere service, and the most favorable price." To support the rapid infrastructure growth in Hanoi, we have optimized our supply chain to provide direct, high-efficiency logistics to Vietnam, ensuring that local contractors, EPCs, and distributors receive top-tier SPDs with minimal lead times. Our dedicated R&D team continuously innovates, ensuring our products exceed the stringent demands of modern smart grids and high-voltage DC solar installations.
Our products are meticulously engineered to combine modern industrial aesthetics with unparalleled reliability and electrical efficiency. SROCHN surge protectors have successfully penetrated major global markets, earning the trust of international engineering firms through four core pillars:
At SROCHN, quality control is integrated into every stage of production. From the rigorous testing of raw Metal Oxide Varistors (MOVs) and Gas Discharge Tubes (GDTs) to the final automated testing of assembled modules, we enforce strict international standards. Our state-of-the-art testing facility simulates high-energy surge impulses to guarantee that every SPD delivered to Hanoi can reliably clamp dangerous overvoltages and safeguard critical downstream equipment.
Different industries require distinct surge protection strategies. SROCHN provides comprehensive, system-level solutions designed to address the specific pain points of Hanoi's primary growth sectors:
With Vietnam's aggressive push toward renewable energy, solar farms in provinces surrounding Hanoi require robust DC surge protection. SROCHN offers specialized 1000VDC and 1500VDC Type 2 SPDs that protect photovoltaic strings, combiner boxes, and central inverters from direct and indirect lightning induced surges.
Advanced manufacturing facilities in Hoa Lac High-Tech Park rely on sensitive PLC systems, CNC machinery, and industrial IoT sensors. A single power surge can halt production lines. Our AC 275V to 440V multi-pole SPDs provide multi-stage protection to ensure continuous, zero-downtime operation.
Hanoi's rapidly expanding telecommunications networks and local data centers demand ultra-fast response times. SROCHN's low-voltage DC surge protectors (24VDC) safeguard high-speed data transmission lines and sensitive server power supplies against micro-second transient overvoltages.
As power grids transition into smart grids, traditional passive surge protection is no longer sufficient. SROCHN is leading the industry by developing intelligent SPDs equipped with Remote Signaling Contacts (dry contacts) and IoT-enabled monitoring modules. These advanced systems allow maintenance engineers in Hanoi's industrial zones to monitor the health status of the SPD in real-time, receiving instant alerts before a module reaches its end-of-life stage. Additionally, our patented thermal disconnector technology ensures safe disconnection from the grid under extreme fault conditions, preventing catastrophic thermal runaway and fire hazards.
Take a virtual tour of our state-of-the-art manufacturing facilities, automated assembly lines, and meet our professional engineering team dedicated to supporting global markets including Hanoi.












Advanced surge protective devices specifically engineered for utility-scale solar farms and high-voltage DC distribution systems in Northern Vietnam.
High-performance 1000VDC Type 2 surge protector featuring a visual alert design and a robust 40kA discharge capacity, perfect for Hanoi industrial solar arrays.
Designed for ultra-high voltage (UHV) 1500VDC utility solar projects, providing heavy-duty surge protection under extreme tropical weather conditions.
Specialized 3-pole 24VDC surge protector designed to safeguard low-voltage control circuits, sensors, and communication lines in smart factories.
A highly reliable 3-pole 150VDC surge protective device, engineered to secure medium-voltage DC systems and industrial automation networks.
SROCHN products are manufactured under strict ISO 9001 guidelines and have achieved prestigious global certifications, ensuring full compliance with Vietnam's importing and grid connection standards.








By combining the advanced industrial ecosystem of Liushi with state-of-the-art automation, we deliver unmatched value to our partners in Hanoi.
Get expert answers to the most common technical and commercial questions regarding SPD procurement and installation in Hanoi.
Explore our full range of high-performance AC and DC surge protective devices, trusted by electrical contractors and engineers across Hanoi.
A highly reliable 2-pole Type 2 AC surge protector, perfect for single-phase distribution boards in Hanoi commercial buildings.
Three-pole AC surge protective device designed for three-phase delta power systems, providing robust protection for industrial motors.
Complete 4-pole protection for three-phase TN-S power grids, ensuring safety for main distribution panels in Hanoi factories.
Premium 1000V DC surge protector featuring a visual indicator window and remote signaling options for smart solar installations.
Ultra-compact 24V DC surge protective device, ideal for safeguarding sensitive PLC control loops and sensor networks.
Space-saving 150V DC surge protector designed for telecommunication base stations and industrial battery storage systems.
Heavy-duty 500V DC surge protector, widely used in residential solar string boxes and industrial DC control panels.
Our flagship SROCHN series 800V DC surge protector, offering premium thermal disconnection and high reliability.
Don't wait for the next lightning storm to test your electrical systems. Partner with Zhejiang Shuorui Electric Co., Ltd. (SROCHN) for high-performance, certified surge protection solutions custom-tailored for Hanoi's industrial and solar projects.