LSP is a leading global supplier of 3 phase surge protector solutions, serving over 1,200 companies worldwide, including leading solar, industrial, and infrastructure brands, system integrators, and project developers.
3 phase surge protectors are widely used in industrial manufacturing facilities, commercial buildings, data centers, and infrastructure projects where stable three-phase power is essential. These environments often operate heavy machinery, HVAC systems, elevators, and sensitive automation equipment, all of which are highly vulnerable to transient overvoltages caused by switching loads, internal electrical disturbances, or lightning-induced surges.
In renewable energy applications, 3 phase SPDs are commonly installed in solar power plants, wind energy systems, and battery energy storage systems (BESS) to protect inverters, transformers, and grid connection equipment. 3 phase surge protectors are used to safeguard modern smart home systems, EV chargers, and high-power appliances, especially in regions with unstable grids or frequent lightning activity.
AC 3 phase surge protectors are available in Type 2, Type 2+3, and Type 3 configurations, all designed in accordance with IEC/EN 61643-11 standards. Type 2 SPDs are tested using an 8/20 µs surge current waveform. Type 2+3 SPDs combine 8/20 µs surge current and 1.2/50 µs surge voltage waveforms, while Type 3 SPDs are characterized solely by a 1.2/50 µs surge voltage waveform.
We hold TUV, CB, CE, and ISO 9001 certifications. Our 3 phase surge protectors are rigorously tested to IEC/EN 61643-11 and IEC/EN 61643-31 standards, guaranteeing performance, safety, and compliance with international requirements.
The 3 phase surge protector is mounted on a DIN rail inside the distribution panel or control cabinet, with each phase and the neutral conductor connected according to the wiring diagram.
Proper grounding and short connection lengths are essential to ensure effective protection against transient overvoltages and lightning-induced surges.
3 phase surge protectors enable real-time monitoring of operating status through remote signaling terminals, allowing maintenance personnel to respond promptly and effectively enhancing overall system safety and reliability.
3 phase surge protectors play a critical role across various environments, including industrial plants, commercial buildings, infrastructure projects, and residential communities.They safeguard sensitive equipment against lightning strikes, switching surges, and transient overvoltages, ensuring reliable operation of electrical systems.
At LSP, we engineer our 3 phase surge protectors to perform under the most demanding conditions. Whether you need an industrial 3 phase surge protector, a commercial 3 phase panel SPD, or a residential 3 phase surge arrester, LSP ensures top-tier performance.
We aim to provide the market with the safest and most reliable 3 phase surge protectors, meeting the needs of both direct use and global distribution. All surge protection devices (SPDs) are manufactured under strict quality management and undergo comprehensive testing to ensure their performance and reliability.
A 3 phase surge protector is essential for residential, commercial, and industrial installations, ensuring compliance with IEC 61643 standards.
A 3 phase surge protector (also known as a 3 phase surge protection device) is an essential electrical safety device designed to safeguard wiring systems, consumer units, and sensitive equipment from transient overvoltages on three-phase AC power lines. These devices are widely used as 3 phase SPD for residential, commercial, and industrial installations to prevent damage caused by lightning strikes, switching operations, or power surges.
3 Phase Surge Protector Device is designed to protect electrical equipment from voltage spikes caused by events like lightning strikes or switching operations.
There are different types of SPDs used for varying applications, and they are wired differently based on the system requirements.
| EN 61643-11:2012 | IEC 61643-11:2011 | VDE 0675-6-11:2002 | In (80/20μs) | Imax (8/20μs) | Iimp (10/350μs) | Uoc (1.2/50μs) |
| Type 1 | Class I | Class B | 25 kA | 100 kA | 25 kA | / |
| Type 1+2 | Class I+II | Class B+C | 20 kA | 50 kA | 7 kA | / |
| 12.5kA | ||||||
| Type 2 | Class II | Class C | 20 kA | 40kA | / | / |
| Type 2+3 | Class II+III (or III) | Class C+D (or D) | 10 kA | 20kA | / | 20 kV |
| 5 kA | 10 kA | 10 kV |
For diverse applications in industrial, commercial, and residential settings, we offer Type 1, Type 2, or combined Type 1+2 and Type 2+3 three phase surge protectors. They are available in both DIN-rail mounted and panel-mounted configurations to suit various installation needs.
Yes. We supply 3 phase surge protectors that are specifically designed for outdoor use. They provide robust protection for power distribution systems and sensitive equipment, ensuring reliable performance even in harsh weather conditions.
Absolutely. Many of our 3 phase surge protectors come equipped with advanced monitoring features, such as remote signaling and clear status indicators. This allows operators to easily monitor the SPD's status and perform timely maintenance, ensuring continuous protection.
Yes. We offer a range of three phase surge protectors specifically engineered for the lower-power or distributed loads found in both residential and commercial buildings, providing effective and reliable surge protection for these environments.
Yes. Our comprehensive product line includes specific models for all common power distribution systems, including TT, TN-S, and TN-C-S (PME) systems. We offer both 3+1 and 4-pole configurations to meet the specific grounding requirements of your installation.
Choosing the right 3 phase surge protector depends on your specific installation environment and the level of protection needed. Type 1 SPDs are used at the service entrance for protection against direct lightning strikes, Type 2 SPDs are installed in distribution boards for general surge protection, and Type 3 SPDs offer final, fine-level protection for sensitive equipment. Our team of experts can assist you in selecting the ideal solution. Contact LSP for expert guidance in selecting the right three phase SPD for your project.
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