Since 2010, LSP has specialized in high-performance DC surge protective devices (SPDs) that safeguard systems from transient overvoltages caused by lightning and switching operations. Certified by ISO9001, TUV, CB, and CE, LSP uses premium components such as LKD MOVs, Vactech GDTs to ensure durability and long-term reliability across solar PV, energy storage, and e-mobility applications.
Engineered in full compliance with IEC/EN 61643-31, LSP’s DC SPDs, featuring Type 1+2 and Type 2 DC Surge Protectors, offer a robust modular design compatible with 3+1 and 4+0 configurations, delivering stable protection in demanding environments. Backed by a 5-year warranty and responsive technical support, LSP provides dependable surge protection that keeps every DC system operating safely, efficiently, and without interruption.
As leading SPD manufacturers, we offer comprehensive DC Surge Protection Solutions for reliable and versatile protection across diverse DC applications.
As one of the best surge protector brands, LSP ensures unmatched protection and reliability, safeguarding your electrical systems with superior performance.
Our patented safety core is engineered to overcome thermal runaway from DC arcs—the primary fire risk—achieving this quantifiable reduction in catastrophic thermal events compared to conventional mechanisms.
We specify a glass-fiber reinforced composite (PA6+GF30%) for its exceptional mechanical strength and thermal stability. Validated by rigorous glow-wire testing, this critical choice ensures the housing maintains its integrity and will never contribute to a fire.
Our DC SPD adopts a polarity-tolerant structure that prevents damage from reversed wiring, making installation faster, safer, and worry-free.
Our SPD's capability to protect against both direct lightning currents and switching surges is validated through rigorous testing to both 10/350 µs and 8/20 µs waveforms, ensuring comprehensive defense for your electrical systems.
Our SPD uses reinforced metal contacts (8 mm × 0.8 mm). This high-mass design significantly lowers resistance and heat buildup, mitigating the constant thermal stress of DC systems to ensure stable, long-term protection.
Our DC SPD employs fully sealed MOVs proven stable under 85 °C / 85% RH testing, resisting moisture and dust for durable outdoor performance.
We use high-quality MOVs from LKD and GDTs from Vactech to ensure the stability and lightning protection performance of our DC surge protectors.
Through an advanced soldering process and an optimized low-temperature trip mechanism, our R&D team enhances the device’s arc suppression and fire prevention capabilities.
Flame-retardant plastic casings provide superior flame resistance. Premium brass, red copper, and phosphor bronze components ensure corrosion resistance, even during sea transport.
LSP’s DC surge protectors undergo strict testing and hold TUV, CB, and CE certifications, ensuring safety, durability, and long-term reliability.
LSP’s DC Surge Protective Devices (SPDs) deliver certified DC surge protection across a wide range of DC applications. Each device is rigorously tested to IEC/EN 61643-31 standards, ensuring reliable, long-term safety and performance. Designed for versatile integration, our SPDs provide superior protection against lightning and switching surges in diverse DC power systems.
LSP’s DC surge protectors deliver robust, application-specific protection across a variety of critical sectors — including solar PV systems, energy storage systems, wind turbines, electric vehicle charging stations (e-mobility), telecommunications & data centers, industrial DC power systems, LED lighting, control systems, and process utilities (e.g., water treatment).
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