DC SPD

As a power protection expert with nearly 30 years of R&D experience, Zhejiang Dongan Electrical Co., Ltd. is committed to providing global customers with high-standard, high-reliability DC circuit safety solutions. Our DC SPD series is specifically designed for photovoltaic power generation systems, energy storage, and industrial DC power distribution. It can rapidly discharge current during lightning strikes or operational overvoltages, ensuring the safety of expensive downstream equipment (such as inverters and battery packs).


Why Choose Dongan Electrical?

Authoritative Certifications and Quality Assurance:

All products are CE, CB, TUV, and CCC certified, and our laboratory has RoHS 2.0 testing capabilities. Our factory has obtained ISO9001, ISO14001, and ISO45001 system certifications, ensuring that every SPD can withstand rigorous environmental testing.


Deep R&D Accumulation:

Leveraging nearly 30 years of experience in electrical design and manufacturing, we possess fully automated production lines and advanced testing equipment (such as short-circuit current testers and overload testers). Our product designs prioritize environmental protection, safety, and flame retardancy.


One-Stop Supply Capability:

In addition to DC SPDs, we also provide matching DC MCCBs (Modified Case Circuit Breakers) and mold processing services, offering you complete DC power distribution protection solutions.


Exceptional Service Pursuit:

We consistently strive for "As Good as It Gets," providing highly competitive prices and rapid supply to help our customers achieve win-win results in the photovoltaic and industrial power markets.

Friendly Reminder: When selecting a DC SPD, please ensure that the system's maximum continuous operating voltage $U_c$ is higher than the system's open-circuit voltage.


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T2 DC1000V Surge Protector Device SPD

T2 DC1000V Surge Protector Device SPD

GREENWATT factory’s T2 DC1000V Surge Protector Device SPD is designed to protect high-voltage DC1000V systems from voltage surges. It’s designed for large PV arrays, medium to large energy storage systems, and DC power lines that operate at DC1000V . It limits dangerous voltage spikes caused by lightning or grid issues, keeping expensive equipment like high-voltage inverters and battery clusters safe. It’s built to handle the higher demands of 1000V systems, with strong surge tolerance and reliable performance.

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T2 DC500V Surge Protector Device SPD

T2 DC500V Surge Protector Device SPD

Summary: The T2 DC500V Surge Protector Device SPD is a secondary DC surge protection device manufactured by GreenWatt, a subsidiary of Zhejiang Dong'an Electric. It focuses on providing stable overvoltage protection for 500V DC systems. This product effectively suppresses voltage spikes caused by lightning strikes and grid fluctuations. It is suitable for small energy storage systems, low-voltage photovoltaic arrays, DC distribution lines, and other scenarios, protecting the stable operation of critical equipment such as inverters and battery management systems. It features easy installation, durable operation, and precise protection.

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Buy DC SPD made in China from our factory. As one of the China DC SPD manufacturer and supplier, we can provide customers with stable and high-quality products.
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