Feature:1. Surge Protector: Works perfectly in protecting the DC power system from lightning strike or over voltage.2. Reliable Working: Comes with 20kA nominal discharge current In and 40kA maximum discharge current Imax.3. Safe Protection: The 500V DC maximum continuous working voltage Uc ensures more stable circuit operating.4. Good Durability: Adopting premium materials, the efficient voltage arrester is very durable for long use.5. Easy to Install: Very easy to connect to the circuit, and the simple wiring can be completed in minutes.Specification:Item Type: Surge Protective DeviceModel: CHLT-40PVNominal Discharge Current In: 20kA (8/20s)Maximum Discharge Current Imax: 40kA (8/20s)Number of Poles: 2PProtection Level: IP20Working Temperature: -40~80, humidity: 90% (average at 25). .Package List:1 x Surge Protective Device1 x Slip SheetNote:1. The power supply must be cut off before installation, and hot line work is strictly prohibited; 2. When installing, please connect according to the installation diagram, where + is the positive wire and ‑ is the negative wire. Do not connect it wrongly. After installation, close the automatic circuit breaker (fuse) switch and check whether the working state is normal.