Features Good Durability: Adopting premium materials, the effective lightning arrester is very durable for long time use. Surge Protector - Works great to protect the DC power system from lightning or surges. Reliable Operation: Comes with a rated discharge current of 20 kA In and a maximum discharge current of 40 kA Imax. Safe Protection The maximum continuous working voltage of 500V DC Uc ensures more stable circuit operation. EASY TO INSTALL - Very easy to connect to the circuit and simple wiring can be done in minutes. Specification: Item Type: Surge Protection Device Model: CHLT-40PV Maximum continuous operating voltage Uc: 500VDC Rated discharge current In: 20kA (8/20μs) Maximum discharge current Imax: 40kA (8/20μs) Upper voltage protection level: ≤2.8kV Number of poles: 2P Protection level: IP20. Operating temperature: -40℃~80℃, Humidity: ≤90% (average at 25℃). Package list: 1 x Surge Protection Device 1 x divider sheet. Tips: 1. The power supply must be cut off before installation, and hot 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 plug it wrong. After installation, close the switch of the automatic circuit breaker (fuse) and check whether the working status is normal. Package List 1 x Surge Protective Device 1 x Slip Sheet