Feature: 1. Protect DC Power System: Voltage surge arrester device can protect the DC power system from thunder strikes or overvoltage 2. Longer Service Life: Longer service life and more stable performance helping you to complete your work more efficiently 3. Safer To Use: DC surge protector is safer to use, come with good quality and excellent performance 4. 2P Rail Installation: The voltage arrester device using 2P rail installation, the installation is very simple, easy to operate 5. Visual Window: Surge protective device come with visual window, clearly indicate power on and off at a glance, easy to observe Specification: Item Type: Voltage Surge Arrester Device Model: LT1-40(orange module) Nominal Discharge Current In: 20kA (8/20μs) Maximum Discharge Current Imaximum: 40kA (8/20μs) Number of Poles: 2P Protection Level: IP20 Working Temperature: -40℃~80℃, Humidity: ≤90% (average at 25℃). Package List: 1 x Voltage Surge Arrester Device Note: 1. The power supply must be cut off before installation, and live operation 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.