Feature: 1. [Surge Protection] When a surge overvoltage occurs in the system, the protector is turned on immediately, and the surge overvoltage is introduced into the ground to ensure the electrical equipment. 2. [Modular Design] The protector adopts a modular design, which is very simple to use and maintain, and has good electrical conductivity. 3. [PC Flame Retardant Shell] The protector shell is made of PC insulating flame retardant material, which is dust proof and waterproof, making it safer to use. 4. [Stable Performance] The inside of the protector adopts accuracy electronic components, which has more stable performance and helps you to complete the work more efficiently. 5. [Easy Installation] The protector adopts 3P guide rail installation, the installation is very simple, and it can be used with the circuit breaker of the distribution box. Specification: Item Type: PV DC Surge Protector Material: Flame retardant PC Maximum Continuous Working Voltage UC: 1000V DC Nominal Discharge Current In: 10kA (8/20μs) Maximum Discharge Current Imax: 20kA (8/20μs) Voltage Protection Level Up: ≤2.4kV Number of Poles: 3P Installation: Approx. 36mm / 1.4in rail Protection Class: IP20 Working Temperature: -40℃-80℃ Humidity: ≤90% (average 25℃). Package List: 1 x PV DC Surge Protector Note: 1. The power must be cut off before installation, and live operation is strictly prohibited2. Please connect as shown in the installation diagram during installation, in which + is the positive wire and ‑ is the negative wire. Do not make wrong connections. After the installation is complete, close the automatic circuit breaker (fuse) switch to check whether the working state is normal.