Features Surge Over Voltage Protection: Our device has ultra high sensitivity, which will open rapidly within nanoseconds when the system has surge over voltage due to lightning stroke or other reasons, effectively protect electrical equipment. Good Conductivity: Use precise electronic components, with good conductivity and stable performance, can help complete work more effectively. Guide Rail Installation: The surge protector adopts standard 36mm guide rail installation, can be used together with circuit breaker of the distribution box. Widely Used: The surge protective device can be used for indoor community, commercial building, shopping mall, school, hospital building, household and more. Flame Retardant: The housing of this surge protective device adopts PC flame retardant material, which is very safe and reliable for use. Specification: Item Type: 2P Surge Protective Device Material: PC Maximum Continuous Working Voltage Uc: 1000V DC Nominal Discharge Current In: 20kA (8/20μs) Maximum Discharge Current Imaximum: 40kA (8/20 μs) Voltage Protection Level Up: ≤3.5kV Number of Poles: 2P Protection Grade: IP20 Working Temperature: -40℃ to 80℃, Humidity: ≤90% (Average 25℃) Package List:1 x 2P Surge Protective Device Package List 1 x 2P Surge Protective Device