Feature: 1. Flame Retardant PC: The casing of this 3P surge protective device is made of flame retardant PC material, ensuring secure and reliable use. Modular design, making it convenient to use and maintain, with good conductivity. 2. Circuit Guard: Built in short circuit technology, for overcurrent, overheating, and temperature control. The rated working voltage of this surge protector is 1000VDC, and the maximum continuous working voltage is 1060VDC. 3. Working Principle: When the system experiences surge overvoltage due to thunderstrike or other reasons, the protector quickly starts and introduces the surge overvoltage into the ground to protect the electrical equipment. 4. 35MM Rail Mount: This 3P surge protector adopts standard 35MM rail installation and is compatible with distribution box circuit breakers (not included). It is suitable for household electrical and photovoltaic system. 5. Excellent Components: This surge protective device uses detailed electronic components to ensure stable and reliable performance, greatly extending its service life and helping you complete your work more effectively. Specification: Item Type: 3P Surge Protector Material: Flame Retardant PC Rated Working Voltage Un: 1000VDC Maximum Continuous Working Voltage Uc: 1060VDC Nominal Discharge Current In: 20KA Maximum Discharge Current Imax: 40KA Voltage Protective Level Up: 3.2KV Protective Level: IP20 Indication: Green Normal, Red Fault Installation: 35mm Standard Rail Working Temperature: -20℃-60℃ Working Humidity: ≤90% (Average 25℃) Size: Approx. 91 x 54 x 66mm / 3.6 x 2.1 x 2.6in. Package List: 1 x Surge Protector