Feature: 1. PC FLAME RETARDANT MATERIAL: The product shell is made of PC flame retardant material, which is safer to use. Modular design, very simple to use and maintain, and good conductivity. 2. VARIOUS CONTROLS: Surge protection device is equipped with built in short circuit technology for overcurrent, overheating, and temperature control. The maximum continuous working voltage of the product is 385V. 3. STABLE AND DURABLE: The surge protection device uses accurate electronic components, with a longer service life and more stable performance, helping you complete your work more effectively. 4. SAFETY PROTECTION: When the system experiences surge overvoltage due to lightning or other reasons, the protector will quickly open within nanoseconds and introduce the surge overvoltage to the ground to defend electrical equipment. 5. INSTALLATION METHOD: 4P surge protector adopts a standard 35mm guide rail, which is easy to install and can be used in conjunction with the distribution box circuit breaker. Specification: Item Type: PV Surge Protection Device Material: PC Flame Retardant Maximum Continuous Working Voltage Ucpv: 385VAC Nominal Discharge Current In: 20KA (8/20 μ S) Maximum Discharge Current Imaximum: 40KA (8/20 μ S) Voltage Protection Level Up: Less than or equal to 2.5KV Protection Level: IP20 Indication: Green normal, red fault Installation: 35mm standard guide rail Working Temperature: -40 ℃ to 80 ℃ Humidity: Less than or equal to 90% (at an average of 25 ℃). Package List: 1 x PV Surge Protection Device