Feature: 1. FLAME RETARDANT PC: The shell of DC surge protection device is made of PC flame retardant material, safer to use. Adopt modular design, very simple to use and maintain with good conductivity 2. VARIOUS CONTROLS: The surge protection device has built in short circuit technology for overcurrent, overheat and temperature control. The maximum continuous operating voltage of the product is 500V 3. STABLE AND DURABLE: The surge protective device use accurate electronic components for longer service life and more stable performance to help you complete your work more effectively 4. SAFETY PROTECTION: When a surge overvoltage occurs in the system due to thunder or other reasons, the protector immediately opens quickly within nanoseconds, and introduces the surge overvoltage into the ground to protect the electrical equipment 5. INSTALLATION METHOD: 2P surge protector uses a standard 35mm guide rail for easy installation and used in conjunction with distribution box circuit breaker Specification: Item Type: PV Surge Protection Device Material: PC Maximum Continuous Working Voltage Ucpv: 500V DC Nominal Discharge Current In: 20kA Maximum Discharge Current Imaximum: 40kA Voltage Protection Level Up: 2.0KV Protection Class: IP20 Indicator: Green for normal, red for fault Installation: 35mm Standard rail Working Temperature: -40℃~80℃, Humidity: ≤90%(when average 25℃) . Package List: 1 x PV Surge Protection Device