Feature: 1. Main Application: This surge protector is used to defend DC power line system and other equipment from overvoltage and transient overvoltage. 2. PC Material: Made of premium PC material, the surge protector is flame retardant, insulated and heat resistant, ensuring a long life span. 3. Large Discharge Current: The advantages of the protector are large discharge current, low residual voltage, large discharge capacity and quick response time. 4. Safe to Use: This protector is designed with double thermal circuit breaker, which provides more reliable protection, you can choose and use it with confidence 5. Easy to Install: Adopts DIN rail installation method and the protector is light weight as well, the easy installation can be quickly completed. Specification: Item Type: 3P DC Surge Protector Material: PC Flame Retardant Maximum Continuous Operating Voltage Uc: 600V DC Nominal Discharge Current In (8/20 μ s): 20kA Maximum Discharge Current Imaximum (8/20 μ s): 40kA Maximum Impact Current Iimp: 6.25kA Voltage Protection Level Up: 2.6kV. Package List: 1 x 3P DC Surge Protector