Protect your valuable electrical systems and appliances with this surge protector, designed to shield against transient lightning strikes and voltage surges. Featuring a visual alarm window for real-time status: Green indicates normal operation, while red signals a fault. Crafted from flame-retardant and corrosion-resistant PC material, ensuring robust protection for the internal components. Easy to use with a plug-in design and hotline support, simplifying operation. The isolated terminal blocks enhance reliability and safety. Quick and easy installation using standard rail mounting, allowing for rapid setup in just a few steps. Technical Specifications: Material: PC Maximum Discharge Current (Imaximum): 200KA Nominal Discharge Current (In): 100KA Protection Level (Up): 3.0KV Protection Class: IP20 Response Time: ≤ 25ns Maximum Wire Diameter: 35mm² (solid or stranded) Recommended Connection: 4 to 25mm² Installation Method: 35mm DIN rail mounting Ambient Temperature: -40℃ to +80℃ How it Works: In a three-phase, four-wire system, the protector connects to three phase lines and a neutral line. Under normal conditions, it remains in a high-resistance state. When a surge occurs due to lightning or other causes, the protector instantly switches on within nanoseconds, diverting the surge to ground and safeguarding connected equipment. Once the surge subsides, the protector returns to its high-resistance state, ensuring normal grid operation.