Feature:1. High Safety Design: Built in over current, overheating and temperature controlled short circuit technology, with high safety and reliability.2. High Performance: Small leakage current, quick response time and low residual voltage, the surge protector effectively protects your electrical appliances from damage.3. Status Display: A visual window is designed, and different colors indicate different working states of the protector, which is intuitive and convenient.4. Easy Installation: Adopt 35mm standard rail mounting, this protector is very to install in the household power distribution box.5. Failure Protection: Built in failure release device, when the surge protector fails due to over current overheating and breakdown, the failure release device will automatically disconnect it from the power grid.Specification:Item Type: Surge Protective DeviceShell Material: Fireproof and high flame retardant PCUC: 1000VDCIn: 20KA (8/20s)Inmaximum: 40KA (8/20s)Up: 3.8KVInstallation: 35 standard guide railProtection Grade: IP20.Package List:1 x Surge Protective Device