Features 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 Device Shell Material: Fireproof and high flame retardant PC UC: 1000VDC In: 20KA (8/20μs) Inmaximum: 40KA (8/20μs) Up: ≤3.8KV Installation: 35 standard guide rail Protection Grade: IP20 Package List 1 x Surge Protective Device