Features Applicable Scene: Mainly suitable for 50Hz or 60HZ impulse current capacity not greater than 200kA in the electrical circuit Limit Amplitude: Limit transient overvoltage amplitude, absorb, consume or discharge surge current energy Converting Effect: In the case of a higher overvoltage category, the protected electrical components can be converted from high to a lower one Protecting Function: Protect household appliances in the event of inductive lightnings strikes or operating overvoltages on the line Installation Method: The installation method of the house surge protector is matched with TH35mm wide rail Specification:Item Type: House Surge Protector Model: LY20 Specifications: 4P20KA Rated Voltage: 220V, 380V Maximum Sustainable Working Voltage: 385V Maximum Discharge Current: 20KA Nominal Discharge Current: 10KA Voltage Protection Level: ≤1.5KV Response Time: ≤100nS Ambient Temperature: -40℃~+80℃ Altitude: Not more than 2000 meters Approx. 2000 meters / 6561.7ft Relative Humidity: Not more than 90% (25℃) Package List:1 x House Surge Protector  Note:1. The indicator window of the module is green (Normal). When the module deteriorates, the indicator window turns red and must be replaced in time;2. The surge protector can be equipped with (FS) remote remote signal alarm. The remote signal contact has one normally open and one normally closed. If one or more modules of the surge protector fail, the contact will be closed and a fault alarm signal will be sent to indicate The module must be replaced if it fails.3. Always check the air switch or fuse connected in series on the line. Package List 1 x House Surge Protector