Features High Impulse Current Capacity: Suitable for 50Hz (or 60Hz) electrical circuits with an impulse current capacity less than 200kA, providing reliable surge protection for various applications. Surge Limiting Technology: Limits the amplitude of transient overvoltage, ensuring the protection of electrical components and appliances from damaging surge currents. Enhanced Circuit Protection: Effectively converts electrical components from a higher overvoltage category to a lower one, safeguarding against potential damage from overvoltage situations. Versatile Household Protection: Ideal for safeguarding electrical appliances in households and similar locations from induced lightning overvoltage and operating overvoltage. Convenient Installation: Designed for easy installation with its small size and light weight, compatible with TH35mm wide rail for hassle-free setup. Specification: Item Type: Surge Protective Device Product Model: BEM-LY40 Product Specification: 3P40KA Rated Voltage: 220V, 380V Maximum Sustainable Working Voltage: 385V Maximum Discharge Current: 40KA Nominal Discharge Current: 20KA Voltage Protection Level: ≤1.8KV Response Time: ≤25nS Ambient Temperature: -40℃~+80℃ Altitude: not more than 2000 meters (Approx. 2000m / 6561.7ft). Relative Humidity: Not more than 90% (25℃). Package List: 1 x Surge Protective Device Note: betweendiv>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; between/div>betweendiv>2. The surge protector can be equipped with (FS) remote signal alarm. The remote signal contact has one normally open and one normally closed. If one or multiple modules of the surge protector fail, the contact will be closed and a fault alarm signal will be sent, indicating that the module is faulty and must be replaced. between/div>betweendiv>3. Frequently check the air switch or fuse connected in series on the line. between/div> Package List 1 x Surge Protective Device