Features： 1、For Less Than 200kA Electrical Circuit: The arrester module(surge protector) is mainly suitable for 50Hz(or 60HZ) impulse current capacity not greater than 200kA in the electrical circuit 2、Absorb, Consume or Discharge Surge Current: Limit transient overvoltage amplitude, absorb, consume or discharge surge current energy 3、Convert to Lower Overvoltage Category: In the case of a higher overvoltage category, the electrical components to be protected can be converted from one overvoltage category to another lower overvoltage category 4、Electrical Appliances Protection: Suitable for the protection of electrical appliances in households and similar places when there is an induced overvoltage in the line, and when operating overvoltage occurs 5、TH35mm Wide Rail Installation: Installation method is matched with TH35mm wide rail, easy to install and use Specification： Item Type: Surge Protective Devices Product Model: BEM-LY40 Product Specifications: 4P40KA Maximum Discharge Current: 40KA Nominal Discharge Current: 20KA Response Time: ≤25nS Ambient Temperature: -40℃~+80℃ Altitude: Not more than 2000meter Relative Humidity: Not more than 90%(25℃) Package List： 1 x Surge Protective Devices