Features： 1、Sensitive Response: When there is a surge overvoltage in the system, the sensitive protector immediately opens quickly within nanoseconds and introduces the surge overvoltage into the earth to ensure the power equipment. 2、PC Housing: The PC housing of the surge protector is fire and corrosion resistant, and the plug in design supports hot wire operation for ease of use. 3、3 Phase: In the three phase four wire system, the three phase lines and a neutral wire to ground are connected between the protector. 4、Easy Installation: This surge protector is compact and easy to use with rail mounting, effectively protecting electrical equipment. 5、Wide Application: This surge protector has a wide range of applications and can be used in homes, offices and other places, and is very easy to install on the rail. Specification： Item Type: Surge Protector Material: PC Installation: 35mm electrical track Uc: -420V Imax: 20KA In: 10KA Up: ≤2.0KV Operating Ambient Temperature: -40℃-80℃ Package List： 1 x Surge Protector