1、SPECIFICATIONS: 2P surge protector, plug in design, support hot line operation, 35mm standard guide rail installation is simple and convenient. 2、WORKING INDICATOR: With working status indication window, green indicates normal, red indicates fault, and effectively reflects working status. 3、MAIN PURPOSE: Prevent the household power grid from being excessively impacted, with quick response speed and strong bearing capacity. 4、WORKING PRINCIPLE: When surge overvoltage occurs in the system due to thunder or other reasons, the protector will open and lead the overvoltage to the ground. 5、PC HOUSING: The surge protector shell is made of PC material, which is fire and corrosion resistant, with safe operation and long in service life.