Features 1、It is suitable for C and D level lightning protection, it is used for the equipotential connection when lightning strikes, quick response when lightning occurs, unloading voltage, protecting home appliances and your safety. 2、Flame retardant shell, fire proof, safe to use 3、It has the characteristic of stable performance, and easy to install 4、Removable assembly, easy to plug and unplug 5、Guide rail installation, simple operation Specification Features: It is suitable for C and D level lightning protection, it is used for the equipotential connection when lightning strikes, quick response when lightning occurs, unloading voltage, protecting home appliances and your safety. Flame retardant shell, fire proof, safe to use It has the characteristic of stable performance, and easy to install Removable assembly, easy to plug and unplug Guide rail installation, simple operation Specification: Material:PC Flame retardant material Number of poles: 3P Response time: ≤25ns Rated voltage: 420V Maximum discharge current: 40KA Up: ≤1.8kv Weight: Approx.359g/12.7oz Package list: 1 x House Surge Protector Package List