Features 1、Application: Protect electric system and on-loading electrical apparatus from thunder and instantaneous over-voltage 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: Flame retardant shell, fire proof, safe to use It has the characteristic of stable performance, and easy to install Guide rail installation, simple operation Specification: Material: PC Flame retardant material Number of poles: 4P Response time: ≤25ns Rated voltage:385V Maximum discharge current: 65KA Up: ≤2.2kv Connection: three-phase four-wire Weight: Approx.466g/16.4oz Package list: 1 x House Surge Protector Package List