Features: Application: Protect electric system and on-loading electrical apparatus from thunder and instantaneous over-voltage; 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: 4 Response time: ?25ns Rated voltage: 385VAC Maximum discharge current: 80KA Up: ?2.4 kv Weight: Approx.470g/16.6oz Package list: 1 x House Protector