2-Module Surge Arrestor 20kA 1P+NPE 275V

This 2-module surge arrestor provides reliable protection for single-phase electrical installations with neutral and earth conductors. Rated for 20kA surge current with a voltage protection level (UC) of 275V, it features an indication window to signal when the device requires replacement. Ideal for residential, commercial, and industrial panels to protect sensitive equipment from transient overvoltages.