4-Pole Surge Arrestor – 40kA, 275V Protection Device

A 4-pole surge arrestor designed to protect electrical installations from transient overvoltages and lightning strikes. With a rated discharge current of 40kA and a nominal voltage of 275V, this device provides reliable protection for three-phase plus neutral systems in residential, commercial, and industrial applications. Ideal for use at the main switchboard or distribution panel to safeguard downstream equipment and circuits.