3-Pole Surge Arrestor 40kA 275V Protection Device

A 3-pole surge arrestor rated for 40kA surge current and 275V nominal voltage, designed to protect electrical installations from transient overvoltages caused by lightning strikes and switching operations. This device provides reliable protection for main distribution boards, sub-boards, and sensitive downstream equipment in both commercial and industrial applications. Ideal for electricians and facilities managers installing or upgrading surge protection systems to comply with SANS/IEC standards.