The ABB AF75‑40‑00 is a 4‑pole industrial power contactor designed for switching and controlling electrical power circuits in industrial and commercial applications. It features a robust block‑type design with four normally open main contacts, and it is suitable for switching non‑inductive or slightly inductive loads such as heating elements, lighting, and motor circuits up to high voltage ratings. The contactor accepts a wide range of control voltages (AC or DC) and is built to withstand voltage fluctuations and interruptions in control circuits. Typical uses include motor control, power distribution switching, and integration into motor starter assemblies with overload protection and auxiliary accessories.
