Allen-Bradley 74A81 is an industrial relay coil assembly designed to energize Allen-Bradley contactors or starters. This AC coil is rated for 550 V AC at 50 Hz or 600 V AC at 60 Hz, providing the excitation needed to switch the main contacts in motor-control circuits. The coil is listed as discontinued by the manufacturer, with current retailer listings describing it specifically as the 74A81 coil for Allen-Bradley contactors or starters.
