Allen-Bradley 70A81 Coil

Allen-Bradley 70A81 Coil is a 600V AC coil replacement for Allen-Bradley motor-control contactors and starters, designed to energize the associated contactor when the control voltage is applied. The coil is rated for 600V at 60 Hz and 550V at 50 Hz, making it compatible with 600V-class systems and regional 50/60 Hz power standards, and it carries the Allen-Bradley (Rockwell Automation) branding for use with compatible contactors or starters in industrial automation. The part number 70A81 identifies this specific coil, which is intended to be used with matching Allen-Bradley contactor models; many distributors list it as suitable for 600V/60 Hz operation in industrial motor-control circuits. Availability can vary, as some sources list the 70A81 as discontinued by the manufacturer, with current stock often sourced through third-party or aftermarket distributors. Typical applications include motor-control center setups, conveyors, pumps, and other heavy-load equipment where a 600V-class AC coil is required to operate the control relay. When replacing, verify exact coil voltage and frequency against the target Allen-Bradley contactor or starter model and ensure electrical compatibility with the control circuit to maintain proper operation and safety.