Allen-Bradley 73A16 Coil For 3-Phase Contactor

Allen-Bradley 73A16 Coil for 3-Phase Contactor is a replacement AC coil designed for Allen-Bradley size-3 contactors used in industrial motor control. It provides a 550 VAC coil rating, typically specified for 50 Hz service, and is intended to energize a three-pole starter to switch 3‑phase loads in panels, conveyors, pumps, and HVAC systems. The designation 73A16 appears in Rockwell Automation literature as the coil for size-3 Table P configurations, and distributors list it as the 550‑volt coil compatible with 2- to 3-pole Allen-Bradley starters. In practice, this coil is sourced by suppliers as a legacy AB replacement part and has been listed by Radwell as “Discontinued by Manufacturer” for 550 VAC, 50 Hz operation. This coil is used as a direct replacement to restore original control functionality when the matching contactor coil is worn or damaged; ensure compatibility by matching the original equipment part number and confirming the pole configuration of your specific starter. Common applications include industrial motor control circuits for machinery, pumps, and fans that rely on a 550 VAC control circuit.