Allen-Bradley 509-AOD Industrial Manual Motor Starter

Allen-Bradley 509-AOD is a NEMA size 0 enclosed, non-reversing, direct-online motor starter designed for 3‑phase motors. It combines a 120 VAC control coil with a 600 VAC maximum on the power circuit and incorporates an eutectic alloy overload with manual reset to protect the driven load. This full-voltage starter provides straightforward motor control in industrial panels, delivering reliable starting and integrated overload protection in a compact size-0 enclosure. The 509‑AOD is commonly used to start small industrial motors, with an HP rating around 5 HP at 120 VAC control in typical configurations, though exact ratings vary by voltage and wiring; consult the official catalog for your specific installation.