Allen-Bradley 509-A0D NEMA Size 0 Motor Starter

Allen-Bradley 509-A0D is a NEMA Size 0 motor starter from the 509 family, offered in an open enclosure for compact control-panel installations. Catalog number 509-A0D, it uses a 120 V AC coil and is configured as a standalone starter with no built‑in enclosure accessories. Designed for small AC motors, it carries a continuous current rating up to 18 A at Size 0, enabling reliable motor switching in tight spaces. The open-type form factor makes it suitable for panel-based control circuits where space is at a premium, and its 509-series heritage signals interoperability with other Allen-Bradley components in a complete motor-starter setup. Typical applications include machine controls, fans, and other compact equipment where a low-profile, open starter is advantageous for straightforward control-wiring practices. This unit provides a straightforward, field-wireable solution for starting small motors in industrial environments, aligning with the needs of electricians and control engineers who require a compact, reliable starter within the 509 Size 0 family.