Allen-Bradley 509-BAB-6P Industrial Relay 115-120V

Allen-Bradley 509-BAB-6P is a NEMA Size 1 full‑voltage non‑reversing motor starter from Rockwell Automation, designed for reliable start/stop control of 3‑phase motors in industrial panels. It handles 460–480 V, 60 Hz line voltage across three power poles and includes an internal control transformer with a 480 V primary and 120 V secondary to feed a 115–120 V, 60 Hz starter coil. The unit ships with an eutectic alloy overload relay for motor protection and a Type 1 general‑purpose enclosure suitable for indoor installation. This variant provides 120 V control power from the transformer, enabling a compact control circuit within the starter assembly. As a non-reversing starter, it fixes motor rotation direction and simplifies wiring and protection in applications such as conveyors, pumps, fans, and other general‑purpose industrial equipment. With its integrated transformer and protective relay in a single package, the 509‑BAB‑6P reduces panel footprint and wiring complexity while delivering the required control voltage compatibility for typical 115–120 V control circuits.