Allen-Bradley 509-A0D Series-B Size-0 motor starter is a compact, non-reversing full-voltage starter designed to start small three-phase motors. It uses a 120 V AC coil and is categorized as Size 0, Series B. Verified listings show an 18 A, 600 VAC rating, making it suitable for light- to medium-load motor control in industrial panel work. Part of Allen-Bradley’s 509 motor starter family, this unit is commonly used in control circuits where a simple, reliable motor-start solution is required.
