Allen-Bradley 509 A0D A2B is a full-voltage motor starter with a manual reset, designed for direct-on-line control of motors in industrial electrical panels. The model designation 509 A0D A2B identifies its specific starter configuration within Allen-Bradley’s line and its use in line-voltage motor-control applications. A key feature is the manual reset, enabling an operator to reset the starter after a fault or stop condition and safely re-energize the motor.
