Allen-Bradley 505-B0D-23 Size 1 AC Magnetic Starter

Allen-Bradley 505-BOD-23 (often listed as 505-B0D-23) is a NEMA Size 1 AC magnetic reversing starter from Bulletin 505. This open-type unit combines two contactor elements to enable forward and reverse operation of a three-phase motor and is sold without an overload relay. The coil is 115–120 VAC at 60 Hz, and the starter is intended for open installations (no enclosure). In typical configurations, the unit handles a full-load current of about 27 A at 230 VAC and provides 7.5 HP at 230 VAC, with 10 HP available at higher voltages of 380–415 VAC and 460–575 VAC, reflecting the standard Bulletin 505 horsepower ratings. As a size-1 reversing starter, it is compact for motor control on small machinery and is used in equipment where reversing motion is needed, such as conveyors, hoists, and machine tools. The 505 family is designed for simple, hard-wired reversal control in low- to mid-power applications and integrates with other Bulletin 505 motor control components as part of a broader system.