509-DOD, Allen Bradley, Bulletin 509 Series motor starter, open type, full voltage non-reversing motor starter, 3P, 3PH, 90A, 600V, NEMA size 3, 30HP @ 230V, 50HP @ 380-415V, 50HP @ 460-575V, complete with 120V AC 60Hz coil, AC magnetic contactor, suitable for use with Allen Bradley Centerline, 2100, and Intellicenter Motor Control Centers.