3/4 hp 1725 RPM 56C w/base 115/230V Leeson Farm Duty # 116487 3/4 hp 1725 RPM, 10.8/5.4 amps, 115/230V 60hz. NEMA 56C Frame Keyed Shaft 5/8" Diameter x 1 7/8" Rigid Base, TEFC-Totally Enclosed Fan Cooled Reversible; Manual Overload Protection 1 Year Manufacture Warranty