This Leeson reversible 3/4 HP motor with rigid base has capacitor start and 3450 RPM. U.S.A.HP 3/4 Rated RPM 3,450 Volts 115 / 208-230 Amps 4.8 at 230 Volts Motor Phase(s) Single Shank Diameter (in.) 5/8 Shank Length (in.) 1 7/8 Frame Type NEMA S56 Reversible Yes Capacitor Start Yes Rigid Base Yes.