Marathon® Blue Max® 2000 AC Motor, 4-Pole Continuous-Duty, Inverter Ready Special Features, 100 HP, 230/460 VAC, 230/115 A, 60 Hz Frequency, 3 ph ph, 1785 RPM Speed, 1 Speed, Totally Enclosed Blower Cooled-Axial Enclosure, 405TC Frame, 2.88 in Dia x 7 in L Shaft, Reversible Rotation, 1 Service Factor, Ball Bearing, Rigid Base Mounting, 40 °C, Insulation Class: Class H, Cast Iron, 2000:1 Constant Torque Speed, 49.72 in L x 29.83 in W x 24.17 in H Dimensions