Marathon® Blue Max® 2000 AC Motor, 6-Pole Continuous-Duty, Inverter Ready Special Features, 100 HP, 230/460 VAC, 250/125 A, 60 Hz Frequency, 3 ph ph, 1190 RPM Speed, 1 Speed, Totally Enclosed Blower Cooled-Axial Enclosure, 444TC Frame, 3.38 in Dia x 8.25 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, 54.85 in L x 33.89 in W x 28.73 in H Dimensions