Marathon® Blue Chip® AC Motor, 4-Pole Continuous-Duty, Explosion Proof AC Motors, Severe Duty Motors, Inverter Ready Special Features, 100 HP, 230/460 VAC, 226/113 A, 60 Hz Frequency, 3 ph ph, 1780 RPM Speed, 1 Speed, EPFC Enclosure, 405T Frame, 2.88 in Dia x 7.5 in L Shaft, Reversible Rotation, 1.15 Service Factor, Ball Bearing, 370 ft-lb Torque, Rigid Base Mounting, 40 °C, Insulation Class: Class F, Cast Iron, 2:1 Constant Torque Speed, 10:1 Variable Torque Speed, 37.35 in L x 33.46 in W x 23.57 in H Dimensions