Marathon® AC Motor, 4-Pole Continuous Duty, Jet Pump (JM/JP) Motors Application, Inverter Ready Special Features, 15 hp, 575 VAC, 15.4 A, 60 Hz Frequency, 3 ph ph, 1760 rpm Speed, DP Enclosure, 254JM Frame, 1-1/4 in Dia x 5-1/4 in L Shaft, Reversible Rotation, 1.15 Service Factor, Ball Bearing, 56 ft-lb Torque, C-Face/Rigid Base Mounting, 40 deg C, Insulation Class: Class B, Rolled Steel, 2:1 Constant Torque Speed, 10:1 Variable Torque Speed, 24.17 in L x 13.99 in W x 12 in H Dimensions