Baldor-Reliance Super-E® AC Motor, Type 1272M Continuous Duty, General Purpose AC Motors, Compressor Motors, Fan and Blower Motors Application, 50 hp, 208/230/460 V AC, 128/116/58 A, 60 Hz Frequency, 3 ph, 1775 rpm Speed, 1 Speed, TEFC Enclosure, 326T Frame, 2-1/8 in Shaft, Reversible Rotation, 1.15 Service Factor, Ball Bearing, 396 ft-lb Torque, F1/Foot Rigid Mounting, 40 to 76 deg C, Insulation Class: Class F, Iron, 30.28 in L x 23.05 in W x 19.47 in H Dimensions