Marathon Motors HVAC Motor, K544, 5K42JN3051, 1/2-1/6HP, 1725/1140RPM, 200-230V, 3 PH, 56 FRMarathon's line of Heating, Ventilation, and Air Conditioning Motors are designed with dynamically balanced rotors for reduced vibration and quiet operation. Product Specifications BRANDMarathon Motors MANUFACTURERS PART NUMBERX465 HORSEPOWER1/2 MOTOR RPM 60Hz1725/1140 VOLTAGE200-230 PHASE3 FRAME56 ENCLOSURE TYPEOpen/Drip Proof HERTZ60 SPEEDS1 ROTATIONCW RATED RPM1725/1140 MOUNTINGRB (Resilient Base) BEARING TYPEBall DRIVE END BEARING SIZE6203 OPPOSITE END BEARING SIZE6203 INSULATION CLASSB SERVICE FACTOR1.25 AMBIENT TEMP C40 DUTYContinuous is_motorYes WEIGHT LBS23 RPM RANGE1701-1800 OPPOSITE END BEARINGBall FL AMPS2.4-2.8/1.5-1.7 ENCLOSUREDP