Marathon Motors HVAC Motor, K1409, 5K37MN252X, 3/4HP, 3450RPM, 208-230/460V, 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 NUMBERX050 HORSEPOWER3/4 MOTOR RPM 60Hz3450 VOLTAGE208-230/460 PHASE3 FRAME56 ENCLOSURE TYPEOpen/Drip Proof HERTZ60 SPEEDS1 ROTATIONCCW/CW THERMAL PROTECTIONAutomatic RATED RPM3450 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 LBS18.5 RPM RANGE3001-3600 OPPOSITE END BEARINGBall FL AMPS2.6-2.6/1.3 ENCLOSUREDP