Marathon Motors Fan Blower Motor, B608, 056C17D2113, 1/2HP, 1800RPM, 277V, 1PH, 56 FR, DPMarathon'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 NUMBERK279 HORSEPOWER1/2 MOTOR RPM 60Hz1800 VOLTAGE277 PHASE1 FRAME56 ENCLOSURE TYPEOpen/Drip Proof HERTZ60 SPEEDS1 ROTATIONCCW RATED RPM1800 MOUNTINGResilient Base - Extended Studs 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 AMPS3.55 ASSEMBLYF1 Only ENCLOSUREDP