Baldor-Reliance Motor, 20HP,1765RPM,3PH,60HZ,256T,3944M,OPSB,F1Features:Heavy gauge steel frame constructionBall bearingsGrease reduced vibrationSuitable for mounting in any positionEHM models meet NEMA Premium® efficiency and inverter-ready3 year warrantyHM models meet EPAct efficienciesTypical Applications:Heating, ventilation and air conditioning fans and blowers Product Specifications BRANDBaldor-Reliance MANUFACTURERS PART NUMBEREHM2515T HORSEPOWER20 MOTOR RPM 60Hz1765 VOLTAGE230/460 PHASE3 FRAME256T ENCLOSURE TYPEOpen/Drip Proof HERTZ60 SPEEDS1 ROTATIONCCW/CW THERMAL PROTECTIONNone RATED RPM1765 MOUNTINGRigid FULL LOAD AMPS52.0/48.0/24.0 SHAFT DIAMETER1.625 BEARING TYPEBall DRIVE END BEARING SIZE6309 OPPOSITE END BEARING SIZE6208 INSULATION CLASSF SERVICE FACTOR1.15 AMBIENT TEMP C40 LENGTH LESS SHAFT INCHES27 DUTYContinuous APPROVALS OR CERTIFICATIONSCSA; UR OVERALL LENGTH23.19 is_motorYes LENGTH INCHES0.5 WIDTH INCHES19.5 HEIGHT INCHES19.5 WEIGHT LBS250 RPM RANGE1701-1800 SHAFT DIAMETER INCHES1.625 FL EFFICIENCY93 DESIGN CODEB OPPOSITE END BEARING6208 FL AMPS47/23.5 POLES4 FRAME SIZE256T DRIVE END FLANGEStandard ENCLOSUREOPSB