Baldor-Reliance Motor, 20HP,1765RPM,3PH,60HZ,256T,3944M,OPSB,F1Features:1.15 Service FactorPositively locked drive end bearing on 254T and largerBall bearingsDynamically balanced rotorsTypical Applications:Pumps, fans, compressors, blowers, machine tools, conveyors and many other applications requiring 200 volt power. Product Specifications HORSEPOWER20 ENCLOSUREOPSB FRAME256T MOUNTINGRigid NAMEPLATE RPM1765 PHASE3 MOTOR RPM 60Hz1765 VOLTAGE200 HERTZ60 SERVICE FACTOR1.15 AMBIENT TEMP C40 WEIGHT237 RPM RANGE1701-1800 DESIGN CODEB BEARING-DRIVE-END6309 BEARING-OPP-DRIVE-END6208 FL EFFICIENCY93 INSULATION CLASSF FL AMPS54.3 KVA-CODEH 208V AMPS54.5 BRANDBaldor-Reliance DOE-CODE-- MANUFACTURER PART #EM2515T-8 is_motorYes ENCLOSURE TYPEOpen/Drip Proof POWER-FACTOR85 DRIVE END FLANGEStandard C-DIMENSION INCHES21.69 SERIAL-NUMBER-- POLES4 SPEC. NUMBER39K057W949