Baldor-Reliance Motor, 50HP,1775RPM,3PH,60HZ,326T,4256M,OPSB,F1Features:Ball bearingsSuitable for mounting any positionHeavy gauge steel and cast iron framesTypical Applications:Pumps, compressors, fans, conveyors, machine tools and other applications where 575 volt three phase power is available. Product Specifications HORSEPOWER50 ENCLOSUREOPSB FRAME326T MOUNTINGRigid NAMEPLATE RPM1775 PHASE3 MOTOR RPM 60Hz1775 VOLTAGE575 HERTZ60 SERVICE FACTOR1.15 AMBIENT TEMP C40 WEIGHT445 RPM RANGE1701-1800 DESIGN CODEB BEARING-DRIVE-END6312 BEARING-OPP-DRIVE-END6311 FL EFFICIENCY94.5 INSULATION CLASSF FL AMPS46 KVA-CODEG 208V AMPS-- BRANDBaldor-Reliance MANUFACTURER PART #EM2543T-5 DOE-CODE010A is_motorYes CUSTOMER-PART-NUMBER-- GREASEPOLYREX EM ENCLOSURE TYPEOpen/Drip Proof SPACE-HEATER-AMPS-- SPACE-HEATER-VOLTS-- MAX. SPACE HEATER TEMP.-- POWER-FACTOR87 DRIVE END FLANGEStandard C-DIMENSION INCHES27.69 SERIAL-NUMBER-- POLES4 SPEC. NUMBER42F056W476