WEG Evaporative Cooler Motor, .5018OS1AEC56, 0.5 HP, 1800 RPM, 115 Volts, 1 Phase, ODPWEG Evaporative Fan motors are specifically designed for agricultural fan applications. Mounted within the airstream for proper cooling, the totally enclosed design ensures long life in poultry house and barn exhaust fan applications. Product Specifications BRANDWEG MANUFACTURERS PART NUMBER.5018OS1AEC56 HORSEPOWER1/2 MOTOR RPM 60Hz1800 VOLTAGE115 PHASE1 FRAME56 ENCLOSURE TYPEOpen/Drip Proof RATED RPM1800 SERVICE FACTOR1.00 is_motorYes RPM RANGE1701-1800 FL EFFICIENCY58.0 HERTZ (HZ)60 FL AMPS8.20 ENCLOSUREODP