A.O. Smith 3.3" Shaded Pole Draft Inducer Blower - 3000 RPM 230 VoltsShaded PoleStainless steel shaft60 HZAutomatic OverloadHorsepower rating based upon maximum speed/loadMade in the USA Product Specifications BRANDA.O. Smith DIAMETER INCHES3.3 MAXIMUM AIRFLOW CFM75 RPM3000 SPEEDS1 VOLTAGE230 HERTZ (HZ)60 AMPS0.54 HORSEPOWER1/50 OVERLOADAutomatic ROTATION (VIEW FROM MOTOR SIDE)CWLE BEARING TYPEBall ENCLOSURE TYPETotally Enclosed MOTOR TYPEShaded Pole LISTING, RATING, CERTIFICATIONUL and CSA MANUFACTURER'S PART NUMBER775