The Carrier 5FE1056S has 1100RPM fan load of 575V aplication of 1/2HP reversible rotation ball bearing motor. A 1-speed motor using a single phase 60Hz and a PSC type of motor. The motor has automatic protection to prevent any damage to electrical components incase of a short circuit and a Class B isulation to avoid overheating. If you are not sure whether this replacement motor fits your unit, contact us with your model and serial number.