A. O. Smith C663 Industrial Single-Phase Electric Motor

Century C663 is a 3/4 HP, 1100 RPM, single‑phase outdoor condenser fan motor designed for HVAC condenser assemblies. It uses a 56Z frame with a DPG enclosure and is built for 208–230/460 V, 60 Hz operation in a PSC design with TEAO construction, making it suitable for outdoor service. The motor employs ball bearings for durability and reliability in harsh outdoor environments and is commonly used as a replacement component in outdoor condenser fans for air‑conditioning units. Full‑load current is typically around 4.8 A at 208–230 V and about 2.1 A at 460 V, with rotation that is generally counterclockwise depending on unit wiring. Originating with A. O. Smith and now marketed under Century, this C663 model is a widely used, OEM‑replacement style motor in HVAC applications requiring a single‑phase, 60 Hz solution.