Description
US Motors 8431 Condenser Fan Motor Overview
The US Motors 8431 is a heavy-duty condenser fan motor engineered for reliable, long-lasting performance in commercial and residential air conditioning condensing units. Built to exacting NEMA standards, this motor delivers consistent airflow and efficient operation across a wide range of HVAC applications.
Key Features
- Horsepower: 1 HP
- Voltage: 208-230/460 VAC (single phase)
- Speed: 1075 RPM
- Full Load Amps: 5.8-5.4 / 2.7 Amps
- NEMA Frame Size: 56YZ
- Enclosure Type: Open Air Over (OAO)
- Bearing Type: Ball Bearing for reduced friction and extended service life
- Mount Type: Hub or Stud Mount for flexible installation
- Motor Type: Permanent Split Capacitor (PSC)
Design & Construction
The 56YZ NEMA frame ensures direct cross-compatibility with a wide range of OEM condenser fan applications. The Open Air Over enclosure promotes effective motor cooling in outdoor condensing unit environments. Ball bearings provide superior durability compared to sleeve-bearing alternatives, reducing maintenance intervals and extending motor life. The PSC design delivers smooth, efficient starting and running performance without the need for a start capacitor.
Mounting Versatility
The hub or stud mount configuration gives technicians the flexibility to install this motor in a variety of condenser fan assemblies, simplifying replacement and reducing downtime in the field.
Ideal Applications
- Residential and light commercial air conditioning condensing units
- Replacement condenser fan motor for 56YZ frame OEM applications
- Multi-voltage installations requiring 208-230V or 460V operation









