Description
US Motors 3738 Condenser Fan Motor Overview
The US Motors 3738 is a heavy-duty condenser fan motor engineered for reliable performance in demanding HVAC applications. Rated at 1/2 HP and designed for 460VAC single-phase operation, this motor delivers consistent airflow across a wide range of commercial and residential condensing units. With a full-load current draw of just 1.5 amps, it operates efficiently while minimizing electrical demand.
Key Specifications
- Horsepower: 1/2 HP
- Voltage: 460VAC, Single Phase
- Full Load Amps: 1.5 Amps
- Speed: 1075 RPM
- NEMA Frame Size: 48YZ
- Enclosure Type: Totally Enclosed Air Over (TEAO)
- Bearing Type: Ball Bearing
- Mount Type: Stud Mount
- Shaft Diameter: 1/2 inch
- Rotation: Reversible
- Motor Type: Permanent Split Capacitor (PSC)
Design & Construction
The 48YZ NEMA frame ensures broad cross-reference compatibility with OEM condenser fan motor applications. The Totally Enclosed Air Over (TEAO) enclosure protects internal windings from dust, debris, and moisture — ideal for outdoor condenser environments. Ball bearings provide long service life and reduced maintenance compared to sleeve-bearing alternatives, while the stud mount configuration simplifies installation and replacement.
Permanent Split Capacitor (PSC) Technology
As a Permanent Split Capacitor motor, the US Motors 3738 delivers smooth, quiet operation with improved efficiency over shaded-pole designs. The PSC design also supports reversible rotation, giving technicians flexibility during installation to match the required airflow direction without additional components.
Applications
- Residential and light commercial condenser units
- Replacement condenser fan motor for 48YZ frame applications
- Air-cooled condensing equipment operating on 460VAC single-phase power
- OEM and aftermarket HVAC system service and repair
Why Choose the US Motors 3738?
US Motors is a trusted name in HVAC motor manufacturing, known for quality construction and reliable performance. The 3738 model combines a rugged TEAO enclosure, long-life ball bearings, and a versatile PSC design to deliver a motor that technicians can depend on season after season. Its reversible rotation and standard 48YZ frame make it a go-to replacement for a wide range of condenser fan applications.
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