Description
The US Motors 3404 is a heavy-duty Permanent Split Capacitor (PSC) motor engineered for reliable performance in demanding condenser fan and air-over applications. Built to the 48Y NEMA frame standard, this motor delivers consistent airflow management in residential and light commercial HVAC systems.
Electrical Specifications
- Voltage: 208–230V AC
- Phase: Single Phase
- Full Load Amps: 1.8 A
- Motor Type: Permanent Split Capacitor (PSC)
Mechanical Specifications
- Horsepower: 1/4 HP
- Speed: 1100 RPM
- NEMA Frame Size: 48Y
- Shaft Diameter: 1/2″
- Rotation: Clockwise (CW), Lead End
- Mount Type: Stud Mount
- Bearing Type: Self-Aligning Sleeve Bearing
Enclosure & Construction
- Enclosure Type: Totally Enclosed Air Over (TEAO)
- Designed for air-over cooling — ideal for condenser fan and blower applications where the motor is cooled by the airstream it moves
- Robust construction for long service life in outdoor and exposed installations
Key Features & Benefits
- PSC motor design provides smooth, quiet operation and high efficiency
- Self-aligning sleeve bearing reduces friction and extends motor life
- 48Y NEMA frame ensures broad OEM and replacement compatibility
- Stud mount configuration simplifies installation in condenser fan assemblies
- 1100 RPM low-speed operation minimizes noise and vibration
- CW lead-end rotation matches standard condenser fan blade requirements
Typical Applications
- Residential and light commercial air conditioning condenser fans
- HVAC air-over motor replacement applications
- OEM equipment requiring 48Y NEMA frame PSC motors







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