Description
US Motors 3402 — Permanent Split Capacitor Motor Overview
The US Motors 3402 is a heavy-duty Permanent Split Capacitor (PSC) motor engineered for reliable performance in demanding HVAC and air-handling applications. Rated at 1/10 HP and designed for 208–230V AC single-phase power, this motor delivers consistent, low-speed airflow at 1,100 RPM — making it an ideal choice for condenser fans, evaporator fans, and other air-over applications where dependable, continuous-duty operation is required.
Key Specifications
- Horsepower: 1/10 HP
- Voltage: 208–230V AC, Single Phase
- Speed: 1,100 RPM
- Amperage: 0.8 Amps
- NEMA Frame Size: 48Y
- Enclosure Type: Totally Enclosed Air Over (TEAO)
- Bearing Type: Self-Aligning Sleeve Bearing
- Mount Type: Stud Mount
- Shaft Diameter: 1/2″
- Rotation: Clockwise (CW), Lead End
- Motor Type: Permanent Split Capacitor (PSC)
Design & Construction
The 48Y NEMA frame provides a standardized, drop-in fit for a wide range of OEM and replacement applications. The Totally Enclosed Air Over (TEAO) enclosure protects internal windings from dust, debris, and moisture, extending motor service life in harsh operating environments. The self-aligning sleeve bearing minimizes friction and wear, reducing maintenance requirements and supporting long-term reliability. The stud mount configuration simplifies installation and ensures a secure, vibration-resistant fit.
Performance & Efficiency
As a Permanent Split Capacitor motor, the US Motors 3402 offers smooth, quiet operation with improved efficiency compared to shaded-pole designs. The PSC design provides better starting torque and running efficiency, making it well-suited for fan and blower loads. The 1/2″ shaft diameter accommodates standard fan blade and blower wheel hubs for easy integration.
Applications
- Condenser fan motors in commercial and residential HVAC systems
- Evaporator fan and air-handling unit applications
- OEM replacement for 48Y frame PSC motors
- Refrigeration and air-over fan duty applications
Why Choose US Motors?
US Motors (a Nidec brand) is a trusted name in HVAC motor manufacturing, known for producing motors that meet rigorous quality standards and deliver long service life. The 3402 is built to perform in air-over environments where the motor is cooled by the airstream it drives, ensuring reliable operation across a wide range of HVAC installations.







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