Description
The US Motors 1690 is a reliable, versatile permanent split capacitor (PSC) motor engineered for demanding HVAC applications. Delivering 1/4 horsepower at 115 volts AC on a single-phase circuit, this motor draws just 2.7 amps and operates at 1625 RPM — making it an efficient choice for fan and blower applications where consistent airflow performance is critical.
Motor Performance Specifications
- Horsepower: 1/4 HP
- Voltage: 115V AC
- Phase: Single Phase
- Speed: 1625 RPM, 3-Speed
- Amperage: 2.7 Amps
- Motor Type: Permanent Split Capacitor (PSC)
Construction & Design Features
- NEMA Frame Size: 48Y
- Enclosure: Open Air Over (OAO)
- Bearing Type: Self-Aligning Ball Bearing for reduced friction and extended service life
- Shaft Size: 1/2″ diameter
- Rotation: Reversible — adaptable to a wide range of installation orientations
- Mounting: Ring or Stud Mount for flexible installation options
Application & Benefits
The US Motors 1690 PSC motor is purpose-built for residential and light commercial HVAC systems, including furnace blowers, evaporator fans, and condenser fan assemblies. The three-speed configuration allows technicians to fine-tune airflow delivery to match system requirements, while the reversible rotation adds installation flexibility. The open air-over enclosure is designed for applications where the motor is cooled by the airstream it drives, ensuring reliable thermal management during continuous operation.
The self-aligning ball bearing design compensates for minor shaft misalignment, reducing wear and extending motor life. The 48Y NEMA frame ensures broad cross-compatibility with OEM and aftermarket equipment, and the ring or stud mount options simplify retrofits and replacements across a variety of equipment platforms.
Why Choose US Motors 1690?
- Three-speed operation for precise airflow control
- Reversible rotation for versatile installation
- Self-aligning ball bearing for durability and reduced maintenance
- Ring or stud mounting for easy installation and replacement
- Standard 48Y NEMA frame for broad equipment compatibility
- PSC design for energy-efficient, quiet operation
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