Description
The US Motors 644 is a heavy-duty permanent split capacitor (PSC) condenser fan motor engineered for reliable, long-service-life performance in residential and light commercial air conditioning and refrigeration applications. Designed to withstand the demanding conditions of outdoor condenser units, this motor delivers consistent airflow and efficient operation season after season.
Electrical Specifications
- Voltage: 208–230V AC
- Phase: Single Phase
- Full Load Amps: 2.7 A
- Motor Type: Permanent Split Capacitor (PSC)
Mechanical Specifications
- Horsepower: 1/2 HP
- Speed: 1725 RPM
- NEMA Frame Size: 48Y
- Enclosure Type: Open (ODP)
- Bearing Type: Ball Bearing — for extended durability and reduced maintenance
- Mounting Style: Stud Mount
Key Features & Benefits
- Ball bearing construction provides superior durability and longer service life compared to sleeve bearing motors
- PSC motor design delivers efficient, quiet operation with low starting torque requirements
- Open enclosure promotes airflow for effective motor cooling in outdoor condenser environments
- 48Y NEMA frame ensures broad OEM and aftermarket compatibility for fast, straightforward replacement
- Stud mount design simplifies installation and secure positioning within the condenser unit
- Manufactured by US Motors (Nidec Motor Corporation), a trusted name in HVAC motor technology
Typical Applications
- Residential and light commercial air conditioner condensers
- Heat pump outdoor units
- Refrigeration condenser fan assemblies
- OEM replacement and aftermarket retrofit installations
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