Description
US Motors 1391 — 1/4 HP Permanent Split Capacitor Motor
The US Motors 1391 is a reliable, versatile Permanent Split Capacitor (PSC) motor engineered for demanding HVAC fan and blower applications. Rated at 1/4 HP with a 208/230V single-phase input and three selectable speed taps, this motor delivers flexible airflow control in a wide range of residential and light commercial systems.
Key Specifications
- Horsepower: 1/4 HP
- Voltage: 208/230 VAC
- Phase: Single Phase
- Speed: 1050 RPM, 3-Speed
- Amperage: 1.5 Amps
- NEMA Frame Size: 42Y
- Enclosure Type: Open Drip Proof (ODP)
- Bearing Type: Self-Aligning Ball Bearing
- Mounting: Ring or Stud Mount
- Shaft Diameter: 1/2″
- Rotation: Reversible
- Motor Type: Permanent Split Capacitor (PSC)
Features & Benefits
- 3-Speed Operation: Three selectable speed taps allow precise airflow matching to system requirements without additional controls.
- Reversible Rotation: Field-selectable rotation direction simplifies installation and broadens application compatibility.
- 42Y NEMA Frame: Industry-standard frame sizing ensures straightforward drop-in replacement in a wide range of OEM and aftermarket applications.
- Self-Aligning Ball Bearings: Designed for long service life and reduced maintenance, even under moderate shaft loads.
- Ring or Stud Mount: Dual mounting options provide installation flexibility for various equipment configurations.
- Open Drip Proof Enclosure: Protects internal components from dripping liquids while allowing adequate ventilation for continuous-duty operation.
- PSC Design: Permanent Split Capacitor technology delivers efficient, quiet operation and smooth starting — ideal for fan and blower loads.
- 1/2″ Shaft: Standard shaft diameter for compatibility with common fan blades, pulleys, and couplings.
Typical Applications
- Residential and commercial air handlers
- Evaporator and condenser fan assemblies
- Furnace blower replacements
- Fan coil units
- General HVAC fan and blower duty
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