Description
US Motors 8489 – Three-Phase Blower Motor Overview
The US Motors 8489 is a heavy-duty polyphase capacitor blower motor engineered for reliable performance in commercial and industrial HVAC air-handling applications. Built around a 56 NEMA frame with a resilient base mount, this motor installs easily into a wide range of blower assemblies and air-handling units. Its open dripproof (ODP) enclosure allows for adequate ventilation in protected indoor environments, while precision ball bearings deliver long service life with minimal maintenance.
Electrical Specifications
- Horsepower: 3/4 HP
- Voltage: 208-230/460 VAC
- Phase: Three Phase
- Amperage: 2.9-2.9/1.5 Amps
- Speed: 1725 RPM
- Motor Type: Polyphase Capacitor
Mechanical Specifications
- NEMA Frame Size: 56
- Enclosure Type: Open Dripproof (ODP)
- Bearing Type: Ball Bearing
- Mounting Style: Resilient Mount
Key Features & Benefits
- Dual-voltage design (208-230/460V) offers installation flexibility across a wide range of commercial electrical systems
- Three-phase operation delivers smooth, efficient power with reduced electrical noise and vibration
- Ball bearings provide long-lasting, low-maintenance performance under continuous-duty conditions
- Resilient mount design helps absorb vibration, reducing noise transmission to the structure
- Open dripproof enclosure protects internal components from dripping liquids in typical indoor environments
- 56 NEMA frame ensures broad cross-compatibility with standard blower housings and mounting brackets
- 1725 RPM synchronous speed is ideal for direct-drive and belt-drive blower applications
Typical Applications
- Commercial air-handling units (AHUs)
- Industrial blower assemblies
- HVAC fan coil units
- Ventilation and exhaust systems requiring three-phase power
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