Description
Baldor 15HP Air Over Motor — SKU 09K443Y599G3
The Baldor Motor 09K443Y599G3 is a heavy-duty 15 horsepower Air Over (AO) motor engineered for demanding commercial and industrial HVAC applications. Designed to operate in airstreams where the motor is cooled by the air it moves, this unit is ideal for direct-drive fan and blower installations where reliable, continuous-duty performance is essential.
Key Specifications
- Horsepower: 15 HP
- Motor Type: Air Over (AO)
- Speed: 3525 RPM
- Phase: 3-Phase
- Frequency: 60 Hz
- Brand: Baldor
- SKU: 09K443Y599G3
Air Over (AO) Design
Air Over motors are specifically built to be mounted within the airflow of a fan or blower assembly. Rather than relying on a self-contained cooling fan, the AO motor is cooled by the air passing over it during operation. This design reduces overall assembly length, lowers noise levels, and eliminates the need for an external cooling fan, making it a preferred choice for HVAC fan coil units, air handlers, and commercial ventilation equipment.
Three-Phase Performance
The 3-phase, 60Hz electrical configuration delivers smooth, efficient power suitable for commercial and light industrial environments. Three-phase motors offer superior torque characteristics, greater efficiency, and longer service life compared to single-phase alternatives, making this Baldor unit a smart investment for facilities with 3-phase power infrastructure.
Why Choose Baldor?
Baldor Electric, a member of the ABB Group, is one of North America’s most trusted names in industrial electric motors. Known for rigorous quality standards, robust construction, and wide parts availability, Baldor motors are a go-to choice for HVAC contractors, mechanical engineers, and facilities maintenance professionals.
Typical Applications
- Commercial air handlers and fan coil units
- Industrial blower assemblies
- HVAC direct-drive fan systems
- Ventilation and exhaust fan installations
- OEM replacement motor applications







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