Description
The Regal Rexnord Marathon H172 is a dependable multi-speed electric motor engineered for demanding HVAC and light commercial applications. With a dual-speed rating of 1725/1140 RPM and a horsepower range of 1/4 to 1/12 HP, this motor delivers the versatility needed for blower and fan duty applications where variable airflow is required. Operating on a standard 115V single-phase power supply, it fits seamlessly into a wide range of residential and light commercial HVAC systems.
Built on the industry-standard 48Z frame, the Marathon H172 offers straightforward installation and broad compatibility with OEM and replacement motor applications. Marathon motors are manufactured under the Regal Rexnord family — a trusted name in motor technology known for quality construction, consistent performance, and long service life.
Key Features
- Horsepower Range: 1/4 to 1/12 HP
- Frame: 48Z (industry-standard, direct-drive compatible)
- Voltage: 115V single-phase
- Speeds: Dual-speed — 1725 / 1140 RPM
- Brand: Marathon by Regal Rexnord
Applications
- HVAC blower and fan duty applications
- Residential and light commercial air handlers
- OEM motor replacement on 48Z frame equipment
- Multi-speed ventilation and circulation systems
Why Choose Marathon by Regal Rexnord?
Marathon motors are built to meet the rigorous demands of HVAC professionals. Regal Rexnord’s engineering heritage ensures each motor delivers consistent torque, efficient operation, and reliable longevity — minimizing downtime and callbacks in the field. The H172’s dual-speed capability makes it an ideal choice when system design calls for flexible airflow control without the complexity of variable frequency drives.
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