Description
The Regal Rexnord Marathon H171 is a heavy-duty single-phase blower motor engineered for reliable, long-lasting performance in residential and light commercial HVAC air-handling applications. Featuring a dual-speed, dual-horsepower design, this motor delivers the flexibility needed to match a wide range of blower and fan system requirements without the need for multiple replacement parts on hand.
Key Specifications
- Horsepower: 1/4 – 1/12 HP (dual rating)
- Voltage: 115VAC, Single Phase
- Speeds / RPM: 1725 / 1140 RPM (dual speed)
- Full Load Amps: 4.2 / 2.7 Amps
- Frame Size: 48Z
- Enclosure: Open Drip Proof (ODP)
- Bearing Type: Ball Bearing
- Mounting: Resilient Base
- Rotation: Clockwise (CW), viewed from shaft end
Design & Construction Highlights
- 48Z frame size ensures broad cross-reference compatibility with OEM and replacement applications
- Ball bearing construction provides reduced friction, extended service life, and quieter operation compared to sleeve-bearing alternatives
- Open Drip Proof (ODP) enclosure protects internal windings from dripping liquids falling at angles up to 15° from vertical, suitable for indoor installations
- Resilient base mounting isolates vibration, reducing noise transmission to the surrounding structure
- Dual-speed capability (1725 / 1140 RPM) allows the motor to serve high- and low-speed blower functions within a single unit
- Clockwise shaft rotation (CW) for direct compatibility with standard blower wheel configurations
Typical Applications
- Residential and commercial furnace air handlers
- Fan coil units and evaporator blower assemblies
- Central air conditioning indoor blower sections
- General HVAC ventilation and circulation equipment
Why Choose Marathon by Regal Rexnord?
Marathon Electric, a Regal Rexnord brand, has been a trusted name in electric motor manufacturing for decades. The H171 is built to meet the demanding duty cycles of HVAC systems, offering consistent performance, easy installation, and dependable longevity — making it an ideal choice for HVAC technicians and contractors seeking a quality replacement or upgrade motor.
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