Description
The Regal Rexnord Marathon D143 is a heavy-duty blower motor engineered for dependable performance in residential and light commercial HVAC applications. Built on the trusted Marathon platform, this motor delivers consistent airflow and long service life in demanding environments.
Key Specifications
- Horsepower: 1/3 HP
- Voltage: 115 VAC
- Phase: Single Phase
- Speed: 1800 RPM
- Amperage: 6.1 Amps
- Frame Size: 48
- Enclosure: Open Drip Proof (ODP)
- Bearing Type: Ball Bearing
- SKU: D143
Design & Construction
The D143 features a 48 frame construction — an industry-standard frame size that simplifies direct replacement in a wide range of blower and air handler assemblies. The open drip proof (ODP) enclosure protects internal windings from dripping liquids and falling debris in typical indoor installations, while the ball bearing design reduces friction and heat buildup for extended motor life and quieter operation compared to sleeve bearing alternatives.
Performance & Reliability
Running at 1800 RPM on a 115VAC single-phase supply, the Marathon D143 delivers smooth, efficient airflow output suited for furnace blowers, air handlers, and fan coil units. At 6.1 amps, this motor operates within a practical current draw range that is compatible with standard residential electrical circuits and controls.
Applications
- Furnace blower assemblies
- Air handler units
- Fan coil units
- HVAC blower replacement applications
- Light commercial ventilation systems
Why Choose Marathon?
Regal Rexnord’s Marathon motor line is a recognized name in HVAC motor reliability. Marathon motors are designed to meet the demands of professional HVAC contractors and distributors, offering consistent quality, broad application coverage, and straightforward installation.
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