Description
The Regal Rexnord Marathon X303 is a dependable single-phase electric motor engineered for demanding HVAC applications. Designed to deliver consistent, efficient performance in blower and fan assemblies, the X303 is a trusted solution for residential and light commercial heating and cooling systems.
Key Specifications
- Horsepower: 1/4 HP
- Voltage: 115V
- Speed: 1075 RPM
- Phase: Single-Phase (1PH)
- Brand: Regal Rexnord – Marathon
- Model / SKU: X303
Product Highlights
- Built to Regal Rexnord’s rigorous quality standards for long service life
- 1075 RPM operating speed ideal for blower and fan motor applications
- 115V single-phase design suits standard residential and light commercial electrical systems
- Compact 1/4 HP output provides efficient airflow management without excess energy draw
- Engineered for straightforward installation and reliable day-to-day operation
Application
The Marathon X303 motor is well-suited for use in furnace blower assemblies, air handler fan sections, condenser fan units, and other HVAC equipment requiring a dependable 1/4HP, 115V, single-phase motor. Its 1075 RPM speed rating makes it a popular choice for multi-speed blower configurations in residential and light commercial systems.
About Regal Rexnord – Marathon
Marathon, a Regal Rexnord brand, is a leading manufacturer of electric motors for HVAC, commercial, and industrial applications. Known for their durability and engineering excellence, Marathon motors are a go-to choice for HVAC professionals across North America.







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