Description
Overview
The Regal Rexnord Marathon X1903 is a dependable general purpose electric motor engineered for a wide range of HVAC and light commercial applications. Designed to deliver consistent, efficient performance, this motor is a trusted choice for contractors and technicians who demand reliability in the field.
Key Specifications
- Horsepower: 1/4 HP
- Voltage: 115V
- Phase: 1-Phase
- Speed: 1725 RPM
- Frame: 48Z
- SKU: X1903
- Brand: Marathon (Regal Rexnord)
Features & Benefits
- 48Z frame design for broad OEM and replacement compatibility
- 1725 RPM operating speed ideal for fan, blower, and pump applications
- Single-phase 115V power supply for easy integration into standard electrical systems
- Built to Marathon’s proven quality standards under the Regal Rexnord family of brands
- Suitable for use in HVAC equipment, air handlers, and other light commercial applications
Application
The Marathon X1903 is well-suited for replacement or OEM use in HVAC blower assemblies, fan systems, and pump drives where a 1/4 HP, 115V, single-phase motor with a 48Z frame is required. Its standard frame sizing ensures straightforward drop-in installation in a variety of equipment configurations.







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