Description
Overview
The Regal Rexnord Marathon B337 is a dependable single-phase general purpose motor engineered for a wide range of HVAC and light industrial applications. Rated at 1 horsepower and designed to operate on 277-volt, single-phase power, this motor delivers consistent performance at 1725 RPM — ideal for fan, blower, and pump-driven systems where steady torque and reliable operation are essential.
Key Features
- 1 HP output for robust, dependable performance
- 277V single-phase power supply compatibility
- 1725 RPM operating speed for smooth, efficient operation
- Built to Regal Rexnord Marathon quality standards for long service life
- Suitable for HVAC fan, blower, and pump applications
- General purpose design for versatile installation flexibility
Specifications
- Brand: Regal Rexnord – Marathon
- Model / SKU: B337
- Horsepower: 1 HP
- Voltage: 277V
- Phase: 1-Phase
- Speed: 1725 RPM
Applications
The Marathon B337 is well-suited for commercial and light industrial HVAC systems, including air handling units, blower assemblies, exhaust fans, and hydronic pump systems. Its 277V single-phase rating makes it a practical choice for commercial lighting-circuit power infrastructures commonly found in commercial buildings.







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