Description
The Regal Rexnord Marathon B304 is a dependable single-phase blower motor engineered for demanding HVAC applications. Rated at 1/3 horsepower and designed for 115VAC single-phase power, this motor delivers consistent performance at 1800 RPM — making it an ideal replacement or OEM-spec motor for residential and light commercial air handling systems.
Built on the industry-standard 48Y frame, the B304 features an Open Drip Proof (ODP) enclosure that allows air circulation for cooling while protecting internal components from dripping liquids in typical installation environments. The ball bearing construction ensures smooth, low-friction operation and extended service life compared to sleeve-bearing alternatives. The resilient base with extended studs provides flexible mounting options, reducing vibration transmission to the equipment frame and simplifying installation.
Key Specifications
- Horsepower: 1/3 HP
- Voltage: 115VAC
- Phase: Single Phase
- Speed: 1800 RPM
- Amperage: 5.5 Amps
- Frame Size: 48Y
- Enclosure: Open Drip Proof (ODP)
- Bearing Type: Ball Bearing
- Mount: Resilient Base with Extended Studs
Features & Benefits
- Ball bearing design for long service life and reliable, quiet operation
- Open Drip Proof enclosure suitable for indoor air handling environments
- Resilient base with extended studs minimizes vibration and simplifies mounting
- Standard 48Y frame ensures broad cross-reference compatibility with OEM applications
- Single-phase, 115VAC operation for straightforward electrical integration
- Manufactured by Regal Rexnord’s Marathon brand — a trusted name in HVAC motor solutions
Applications
- Residential and light commercial air handlers
- Forced-air furnace blower assemblies
- Fan coil units
- HVAC blower replacement applications requiring 48Y frame motors
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