Description
The Regal Rexnord – Marathon 4389 is a dependable, dual-speed blower motor engineered for demanding HVAC applications where reliability and flexibility are essential. Rated at 1/6 HP and 1/18 HP across two operating speeds, this single-phase motor delivers consistent airflow performance in residential and light commercial blower assemblies.
Electrical Specifications
- Voltage: 115VAC, Single Phase
- Speed: 1725 RPM (high) / 1140 RPM (low)
- Amperage: 3.4 Amps (high speed) / 1.9 Amps (low speed)
- Horsepower: 1/6 HP (high speed) / 1/18 HP (low speed)
Mechanical Specifications
- Frame Size: 48
- Enclosure: Open Drip Proof (ODP)
- Bearing Type: Ball Bearing for extended service life and reduced maintenance
- Mounting: Resilient Base for vibration dampening and quieter operation
- Rotation: Reversible — adaptable to a wide range of installation configurations
Key Features & Benefits
- Dual-speed operation provides versatile airflow control for multi-speed blower applications
- Ball bearing construction ensures long-lasting, low-friction performance
- Resilient base mounting minimizes vibration transmission to the equipment cabinet
- Reversible rotation simplifies installation and broadens application compatibility
- Open Drip Proof enclosure protects internal components in standard indoor environments
- 48 frame sizing conforms to industry-standard dimensions for straightforward replacement
Typical Applications
- Residential and light commercial forced-air blower assemblies
- Multi-speed air handler and furnace blower replacements
- OEM and aftermarket HVAC equipment servicing
Backed by the Regal Rexnord – Marathon legacy of quality motor manufacturing, the 4389 is a trusted choice for HVAC technicians and contractors seeking a reliable, drop-in blower motor solution.
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