Description
Regal Rexnord Marathon K222 General Purpose Three Phase Motor
The Regal Rexnord Marathon K222 is a heavy-duty, general purpose three-phase induction motor engineered for reliable performance across a wide range of commercial and industrial HVAC applications. Built on a rugged 56C frame with an Open Drip Proof (ODP) enclosure, this motor delivers dependable power in environments where ventilation is adequate and drip protection is required.
Key Specifications
- Horsepower: 1-1/2 HP
- Voltage: 208-230/460V AC
- Phase: Three Phase
- Speed: 3450 RPM
- Full Load Amps: 5.0-4.8/2.4 A
- Frame Size: 56C
- Enclosure: Open Drip Proof (ODP)
- Bearing Type: Locked/Ball Bearing
- Brand: Regal Rexnord – Marathon
- SKU: K222
Design & Construction
The Marathon K222 features precision ball bearings for smooth, low-friction operation and extended service life. The 56C frame is a NEMA-standard C-face configuration, allowing for direct coupling to pumps, fans, blowers, and other driven equipment commonly found in HVAC systems. The Open Drip Proof enclosure protects internal windings from falling liquids and debris while allowing free air circulation for efficient cooling.
Electrical Versatility
Dual-voltage capability (208-230/460V AC) makes the K222 adaptable to a variety of three-phase power configurations found in commercial buildings and light industrial facilities. At 208-230V, the motor draws 5.0–4.8 amps; at 460V, current draw is reduced to 2.4 amps, offering flexibility in panel loading and wiring.
Typical Applications
- HVAC blower and fan assemblies
- Pump drives in hydronic and chilled water systems
- Commercial air handling units (AHUs)
- Compressor and conveyor drives
- General industrial machinery
Why Choose the Marathon K222?
Regal Rexnord’s Marathon line is trusted by HVAC professionals and mechanical contractors for its consistent quality, broad application compatibility, and long service life. The K222 is an ideal drop-in replacement or new-installation motor for three-phase HVAC and mechanical systems requiring 1-1/2 HP at high speed.
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