Description
The Regal Rexnord – Marathon H221 is a dependable general purpose motor engineered for a wide range of HVAC and light industrial applications. Built on the industry-standard 56 Frame, this motor delivers consistent low-speed performance at 1200 RPM, making it well suited for fans, blowers, pumps, and other motor-driven equipment where controlled, steady output is essential.
Key Specifications
- Horsepower: 1/2 HP
- Voltage: 115V
- Speed: 1200 RPM
- Frame: 56 (NEMA Standard)
- Brand: Marathon / Regal Rexnord
- SKU: H221
Features & Benefits
- NEMA 56 Frame for broad cross-compatibility with standard motor mounts and housings
- 1200 RPM low-speed operation reduces noise and vibration in fan and blower applications
- 115V single-phase input for straightforward installation in residential and light commercial settings
- Marathon’s proven motor construction delivers long service life and consistent performance
- Suitable for use in HVAC blower assemblies, condensate pumps, exhaust fans, and general equipment drives
Application
The H221 is ideal for HVAC technicians and contractors requiring a reliable, drop-in replacement or new-installation motor. Its standard 56 Frame footprint and single-phase 115V power requirement make it compatible with a broad range of residential and commercial HVAC equipment, including air handlers, blower assemblies, and ventilation systems.







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