Description
Overview
The Regal Rexnord Marathon GT1028A is a heavy-duty, general-purpose electric motor engineered for reliable performance in commercial and industrial HVAC applications. Delivering 25 horsepower at 1800 RPM, this motor is purpose-built to drive fans, blowers, pumps, compressors, and other demanding mechanical loads where consistent output and long service life are essential.
Totally Enclosed Fan-Cooled (TEFC) Design
The TEFC enclosure prevents the ingress of dust, moisture, and airborne contaminants, making the GT1028A an ideal choice for installations in harsh or dirty environments. An external cooling fan maintains safe operating temperatures without exposing internal windings to the surrounding atmosphere — extending motor life and reducing maintenance intervals.
Key Features
- 25 HP rated output for high-demand HVAC and industrial applications
- 1800 RPM synchronous speed — standard 4-pole, 60 Hz operation
- TEFC (Totally Enclosed Fan-Cooled) enclosure for environmental protection
- NEMA 284T frame for standardized mounting and easy replacement
- Regal Rexnord Marathon construction for proven industrial durability
- Suitable for fans, blowers, pumps, compressors, and conveyor drives
NEMA 284T Frame
The NEMA 284T frame designation ensures dimensional interchangeability with other NEMA-standard motors, simplifying retrofits and replacements. The T-frame design provides a robust mounting footprint appropriate for the motor’s 25 HP power class.
Applications
- Commercial HVAC air handling units and supply fans
- Industrial blowers and exhaust systems
- Pump drives in hydronic and process systems
- Compressor duty in refrigeration and air compression
- General-purpose mechanical drive applications
Why Choose Marathon by Regal Rexnord
Marathon Electric, a Regal Rexnord brand, has a long-standing reputation for manufacturing motors that meet the rigorous demands of HVAC and industrial environments. The GT1028A reflects that heritage — offering dependable efficiency, rugged construction, and NEMA-standard compatibility that makes installation and future servicing straightforward.
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