Description
The Regal Rexnord Marathon O011 is a reliable, single-phase general-purpose motor engineered for demanding HVAC and light industrial applications. Built around a rugged 48NZ frame with an N-Flange, footless mounting configuration, this motor installs easily on pumps, fans, blowers, and other direct-drive equipment without the need for a base or foot mounting.
Key Electrical Specifications
- Horsepower: 1/2 HP
- Voltage: 115/208-230 Vac (dual-voltage capable)
- Phase: Single Phase
- Speed: 3600 RPM
- Amperage: 7.4A (115V) / 3.5–3.7A (208-230V)
Motor Construction & Design Features
- Frame Size: 48NZ
- Enclosure: Open Drip Proof (ODP) — allows air circulation while protecting against dripping liquids
- Bearing Type: Ball Bearing — provides smooth, low-friction operation and extended service life
- Mounting: N-Flange, Footless — ideal for direct-coupled pump and fan applications
Performance & Reliability
The Open Drip Proof enclosure promotes efficient motor cooling by allowing airflow through the motor windings, making it well-suited for indoor installations where the motor is protected from direct exposure to the elements. Ball bearings ensure consistent performance under continuous-duty operation and reduce maintenance intervals compared to sleeve-bearing alternatives.
Typical Applications
- Circulator and centrifugal pumps
- HVAC blowers and fans
- Light industrial direct-drive equipment
- Commercial air-handling units
Why Choose the Marathon O011?
Backed by Regal Rexnord’s legacy of motor engineering excellence, the Marathon O011 combines dual-voltage flexibility, a compact 48NZ frame, and ball-bearing durability into a single package. The N-Flange footless design simplifies installation on flange-mounted equipment, reducing labor time and ensuring a secure, aligned connection every time.
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