Regal Rexnord - Marathon Single Phase Motors

Regal Rexnord – Marathon Single Phase Motors

When a motor nameplate carries the Regal Rexnord – Marathon name, it comes with more than a century of engineering pedigree behind it. Single phase motors are the workhorses of residential and light-commercial power — converting standard household or light-industrial AC current into reliable mechanical rotation for equipment ranging from HVAC blowers and pool pumps to compressors and pressure washers. Marathon has been producing single phase motors since its founding in Wausau, Wisconsin in 1913, and the brand's very first product was, fittingly, a single phase washing machine motor.

A Proven Design Philosophy

Marathon's single phase lineup is built around the capacitor-start induction-run design philosophy. Capacitor-start motors deliver high starting torque and reliable operation under load — a meaningful advantage over shaded-pole alternatives that can struggle to get equipment moving. Across the catalog, Marathon single phase motors feature heavy-gauge rolled steel frames and double-shielded ball bearings for durability in demanding cycles, with many models carrying continuous-duty ratings so they can run at full rated power without shortening motor life.

Enclosure options span the range of real-world environments. Totally Enclosed Fan Cooled (TEFC) motors are suited for dusty, damp, or industrial surroundings, with an external fan keeping operating temperatures in check without exposing internal windings to contaminants. Open Drip-Proof (ODP) designs serve drier indoor installations where ventilation is ample. For hazardous locations where explosive gases or vapors may be present, Marathon also offers explosion-proof single phase models that are UL Listed and CSA Certified.

Key Features Across the Marathon Single Phase Lineup

• Capacitor-start and capacitor-start/capacitor-run designs for high starting torque and reduced running amperage
• TEFC, ODP, TENV, and explosion-proof enclosures to match installation environments
• NEMA-frame standardization (48, 56, 145T, 184T and beyond) for straightforward drop-in replacement
• Dual-voltage wiring (115/230V) on many models, offering installation flexibility without swapping hardware
• Ball bearings and heavy-gauge steel construction for long service life
• UL and CSA certifications across the lineup for code-compliant installations
• Automatic or manual thermal overload protection on select models

Where Marathon Single Phase Motors Get to Work

The breadth of Marathon's single phase catalog reflects the breadth of single phase applications in the real world. HVAC technicians reach for Marathon motors when replacing blower, condenser fan, and evaporator fan motors — the brand produces hundreds of variants tuned to those duty cycles. Pump applications are equally well covered, from pool and spa circulation to pressure washer drives and water treatment systems. General-purpose models with standard NEMA frames serve woodworking equipment, conveyors, compressors, and agricultural machinery. Horsepower ratings span from fractional sizes up through 5 HP and beyond, with common speeds of 1800 and 3600 RPM to match driven equipment requirements.

With Regal Rexnord's global manufacturing infrastructure and Marathon's deep roots in precision motor production, these single phase motors represent a dependable choice whether you're doing a one-for-one field replacement or selecting a motor for a new installation. Browse the full selection of over 80 Regal Rexnord – Marathon single phase motors to find the right frame, enclosure, and horsepower for your application.