Regal Rexnord Marathon H175 2-Speed HVAC Motor 1/2-1/6 HP 115V

The Regal Rexnord Marathon H175 is a versatile two-speed single-phase electric motor designed specifically for HVAC and fan applications. This split-phase motor delivers dual horsepower ratings of 1/2 HP at high speed and 1/6 HP at low speed, providing flexibility for various heating, ventilation, and air conditioning systems.

Key Specifications:

• Dual speed operation: 1725 RPM (high) and 1140 RPM (low)
• Power output: 1/2 HP / 1/6 HP at respective speeds
• Voltage: 115V, 60Hz, single phase
• Current draw: 8.0 amps at high speed, 4.2 amps at low speed
• NEMA 56 frame with resilient base mount
• Open drip-proof (ODP) enclosure for ventilation
• Keyed shaft: 5/8" diameter x 1-7/8" extension
• Service factor: 1.25 for enhanced reliability

Design Features:

• Dynamically balanced rotor for reduced vibration and quiet operation
• Permanently lubricated, double-sealed ball bearings (6203 size) for extended motor life
• Class B insulation rated for 40°C ambient temperature
• Reversible rotation (clockwise/counterclockwise)
• Heavy gauge rolled steel frame construction
• Split-phase starting method for reliable startup
• UL Recognized and CSA certified

This general-purpose motor is ideal for blower and fan applications in residential and commercial HVAC systems. The two-speed capability allows for energy-efficient operation by matching motor speed to load requirements. Factory model number 5KH49PN3026 replaces US Motors model 5794C.