Fasco UB591 4-Watt Unit Bearing Refrigeration Motor 230V CCW TEAO Shaded Pole

The Fasco UB591 is a 4-watt, single-phase shaded pole unit bearing motor engineered for refrigeration and HVAC/R applications. Rated at 230V AC, 1450 RPM, and drawing just 0.14 amps, this compact motor delivers reliable, continuous-duty performance in condensing units, evaporator coils, freezers, and food and beverage coolers.

Built with a cast iron frame and a Totally Enclosed Air-Over (TEAO) enclosure, the UB591 is designed to withstand demanding refrigeration environments. Impedance thermal protection and Class B insulation rated to a 40°C ambient temperature ensure long-term motor protection.

Key Features:

• Output: 4 watts (1/250 HP)
• Voltage: 230V AC, 60 Hz
• Speed: 1450 RPM, single speed
• Full Load Amps: 0.14 A
• Rotation: Counterclockwise, Opposite Shaft End (CCWLE)
• Enclosure: Totally Enclosed Air-Over (TEAO)
• Thermal Protection: Impedance
• Insulation Class: B, 40°C ambient
• Frame: Non-standard cast iron unit bearing
• Shaft: 1/4" x 20 threaded, 0.415" extension
• Mounting: 2 boss/mounting feet, 3 rear mounting holes
• Leads: 28" with 0.05" strip
• Frame Length: 2.87"
• Duty Cycle: Continuous
• Service Factor: 1.0
• UL Recognized, CSA Certified

The Fasco UB591 is a direct replacement unit bearing motor for refrigeration OEM and aftermarket service applications, offering a compact footprint and straightforward installation with its threaded shaft and standard mounting pattern.