Trane MOT20940 – Genuine OEM Replacement Motor; Constant Torque, 1 HP, 208-230/50-60/1, CW, 48 Frame, Ball Bearing

The Trane MOT20940 is a high-performance, constant torque motor engineered specifically for Trane and American Standard heating, air conditioning, and air handler systems. As a vital component of your equipment's indoor blower assembly, this motor plays a critical role in system safety and performance by facilitating the smooth and reliable operation required to push treated air through your system. Maintaining a strong and properly functioning blower motor is essential for balanced temperature regulation, preventions against evaporator coil freeze-ups, and the overall efficiency of your system.

Operating on a 208-230V electrical configuration and supporting both 50 and 60 Hz frequencies, this powerful 1 HP motor produces variable speeds up to 1200 RPM while maintaining constant torque. Opting for a Genuine OEM Trane replacement part matters immensely because it guarantees exact electrical compatibility and a precision fit within your existing 48-frame housing. This precise tolerance ensures no unwanted vibrations, significantly reduces bearing wear, and completely eliminates the guesswork or modification demands often required when resorting to generic aftermarket motors.

Key Features and Function:

• Airflow Management: Features advanced constant torque technology for precise control, delivering highly optimized and consistent system performance across varying load conditions.

• Genuine OEM Reliability: Factory-engineered and tested by Trane to meet strict performance and durability standards, extending the overall lifespan of your unit.

• Direct-Fit Design: Designed with a standard 48-frame body to fit perfectly into belly-band or standard equipment mounts without aggressive modifications.

• Heavy-Duty Build: Built with a durable ball bearing construction to convert energy reliably and efficiently while maintaining quiet operation.

Product Details and Key Specifications:

• Part Number: MOT20940

• Manufacturer: Trane / American Standard (Genuine OEM)

• Part Type: Constant Torque Blower Motor

• Voltage: 208-230V

• HP / RPM: 1 HP @ 1200 RPM

• Phase / Hertz: Single-phase (1PH) / 50/60 Hz

• Rotation: Clockwise (CW) or Reversible depending on equipment configuration

• Shipping Weight: ~18.5 lbs

🛠️ HVAC Depot Pro Tip: Secure Your Mounts

When replacing a high-torque 1 HP motor like the MOT20940, always double-check the torque and alignment on your belly-band brackets or mounting bolts. Powerful constant torque starts can stress loose mounting points over time, leading to severe operational vibrations or a shifted blower wheel. Centering the blower wheel perfectly on the shaft before tightening the set screws will preserve the longevity of your high-grade ball bearings.

Cross-Reference & Compatibility:

The MOT20940 is a direct OEM replacement for the following part numbers:

• OEM Numbers: MOT20940

• Aftermarket/Fasco: Because this is a programmed constant torque ECM-style motor that communicates directly with specific system boards, using universal or aftermarket alternatives is highly discouraged.

Extensive Model Compatibility List:

• TSC Series: TSC060G3E0A2D0001000000000000F0000000000

• Verify Specific Model: Consult your specific indoor equipment cabinet sticker to verify compatibility with a 48-frame 1 HP motor.