Trane Condenser Fan Motor MOT21780

Trane MOT21780 Condenser Fan Motor | 3/4 - 1 HP, 460V, 1125 RPM

Restore high-capacity cooling to your HVAC system with the powerhouse performance of the genuine Trane MOT21780 Condenser Fan Motor. This heavy-duty OEM replacement is engineered for Trane and American Standard outdoor units that require significant torque and airflow. Uniquely rated for both 3/4 HP and 1 HP applications, the Trane MOT21780 provides the aggressive heat dissipation needed for large-tonnage condensing units and commercial rooftop systems.

Designed for global versatility, this Service First OEM motor supports a wide range of voltages, including 380V, 415V, and 460V, making it a critical component for specialized power configurations.

Technical Specifications:

• Model/Part Number: MOT21780 
• Horsepower: 3/4 HP / 1.0 HP (Dual Rated)
• Voltage: 380 / 415 / 460 VAC
• Current: 2.50 Amps
• Speed: 1125 RPM (60Hz) / 950 RPM (50Hz)
• Frequency: 50 / 60 Hz
• Phase: Single Phase (1 PH)
• Frame Size: 48 Frame
• Enclosure: Totally Enclosed Air-Over (TEAO)
• Rotation: CCW (Counter-Clockwise)

Key Features & Benefits:

• Industrial-Grade Versatility: The dual horsepower and multi-voltage ratings allow this single motor to replace a wide variety of specialized Trane fans, reducing inventory complexity for contractors.
• Aggressive Airflow Management: With a top speed of 1125 RPM, this motor is designed to move massive volumes of air, ensuring your system maintains factory-spec head pressure even in the most extreme ambient temperatures.
• All-Weather Reliability: The TEAO (Totally Enclosed Air-Over) housing protects internal windings from rain, dirt, and corrosive elements, significantly extending the motor's service life.
• OEM Precision Fit: As an original factory part, it mounts directly to your existing Trane brackets and aligns perfectly with the fan blade for balanced, vibration-free operation.

Compatibility & Applications

The MOT21780 is a heavy-duty motor typically found in large-tonnage residential systems and light commercial HVAC packages. It is the verified modern replacement for:

• Older Part Numbers: MOT18820 and various 460V 48-frame Trane motors.
• Equipment Type: 5-ton+ residential units, commercial heat pumps, and 460V three-phase-compatible equipment setups.

Why Buy From Shortys HVAC Supplies?

At Shortys HVAC, we focus on providing Original Equipment Manufacturer (OEM) parts so your repairs meet factory safety and performance standards. By choosing the Trane MOT217, you ensure your system retains its original reliability and high-capacity cooling power.