Rheem-Ruud 51-23055-11 Motor

The Rheem-Ruud 51-23055-11 Motor is a high-performance 1/5 HP condenser fan motor designed for demanding HVAC applications. Operating at 208-230Vac, this 1075 RPM single-speed unit serves as the direct replacement for 51-21854-01, 51-21854-02, and 51-21853-82. Built on a 48 Nema Frame Size, this Permanent Split Capacitor (PSC) motor features a totally enclosed enclosure to protect internal components from moisture and debris, making it ideal for outdoor condenser units.

This versatile 1.3 Amp motor offers reversible rotation (CCW/CW) and multiple mounting configurations, including shell-band, shell-screw, and thru-bolt, ensuring compatibility with Rheem, Ruud, and WeatherKing outdoor equipment. The 1/2" x 4 1/4" shaft provides a standard fit for most fan blades. For peak performance and to prevent premature failure, technicians should always pair this 51-23055-11 with a new 5 MFD/370V run capacitor and verify that the condenser fan blade is balanced and free of debris during installation.

• Universal Compatibility: Specifically engineered to replace numerous Rheem and Ruud part numbers, including 51-21854-01 and 51-21854-02.
• Reversible Rotation: Easily adjustable lead-end rotation simplifies installation across different cabinet designs.
• Multiple Mounting Options: Supports shell-screw, thru-bolt, and belly-band mounts for a secure fit in various 48-frame applications.
• Enhanced Durability: The Sleeve Bearing design and totally enclosed housing provide quiet, reliable operation in harsh outdoor environments.

Is the 51-23055-11 a direct replacement for my older 3-wire motor?
Yes. This motor is designed to replace both 3-wire and 4-wire configurations. Detailed wiring diagrams on the motor shell guide connections for different capacitor setups.

What capacitor is required for this condenser motor?
The Rheem-Ruud 51-23055-11 requires a 5 MFD 370-volt run capacitor. Replacing the capacitor during motor installation is recommended to ensure optimal starting torque and motor longevity.

Does this motor work for 825 RPM applications?
No. This is a 1075 RPM motor. Replacing an 825 RPM motor with this unit will lead to improper airflow and potential system damage. Always match the RPM rating listed on your existing motor nameplate.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.