Rheem-Ruud 51-27211-03 Blower Motor

The Rheem-Ruud 51-27211-03 Blower Motor is a heavy-duty 1/3 HP OEM replacement motor designed for specific HVAC air handler and furnace applications. This Permanent Split Capacitor (PSC) motor operates at 208-230V and features a 2-speed configuration, allowing for precise airflow management within the system. Built with a NEMA 48 frame and Sleeve Bearings, this unit is engineered for quiet operation and long-term durability in Open Air Over (OAO) environments. The motor utilizes a CCW Lead End rotation and includes a 1/2" x 2" shaft, making it a direct fit for Rheem and Ruud specialized blower assemblies. With a rated speed of 825 RPM and a 3.2 Amp draw, this motor ensures efficient heat exchange and consistent static pressure performance. When replacing this unit, ensure the run capacitor is matched to the manufacturer's requirements to maintain optimal torque and prevent overheating of the windings.

• OEM Precision: Direct replacement for Rheem-Ruud 51-27211-03 ensures correct mounting via Shell-Band or Shell-Screw configurations.
• Operational Efficiency: The two-speed 825 RPM design allows for versatile performance across heating and cooling cycles.
• Standardized Specs: Features a standard 48 Frame Size and 1/2-inch shaft for compatibility with existing blower wheels.
• Thermal Protection: Designed with an Open Air Over enclosure to facilitate maximum heat dissipation during continuous duty cycles.

Is this motor compatible with 115V systems?
No, this is a 208-230V single-phase motor. Wiring it to a 115V source will cause the motor to fail or operate at insufficient torque.

Does this motor include the run capacitor?
Most OEM blower motors require a specific MFD-rated run capacitor (often 5 MFD or 7.5 MFD at 370V/440V) which is sold separately. Always check the motor nameplate for the correct capacitor rating.

Can I change the rotation of the 51-27211-03?
This specific part is designated as CCW (Counter-Clockwise) rotation from the lead end. Verify your blower wheel's rotation requirements before installation.

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.