Rheem-Ruud 51-21853-11 Motor
The Rheem-Ruud 51-21853-11 is a direct OEM replacement condenser fan motor designed for peak performance in residential and commercial condensing units. This 1/3 HP motor operates at 208-230V and a nominal 1075 RPM, providing the specific torque and airflow requirements necessary for Rheem and Ruud equipment. As a Permanent Split Capacitor (PSC) motor, it utilizes a 48 NEMA frame and features a totally enclosed (TEAO) housing to protect internal components from environmental debris and moisture common in outdoor HVAC applications. The CCW rotation (lead end) and 1/2" x 2-1/16" shaft dimensions ensure precise compatibility with factory blade configurations, while the sleeve bearing design provides quiet operation during high-demand cycles.
Key Technical Benefits
- Precision OEM Match: Eliminates the mounting and wiring headaches associated with universal motors by utilizing a shell-screw mount and factory-spec 1.5 Amp draw.
- Extended Component Life: Incorporates internal thermal protection to prevent winding failure during high ambient temperature conditions.
- Optimized Efficiency: The single-phase, 60 Hz 1-speed configuration is engineered to maintain static pressure balance across the coil for better heat transfer.
- Rugged Construction: Built with a totally enclosed enclosure to withstand the rigors of year-round outdoor exposure.
Common Questions
Is the 51-21853-11 a suitable replacement for older Rheem motors with different frame sizes?
This motor uses a standard 48 NEMA frame. You must verify your existing motor's mounting pattern and shaft diameter (1/2") to ensure a proper fit without modification.
Does this motor include the run capacitor?
This is the motor only. For a professional installation, always match the MFD and Voltage ratings on the motor nameplate with a new capacitor to ensure proper starting torque and amp draw.
Can I use this motor if my unit's original motor was 1/4 HP?
While the voltage and RPM may match, increasing horsepower can lead to different amperage requirements. Always verify that your control board or contactor can handle the 1.5 Amp load of this 1/3 HP unit.
This item is not eligible for free shipping.
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.
Original: $380.43
-65%$380.43
$133.15Rheem-Ruud 51-21853-11 Motor
The Rheem-Ruud 51-21853-11 is a direct OEM replacement condenser fan motor designed for peak performance in residential and commercial condensing units. This 1/3 HP motor operates at 208-230V and a nominal 1075 RPM, providing the specific torque and airflow requirements necessary for Rheem and Ruud equipment. As a Permanent Split Capacitor (PSC) motor, it utilizes a 48 NEMA frame and features a totally enclosed (TEAO) housing to protect internal components from environmental debris and moisture common in outdoor HVAC applications. The CCW rotation (lead end) and 1/2" x 2-1/16" shaft dimensions ensure precise compatibility with factory blade configurations, while the sleeve bearing design provides quiet operation during high-demand cycles.
Key Technical Benefits
- Precision OEM Match: Eliminates the mounting and wiring headaches associated with universal motors by utilizing a shell-screw mount and factory-spec 1.5 Amp draw.
- Extended Component Life: Incorporates internal thermal protection to prevent winding failure during high ambient temperature conditions.
- Optimized Efficiency: The single-phase, 60 Hz 1-speed configuration is engineered to maintain static pressure balance across the coil for better heat transfer.
- Rugged Construction: Built with a totally enclosed enclosure to withstand the rigors of year-round outdoor exposure.
Common Questions
Is the 51-21853-11 a suitable replacement for older Rheem motors with different frame sizes?
This motor uses a standard 48 NEMA frame. You must verify your existing motor's mounting pattern and shaft diameter (1/2") to ensure a proper fit without modification.
Does this motor include the run capacitor?
This is the motor only. For a professional installation, always match the MFD and Voltage ratings on the motor nameplate with a new capacitor to ensure proper starting torque and amp draw.
Can I use this motor if my unit's original motor was 1/4 HP?
While the voltage and RPM may match, increasing horsepower can lead to different amperage requirements. Always verify that your control board or contactor can handle the 1.5 Amp load of this 1/3 HP unit.
This item is not eligible for free shipping.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Rheem-Ruud 51-21853-11 is a direct OEM replacement condenser fan motor designed for peak performance in residential and commercial condensing units. This 1/3 HP motor operates at 208-230V and a nominal 1075 RPM, providing the specific torque and airflow requirements necessary for Rheem and Ruud equipment. As a Permanent Split Capacitor (PSC) motor, it utilizes a 48 NEMA frame and features a totally enclosed (TEAO) housing to protect internal components from environmental debris and moisture common in outdoor HVAC applications. The CCW rotation (lead end) and 1/2" x 2-1/16" shaft dimensions ensure precise compatibility with factory blade configurations, while the sleeve bearing design provides quiet operation during high-demand cycles.
Key Technical Benefits
- Precision OEM Match: Eliminates the mounting and wiring headaches associated with universal motors by utilizing a shell-screw mount and factory-spec 1.5 Amp draw.
- Extended Component Life: Incorporates internal thermal protection to prevent winding failure during high ambient temperature conditions.
- Optimized Efficiency: The single-phase, 60 Hz 1-speed configuration is engineered to maintain static pressure balance across the coil for better heat transfer.
- Rugged Construction: Built with a totally enclosed enclosure to withstand the rigors of year-round outdoor exposure.
Common Questions
Is the 51-21853-11 a suitable replacement for older Rheem motors with different frame sizes?
This motor uses a standard 48 NEMA frame. You must verify your existing motor's mounting pattern and shaft diameter (1/2") to ensure a proper fit without modification.
Does this motor include the run capacitor?
This is the motor only. For a professional installation, always match the MFD and Voltage ratings on the motor nameplate with a new capacitor to ensure proper starting torque and amp draw.
Can I use this motor if my unit's original motor was 1/4 HP?
While the voltage and RPM may match, increasing horsepower can lead to different amperage requirements. Always verify that your control board or contactor can handle the 1.5 Amp load of this 1/3 HP unit.
This item is not eligible for free shipping.
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.
