Rheem-Ruud 51-23023-31 Motor

The Rheem-Ruud 51-23023-31 Motor is a high-performance direct drive blower motor engineered for reliability in residential and light commercial HVAC systems. This 1/3 HP blower motor operates on 208-230V single phase power, delivering a consistent 1075 RPM across three distinct speeds for precise airflow management. Built on a NEMA 48 frame, it features an Open Air Over (OAO) enclosure to facilitate efficient heat dissipation during continuous operation. The Permanent Split Capacitor (PSC) design ensures high starting torque and energy efficiency, while the sleeve bearings provide quiet performance in standard-duty applications. With a reversible rotation capability and a universal shell-band/thru-bolt mount, this motor serves as a drop-in OEM replacement motor for numerous furnace and air handler configurations. The 1/2" x 5" shaft ensures compatibility with standard blower wheels, making it a staple for contractors maintaining Rheem HVAC parts inventory.

Key Benefits

• Multi-Speed Versatility: The 3-speed configuration allows for optimized static pressure handling and system balancing.
• Universal Mounting: Dual mounting options via thru-bolts or shell-band clamps ensure fitment in tight blower housings.
• Field Reversible: Simple lead reversal allows for clockwise or counter-clockwise rotation to match specific fan requirements.
• Robust Construction: The 48-frame OAO housing is designed to withstand the thermal demands of high-cycle HVAC environments.

Common Questions

What capacitor is required for the 51-23023-31?
This motor typically requires a 5 MFD / 370V run capacitor; always verify the rating on the motor nameplate before installation.

Can I use this motor to replace a 115V blower motor?
No, this is a 208-230V rated motor. Applying 115V will result in failure to start or significant torque loss, while applying this to a 460V circuit will cause immediate winding failure.

Will this motor work in a belt-drive application?
No, this is a direct-drive motor equipped with sleeve bearings intended for fan-on-shaft configurations only.

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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.