Sterling 11J31R04090 Fan Motor

The Sterling 11J31R04090 Fan Motor is a precision-engineered 120V HVAC replacement motor designed for reliable performance in air-moving applications. Featuring an Open Drip-Proof (ODP) enclosure, this 1/30 HP shaded pole motor facilitates maximum airflow for effective cooling of the internal windings, ensuring stability during continuous duty cycles. Operating at a 1050 RPM synchronous speed with clockwise (CW) rotation, it provides the consistent torque needed for Sterling unit heaters and commercial ventilation systems. This single-phase 60Hz motor is built with a standard 3/8-inch shaft diameter for direct compatibility with OEM fan blades, maintaining factory-spec static pressure. For contractors, the Sterling 11J31R04090 provides a direct drop-in solution that restores optimal heat exchange efficiency without the need for mounting modifications or additional wiring hardware.

Key Benefits

• OEM Compatibility: Specifically designed as a direct Sterling replacement fan motor to ensure perfect fitment and electrical alignment.
• Thermal Management: The ODP enclosure allows high-volume ambient air circulation to prevent overheating in demanding environments.
• Industrial Build: Rated for 120 VAC operation, delivering a steady 1050 RPM for consistent air distribution across the heat exchanger.
• Simplified Installation: Standard 3/8" shaft and compact lead configuration streamline the swap-out process for field technicians.

Common Questions

What are the electrical requirements for the 11J31R04090?
This motor requires a 120V, 60Hz single-phase power supply. It is a shaded pole motor design, optimized for high-efficiency air movement in low-horsepower applications.

Is the rotation reversible on this motor?
No, the Sterling 11J31R04090 is fixed for clockwise (CW) rotation. Verify your existing fan blade pitch to ensure proper airflow direction before installation.

What does the ODP rating signify for this application?
Open Drip-Proof (ODP) indicates that the motor housing has ventilation openings that allow air to pass through for cooling, while protecting internal components from liquid or debris falling at an angle up to 15 degrees from vertical.

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.