Fasco D1103 Motor

The Fasco D1103 is a high-performance shaded pole motor engineered for reliability in demanding commercial and residential air-moving applications. This 1/20 HP blower motor operates at a rated voltage of 208-240V and maintains a consistent 1500 RPM, providing the static pressure capability required for efficient ventilation. Designed as a 3.3-inch diameter motor, it features sleeve bearings for quiet operation and thermal overload protection to ensure long-term durability under continuous load. The unit is a direct replacement for Fasco 575, ensuring a drop-in mechanical fit for contractors servicing older units. With a CCW shaft end rotation and standard 4M 370V capacitor requirements (where applicable), this motor is optimized for low-amp draw and thermal stability. The open-vented design facilitates maximum heat dissipation, making it a staple for technicians requiring OEM-quality HVAC motor replacements that meet primary electrical specifications for direct-drive blowers and fans.

Key Performance Benefits

• Drop-In Compatibility: Specifically designed as the primary Fasco 575 replacement motor for seamless retrofitting.
• Robust Electrical Design: Rated for 240V 1500 RPM operation with a high-torque shaded pole configuration.
• Quiet Operation: Precision-engineered sleeve bearings reduce vibration and acoustic output in air-handler applications.
• Thermal Protection: Integrated internal overload protection prevents winding failure during restricted airflow conditions.
• Standard Frame Size: The 3.3-inch frame fits standard mounting brackets found in most small-diameter fan assemblies.

Common Installation Questions

Is the Fasco D1103 a reversible motor?
No, this motor is fixed at CCW rotation (counter-clockwise) when viewing from the shaft end. Verify your fan blade pitch before installation.

What are the mounting specs for this 3.3-inch motor?
The D1103 typically utilizes extended thru-bolts or a belly band mount, consistent with standard Fasco D1100 series specifications.

Can I use this motor to replace a 115V unit?
No, this is a dedicated 208-240V HVAC motor. Applying 115V will result in insufficient torque and potential motor stall.

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.