Nidec-US Motors 3788 Condenser Motor

For high-demand replacements in residential and commercial condensing units, the Nidec-US Motors 3788 Condenser Motor delivers the rugged reliability that veteran techs expect. This 1/2 HP condenser fan motor is a Permanent Split Capacitor (PSC) workhorse, engineered to operate at 1075 RPM with a 208-230V single-phase power supply. Designed with a 48Y NEMA frame size and a standard 5.6-inch diameter, it integrates seamlessly into existing mounts using its versatile bracket mount configuration. The Open Air Over (OAO) enclosure ensures optimal heat dissipation during continuous duty, while the high-quality SAB bearings (Self-Aligning Bearings) provide smooth operation in vertical or horizontal orientations. With reversible rotation and a 3-speed tap design, this direct drive motor simplifies inventory by covering multiple service applications. When swapping this out, remember to pair it with a fresh 7.5 MFD capacitor to ensure peak torque and protection against premature winding failure.

Key Benefits:

• Multi-Application Versatility: Features a 3-speed design and reversible shaft rotation to replace a wide range of OEM condenser fan motors.
• Durable Thermal Management: The Open Air Over enclosure and Class B insulation support reliable performance in high-ambient condensing environments.
• Precision Mounting: Standard 48Y frame with bracket mounting compatibility ensures a drop-in fit for direct drive fan blades.
• Efficient Power Draw: Optimized 3.3 Amp full load rating reduces energy consumption while maintaining high static pressure airflow.

Common Questions:

What capacitor does the US Motors 3788 require?
This motor is designed to operate with a 7.5 MFD / 370V run capacitor. Always replace the capacitor when installing a new motor to prevent start-up issues.

Is the rotation reversible on this unit?
Yes, the 3788 features a reversible lead configuration, making it compatible with both CW and CCW rotation requirements found in different HVAC brands.

Can this motor be used in rainy environments?
As an Open Air Over (OAO) motor, it relies on the internal airflow for cooling. While designed for outdoor condensing units, the enclosure must be positioned correctly within the cabinet to shield it from direct water ingress while maintaining air passage.

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.