Nidec-US Motors 1971 Blower Motor

The Nidec-US Motors 1971 Blower Motor is a high-performance 1/4 HP direct-drive solution engineered for demanding HVAC applications. Operating at 208-230V and 1.5 Amps, this 1075 RPM motor provides reliable airflow across 3 speeds to match specific system requirements. Built on a standard 48Y NEMA frame, it features an Open Air Over (OAO) enclosure to ensure optimal heat dissipation during continuous duty operation. This Permanent Split Capacitor (PSC) motor utilizes self-aligning sleeve bearings for quiet performance and includes automatic reset thermal overload protection to safeguard the internal windings. This unit is the professional drop-in replacement for 01-0173, D725, and 32803. The 1/2" diameter shaft is 5" in length and may need to be cut to required length depending on the blower wheel offset. With reversible rotation and multiple mounting configurations—including hub, stud, or band mount—the 1971 offers maximum job-site flexibility for technicians.

Key Benefits for HVAC Professionals

• Multi-Speed Versatility: The 3-speed configuration allows for precise static pressure balancing in furnaces and air handlers.
• Universal Mounting: Supports hub, stud, or flex-mounting to accommodate various OEM bracket designs.
• Broad Compatibility: Serves as a primary service replacement for common 1/4 HP 1075 RPM fractional horsepower motors.
• Field-Reversible: Easy-to-switch rotation simplifies inventory requirements and ensures the motor matches the blower wheel pitch.
• Durable Construction: Class B insulation and a 40°C max ambient rating ensure long-term stability in residential and light commercial environments.

Common Service Questions

What size capacitor is required for the 1971 motor?
This motor requires a 7.5 MFD / 370 VAC run capacitor (sold separately) for proper starting torque and efficiency.

Can this motor be installed in a vertical shaft-up position?
Yes, the self-aligning sleeve bearings and OAO design allow for versatile mounting positions in direct-drive blower assemblies.

What should I do if the shaft is too long for the housing?
As indicated in the technical notes, the 5-inch shaft is designed to be cut to the required length to ensure proper clearance within the blower cabinet.

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.