Nidec-US Motors 6128 Motor

The Nidec-US Motors 6128 Motor is a professional-grade refrigeration condenser fan motor designed for demanding commercial HVACR applications. Operating on 208-230Vac single-phase power, this 1/6 HP unit delivers a consistent 1550 RPM at 0.9 Amps. Built with a 48YZ NEMA frame and an open air over (OAO) enclosure, the 6128 relies on the system's airflow to maintain optimal operating temperatures during continuous duty cycles. This permanent split capacitor motor is an ideal OEM direct replacement for various brands, including many Copeland refrigeration units, providing the reliability field technicians expect from the US Motors line.

Installation is streamlined with a standard cradle mount and a 1/2-inch diameter shaft. The motor features self-aligning sleeve bearings for long-term orbital stability and efficient vibration dampening. To ensure high-level system protection, it includes an automatic reset thermal overload protector, preventing field failures during high-ambient operation. Whether you are servicing a reach-in cooler or a larger commercial condensing unit, the 6128 offers a multi-fit design that is a staple for service vans.

Key Benefits

• Efficient Performance: Optimized PSC design ensures Lower amp draw (0.9A) and steady 1550 RPM performance.
• Flexible Mounting: Features a 48YZ frame with a 1/2" shaft and cradle mount for versatile integration into existing condenser shrouds.
• High-Ambient Reliability: Open Air Over (OAO) design and Class B insulation support stable operation in high-heat commercial environments.
• Integrated Safety: Features an automatic reset thermal overload to protect windings from excessive heat or power fluctuations.
• Easy Installation: Pre-drilled for various mounting types and includes long leads for easier routing through electrical conduits.

Common Questions

What is the rotation direction for the US Motors 6128?
This motor is factory-set for CW (clockwise) lead end rotation. Always verify the airflow pattern of the fan blade before completing the installation to ensure proper heat rejection.

Can I use a different capacitor than what is specified?
No. PSC motors like the 6128 require a precise microfarad rating (typically 5MFD/370VAC) to maintain the magnetic field. Using an incorrect capacitor can cause increased amp draw and premature motor failure.

Does this motor require a specific mounting orientation?
While the 6128 is commonly used in horizontal cradle mounts, it is designed as a condenser fan motor and should be positioned where the continuous airflow of the fan passes over the motor frame to prevent overheating.

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.