Nidec-US Motors 3738 Motor

The Nidec-US Motors 3738 is a heavy-duty, 1/2 HP condenser fan motor designed for demanding commercial and residential HVAC applications requiring a 460-volt power supply. Engineered with a 48YZ NEMA frame size and a 5.6-inch diameter, this single-phase PSC motor operates at a reliable 1075 RPM with a low 1.5-amp draw, maximizing efficiency in high-ambient environments up to 60°C. Featuring a TEAO (Totally Enclosed Air Over) enclosure and high-grade ball bearings, this unit provides superior protection against moisture and debris, making it a rugged alternative to standard motors. The 3738 serves as a direct upgrade for the Century FEH001, offering an extended 1/2" x 6" shaft and a versatile stud mount configuration. With reversible rotation and automatic thermal overload protection, this motor ensures seamless integration into existing 460Vac systems, maintaining optimal airflow for critical condensing units and industrial machinery.

• Enhanced Compatibility: Direct replacement for FEH001 with a longer 6-inch shaft for flexible fitment across various fan blade depths.
• Durable Construction: Totally Enclosed Air Over (TEAO) design and ball bearings prevent premature failure caused by dust and water ingress.
• Thermal Resilience: Optimized for high-ambient temperatures up to 140°F (60°C), ideal for rooftop installations and intense sun exposure.
• Operational Safety: Built-in automatic reset thermal overload protector safeguards windings from overheating during voltage fluctuations.
• Installation Flexibility: Reversible rotation and extended stud mounting simplify the replacement process in diverse equipment housings.

Does this motor require a specific capacitor?
Yes, this 460V condenser motor is designed to operate with a 10 MFD 370V capacitor. Using the correct capacitance is critical for maintaining efficiency and ensuring the motor starts under load.

Can I install this in a vertical shaft-up or shaft-down orientation?
The US Motors 3738 features an all-angle mounting system and ball bearings, allowing it to be installed in any orientation. Ensure the drain plugs are removed at the lowest point of the motor to prevent condensation buildup.

What makes the 48YZ frame different from a standard 48 frame?
The 'YZ' suffix indicates a special mounting or shaft configuration. In the case of the 3738, it features extended studs and a specific shaft length that meets or exceeds OEM specifications for standard 5.6-inch diameter motors.

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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.