Nidec-US Motors 644 Motor
The Nidec-US Motors 644 Motor is a high-performance 1/2 HP condenser fan motor engineered for commercial refrigeration and HVAC applications. Operating at 1725 RPM on a 208-230V single-phase power supply, this Permanent Split Capacitor (PSC) motor draws 2.7 Amps and is built with a standard 48Y NEMA frame size. Designed for reliability in demanding environments, it features a 5.6-inch diameter open enclosure to facilitate efficient heat dissipation during continuous duty operations. The ball bearing construction ensures smooth rotation and extended service life compared to traditional sleeve bearings, even under high-temperature conditions. This stud mount motor includes a 1/2" x 3.5" shaft and is a common condensing unit replacement motor for manufacturers like Hussman. Equipped with automatic overload protection and Class B insulation, it providing a drop-in solution for technicians requiring precise CCW shaft end rotation in refrigeration condenser systems.
- Enhanced Durability: Dual ball bearings reduce friction and handle higher axial and radial loads in vertical or horizontal mounting positions.
- High Operational Efficiency: The PSC motor design optimizes energy consumption and provides reliable starting torque for large fan blades.
- Universal Frame Compatibility: The NEMA 48Y frame with multiple stud mounting options allows for seamless integration into various condenser assemblies.
- Built-In Safety: Integrated thermal overload protection prevents winding damage by automatically interrupting power during excessive heat buildup.
Common Questions
What is the correct capacitor for the Nidec 644 motor?
This motor is designed to work with a 370V run capacitor. Always verify the MFD rating on the motor nameplate before installation to ensure proper phased displacement.
Can this motor be used on 50Hz power systems?
Yes, the 644 model is rated for dual-frequency 50/60 Hz operation, making it suitable for a wide range of domestic and international refrigeration equipment.
Is this a direct replacement for Hussman condenser fans?
Technicians frequently use the 644 as a primary aftermarket replacement for Hussman part numbers like 259983 and K55HXCTP9963 due to its specific RPM and mounting configuration.
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.
Product Information
Product Information
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Shipping & Returns
Description
The Nidec-US Motors 644 Motor is a high-performance 1/2 HP condenser fan motor engineered for commercial refrigeration and HVAC applications. Operating at 1725 RPM on a 208-230V single-phase power supply, this Permanent Split Capacitor (PSC) motor draws 2.7 Amps and is built with a standard 48Y NEMA frame size. Designed for reliability in demanding environments, it features a 5.6-inch diameter open enclosure to facilitate efficient heat dissipation during continuous duty operations. The ball bearing construction ensures smooth rotation and extended service life compared to traditional sleeve bearings, even under high-temperature conditions. This stud mount motor includes a 1/2" x 3.5" shaft and is a common condensing unit replacement motor for manufacturers like Hussman. Equipped with automatic overload protection and Class B insulation, it providing a drop-in solution for technicians requiring precise CCW shaft end rotation in refrigeration condenser systems.
- Enhanced Durability: Dual ball bearings reduce friction and handle higher axial and radial loads in vertical or horizontal mounting positions.
- High Operational Efficiency: The PSC motor design optimizes energy consumption and provides reliable starting torque for large fan blades.
- Universal Frame Compatibility: The NEMA 48Y frame with multiple stud mounting options allows for seamless integration into various condenser assemblies.
- Built-In Safety: Integrated thermal overload protection prevents winding damage by automatically interrupting power during excessive heat buildup.
Common Questions
What is the correct capacitor for the Nidec 644 motor?
This motor is designed to work with a 370V run capacitor. Always verify the MFD rating on the motor nameplate before installation to ensure proper phased displacement.
Can this motor be used on 50Hz power systems?
Yes, the 644 model is rated for dual-frequency 50/60 Hz operation, making it suitable for a wide range of domestic and international refrigeration equipment.
Is this a direct replacement for Hussman condenser fans?
Technicians frequently use the 644 as a primary aftermarket replacement for Hussman part numbers like 259983 and K55HXCTP9963 due to its specific RPM and mounting configuration.
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.
