
Nidec-US Motors 1145 Motor
The Nidec-US Motors 1145 is a professional-grade direct drive blower motor engineered for consistent performance in residential and light commercial HVAC systems. This 1/3 HP blower motor operates at a nominal 1075 RPM on a 115V single-phase circuit, pulling approximately 4.9 Amps at full load. Built with a 48YZ NEMA frame and an Open Air Over (OAO) enclosure, this unit utilizes the surrounding airflow to manage heat dissipation during continuous duty cycles. As a Permanent Split Capacitor (PSC) motor, it requires a 7.5 MFD capacitor (typically included) to ensure high starting torque and operational efficiency. The 1/2" diameter x 3.0" long shaft is designed for standard squirrel cage blowers, while the 4-stud mounting and reversible rotation capability—simply swap the yellow and black leads—make it a versatile HVAC replacement motor for a wide range of furnace and air handler brands.
- High-Efficiency PSC Design: Optimizes electrical consumption while maintaining steady torque for furnace blower motor replacement.
- Industrial Durability: Features self-aligning ball bearings for reduced friction and extended life in 40°C ambient environments.
- Universal Application: The reversible rotation and standard 5.6-inch diameter allow this motor to replace numerous OEM models.
- Thermal Protection: Integrated automatic reset thermal overload protector prevents winding damage during restricted airflow or high-amperage events.
Common Questions
What capacitor is required for the US Motors 1145?
This motor is specifically designed for use with a 7.5 MFD / 370V capacitor. Using an incorrectly sized capacitor can lead to overheating or failure of the start windings.
Can I use this motor in a damp environment?
Because this is an Open Air Over (OAO) motor, it must be installed within the path of the blower airflow and protected from direct moisture or debris. It is not intended for outdoor condenser fan applications where it may be exposed to rain.
How do I change the rotation direction?
The 1145 motor features a reversible design. To change from Clockwise (CW) to Counter-Clockwise (CCW), you swap the dedicated reversing lead connectors located on the motor's lead-end.
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.
Original: $221.11
-65%$221.11
$77.39Nidec-US Motors 1145 Motor
The Nidec-US Motors 1145 is a professional-grade direct drive blower motor engineered for consistent performance in residential and light commercial HVAC systems. This 1/3 HP blower motor operates at a nominal 1075 RPM on a 115V single-phase circuit, pulling approximately 4.9 Amps at full load. Built with a 48YZ NEMA frame and an Open Air Over (OAO) enclosure, this unit utilizes the surrounding airflow to manage heat dissipation during continuous duty cycles. As a Permanent Split Capacitor (PSC) motor, it requires a 7.5 MFD capacitor (typically included) to ensure high starting torque and operational efficiency. The 1/2" diameter x 3.0" long shaft is designed for standard squirrel cage blowers, while the 4-stud mounting and reversible rotation capability—simply swap the yellow and black leads—make it a versatile HVAC replacement motor for a wide range of furnace and air handler brands.
- High-Efficiency PSC Design: Optimizes electrical consumption while maintaining steady torque for furnace blower motor replacement.
- Industrial Durability: Features self-aligning ball bearings for reduced friction and extended life in 40°C ambient environments.
- Universal Application: The reversible rotation and standard 5.6-inch diameter allow this motor to replace numerous OEM models.
- Thermal Protection: Integrated automatic reset thermal overload protector prevents winding damage during restricted airflow or high-amperage events.
Common Questions
What capacitor is required for the US Motors 1145?
This motor is specifically designed for use with a 7.5 MFD / 370V capacitor. Using an incorrectly sized capacitor can lead to overheating or failure of the start windings.
Can I use this motor in a damp environment?
Because this is an Open Air Over (OAO) motor, it must be installed within the path of the blower airflow and protected from direct moisture or debris. It is not intended for outdoor condenser fan applications where it may be exposed to rain.
How do I change the rotation direction?
The 1145 motor features a reversible design. To change from Clockwise (CW) to Counter-Clockwise (CCW), you swap the dedicated reversing lead connectors located on the motor's lead-end.
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
Shipping & Returns
Shipping & Returns
Description
The Nidec-US Motors 1145 is a professional-grade direct drive blower motor engineered for consistent performance in residential and light commercial HVAC systems. This 1/3 HP blower motor operates at a nominal 1075 RPM on a 115V single-phase circuit, pulling approximately 4.9 Amps at full load. Built with a 48YZ NEMA frame and an Open Air Over (OAO) enclosure, this unit utilizes the surrounding airflow to manage heat dissipation during continuous duty cycles. As a Permanent Split Capacitor (PSC) motor, it requires a 7.5 MFD capacitor (typically included) to ensure high starting torque and operational efficiency. The 1/2" diameter x 3.0" long shaft is designed for standard squirrel cage blowers, while the 4-stud mounting and reversible rotation capability—simply swap the yellow and black leads—make it a versatile HVAC replacement motor for a wide range of furnace and air handler brands.
- High-Efficiency PSC Design: Optimizes electrical consumption while maintaining steady torque for furnace blower motor replacement.
- Industrial Durability: Features self-aligning ball bearings for reduced friction and extended life in 40°C ambient environments.
- Universal Application: The reversible rotation and standard 5.6-inch diameter allow this motor to replace numerous OEM models.
- Thermal Protection: Integrated automatic reset thermal overload protector prevents winding damage during restricted airflow or high-amperage events.
Common Questions
What capacitor is required for the US Motors 1145?
This motor is specifically designed for use with a 7.5 MFD / 370V capacitor. Using an incorrectly sized capacitor can lead to overheating or failure of the start windings.
Can I use this motor in a damp environment?
Because this is an Open Air Over (OAO) motor, it must be installed within the path of the blower airflow and protected from direct moisture or debris. It is not intended for outdoor condenser fan applications where it may be exposed to rain.
How do I change the rotation direction?
The 1145 motor features a reversible design. To change from Clockwise (CW) to Counter-Clockwise (CCW), you swap the dedicated reversing lead connectors located on the motor's lead-end.
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.












