Greenheck 311742 Motor
The Greenheck 311742 Motor is a high-performance 1/8 HP replacement motor engineered specifically for technical reliability in commercial exhaust systems and supply fans. Operating on a 115V single-phase 60Hz power supply, this PSC motor (Permanent Split Capacitor) delivers a nominal 92.6 watts of power with a maximum current draw of 1.6 Amps. Designed for versatile airflow control, it features a 3-speed configuration reaching 1550 RPM at high speed, with intermediate steps at 1300 and 1050 RPM to meet specific static pressure requirements. This OEM-spec unit utilizes an extended thru-bolt mount for secure installation within fan housings and includes automatic thermal protection to prevent winding failure during over-current events. With a 1/2-inch shaft diameter and Class B insulation, the Greenheck 311742 serves as a direct drop-in for Greenheck exhaust fan motors, including the 303441 legacy model, ensuring precise mechanical alignment and operational efficiency for critical ventilation infrastructure.
Key Benefits for HVACR Contractors:- Multi-Speed Versatility: The 3-speed operation (1550/1300/1050 RPM) allows for precise balancing of the ventilation system to match CFM requirements.
- Direct OEM Compatibility: Built to exact Greenheck specifications, eliminating the need for field modifications or bracket adjustments in compatible fan series.
- Enhanced Safety: Integrated auto-reset thermal overload protection prevents motor burnout, extending the service life of the air moving assembly.
- Rugged Construction: Features a 1/2" x 2-1/4" shaft and robust 115V PSC design for consistent torque and low-vibration performance in industrial environments.
What models does the Greenheck 311742 replace?
This motor is the primary replacement for Greenheck part 303441. When swapping these units, verify the mounting plate orientation; certain models like the SQ-95 may require plate #721648 for proper fitment.
Can this motor be used with a speed controller?
While this is a 3-speed tapped motor, it is designed for discrete speed selection. For variable speed applications, technicians should verify compatibility with existing solid-state speed controls to ensure the motor does not hum or overheat at low voltages.
What are the physical dimensions for fitment?
The motor measures approximately 5 inches in height and width with a 7-inch length. It utilizes an extended thru-bolt mounting pattern common in Greenheck spun aluminum and square in-line fans.
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: $416.31
-65%$416.31
$145.71Greenheck 311742 Motor
The Greenheck 311742 Motor is a high-performance 1/8 HP replacement motor engineered specifically for technical reliability in commercial exhaust systems and supply fans. Operating on a 115V single-phase 60Hz power supply, this PSC motor (Permanent Split Capacitor) delivers a nominal 92.6 watts of power with a maximum current draw of 1.6 Amps. Designed for versatile airflow control, it features a 3-speed configuration reaching 1550 RPM at high speed, with intermediate steps at 1300 and 1050 RPM to meet specific static pressure requirements. This OEM-spec unit utilizes an extended thru-bolt mount for secure installation within fan housings and includes automatic thermal protection to prevent winding failure during over-current events. With a 1/2-inch shaft diameter and Class B insulation, the Greenheck 311742 serves as a direct drop-in for Greenheck exhaust fan motors, including the 303441 legacy model, ensuring precise mechanical alignment and operational efficiency for critical ventilation infrastructure.
Key Benefits for HVACR Contractors:- Multi-Speed Versatility: The 3-speed operation (1550/1300/1050 RPM) allows for precise balancing of the ventilation system to match CFM requirements.
- Direct OEM Compatibility: Built to exact Greenheck specifications, eliminating the need for field modifications or bracket adjustments in compatible fan series.
- Enhanced Safety: Integrated auto-reset thermal overload protection prevents motor burnout, extending the service life of the air moving assembly.
- Rugged Construction: Features a 1/2" x 2-1/4" shaft and robust 115V PSC design for consistent torque and low-vibration performance in industrial environments.
What models does the Greenheck 311742 replace?
This motor is the primary replacement for Greenheck part 303441. When swapping these units, verify the mounting plate orientation; certain models like the SQ-95 may require plate #721648 for proper fitment.
Can this motor be used with a speed controller?
While this is a 3-speed tapped motor, it is designed for discrete speed selection. For variable speed applications, technicians should verify compatibility with existing solid-state speed controls to ensure the motor does not hum or overheat at low voltages.
What are the physical dimensions for fitment?
The motor measures approximately 5 inches in height and width with a 7-inch length. It utilizes an extended thru-bolt mounting pattern common in Greenheck spun aluminum and square in-line fans.
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
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Description
The Greenheck 311742 Motor is a high-performance 1/8 HP replacement motor engineered specifically for technical reliability in commercial exhaust systems and supply fans. Operating on a 115V single-phase 60Hz power supply, this PSC motor (Permanent Split Capacitor) delivers a nominal 92.6 watts of power with a maximum current draw of 1.6 Amps. Designed for versatile airflow control, it features a 3-speed configuration reaching 1550 RPM at high speed, with intermediate steps at 1300 and 1050 RPM to meet specific static pressure requirements. This OEM-spec unit utilizes an extended thru-bolt mount for secure installation within fan housings and includes automatic thermal protection to prevent winding failure during over-current events. With a 1/2-inch shaft diameter and Class B insulation, the Greenheck 311742 serves as a direct drop-in for Greenheck exhaust fan motors, including the 303441 legacy model, ensuring precise mechanical alignment and operational efficiency for critical ventilation infrastructure.
Key Benefits for HVACR Contractors:- Multi-Speed Versatility: The 3-speed operation (1550/1300/1050 RPM) allows for precise balancing of the ventilation system to match CFM requirements.
- Direct OEM Compatibility: Built to exact Greenheck specifications, eliminating the need for field modifications or bracket adjustments in compatible fan series.
- Enhanced Safety: Integrated auto-reset thermal overload protection prevents motor burnout, extending the service life of the air moving assembly.
- Rugged Construction: Features a 1/2" x 2-1/4" shaft and robust 115V PSC design for consistent torque and low-vibration performance in industrial environments.
What models does the Greenheck 311742 replace?
This motor is the primary replacement for Greenheck part 303441. When swapping these units, verify the mounting plate orientation; certain models like the SQ-95 may require plate #721648 for proper fitment.
Can this motor be used with a speed controller?
While this is a 3-speed tapped motor, it is designed for discrete speed selection. For variable speed applications, technicians should verify compatibility with existing solid-state speed controls to ensure the motor does not hum or overheat at low voltages.
What are the physical dimensions for fitment?
The motor measures approximately 5 inches in height and width with a 7-inch length. It utilizes an extended thru-bolt mounting pattern common in Greenheck spun aluminum and square in-line fans.
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.
