
Belimo GMB24-3 Actuator
The Belimo GMB24-3 Actuator is a heavy-duty, non-spring return damper actuator designed for reliable on/off or floating point control in high-torque commercial HVACR systems. Delivering a robust 360 in-lb torque, this rotary actuator is engineered to drive large damper surfaces—up to 90 sq. ft.—without the need for complex linkages. It operates on a universal 24Vac/Vdc power supply, utilizing a brushless DC motor controlled by an Application Specific Integrated Circuit (ASIC) for precise 95-degree rotation and digital rotation sensing. This specialized circuit protects the motor from stall-related damage, ensuring the unit stops automatically at its end position or upon reaching a physical obstruction. The GMB24-3 features a manual override button for simplified commissioning and a reversing switch for flexible control logic adaptation. Maintenance-free by design, this NEMA 2/IP54 rated motor is ideal for air plenums and demanding mechanical environments where consistent 150-second run times are required regardless of load.
Key Benefits- High Torque Performance: Delivers 360 in-lb (40 Nm) to manage large-scale damper and valve assemblies.
- Electronic Overload Protection: Eliminates the need for end-position limit switches by monitoring motor rotation electronically.
- Versatile 24V Compatibility: Functions seamlessly on both 24V AC and 24V DC power sources for broad site application.
- Easy Installation: Features a universal shaft clamp for direct coupling to shafts up to 1.05 inches in diameter.
- Manual Override: External push-button allows for gear disengagement and manual damper positioning during testing.
Can the GMB24-3 be used in outdoor applications?
Standard units are rated NEMA 2/IP54 for indoor use. For outdoor installation, a protective weather shield (such as the ZS series) is required to prevent environmental damage.
What is the difference between On/Off and Floating Point control for this model?
In On/Off mode, the actuator moves fully open or closed. Under floating point control, the actuator can be stopped at any point in its 95-degree stroke, allowing for more precise airflow management.
Is a transformer required for the GMB24-3?
If your control system does not provide 24V AC/DC, a Class 2 transformer sized for at least 6 VA is necessary to power the unit safely.
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: $375.57
-65%$375.57
$131.45Belimo GMB24-3 Actuator
The Belimo GMB24-3 Actuator is a heavy-duty, non-spring return damper actuator designed for reliable on/off or floating point control in high-torque commercial HVACR systems. Delivering a robust 360 in-lb torque, this rotary actuator is engineered to drive large damper surfaces—up to 90 sq. ft.—without the need for complex linkages. It operates on a universal 24Vac/Vdc power supply, utilizing a brushless DC motor controlled by an Application Specific Integrated Circuit (ASIC) for precise 95-degree rotation and digital rotation sensing. This specialized circuit protects the motor from stall-related damage, ensuring the unit stops automatically at its end position or upon reaching a physical obstruction. The GMB24-3 features a manual override button for simplified commissioning and a reversing switch for flexible control logic adaptation. Maintenance-free by design, this NEMA 2/IP54 rated motor is ideal for air plenums and demanding mechanical environments where consistent 150-second run times are required regardless of load.
Key Benefits- High Torque Performance: Delivers 360 in-lb (40 Nm) to manage large-scale damper and valve assemblies.
- Electronic Overload Protection: Eliminates the need for end-position limit switches by monitoring motor rotation electronically.
- Versatile 24V Compatibility: Functions seamlessly on both 24V AC and 24V DC power sources for broad site application.
- Easy Installation: Features a universal shaft clamp for direct coupling to shafts up to 1.05 inches in diameter.
- Manual Override: External push-button allows for gear disengagement and manual damper positioning during testing.
Can the GMB24-3 be used in outdoor applications?
Standard units are rated NEMA 2/IP54 for indoor use. For outdoor installation, a protective weather shield (such as the ZS series) is required to prevent environmental damage.
What is the difference between On/Off and Floating Point control for this model?
In On/Off mode, the actuator moves fully open or closed. Under floating point control, the actuator can be stopped at any point in its 95-degree stroke, allowing for more precise airflow management.
Is a transformer required for the GMB24-3?
If your control system does not provide 24V AC/DC, a Class 2 transformer sized for at least 6 VA is necessary to power the unit safely.
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.
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Description
The Belimo GMB24-3 Actuator is a heavy-duty, non-spring return damper actuator designed for reliable on/off or floating point control in high-torque commercial HVACR systems. Delivering a robust 360 in-lb torque, this rotary actuator is engineered to drive large damper surfaces—up to 90 sq. ft.—without the need for complex linkages. It operates on a universal 24Vac/Vdc power supply, utilizing a brushless DC motor controlled by an Application Specific Integrated Circuit (ASIC) for precise 95-degree rotation and digital rotation sensing. This specialized circuit protects the motor from stall-related damage, ensuring the unit stops automatically at its end position or upon reaching a physical obstruction. The GMB24-3 features a manual override button for simplified commissioning and a reversing switch for flexible control logic adaptation. Maintenance-free by design, this NEMA 2/IP54 rated motor is ideal for air plenums and demanding mechanical environments where consistent 150-second run times are required regardless of load.
Key Benefits- High Torque Performance: Delivers 360 in-lb (40 Nm) to manage large-scale damper and valve assemblies.
- Electronic Overload Protection: Eliminates the need for end-position limit switches by monitoring motor rotation electronically.
- Versatile 24V Compatibility: Functions seamlessly on both 24V AC and 24V DC power sources for broad site application.
- Easy Installation: Features a universal shaft clamp for direct coupling to shafts up to 1.05 inches in diameter.
- Manual Override: External push-button allows for gear disengagement and manual damper positioning during testing.
Can the GMB24-3 be used in outdoor applications?
Standard units are rated NEMA 2/IP54 for indoor use. For outdoor installation, a protective weather shield (such as the ZS series) is required to prevent environmental damage.
What is the difference between On/Off and Floating Point control for this model?
In On/Off mode, the actuator moves fully open or closed. Under floating point control, the actuator can be stopped at any point in its 95-degree stroke, allowing for more precise airflow management.
Is a transformer required for the GMB24-3?
If your control system does not provide 24V AC/DC, a Class 2 transformer sized for at least 6 VA is necessary to power the unit safely.
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.












