
Siemens Building Technology GMA226.1U Actuator
For contractors managing constant or variable air volume (VAV) systems, the Siemens GMA226.1U OpenAir electronic damper actuator is a reliable choice for high-torque requirements. This 120V actuator provides 62 lb-in torque and features a bi-directional spring return fail-safe, ensuring critical dampers move to a pre-defined position during power loss. Built with brushless DC motor technology, this unit offers stall protection and long-term performance without the maintenance associated with older brushed designs. The two-position control is optimized for controlling return air, mixed air, and exhaust dampers. Additionally, the integrated dual auxiliary switches provide essential feedback for system interlocks, making it a versatile drop-in for HVAC damper control. The self-centering shaft coupling simplifies installation on various shaft diameters, while the IP54-rated die-cast aluminum housing ensures durability in demanding mechanical rooms.
Key Benefits
- Fail-Safe Protection: Reliable mechanical spring return ensures 100% closure or opening upon power interruption in 15 seconds.
- Precise Integration: Features dual independently adjustable auxiliary switches for seamless coordination with fans or other building automation components.
- Rapid Installation: The unique self-centering shaft coupling accommodates round or square shafts, reducing labor time during field retrofits.
- High Torque Output: Delivering 62 lb-in (7 Nm) of torque, it is suitable for dampers up to approximately 15 square feet.
- Technician-Friendly Design: Includes a manual override for commissioning and a visible position indicator for quick status checks.
Common Questions
What is the typical runtime for this actuator?
The Siemens GMA226.1U has a motor-driven runtime of 90 seconds for a 90-degree rotation and a fast spring-return timing of approximately 15 seconds.
Can this unit replace a Belimo NF or LF series actuator?
Yes, as a direct-coupled spring return actuator with 62 lb-in torque, it is a common professional alternative for similar-sized competitive models in 2-position 120V applications.
Are the auxiliary switches adjustable?
The dual SPDT auxiliary switches are fully adjustable, allowing you to set specific trigger points for your application's sequence of operation.
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: $276.04
-65%$276.04
$96.61Siemens Building Technology GMA226.1U Actuator
For contractors managing constant or variable air volume (VAV) systems, the Siemens GMA226.1U OpenAir electronic damper actuator is a reliable choice for high-torque requirements. This 120V actuator provides 62 lb-in torque and features a bi-directional spring return fail-safe, ensuring critical dampers move to a pre-defined position during power loss. Built with brushless DC motor technology, this unit offers stall protection and long-term performance without the maintenance associated with older brushed designs. The two-position control is optimized for controlling return air, mixed air, and exhaust dampers. Additionally, the integrated dual auxiliary switches provide essential feedback for system interlocks, making it a versatile drop-in for HVAC damper control. The self-centering shaft coupling simplifies installation on various shaft diameters, while the IP54-rated die-cast aluminum housing ensures durability in demanding mechanical rooms.
Key Benefits
- Fail-Safe Protection: Reliable mechanical spring return ensures 100% closure or opening upon power interruption in 15 seconds.
- Precise Integration: Features dual independently adjustable auxiliary switches for seamless coordination with fans or other building automation components.
- Rapid Installation: The unique self-centering shaft coupling accommodates round or square shafts, reducing labor time during field retrofits.
- High Torque Output: Delivering 62 lb-in (7 Nm) of torque, it is suitable for dampers up to approximately 15 square feet.
- Technician-Friendly Design: Includes a manual override for commissioning and a visible position indicator for quick status checks.
Common Questions
What is the typical runtime for this actuator?
The Siemens GMA226.1U has a motor-driven runtime of 90 seconds for a 90-degree rotation and a fast spring-return timing of approximately 15 seconds.
Can this unit replace a Belimo NF or LF series actuator?
Yes, as a direct-coupled spring return actuator with 62 lb-in torque, it is a common professional alternative for similar-sized competitive models in 2-position 120V applications.
Are the auxiliary switches adjustable?
The dual SPDT auxiliary switches are fully adjustable, allowing you to set specific trigger points for your application's sequence of operation.
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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Product Information
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Description
For contractors managing constant or variable air volume (VAV) systems, the Siemens GMA226.1U OpenAir electronic damper actuator is a reliable choice for high-torque requirements. This 120V actuator provides 62 lb-in torque and features a bi-directional spring return fail-safe, ensuring critical dampers move to a pre-defined position during power loss. Built with brushless DC motor technology, this unit offers stall protection and long-term performance without the maintenance associated with older brushed designs. The two-position control is optimized for controlling return air, mixed air, and exhaust dampers. Additionally, the integrated dual auxiliary switches provide essential feedback for system interlocks, making it a versatile drop-in for HVAC damper control. The self-centering shaft coupling simplifies installation on various shaft diameters, while the IP54-rated die-cast aluminum housing ensures durability in demanding mechanical rooms.
Key Benefits
- Fail-Safe Protection: Reliable mechanical spring return ensures 100% closure or opening upon power interruption in 15 seconds.
- Precise Integration: Features dual independently adjustable auxiliary switches for seamless coordination with fans or other building automation components.
- Rapid Installation: The unique self-centering shaft coupling accommodates round or square shafts, reducing labor time during field retrofits.
- High Torque Output: Delivering 62 lb-in (7 Nm) of torque, it is suitable for dampers up to approximately 15 square feet.
- Technician-Friendly Design: Includes a manual override for commissioning and a visible position indicator for quick status checks.
Common Questions
What is the typical runtime for this actuator?
The Siemens GMA226.1U has a motor-driven runtime of 90 seconds for a 90-degree rotation and a fast spring-return timing of approximately 15 seconds.
Can this unit replace a Belimo NF or LF series actuator?
Yes, as a direct-coupled spring return actuator with 62 lb-in torque, it is a common professional alternative for similar-sized competitive models in 2-position 120V applications.
Are the auxiliary switches adjustable?
The dual SPDT auxiliary switches are fully adjustable, allowing you to set specific trigger points for your application's sequence of operation.
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.












