Siemens Building Technology GMA121.1P Actuator
The Siemens GMA121.1P is a heavy-duty OpenAir electronic damper actuator designed for the rigorous demands of commercial HVAC systems. Engineering for reliability, this 24V spring return actuator delivers 62 lb-in torque (7 Nm), making it an ideal choice for managing return air, exhaust, and face-and-bypass dampers in both constant and variable air volume (VAV) installations. The 2-position control (on/off) logic ensures decisive operation, while the mechanical spring return provides a critical fail-safe, returning the damper to its original position during power loss in approximately 15 seconds.
Built with a brushless DC motor, the GMA121.1P features stall protection to prevent motor burnout and extend the service life of the unit. This model comes equipped with a 3ft plenum cable, meeting UL requirements for installation in ceiling spaces and air handling plenums without the need for additional conduit. The self-centering shaft coupling simplifies the installation process for contractors, accommodating a variety of shaft sizes and ensuring a slip-free connection. With its NEMA 1 (IP54) rated die-cast aluminum housing, this direct-coupled actuator is a robust solution for professional ventilation control.
Key Benefits
- High-performance 62 lb-in torque handles mid-sized dampers with precision.
- Reliable spring return fail-safe ensures system safety during power interruptions.
- Integrated 3ft plenum cable allows for code-compliant installation in air handling spaces.
- Brushless DC motor technology eliminates the risk of motor stalling and overheating.
- Compact OpenAir series design fits easily into tight mechanical footprints.
Common Questions
Does this unit support modulating control signal inputs?
No, the Siemens GMA121.1P is specifically designed for 2-position control (on/off). If your application requires 0-10 Vdc modulating input, you should specify an alternative model within the OpenAir series.
Can I manually override the actuator position during setup?
Yes, this model includes a manual override feature that allows technicians to position the damper and lock it in place during commissioning or maintenance.
What is the typical runtime for this actuator?
Under normal powered operation, the drive time for a 90-degree rotation is approximately 90 seconds. The spring return fail-safe operation completes in approximately 15 seconds upon power removal.
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: $204.60
-65%$204.60
$71.61Siemens Building Technology GMA121.1P Actuator
The Siemens GMA121.1P is a heavy-duty OpenAir electronic damper actuator designed for the rigorous demands of commercial HVAC systems. Engineering for reliability, this 24V spring return actuator delivers 62 lb-in torque (7 Nm), making it an ideal choice for managing return air, exhaust, and face-and-bypass dampers in both constant and variable air volume (VAV) installations. The 2-position control (on/off) logic ensures decisive operation, while the mechanical spring return provides a critical fail-safe, returning the damper to its original position during power loss in approximately 15 seconds.
Built with a brushless DC motor, the GMA121.1P features stall protection to prevent motor burnout and extend the service life of the unit. This model comes equipped with a 3ft plenum cable, meeting UL requirements for installation in ceiling spaces and air handling plenums without the need for additional conduit. The self-centering shaft coupling simplifies the installation process for contractors, accommodating a variety of shaft sizes and ensuring a slip-free connection. With its NEMA 1 (IP54) rated die-cast aluminum housing, this direct-coupled actuator is a robust solution for professional ventilation control.
Key Benefits
- High-performance 62 lb-in torque handles mid-sized dampers with precision.
- Reliable spring return fail-safe ensures system safety during power interruptions.
- Integrated 3ft plenum cable allows for code-compliant installation in air handling spaces.
- Brushless DC motor technology eliminates the risk of motor stalling and overheating.
- Compact OpenAir series design fits easily into tight mechanical footprints.
Common Questions
Does this unit support modulating control signal inputs?
No, the Siemens GMA121.1P is specifically designed for 2-position control (on/off). If your application requires 0-10 Vdc modulating input, you should specify an alternative model within the OpenAir series.
Can I manually override the actuator position during setup?
Yes, this model includes a manual override feature that allows technicians to position the damper and lock it in place during commissioning or maintenance.
What is the typical runtime for this actuator?
Under normal powered operation, the drive time for a 90-degree rotation is approximately 90 seconds. The spring return fail-safe operation completes in approximately 15 seconds upon power removal.
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 Siemens GMA121.1P is a heavy-duty OpenAir electronic damper actuator designed for the rigorous demands of commercial HVAC systems. Engineering for reliability, this 24V spring return actuator delivers 62 lb-in torque (7 Nm), making it an ideal choice for managing return air, exhaust, and face-and-bypass dampers in both constant and variable air volume (VAV) installations. The 2-position control (on/off) logic ensures decisive operation, while the mechanical spring return provides a critical fail-safe, returning the damper to its original position during power loss in approximately 15 seconds.
Built with a brushless DC motor, the GMA121.1P features stall protection to prevent motor burnout and extend the service life of the unit. This model comes equipped with a 3ft plenum cable, meeting UL requirements for installation in ceiling spaces and air handling plenums without the need for additional conduit. The self-centering shaft coupling simplifies the installation process for contractors, accommodating a variety of shaft sizes and ensuring a slip-free connection. With its NEMA 1 (IP54) rated die-cast aluminum housing, this direct-coupled actuator is a robust solution for professional ventilation control.
Key Benefits
- High-performance 62 lb-in torque handles mid-sized dampers with precision.
- Reliable spring return fail-safe ensures system safety during power interruptions.
- Integrated 3ft plenum cable allows for code-compliant installation in air handling spaces.
- Brushless DC motor technology eliminates the risk of motor stalling and overheating.
- Compact OpenAir series design fits easily into tight mechanical footprints.
Common Questions
Does this unit support modulating control signal inputs?
No, the Siemens GMA121.1P is specifically designed for 2-position control (on/off). If your application requires 0-10 Vdc modulating input, you should specify an alternative model within the OpenAir series.
Can I manually override the actuator position during setup?
Yes, this model includes a manual override feature that allows technicians to position the damper and lock it in place during commissioning or maintenance.
What is the typical runtime for this actuator?
Under normal powered operation, the drive time for a 90-degree rotation is approximately 90 seconds. The spring return fail-safe operation completes in approximately 15 seconds upon power removal.
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.
