
Siemens Building Technology GBB161.1U Actuator
The Siemens Building Technology GBB161.1U Actuator is a heavy-duty, direct-coupled solution engineered for demand-driven regulating in large-scale HVAC systems. This modulating non-spring return (NSR) actuator delivers a high 221 lb-in (25 Nm) torque, making it suitable for managing supply air, return air, and face-and-bypass dampers in both VAV and CV installations. Operating on a 24VAC standard power supply, it responds to a precise 0-10VDC control signal to maintain optimal airflow. Its all-metal housing and brushless motor technology ensure long-term durability in high-cycle environments. The unit features a self-centering shaft coupling that accommodates various shaft diameters up to 1 inch, simplifying field installation and ensuring consistent mechanical transfer. With built-in feedback and a 125-second runtime, this Siemens OpenAir series component provides reliable, quiet operation with manual override capabilities for routine system balancing and commissioning.
Key Benefits
- High-efficiency brushless motor provides stall protection and quiet operation under 35 dBA.
- Self-centering shaft coupling drastically reduces installation time and minimizes mechanical wear.
- Durable die-cast aluminum enclosure meets NEMA 2 and IP54 ratings for reliable performance in industrial conditions.
- Integrated position feedback signal allows for real-time monitoring via the building automation system.
- Non-spring return design eliminates unnecessary spring fatigue in applications where fail-safe is not required.
Common Questions
What is the maximum torque capacity for the GBB161.1U?
This model provides a nominal 221 lb-in (25 Nm) torque, which is typically sufficient for dampers up to approximately 55 square feet depending on seal type and air velocity.
Can the control signal be customized for 2-10VDC applications?
The GBB161.1U is designed for a standard 0-10VDC modulating control signal; please check your controller output compatibility before installation.
Is this actuator suitable for outdoor rooftop unit (RTU) applications?
While the standard enclosure is NEMA 2, it can be upgraded to NEMA 3R or NEMA 4X protection levels when paired with the appropriate Siemens weather shield accessories.
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: $267.74
-65%$267.74
$93.71Siemens Building Technology GBB161.1U Actuator
The Siemens Building Technology GBB161.1U Actuator is a heavy-duty, direct-coupled solution engineered for demand-driven regulating in large-scale HVAC systems. This modulating non-spring return (NSR) actuator delivers a high 221 lb-in (25 Nm) torque, making it suitable for managing supply air, return air, and face-and-bypass dampers in both VAV and CV installations. Operating on a 24VAC standard power supply, it responds to a precise 0-10VDC control signal to maintain optimal airflow. Its all-metal housing and brushless motor technology ensure long-term durability in high-cycle environments. The unit features a self-centering shaft coupling that accommodates various shaft diameters up to 1 inch, simplifying field installation and ensuring consistent mechanical transfer. With built-in feedback and a 125-second runtime, this Siemens OpenAir series component provides reliable, quiet operation with manual override capabilities for routine system balancing and commissioning.
Key Benefits
- High-efficiency brushless motor provides stall protection and quiet operation under 35 dBA.
- Self-centering shaft coupling drastically reduces installation time and minimizes mechanical wear.
- Durable die-cast aluminum enclosure meets NEMA 2 and IP54 ratings for reliable performance in industrial conditions.
- Integrated position feedback signal allows for real-time monitoring via the building automation system.
- Non-spring return design eliminates unnecessary spring fatigue in applications where fail-safe is not required.
Common Questions
What is the maximum torque capacity for the GBB161.1U?
This model provides a nominal 221 lb-in (25 Nm) torque, which is typically sufficient for dampers up to approximately 55 square feet depending on seal type and air velocity.
Can the control signal be customized for 2-10VDC applications?
The GBB161.1U is designed for a standard 0-10VDC modulating control signal; please check your controller output compatibility before installation.
Is this actuator suitable for outdoor rooftop unit (RTU) applications?
While the standard enclosure is NEMA 2, it can be upgraded to NEMA 3R or NEMA 4X protection levels when paired with the appropriate Siemens weather shield accessories.
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
The Siemens Building Technology GBB161.1U Actuator is a heavy-duty, direct-coupled solution engineered for demand-driven regulating in large-scale HVAC systems. This modulating non-spring return (NSR) actuator delivers a high 221 lb-in (25 Nm) torque, making it suitable for managing supply air, return air, and face-and-bypass dampers in both VAV and CV installations. Operating on a 24VAC standard power supply, it responds to a precise 0-10VDC control signal to maintain optimal airflow. Its all-metal housing and brushless motor technology ensure long-term durability in high-cycle environments. The unit features a self-centering shaft coupling that accommodates various shaft diameters up to 1 inch, simplifying field installation and ensuring consistent mechanical transfer. With built-in feedback and a 125-second runtime, this Siemens OpenAir series component provides reliable, quiet operation with manual override capabilities for routine system balancing and commissioning.
Key Benefits
- High-efficiency brushless motor provides stall protection and quiet operation under 35 dBA.
- Self-centering shaft coupling drastically reduces installation time and minimizes mechanical wear.
- Durable die-cast aluminum enclosure meets NEMA 2 and IP54 ratings for reliable performance in industrial conditions.
- Integrated position feedback signal allows for real-time monitoring via the building automation system.
- Non-spring return design eliminates unnecessary spring fatigue in applications where fail-safe is not required.
Common Questions
What is the maximum torque capacity for the GBB161.1U?
This model provides a nominal 221 lb-in (25 Nm) torque, which is typically sufficient for dampers up to approximately 55 square feet depending on seal type and air velocity.
Can the control signal be customized for 2-10VDC applications?
The GBB161.1U is designed for a standard 0-10VDC modulating control signal; please check your controller output compatibility before installation.
Is this actuator suitable for outdoor rooftop unit (RTU) applications?
While the standard enclosure is NEMA 2, it can be upgraded to NEMA 3R or NEMA 4X protection levels when paired with the appropriate Siemens weather shield accessories.
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.












