Siemens Building Technology GMA166.1U Actuator
The Siemens GMA166.1U is a high-performance OpenAir GMA Series electronic actuator designed for the rigorous demands of commercial HVAC systems. This spring return actuator provides a reliable 62 lb-in torque (7 Nm) capacity, making it the standard choice for controlling return air, mixed air, and exhaust dampers in both VAV systems and constant volume installations. Operating on a 24V AC/DC power supply, it utilizes a 0-10 VDC modulating control signal for precise positioning, supported by integrated position feedback for real-time monitoring and dual auxiliary switches for end-point signaling. Built with brushless DC motor technology and stall protection, it ensures long-term operational efficiency. The die-cast aluminum housing with a NEMA 1 rating provides robust protection for the internal self-centering shaft coupling and mechanical range adjustments, ensuring a secure fit on variety of damper shafts while permitting a 15-second fail-safe closure during power loss.
- Precision Control: Features a 0-10 VDC modulating signal with a 90-second run time for smooth, accurate air volume adjustments.
- Enhanced Safety: Built-in bi-directional spring return provides a 15-second fail-safe response to power interruptions.
- Versatile Signaling: Includes dual independently adjustable auxiliary switches and 0-10V position feedback for comprehensive system integration.
- Robust Construction: Housed in a durable NEMA 1 die-cast aluminum enclosure designed to withstand typical mechanical room environments.
- Installation Efficiency: Equipped with a self-centering shaft coupling and a 3-foot pre-terminated cable to reduce commissioning time.
How do I wire the position feedback for this Siemens actuator?
The feedback signal is accessible via the standard wire leads. Connect the designated feedback wire to your controller's analog input to monitor the 0-10 VDC signal, which corresponds to the 0 to 90-degree stroke of the damper.
Can the auxiliary switches be adjusted in the field?
Yes, the GMA166.1U features two independently adjustable auxiliary switches. You can set the switching points anywhere within the 0 to 90-degree range to trigger external equipment like fans or indicate damper status.
Is this model compatible with both AC and DC power?
The unit is designed for universal 24V applications, accepting either 24 VAC or 24 VDC, providing flexibility for various control transformer configurations on the job site.
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: $330.84
-65%$330.84
$115.79Siemens Building Technology GMA166.1U Actuator
The Siemens GMA166.1U is a high-performance OpenAir GMA Series electronic actuator designed for the rigorous demands of commercial HVAC systems. This spring return actuator provides a reliable 62 lb-in torque (7 Nm) capacity, making it the standard choice for controlling return air, mixed air, and exhaust dampers in both VAV systems and constant volume installations. Operating on a 24V AC/DC power supply, it utilizes a 0-10 VDC modulating control signal for precise positioning, supported by integrated position feedback for real-time monitoring and dual auxiliary switches for end-point signaling. Built with brushless DC motor technology and stall protection, it ensures long-term operational efficiency. The die-cast aluminum housing with a NEMA 1 rating provides robust protection for the internal self-centering shaft coupling and mechanical range adjustments, ensuring a secure fit on variety of damper shafts while permitting a 15-second fail-safe closure during power loss.
- Precision Control: Features a 0-10 VDC modulating signal with a 90-second run time for smooth, accurate air volume adjustments.
- Enhanced Safety: Built-in bi-directional spring return provides a 15-second fail-safe response to power interruptions.
- Versatile Signaling: Includes dual independently adjustable auxiliary switches and 0-10V position feedback for comprehensive system integration.
- Robust Construction: Housed in a durable NEMA 1 die-cast aluminum enclosure designed to withstand typical mechanical room environments.
- Installation Efficiency: Equipped with a self-centering shaft coupling and a 3-foot pre-terminated cable to reduce commissioning time.
How do I wire the position feedback for this Siemens actuator?
The feedback signal is accessible via the standard wire leads. Connect the designated feedback wire to your controller's analog input to monitor the 0-10 VDC signal, which corresponds to the 0 to 90-degree stroke of the damper.
Can the auxiliary switches be adjusted in the field?
Yes, the GMA166.1U features two independently adjustable auxiliary switches. You can set the switching points anywhere within the 0 to 90-degree range to trigger external equipment like fans or indicate damper status.
Is this model compatible with both AC and DC power?
The unit is designed for universal 24V applications, accepting either 24 VAC or 24 VDC, providing flexibility for various control transformer configurations on the job site.
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
Product Information
Shipping & Returns
Shipping & Returns
Description
The Siemens GMA166.1U is a high-performance OpenAir GMA Series electronic actuator designed for the rigorous demands of commercial HVAC systems. This spring return actuator provides a reliable 62 lb-in torque (7 Nm) capacity, making it the standard choice for controlling return air, mixed air, and exhaust dampers in both VAV systems and constant volume installations. Operating on a 24V AC/DC power supply, it utilizes a 0-10 VDC modulating control signal for precise positioning, supported by integrated position feedback for real-time monitoring and dual auxiliary switches for end-point signaling. Built with brushless DC motor technology and stall protection, it ensures long-term operational efficiency. The die-cast aluminum housing with a NEMA 1 rating provides robust protection for the internal self-centering shaft coupling and mechanical range adjustments, ensuring a secure fit on variety of damper shafts while permitting a 15-second fail-safe closure during power loss.
- Precision Control: Features a 0-10 VDC modulating signal with a 90-second run time for smooth, accurate air volume adjustments.
- Enhanced Safety: Built-in bi-directional spring return provides a 15-second fail-safe response to power interruptions.
- Versatile Signaling: Includes dual independently adjustable auxiliary switches and 0-10V position feedback for comprehensive system integration.
- Robust Construction: Housed in a durable NEMA 1 die-cast aluminum enclosure designed to withstand typical mechanical room environments.
- Installation Efficiency: Equipped with a self-centering shaft coupling and a 3-foot pre-terminated cable to reduce commissioning time.
How do I wire the position feedback for this Siemens actuator?
The feedback signal is accessible via the standard wire leads. Connect the designated feedback wire to your controller's analog input to monitor the 0-10 VDC signal, which corresponds to the 0 to 90-degree stroke of the damper.
Can the auxiliary switches be adjusted in the field?
Yes, the GMA166.1U features two independently adjustable auxiliary switches. You can set the switching points anywhere within the 0 to 90-degree range to trigger external equipment like fans or indicate damper status.
Is this model compatible with both AC and DC power?
The unit is designed for universal 24V applications, accepting either 24 VAC or 24 VDC, providing flexibility for various control transformer configurations on the job site.
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.
