Siemens Building Technology GIB166.1U Actuator

The Siemens GIB166.1U is a high-torque OpenAir non-spring return actuator designed for the precise control of large dampers in commercial HVAC systems. Operating on a 24V AC/DC power supply, this modulating actuator utilizes a 0-10Vdc control signal to provide linear positioning with a 310 lb-in (35 Nm) torque rating, making it suitable for dampers up to 60 sq. ft. Its robust construction ensures reliable performance in air handling units and large-scale ventilation systems where maintaining specific pressure or airflow setpoints is critical. The unit features built-in adjustable auxiliary switches for position feedback and end-stop signaling, allowing for seamless integration into Building Automation Systems (BAS). Technical professionals value the GIB series for its self-centering shaft adapter, which minimizes installation time and reduces mechanical stress on the damper linkage, ensuring long-term field reliability without the need for frequent recalibration.

• High Torque Output: Provides 310 lb-in of force, capable of driving large dampers or high-static pressure configurations.
• Precise Modulation: Responds to 0-10Vdc signals for accurate proportional control of airflow and temperature.
• Flexible Installation: Features a self-centering shaft adapter that accommodates various round or square shaft sizes.
• Manual Override: Includes a manual declutch button for emergency positioning and system commissioning.
• Robust Enclosure: Rated for demanding mechanical room environments with integrated cable connections for simplified wiring.

Is the Siemens GIB166.1U compatible with 2-10Vdc signals?
Yes, while standard for 0-10Vdc, the modulating range is often scalable within the controller, and the actuator provides a linear response across the voltage spectrum for precise damper control.

Can this actuator be used for fail-safe applications?
No, the GIB166.1U is a non-spring return model. For applications requiring a fail-safe position upon loss of power, a spring-return series actuator must be specified.

What is the maximum damper size this unit can handle?
The 35 Nm torque rating is generally rated for dampers up to 60 square feet, though actual requirements vary based on seal friction and local static pressure conditions.

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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.