Siemens Building Technology GIB131.1P Actuator

The Siemens GIB131.1P is a heavy-duty OpenAir electronic actuator engineered for precise control of large dampers in commercial HVAC systems. Delivering a significant 310 lb-in torque, this non-spring return (NSR) rotary actuator is the industry standard for high-demand applications including VAV terminals, large air handlers, and exhaust dampers. Operating on 24V AC/DC, it utilizes 3-point floating control to maintain accurate positioning without the need for constant recalibration. The unit features a self-centering shaft adapter that eliminates common over-tightening issues and ensures concentric mounting on shafts ranging from 3/8 to 1 inch. Built for durability in tight spaces, the plenum-rated cable and rugged die-cast aluminum housing provide a robust solution for return air and mixed air damper automation. Its brushless motor technology and 125-second run time ensure reliable performance and extended operational life for professional contractors and technicians.

• Maximum Torque: Delivers 310 lb-in (35 Nm) to handle dampers up to 60 sq. ft. without stalling.
• Direct Mount Integration: Features a patented self-centering shaft coupling for fast, balanced installation on various shaft diameters.
• Plenum Rated: Includes 3-foot pre-wired 18 AWG cable, compliant for installation in plenum air spaces.
• Manual Override: Integrated push-button allows for easy gear disengagement during commissioning or manual system testing.
• Precision Control: Utilizes 3-position floating logic for stable, incremental damper adjustments in complex air volume systems.

Can the GIB131.1P be used in smoke control applications?
No, as a non-spring return (NSR) actuator, it stays in its last position upon power loss. For applications requiring a fail-safe position, a spring-return model should be specified.

What is the typical lifespan for this series?
The Siemens OpenAir series is rated for 100,000 full-stroke cycles and up to 5 million repositions, making it one of the most durable actuators for consistent VAV or AHU service.

Is tandem mounting supported for larger torque requirements?
Yes, this unit can be tandem-mounted with a second GIB actuator using the ASK73 series bracket to effectively double the torque output on a single shaft.

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.