Siemens Building Technology GMA126.1P Actuator

The Siemens GMA126.1P is a high-performance OpenAir GMA Series rotary electronic damper actuator engineered for two-position control in demanding HVACR environments. Operating on a 24 VAC/VDC nominal voltage, this spring return actuator delivers a robust 62 lb-in (7 Nm) torque, ensuring reliable fail-safe operation for return air, mixed air, and exhaust dampers. Its brushless DC motor technology provides efficient performance and stall protection, while the die-cast aluminum housing offers NEMA 1 protection, suitable for plenum-rated installations.

Designed for precision and ease of installation, the Siemens GMA126.1P actuator features a unique self-centering shaft coupling that accommodates various shaft sizes. This specific model includes dual auxiliary switches, which are independently adjustable to provide critical position feedback or to trigger peripheral equipment. With a 90-second runtime and a 15-second spring return fail-safe, this unit is a staple for contractors looking for rotary damper control solutions that balance longevity and mechanical accuracy.

• Fail-Safe Reliability: Mechanical spring return ensures the damper reaches a seated position during power loss.
• Enhanced Feedback: Integrated dual auxiliary switches allow for customizable signal interlocking and monitoring.
• Efficient Installation: Plenum-rated cable and a self-centering shaft coupling reduce field setup time.
• Durable Construction: Features a brushless DC motor and a rugged die-cast aluminum enclosure for industrial longevity.

• What is the torque rating for the GMA126.1P? It provides 62 lb-in (7 Nm) of torque, ideal for medium-sized damper applications.
• Can this actuator be used with both AC and DC power? Yes, it is compatible with 24 VAC and 24 VDC power sources.
• Does this model support auxiliary feedback? Yes, it includes two independently adjustable auxiliary switches for position notification.

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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.