Siemens GMA OpenAir Electronic Damper Actuator

The OpenAir direct-coupled spring return electronic actuator is designed for modulating, two-position, and floating control of building HVAC dampers.

Features:

• Brushless DC motor technology with stall protection
• Bi-directional fail-safe spring return
• Models available with dual, independently adjustable auxiliary switches
• Unique self-centering shaft coupling
• Manual override
• Available in 62 lb-in torque
• 5° preload as shipped from factory
• Mechanical range adjustment capabilities
• UL and cUL listed, CE certified •
• 24 Vac/dc compatible

Available Part Numbers:

• GMA126.1U – 24Vac, 2 Position Control, Standard Cable, Dual Auxiliary Switches
• GMA221.1U – 120Vac, 2 Position Control, Standard Cable, 
• GMA226.1U – 120Vac, 2 Position Control, Standard Cable, Dual Auxiliary Switches

Please call or email for Information regarding part numbers not listed above.  

Resources:

• GMA Actuator Technical Literature