Description
Siemens GMA126.1P 2-Position Spring-Return Damper Actuator with Dual Auxiliary Switches
The Siemens Building Technology GMA126.1P is a 2-position, 24V spring-return damper actuator engineered for dependable on/off control in commercial and industrial HVAC applications. Designed for integration into building automation systems, this actuator delivers consistent, repeatable performance for damper positioning in air handling, ventilation, and zone control systems.
Key Features
- 2-position (open/close) control for straightforward damper actuation
- 24V AC/DC power supply for broad compatibility with standard HVAC control systems
- Spring-return (S/R) fail-safe operation — automatically returns damper to the safe position upon loss of power
- Dual auxiliary switches (DUAL AUX) provide end-position feedback for system integration and status monitoring
- Compact, robust housing suitable for commercial building automation environments
- Designed for use with Siemens Building Technology control systems and compatible third-party controllers
Application
The GMA126.1P is ideal for controlling fresh air, exhaust, and mixed-air dampers in commercial HVAC systems. Its spring-return mechanism ensures the damper defaults to a safe position during power interruptions, making it well-suited for fire/smoke control applications, economizer systems, and energy management installations. The dual auxiliary switches allow downstream equipment or building automation systems to confirm actuator position, supporting advanced sequencing and fault detection.
Why Choose Siemens Building Technology
Siemens Building Technology is a globally recognized leader in HVAC controls and building automation, delivering products engineered for long service life, precise control, and seamless integration. The GMA126.1P reflects Siemens’ commitment to quality and reliability in commercial building environments.
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