Siemens Building Technology GGD121.1U 2-Position S/R Fire/Smoke Damper Actuators 142 lb-In 24V

The Siemens GGD121.1U Spring Return Fire/Smoke Damper Actuator is intended for damper actuation in HVAC systems in fire and smoke control service. This actuator is built to provide reliable damper operation in fire and smoke emergencies with a torque rating of and operating on 24V power. The actuator is versatile operating at 50/60Hz, and has a compact, robust, and dependable performance in demanding conditions. The damper features its spring return to default when power is lost for safety purposes to maintain control. Specifically for application on HVAC systems to control airflow for smoke and fire safety this actuator provides efficient and secure control of airflow to prevent the spread of smoke while maintaining safe building environments.