Siemens Building Technology GMA221.1U 2-Position Control Damper Actuator S/R 62 in-lb 120V

The Siemens GMA221.1U is a two position control damper actuator for controlling airflow in HVAC systems. The dampers are placed precisely in torque produced by its 120V power supply. With its spring return mechanism it is guaranteed as reliable operation and the aluminium alloy housing is tough enough to perform all kinds of conditions. This is quick and uses little electricity also and works well in humid environments. The surface maintains airflow excellence, improving system performance, saving energy economy, and keeping indoor comfort where precise control is required. In an application with dampers, the GMA221.1U allows for effective and even air distribution to produce proper operation in ventilation, heating and cooling systems.