The Belimo AF24US is a 24 V damper actuator for HVAC dampers, delivering 180 in-lb (20 Nm) of torque to position a damper shaft with precision. It is a two-position, spring-return actuator that operates on AC/DC 24 V and uses On/Off control signals to open or close the damper, returning to the spring-set position when power is removed. Designed for direct mounting to damper shafts, it supports straightforward integration into air-handling units, rooftop units, and other HVAC equipment that modulates airflow. Built on Belimo’s AF series platform, it provides compact, robust actuation for reliable two-state damper control in both retrofit and new-install scenarios.
