Belimo AF24-SR Spring Return Damper Actuator, 24V, 133 in-lb, Modulating

Part number: AF24-SR

A direct-coupled, spring return damper actuator providing a constant torque of 133 in-lb (15 Nm). It operates on a 24V AC/DC power supply and is controlled by a proportional 2-10 VDC signal. The spring return function provides fail-safe operation in under 20 seconds.

This actuator is a component for commercial HVAC systems, used by technicians and building automation contractors for the proportional modulation of air dampers. Its fail-safe spring return is essential for safety applications, such as closing dampers during a power failure to prevent the spread of smoke or to protect coils from freezing.