GMX24-MFT-T | Belimo | Damper ActuatorGMX24 MFT T Damper Actuator, multifunctional control 24V non spring return For modulation of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturers specifications. The actuator is mounted directly to a damper shaft up to 1. 05 in diameter by means of its universal clamp. The default parameters for 2 to 10 VDC applications of the MFT actuator are assigned during manufacturing. If necessary, custom versions