LMX120-SR-F | Belimo | Damper ActuatorConfigurable, Damper Actuator, 45 in lbs [5 Nm], Non fail safe, AC 100 240 V, DC 2 10 V For proportional 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 from 1 4 up to 5 8 in diameter by means of its universal clamp. Shafts up to 3 4 diameter can be accommodated by an accessory clamp. The actuator operates in response to