Belimo 24 VAC/DC Proportional Non-Spring Return Damper Actuator, -22° to 122°F, 45"-lb., 95 sec., Includ

For the proportional modulation of dampers in HVAC systems, this BELIMO non-spring return damper actuator is mounted directly to a damper shaft from 1/4” up to 5/8” diameter using the included clamp. Model operates in response to a 2 to 10VDC, or with the addition of a 500 resistor (not included), a 4 to 20mA control input from an electronic controller or positioner. A 2 to 10VDC feedback signal is provided for position indication or master-slave applications. Actuator uses a sensorless brushless DC motor that’s controlled by an Application Specific Integrated Circuit (ASIC). The ASIC can monitor and control the actuator’s rotation and it provides a digital rotation sensing (DRS) function to prevent damage to the actuator in a stall condition.