Danfoss 193B-1606 ARA639 Proportional Actuator with Feedback and Selectable Speed

The Danfoss 193B-1606 ARA639 Proportional Actuator with Feedback and Selectable Speed, is a highly advanced device meant to realize an upgrade of control in HVAC systems. It works on 24 VAC. Precision engineered to match even the slightest modifications in dampers and valves, the device is competent enough to handle extreme temperatures between -20°C and +50°C. ARA639 is the one having proportional control with incorporated feedback; hence, it remains constantly changing its position in real time by input and feedback. That is how it keeps maintaining such an accurate HVAC environment critical for applications requiring continuous control over temperature and air quality.