Electrothermal Actuator Siemens STA63  is a thermal modulating actuator designed for compatibility with a wide range of equipment and applications. It features a standard-length cable for models with connecting cables, while models without cables can be paired with suitable options found in the Accessories/Connecting Cables section. The actuator uses a spring mechanism to retract its stem and open the radiator valve in response to a DC 0–10 V control signal, with the stem position corresponding to the signal level. In the event of a power loss, the valve automatically closes. Making STA63 a versatile solution for radiator valve control in various HVAC systems.

Applications: Hydraulic Pumps, AHU, BMS, HVAC, Radia Frequency Switches, Medical Facilities, Greenhouses.