Siemens Building Technology STP73U 2-Position N/O Electro Thermal Zone Valve Actuator 24 VAC

Siemens STP73U is designed to ensure that HVAC systems are effectively actuated by using a 2-position, normally open model. This means that the actuator is open until it is commanded to close and this is ideal for systems that require only on/off control. Its operating temperature is between 32 °F and 140 °F to allow it to work in different climates the 4 mm stroke length enables it to move enough to open or close valves correctly. When the actuator receives a 24VAC signal, it utilizes electro-thermal technology to generate mechanical motion.