Alre-it actuator "Stella" ZBOOA-010.185 Manufacturer :Alre-it Designation :Actuator "Stella" 230V Type :ZBOOA-010.185 Version :filled with wax Connection to valve :M30 x 1.5 Mains voltage :230 V AC Function :normally closed (NC) Cable length :1 m Stroke length :3.5 mm Colour :grey Ambient temperature :0...50 °C Rated power :17 VA Protection class (IP) :IP54 Length :53.1 mm Width :47 mm Height :74.2 mm Alre-it actuator "Stella" ZBOOA-010.185: more details Stella&quot - the intelligent autonomous electrothermal actuator 230 VAC NC for automatic adaptive hydraulic balancing of the heating circuits of a heating circuit manifold in surface heating and cooling systems. Sensors on the flow and return pipes measure temperature differences and an algorithm continuously calculates the required temperature spread and the corresponding valve position. Electrolessly closed and with hinged lever for relieved unscrewing or for electroless manual opening of the thermostatic valve. With integrated flow temperature limiter. , EAN: 4050528077417.