Siemens AV63, S55174-A165

Siemens STA121.65L20, S55174-A205 Thermal Actuator AC/DC24V NC 6.5mm 2m on/off for radiator valves, small valves and Combi valvesElectrothe

Siemens STP121.40L10, S55174-A221 Thermal Actuator AC/DC 24V NO 4.0mm 1m on/offfor radiator valves and floor heatingElectrothermal actuators, stem retracted in a deenergized state (NO) for 2-position...

Siemens STP321.40L10, S55174-A220 for radiator valves and floor heatingElectrothermal actuators, stem extended in a deenergized state (NC) for 2-position and quasi-proportional control of heating...

Siemens STP161.40L10, S55174-A223 for radiator valves and floor heatingElectrothermal actuators, stem retracted in a deenergized state (NO) for 2-position and quasi-proportional control of heating...

Siemens AL431, S55174-A168 Theft protection Tamper-proof fitting to prevent dismantling of the actuator HS Code: 8