Siemens STP121.40L10, S55174-A221 for radiator valves and floor heatingElectrothermal actuators, stem extended in a deenergized state (NC) for 2-position and quasi-proportional control of heating...

Siemens STP121.65L20, S55174-A207 Thermal Actuator AC/DC 24V NO 6.5mm 2m on/off for small valvesElectrothermal actuators, stem retracted in

Siemens STP121.65L10, S55174-A203 for small valvesElectrothermal actuators, stem retracted in a deenergized state (NO) for 2-position and quasi-proportional control of heating systems, chilled...

Siemens STP73, S55174-A102 Replaced by STP121.65L10 Electrothermal actuator, AC/DC 24 V, NO, 2P, 1 m

Siemens RDG100T, S55770-T159 Replaced by Siemens RDG200T Room thermostat, AC 230 V, for fan coil units and universal applications, 7-day time switch, vertical

Siemens ALI20VBI61Datasheet

Siemens LOA36.171A27 Oil burner control, 2-stage, t1=13s, TSA=10s, t3n=15 Datasheet

Siemens WRI982 Consumption data interface, S55621-H112 The consumption data interface collects consumption (meter) data and communicates these data using KNX RF directly to the central apartment un