Siemens FDCIO221, S54312-F2-A1 Input/output module (1 input and 1 output) For the connection of 1 circuit of potential-free, make-or-break contact for the indication of technical states (e.g

Siemens FDCI221, S54312-F1-A1 Input module (1 input) For the connection of 1 circuit of potential-free make-or-break contact for the indication of technical states (e.g. door or ventilation

Siemens FDCL221-M, S54312-F6-A1

Siemens FDB202, S54319-F3-A1

Siemens HI722, S54310-F3-A1 Heat detector (static) Suitable in areas, in which temporary high variations in temperature arise. Measures the operating temperature, when the maximum temperatur