This ABR2 input interface module is part of the range Zelio interfaces ABR/ABS. It is supplied in the form of slim compact module, 9.5 mm wide. It is designed for switching input signals to a processor and is characterized by its high degree of contact reliability, less than 1 fault per 100 million operating cycles at 17 V dc, 5 mA. An assured immunity to current leakages less than 2 mA, and a wide coil voltage range (0.7 to 1.25 Un). It is based on contactor technology and is notable for its excellent adaptation to industrial environments, ensured by the fact that it conforms to the most recent IEC 947-5-1 standards.