The CC-U/RTDR is a temperature signal converter from the CC-U range. This converter, with relay outputs and with 3-way electrical isolation, for RTD sensors (PT100), operates with a rated control supply voltage of 110-240 V AC and provides pluggable connecting terminals. 5 input temperature ranges as well as open- or closed-circuit operating principle can be configured by means of directly accessible lateral DIP switches. This converter has 2 threshold relay outputs with one c/o (SPDT) contact each. The threshold values and the respective hysteresis can be adjusted independently from each other with front-face potentiometers. Applied supply voltage is displayed by a green LED and two yellow LEDs display the state of the output relays.