The 2810939 is a 17.5 x 99 x 114.5mm 3-way Isolation Amplifier used to electrically isolate and convert analogue signals. The device provides electrical isolation of analogue standard signals. The module input and output are supplied via integrated DC/DC converters, which are electrically isolated from the mains. The required auxiliary voltage is indicated via a green power LED. This clearly indicates whether or not auxiliary voltage is available. The MCR module ensures the safe decoupling of a sensor circuit from the evaluation circuit and also prevents the negative effects of several sensor circuits connected with one another. 3-way isolation enables the universal use of modules both locally and close to the control system for signal conversion and electrical isolation, as well as on the transmission path for jumpering high load resistors. Signals are converted by an inductive transmission method.