Phoenix contact 3 way isolation amplifiers phoenix contact 2814498 the phoenix contact 3 way isolation amplifier mcr c iu 0 dc is ideal for galvanic isolation and conversion of analog standard signals and has the following signal ranges input signal 0 ma 20 ma 20 ma 20 ma output signal 0v 10 v 10v 10 v the amplifier provides electrical isolation of analogue standard signals while the module input and output are supplied via integrated dcdc converters which are electrically isol