141MRS750881-MUMRemote Monitoring and Control UnitTechnical Reference ManualREC 5233.2. Hardware versionsThe REC 523 unit is available in several versions with varying hardware equipmentcorresponding to different uses in the distribution network (such as branch, normalopen point, and so on) of the REC 523 unit. See the following table.Table 3.2.-1 REC 523 hardware versionsHW versionsREC 523032/037 AAA, CAA033/038 AAA, CAA034/039 AAA, CAA054/059 AAA, CAAaa. The HW versions 054/059 AAA, CAA is only included in REC 523 revision F. 060/065 AAC, CACbb. Not included in REC 523 revisions A and B. Note also that the HW versions 031/036 AAC, CACwere only included in REC 523 revisions A and B.061/066 AAA, CAAb062/067 AAA, CAAbAnalogue interfaceSensor channelsCurrent sensor - - - -9- -Voltage divider - - - - - -TransformersCurrent Transformer 0.2/1 A - - - 1 - - -Current Transformer 1/5 A 3 3 4 4 - 6 3Voltage Transformer 100 V - 3 - 4 - 3 6Voltage Transformer 230 V - - 3 - - - -Digital inputs 15 15 15 15 15 15 15Power outputs, double-pole 2 2 2 2 2 2 2Signal outputs (NO) 3 3 3 3 3 3 3Signal outputs (NO/NC) 4 4 4 4 4 4 4IRF outputs 1 1 1 1 1 1 1
