SIPLUS HCS4000 peripheral module U/I. For measuring voltages and currents for: -Mains voltage compensation for SIPLUS HCS4200 -Phase current monitoring -Phase voltage monitoring SIPLUS HCS4000 peripheral module U/I. For measuring voltages and currents for: -Mains voltage compensation for SIPLUS HCS4200 -Phase current monitoring -Phase voltage monitoring SIPLUS HCS4000 peripheral module I/O4000 U/I SIPLUS HCS4000 peripheral module U/I. For measuring voltages and currents for: -Mains voltage compensation for SIPLUS HCS4200 -Phase current monitoring -Phase voltage monitoring SIPLUS HCS4000 peripheral module I/O4000 U/I