The SYS-102 function unit comprises all the system components needed for installing a 3-phase switchable single charging tap-off for 13 A/400 V or 32 A/400 V in accordance with IEC 61851 charging mode 3. The CM-100 charging controller used communicates with the electric vehicle and controls the switching components. The SYS-102A can be operated with a 13 A or 32 A charging cable. It has several auxiliary functions (power measurement, electric heating and control, interlocking of the charging plug).