The DC6 RDC-MD – a residual current monitor of DC fault current above 6 mA for Mode-3 EV charging – facilities AC EV chargers to meet the residual current protection request defined in IEC 61851-1 & IEC 60364-7-72, when the device is used together with Type-A RCD. It was globally the first Residual Direct Current – Monitoring Devices certified by TÜV Rheinland in 2019 winter.

The DC6 RDC-MD contains two separated modules with detection module (DC6-iRCS-32 or BRCS-01) and monitoring module (DC6-C1/C2). Residual direct current detection of the charging station takes place via the externally connected detection module. When the residual direct current in the charging station is more than the defined threshold value, the detection module will send the digital trip signal to the monitoring module to switch the relay and active the alarm indication.