Series: RCMP20-01

The RCMP20-01 series is a residual direct current monitoring module (RDC-M module) that monitors ground-fault, residual, or leakage currents in single-phase or multi-phase installations. It is suitable for integration into Mode 3 electric vehicle charging systems in compliance with IEC 62955. Fault currents in ac and dc may occur in EV charging stations. Common Type A RCDs do not detect dc currents, and this type of fault can blind the protection device, leaving users exposed to electrical shock. Installing the RCMP20-01 series as a dc fault sensor in Mode 3 charging stations ensures proper protection when used in combination with a Type A RCD. Permanently connected ac electric vehicle charging stations are considered Mode 3 charging according to IEC 61851-1 and IEC 60364-7-722. The RCMP20-01 series monitors residual dc currents that Type A RCD protection does not detect. The RCMP20-01 series continuously monitors dc residual currents. When fault current exceeds threshold values, the device sends a trip signal. Coupled with an appropriate switching device, the module meets RDC-M module requirements.