Typ2 EV Charger Solar to EV Car Charger 612 V

Most UK families are wired with a PME system (Protective Multiple Earth), where the earth wiring runs to a main supply point connected to a neutral conductor which is earthed at multiple points. These systems have the potential for a rare fault called neutral failure, where an upstream disconnection due to degrading or corrosion could increase the risk of electric shock.

How it works: For TN-C-S systems without grounding at the user's end, when the PEN line to the household is cut off due to a line fault and the rear end of the PEN line is in suspension without repeated earthing, the voltage of the protective ground PE can equal the fire line L voltage.

Without this protection, the shell of the EV in charging could be charged with dangerous voltage. If the leakage current exceeds 30mA, it poses a severe safety hazard; exceeding 100mA can be fatal. Our system detects this to ensure user safety.