Proximity Pilot

A proximity pilot (PP) is a pin connector on EV charging cables and is a safety mechanism that ensures the charging cable is properly connected before power is delivered.

Also known as the "plug present" pin, the proximity pilot is one of five pins on a type 1 connector and one of seven pins on a type 2 connector. It works by signalling to the electric vehicle charger that the charging cable is securely connected and receiving power. If the connector is not connected properly the proximity pilot will disable charging and stop sending power to the vehicle as a safety precaution.