Neutrik NAC3FCB AC Powercon Cable End-Out, Gray Locking 20 A / 250 V ac appliance coupler; The powerCON is a connector without breaking capacity, i.e. the powerCON should not be connected or disconnected under load or live! 3 contacts for line, neutral and premating safety ground power-in (blue) and power-out (grey) versions with different keying to avoid the possibility of intermating