RV WAS PARKED AND WAS PLUGGED INTO SHORE POWER. AN ELECTRICAL CONNECTOR IN THE UNDERBELLY MELTED. THIS CONNECTOR IS USED BETWEEN ROMEX CABLE FROM THE SUPPLY SIDE AND THE OUTLET WHICH IS FEED WITH SO CORD. THERE WAS NO LOAD ON THE OUTLET WHICH WAS CONNECTED TO THE CONNECTOR AT THE TIME IT FAILED. THE FIRST 2 PICTURES ARE OF EACH SIDE OF THE CONNECTOR WHICH FAILED. THE THIRD PICTURE IS THE PLASTIC BARRIER UNDER THE FLOOR WHICH MELTED.