Replacing gas range with an electric range. There was formerly an electric range hard wired and the junction box has two black and one aluminum wires all 4-5mm diameter. The circuit breaker is 50A and the stove I want to buy is rated at 40A. Your receptable charts indicate a 3 wire receptable is for 30A. Is there a 3 wire receptable I can install? Homedepot deliver/install requires a receptable to be there on delivery.