The way people put these swiches on High performance boats is that they put a bullet connector in one part of thier hull, then another one near the first one, and then a connector to connect this. This would be able to handle more than 45A, and also if your so fancy you could build a mounting box and well have it plug it in, and turn it off and wtvr. Hopefully taylor will chimein and give some pics of his setups with it.
Dan