before we changed landing gear brand, we had an inline breaker installed--no more fuses and a short wait if breaker tripped which it never did. Even the dealer that sold us the unit blew two fuses loading it onto our truck. They said it happens a lot and to carry extra fuses. Bad design by Keystone, but it all goes along with the total poor landing gear that is standard equipment. Why don't they charge a little more for the unit and install a better landing gear. Oh, it must be because they figure in a year that it's not their problem.