I have a step-up transformer (115V->230V) rated for 100VA that I use for powering various low wattage European appliances. I've had a visitor from Europe use it and overload it. It heated-up quite nicely, but fortunately seems to be undamaged. I'd like to put an inline fuse on the input (i.e. 115V) side to prevent inadvertant overloads by people who don't understand what "you can use it for your hair curler but not for your hairdrier" means.
Does anyone know of a modular unit that has a standard US plug on one side, socket on the other and a modular fuse? Hmm, sounds like I'm trying to build a UK-style plug!