Abstract: An adaptor is described for an electrical AC wall socket for providing a fused link between the wall socket and an electrical appliance or the like. The adaptor includes a male plug extending from a housing for mating with the wall socket for providing electrical connection therewith. A female plug is provided in the housing and is linked to the male plug by at least one fuse. The fuse or fuses are mounted on the housing by plug-in connectors to permit the fuses to be readily removed and replaced. Each of the fuses is contained in its own housing and is visible therein through a transparent window. The fuse housings are accommodated in recesses in the adaptor housing.