Many hobs are around 6kw-25 amps ovens are max 3kw-12.5amps but quite likely 2kw-8.3amps so hopefully 37.5amps So if you have a 6mm TWE cable coming from the board with a 40amp fuse & on to a 45amp switch in the kitchen that switches an outlet below the worktops, at that point you want to fit a...