OP
baldsparkies
If you clamp test that shower supply I think you will be surprised to see how your load in amps will differ from the rating plate on the shower stating 10.5 kw.
Not to different from the way BHP is given for an engines output ie horsepower read from the crank is very different to rear wheel horsepower.
Try it !! I think you will find the 40A is fine.
Not to different from the way BHP is given for an engines output ie horsepower read from the crank is very different to rear wheel horsepower.
Try it !! I think you will find the 40A is fine.