Upgrade power on electric shower

want to upgrade shower from 8.5kw to 10.5kw is that ok ? what to look out for re electrics

 

Probably better in the electrics forum but cable size, route and rcd/mcb/rcbo requirements are but a few.

 

You will need a 45A or 50A over-current device plus RCD, and

depending on the cable installation method, 6mm² or 10mm².

 

What do you have installed for this circuit?

 

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