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bathroomboy

Installing 8.5kw shower which will pull 37 amps, looking at shower cu with rcd, but it comes with 50a mcb will it be ok to overrate or should I change the mcb to 40a.
 
You would be better of fitting a 32A as mcb should be the same as or lower than the current carrying capacity of the cable as your mcb is meant to protect the cable if I remember correctly thats for 6mm cable or as the post above


Chris
 
You would be better of fitting a 32A as mcb should be the same as or lower than the current carrying capacity of the cable as your mcb is meant to protect the cable if I remember correctly thats for 6mm cable or as the post above


Chris



Hi


Ib should be less than or equal to In, and In should be less than Iz. Not In less than Ib...


Regards
 

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