triple poled mcb

[thepprentice]

I simple question i'm sure but I thought i'd better check just incase. On for example a 63a triplepoled mcb, does each pole have a rating of 63A or idoes the mcb as a whole have a rating of 63A.

 

[holmslaw]

..

 

[industryspark]

yep, 63A per pole. just think of it as 3 single mcbs connected together by the 'switch'. a fault in one phase will disconnect all 3 conductors.

 

[ban-all-sheds]

I think if there are 3 then it should be done by majority voting.