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calculating the amp

 
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raz2104



Joined: 08 May 2007
Posts: 19
Location: dunfermline fife scotland
PostPosted: Sat May 12, 2007 9:17 am    Post subject: calculating the amp Reply with quote
hi vince how do i calculate the voltage to get the correct figure for the mcb ampage! for example if i want to put a 9kw shower in how do i come to the figure for the size of mcb to use. Question

Last edited by raz2104 on Wed Aug 29, 2007 10:15 am; edited 1 time in total
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vince knight
Moderator


Joined: 04 Mar 2004
Posts: 1345
Location: Essex/East London
PostPosted: Sat May 12, 2007 8:32 pm    Post subject: Reply with quote
9000w divide by 240v = 37.5amp

40amp is the best MCB

Vince
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