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Do-It-Yourself (DIY) Question & Answer Forum
Electrical supply upgrade
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<blockquote data-quote="Evans Electric" data-source="post: 443281" data-attributes="member: 1408"><p>All that is very true , HRC fuses especially , will carry high currents for ever. </p><p></p><p>I was asking after an obsolete MCB on here , ( forget the make now , ) for a 9.5KW shower . We installed an RCD and run it up on an existing 30A MCB , couldn't get hold of anything larger . I was looking for a 40A . </p><p></p><p>As Sidey said at the time , with the time / current characteristics ...given the time a shower takes it will have to do. And about 2 years later I've had no call back . </p><p></p><p>So thats a a 9.5KW shower @ 41A running on a 32A MCB with no problem .</p></blockquote><p></p>
[QUOTE="Evans Electric, post: 443281, member: 1408"] All that is very true , HRC fuses especially , will carry high currents for ever. I was asking after an obsolete MCB on here , ( forget the make now , ) for a 9.5KW shower . We installed an RCD and run it up on an existing 30A MCB , couldn't get hold of anything larger . I was looking for a 40A . As Sidey said at the time , with the time / current characteristics ...given the time a shower takes it will have to do. And about 2 years later I've had no call back . So thats a a 9.5KW shower @ 41A running on a 32A MCB with no problem . [/QUOTE]
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