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Do-It-Yourself (DIY) Question & Answer Forum
Swapping an MCB on a Hager Consumer Unit
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<blockquote data-quote="ProDave" data-source="post: 415925" data-attributes="member: 6969"><p>I find the suppliers ratings are a little "optomistic"</p><p></p><p>I installed a 10KW shower just last week, and the actual current that it draws I measured at 37 amps so it is fine to stay on a 40A mcb, so you could well find your 40A mcb is still okay.</p><p></p><p>But you DO need to verify what size cable is in use before you do anything.</p><p></p><p>A lot can go wrong if you get shower wiring wrong so this is not really a job for an inexperienced DIYer.</p></blockquote><p></p>
[QUOTE="ProDave, post: 415925, member: 6969"] I find the suppliers ratings are a little "optomistic" I installed a 10KW shower just last week, and the actual current that it draws I measured at 37 amps so it is fine to stay on a 40A mcb, so you could well find your 40A mcb is still okay. But you DO need to verify what size cable is in use before you do anything. A lot can go wrong if you get shower wiring wrong so this is not really a job for an inexperienced DIYer. [/QUOTE]
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Swapping an MCB on a Hager Consumer Unit
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