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Electrical Inspection & Testing Forum
3 Phase Motor 2.5mm 30A Mcb
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<blockquote data-quote="Steve3948" data-source="post: 453786" data-attributes="member: 2497"><p>So today had a call from another contractor asking if a 3 Phase Lift Motor wired in 2.5mm on a 30A Mcb was a Code 2.</p><p></p><p>Cable undersized for fuse rating, should be 20A or cable size increased.</p><p></p><p>Now I replied it's ok from memory, having dealt with this before many moons ago, as across 2 phases 400V its 2 X 2.5mm and not a problem on 30A TP Mcb.</p><p></p><p>He felt this was incorrect.</p></blockquote><p></p>
[QUOTE="Steve3948, post: 453786, member: 2497"] So today had a call from another contractor asking if a 3 Phase Lift Motor wired in 2.5mm on a 30A Mcb was a Code 2. Cable undersized for fuse rating, should be 20A or cable size increased. Now I replied it's ok from memory, having dealt with this before many moons ago, as across 2 phases 400V its 2 X 2.5mm and not a problem on 30A TP Mcb. He felt this was incorrect. [/QUOTE]
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3 Phase Motor 2.5mm 30A Mcb
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