kaungw Posted December 30, 2009 Report Share Posted December 30, 2009 1.Does anybody know about the effect on lifetime and MCCB functioning due to the overheat occured at one phase in 3 poles 63A ABB brand MCCB?2.How Can we know and decide to replace MCCB for what kind of overheating condition?3.What is the acceptable temperature (refer to I.R reading data ) for MCCB?In my case, one of the Phase contact got Hot Spot due to the cable cap was REPLACEed together with copper when installation and continuous using for few months. Quote Link to comment Share on other sites More sharing options...
Alex Tsekenis Posted December 30, 2009 Report Share Posted December 30, 2009 Which one is it? T4, 5, 6, 7?http://www.abb.co.uk/product/seitp329/2deffbcd59f95e48c1256ed20037f66d.aspx?productLanguage=us&country=GB&tabKey=2I think the best thing you can do is contact an ABB engineer for support on this. It's free. Quote Link to comment Share on other sites More sharing options...
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