morrisonri Posted August 2, 2008 Share Posted August 2, 2008 I am installing a CTB08 into a metal enclosure, and now I am wondering if the heat sink needs to be isolated from the metal box which is also a ground. Does anyone know the answer to this? I would hate to destroy this card. Up to this point I have installed all my other controllers into plastic enclosures so this has not been an issue. Link to comment Share on other sites More sharing options...
cenote Posted August 2, 2008 Share Posted August 2, 2008 I think the two sides need to be isolated if you are using 2 circuits. Beleive it will trip a GFI. If they are shared, I am not sure. Link to comment Share on other sites More sharing options...
morrisonri Posted August 2, 2008 Author Share Posted August 2, 2008 Not taking any chances I isolated the heat sinks from the metal enclosure. Link to comment Share on other sites More sharing options...
Guest wbottomley Posted August 2, 2008 Share Posted August 2, 2008 Nope. It all needs to be grounded.And when you connect the grounds, everything is bonded together. Link to comment Share on other sites More sharing options...
Greg Posted August 2, 2008 Share Posted August 2, 2008 also the metal box could help dissapate some of the heat if it is NOT isolated Link to comment Share on other sites More sharing options...
Anthony in Houston Posted August 2, 2008 Share Posted August 2, 2008 I run 5 of the same controllers and have them all direct mounted to an aluminum base. The base is is also grounded.Anthony Attached files Link to comment Share on other sites More sharing options...
cenote Posted August 3, 2008 Share Posted August 3, 2008 Great to know, nice idea with the aluminum box too. Link to comment Share on other sites More sharing options...
morrisonri Posted August 3, 2008 Author Share Posted August 3, 2008 Thanks for the information I will change my installation. Link to comment Share on other sites More sharing options...
morrisonri Posted October 3, 2008 Author Share Posted October 3, 2008 Update here is a picture of the CTB08, installed in a metal box in the attic. Attached files .jpg"] Link to comment Share on other sites More sharing options...
cenote Posted October 3, 2008 Share Posted October 3, 2008 14g romex wire....What's ya running? Thinking great alarm clock maybe, controling bedroom lighting..... Link to comment Share on other sites More sharing options...
morrisonri Posted October 3, 2008 Author Share Posted October 3, 2008 Could do, this controller runs the eve outlets every thing is hard wired. Link to comment Share on other sites More sharing options...
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