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MissileStick · 05-15-2009, 06:31 PM

At those dimensions you gave me MPaulHolmes, the case would dissipate a little less at 25C temperature difference. Of course, now that seems extraordinarily high.

25C - 142 watts
20C - 113 watts
15C - 85 watts
10C - 57 watts
5C - 28 watts

This assumes 1/4 inch Lexan – 1/2 inch would dissipate half as much heat.

To me the main point in favor of a lexan (or anything else nonmetallic) case would be the fact that it would be electrically insulative. Of course there's other ways to do that – for instance painting the aluminum case with something hard/nonconductive, like epoxy.

Is the emergency cutoff relay still present? Would grounding out to the case be detectable, leading to a disconnect?

05-15-2009, 06:31 PM	#1268 (permalink)
MissileStick EcoModding Lurker Join Date: Oct 2008 Location: USA Posts: 31 Thanks: 0 Thanked 1 Time in 1 Post	At those dimensions you gave me MPaulHolmes, the case would dissipate a little less at 25C temperature difference. Of course, now that seems extraordinarily high. 25C - 142 watts 20C - 113 watts 15C - 85 watts 10C - 57 watts 5C - 28 watts This assumes 1/4 inch Lexan – 1/2 inch would dissipate half as much heat. To me the main point in favor of a lexan (or anything else nonmetallic) case would be the fact that it would be electrically insulative. Of course there's other ways to do that – for instance painting the aluminum case with something hard/nonconductive, like epoxy. Is the emergency cutoff relay still present? Would grounding out to the case be detectable, leading to a disconnect? Last edited by MissileStick; 05-15-2009 at 06:56 PM..