On Saturday 08 December 2012 20:19:14 andy pugh did opine: > On 9 December 2012 01:06, Gene Heskett <[email protected]> wrote: > > push button reset thermal gizmo's with a tolerance and repeatability > > that are horrifyingly sloppy. > > Thermal or thermal/magnetic? > My guess is pure thermal, heavily overloaded response times are still in the hundreds of milliseconds.
> An MCB ought to be able to do the job, even if you dismantle it to > make the useful parts fit (though they normally include things like a > chimney and an arc-extinguisher) Both should be a 100% requirement. Having seen the fire rolling across the floor from a GE AK-225 interrupting a 400 amp/phase 230 delta circuit when I tested it without the arc quenchers mounted, was, shall we say, educational. Those arc quencher cages actually work! ;-) Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! BOFH excuse #11: magnetic interference from money/credit cards I was taught to respect my elders, but its getting harder and harder to find any... ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
