http://disqus.com/by/billhucker/enFri, 22 May 2009 07:54:05 -0000(u'http://ecmweb.com/mag/electric_basics_contactors/',%209788177L)#comment-9788177<p>you really didnt answer the question about the therography scan. Good info about cotactors. yes you can detect aheat problem with an i/r camera, but you have to really know what the picture tells you. Then you need to know amps, heater size, voltage, motor size and the correct wire size. Most of what i have found doing thermography has been loose wires on the load side, and the wrong size of heaters installed</p>144000Fri, 22 May 2009 07:54:05 -0000