Agreed. UL is primarily interested in fire safety. A motor powered=20 device is certainly capable of having a fire. --Bob A On 4/3/2014 8:54 PM, Harold Hallikainen wrote: > Use of a certified low voltage power supply gives protection against > electric shock, but does not provide protection against fire. So, safety > testing may still be required. > > Harold > > > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .