Hi, If a switch contact is rated 0.5A @ 125VAC, what is the correct way to calculate its rating @ 5VDC? Thanks, Colin _________________________________________________________________ Protect your PC - get McAfee.com VirusScan Online http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.