Thanks for the info so far. I used to have the EIN tables someplace, but can't locate them anymore. This is for a current sensor board, using Allegro hall sensors so there will be mix of DC and AC on this board. The enviroment will be inside a computer room so no dirt/dust to speak of. Peter wrote: On Tue, 28 Feb 2006, alan smith wrote: > Anyone (probably in Europe) happen to know what the creepage/clearance > is for 415VAC on a PCB? For what duty class (environment) ? There is data for this on the web and I have researched it before. I will find it tomorrow if you have no answers till then. Peter -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --------------------------------- Yahoo! Mail Bring photos to life! New PhotoMail makes sharing a breeze. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist