On Tue, Jan 6, 2009 at 7:37 AM, Forrest W. Christian wrote: > I'm looking for what the minimum clearances are for traces on a circuit > board which will carry 120 or 240VAC. This is essentially for the > relay contacts which may be field wired to either 120 or 240V. > This will depend on the device and the standards applied. Different standards will have different requirement. Xiaofan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist