In message <[email protected]>, dated Fri, 18 Sep 2009, "Aldous, Scott" <[email protected]> writes:
>The interrupt rating for fuses is generally much higher than a PTC max >current rating. 5000A is not uncommon, whereas a PTC will have >something more like 40A. 20 mm x 5 mm fuses (IEC 60127) L type (glass body) have a breaking capacity of 35 A in most current ratings. H type (ceramic body) have 1500A capacity in most ratings. There is, in theory, an E type with an intermediate rating, but they seem to be difficult to obtain. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Things can always get better. But that's not the only option. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
