John, It appears 60936 may be withdrawn, try EN 132400. In any case, I believe filters are generally safety certified without use of MOVs, not mandatory. I have asked vendors to add these to a custom filter and to the requirements of other product standards such as EN 60950, EN 61010-1 or EN 50178; while specifying the category. IEC 60384-14 does cover surge capability of component capacitors.
I also do not see a connection to surge for EMI filters except by virtue of the capacitors used. To learn about this generally takes a little digging with your supplier. I would think OV Cat II would be the minimum. Hope this helps a little. Doug Douglas E Powell http://www.linkedin.com/in/dougp01 http://www.linkedin.com/in/dougp01 -----Original Message----- From: John Woodgate <[email protected]> Date: Sun, 16 Dec 2012 22:37:24 To: <[email protected]> Reply-To: John Woodgate <[email protected]> Subject: Re: [PSES] Why use an MOV? In message <1745841055-1355694284-cardhu_decombobulator_blackberry.rim.net-247462401 [email protected]>, dated Sun, 16 Dec 2012, [email protected] writes: >The susceptible components in a filter are the "Y" and "X" capacitors. I am quite up to speed on that. My question applied to the filter as a whole. I didn't find any relevant test in any Part of IEC/EN 60939. -- OOO - Own Opinions Only. See www.jmwa.demon.co.uk The longer it takes to make a point, the more obtuse it proves to be. 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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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]> - ---------------------------------------------------------------- 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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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]>
