I see this as either a configuration change or retrofit. My experience is that as long as any changes (mods, substitutions, etc) you make are in a configuration already approved by UL, and your technical files are updated, then the impact should be minimal. Oh, and this should also be done by factory authorized personnel. I would be concerned if this push button were somehow tied to a safety function.
Of course, it's always best to run this by your third party certifier. -Doug Douglas E Powell Laporte, Colorado USA LinkedIn <https://www.linkedin.com/in/coloradocomplianceguy/> (UTC -07:00) Mountain Time (US-MST) On Fri, Mar 17, 2023 at 1:23 PM Ronan Shanley < [email protected]> wrote: > Hi All, > > > > I have a question about maintaining the UL label on electrical enclosures > when modified in the field. We have our electrical enclosures built at a UL > 508A shop. We have a minor change to the design where we are removing a > pushbutton from the front of the enclosure. We will update the design, > provide an updated schematic and other documents, create a procedure for > the field change etc. Will this change impact the enclosure UL label or > require any field evaluation? > > > > Best, > > > > *RONAN SHANLEY* > > *EE* > > > > > > > > *ALERT INNOVATION* > > [email protected] > > *www.alertinnovation.com* <http://www.alertinnovation.com/> > > > This message (including any attachments) may be confidential and > privileged communication to the intended addressee. If you are not the > intended addressee, you have received this message in error. In that case, > please permanently delete this message and notify us at > [email protected] so that we can avoid this > inconvenience in the future. Thank you. > - > ---------------------------------------------------------------- > > 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 > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > ------------------------------ > > To unsubscribe from the EMC-PSTC list, click the following link: > https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 > - ---------------------------------------------------------------- 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 Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1

