Hi Ronan, Despite the UL508A Panel Program being a generic program, changing any NRTL labeled product in the field technically void's the mark. However, based on your description of the change, following comes to mind before being able to provide any consultation -
1. What is the function of the push button switch? 2. Why are you removing it? 3. What is the switch rated? If needed Field Evaluation and Labeling can be done and will confirm if your changes are in compliance. Best Regards and Be Safe, John John Allen | President & CEO | Product Safety Consulting, Inc. 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It is the responsibility of the recipient to check that it is virus free. PSC does not accept any responsibility for data loss or systems damage arising in any way from its use. This message is confidential and intended only for the individual to whom or entity to which it is addressed. If you are not the intended recipient or addressee, or an employee or agent responsible for delivering this message to the addressee, you are hereby notified that any dissemination, distribution, or copying, in whole or part, of this message is strictly prohibited. If you believe that you have been sent this message in error, please do not read it. Please immediately reply to sender that you have received this message in error. Then permanently delete all copies of the message. Thank you. From: Ronan Shanley <0000205e1cfd8f16-dmarc-requ...@listserv.ieee.org> Sent: Friday, March 17, 2023 2:23 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Maintaining UL Label when Modifying Electrical Enclosures in the Field [EXTERNAL EMAIL] DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe. 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 [cid:image007.png@01D958E1.AFEA6400] ALERT INNOVATION ronan.shan...@alertinnovation.com<mailto:ronan.shan...@alertinnovation.com> 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 wrong-recipi...@alertinnovation.com<mailto:wrong-recipi...@alertinnovation.com> 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. 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