Doug, a quick search through NFPA70 (USA national electrical code) says in article 645 Information Technology Equipment:
645.16 Marking. Each unit of an information technology system supplied by a branch circuit shall be provided with a manufacturer's nameplate, which shall also include the input power requirements for voltage, frequency, and maximum rated load in amperes. I endorse John Woodgate's answer; if in doubt, label it. I'm delighted to see a few familiar names after my long hiatus from this forum. I'm now semi-retired from the industry. Ralph From: Doug Nix <d...@ieee.org> Sent: Wednesday, August 2, 2023 2:24 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Hazard warning labels on panel doors where COTS UPS installed? Colleagues, I have a client who has installed a COTS UPS in an industrial control panel. The UPS is being used to keep the HMI alive in a power outage or if the disconnecting device is switched off. I have scoured the resources that I have, and I can find nothing that requires a label on the outside of the panel to indicate that there is a UPS inside. EN 60204-1:2018 does not address this. I have a copy of EN IEC 62040-1, and it does not require a hazard warning label anywhere. Any guidance you might offer is appreciated. Doug Nix mailto:d...@ieee.org +1 (519) 729-5704 ________________________________________ 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 All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: mailto:msherma...@comcast.net Rick Linford at: mailto:linf...@ieee.org For policy questions, send mail to: Jim Bacher at: mailto:j.bac...@ieee.org ________________________________________ 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
