Hi Brian, This is correct:
> On Apr 9, 2025, at 15:55, Brian Kunde <bkundew...@gmail.com> wrote: > > Single Phase = 230V~ > Three Phase = 400V 3~ You can indicate the wiring requirements like this: 3P+N+PE for 3 poles + Neutral + PE for a TN-S Y system 3P+PE for 3 poles + PE for a TN-S Δ connected system If you want to use a combined N+PE conductor, then: 3P+PEN for 3 poles + Neutral + PE for a TN-S Y system If you are using a TT system there is no variation in this notation to indicate that, but the installation instructions need to include the driving of a local earthing electrode(s). If you are using an IT system there is no variation in this notation except that neutrals are not normally used with IT configurations which are also almost always Δ-connected. You simply drop the PE or PEN notation, so they become “3P.” Others in this thread have suggested “3W” but this deviates from the standard notation. Doug Nix Kitchener, Ontario, Canada d...@mac.com +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 EMC-PSTC@LISTSERV.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://pses.ieee.org/wp-content/uploads/2024/12/EM-PSTC-List-Rules.pdf 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
