Hello Brian, there might also be specific requirements for markings and instructions in the applicable product safety standard, e.g. if your equipment is in the scope of IEC/EN/UL 60335. Clause 7.3 requires:
“Appliances having a range of rated values and which can be operated without adjustment throughout the range shall be marked with the lower and upper limits of the range separated by a hyphen. NOTE 1 Example: 115-230 V: The appliance is suitable for any value within the marked range (a curling iron with a PTC heating element or an appliance incorporating an input switch mode power supply). Appliances having different rated values and which have to be adjusted for use at a particular value by the user or installer shall be marked with the different values separated by an oblique stroke. NOTE 2 Example: 115/230 V: The appliance is only suitable for the marked values (a shaver with a selector switch). NOTE 3 This requirement is also applicable to appliances with provision for connection to both single-phase and multi-phase supplies. Example: 230 V~ /400 V 3N~ : The appliance is only suitable for the voltage values indicated, 230 V~ being for single-phase, a.c. operation and 400 V 3N~ for three-phase, a.c. with neutral operation (an dishwasher appliance with terminals for both supplies).” So in this case, replacing the hyphen by “to” is actually a violation of the product safety standard. Instead of a full space, I prefer to use a thin space between numbers and unit indicator (https://en.wikipedia.org/wiki/Thin_space). If symbols are used, clause 7.6 requires to use symbols (e.g. 5031, 5032) from IEC 60417 (https://webstore.iec.ch/preview/info_iec60417_DB.pdf). Kind regards, Bernd Von: Lesmeister, Glenn <[email protected]> Gesendet: Donnerstag, 31. Januar 2019 21:02 An: [email protected] Betreff: Re: [PSES] Source for Nameplate Rating Nomenclature There is an IEC standard, IEC 61293 that covers this. https://webstore.iec.ch/publication/5151 Regards, Glenn Lesmeister Product Regulatory Compliance Hewlett Packard Enterprise Company 11445 Compaq Center Dr W M/S 510101 Houston, TX 77070 Tel: 1 (512) 319-0591 [email protected]<mailto:[email protected]> From: IBM Ken [mailto:[email protected]] Sent: Thursday, January 31, 2019 1:54 PM To: [email protected]<mailto:[email protected]> Subject: Re: [PSES] Source for Nameplate Rating Nomenclature To pile on to Brian's question, is there guidance on how to indicate Delta or Wye connection types on a label (that are universally recognizable)? I think using "3W +PE" or "4W +PE" might not be descriptive in all cases, especially if your equipment connects to fewer than three phases of a three-phase distribution system... -Ken On Thu, Jan 31, 2019 at 2:44 PM Kunde, Brian <[email protected]<mailto:[email protected]>> wrote: What is the Source Document for the Nameplate Voltage, Current, etc. Rating Nomenclature (if there is one)? Examples one might find on a typical electronic equipment; 115/230V~ 50/60Hz 8/4A 100-120/220-240V~ 50/60Hz 8/4A We try to match this information in our User’s Manual. However, our Technical Writers are telling me that according to International Writing blah blah blah, we can no longer use dashes (replace with the work “to”), and that we have to have a space between numbers and the unit indicator. So here is what they want in the manual; 100 to 120 / 220 to 240 V~ 50 / 60 Hz 8 / 4 A I have no objections to these new rules in the manual, but as far as the Nameplate label goes, we are always tighting for space and as you can see the “new way” uses up a lot more space than the old way. So my question is, is there a document, standard, etc. that dictates exactly how the Rating should appear on a Nameplate Label/plate? Is there anything wrong or confusing about the Old Way. Thanks very much for any assistance. The Other Brian (I hope I don’t get kicked off for spoof emails again). ________________________________ LECO Corporation Notice: This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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