A client has a product, to be used by consumers typically in a bedroom or child's nursery, which has a microcontroller and is Wi-Fi enabled so it can present data to 'the cloud' and interact with a mobile phone 'app' to change some parameters on the device. We have been asked by the client with help in sourcing a power supply for it from Far East sources. They want a 'wall wart' type plug in device with a 2 metre lead to a jack plug. The product requires 5V DC up to 1A and has a jack socket DC input. Cost is, of course, a key driving factor but there are some very keen priced items available out of the FE.
Ignoring 62368-1 for now, as there is still just over a year to go before this becomes mandatory and it appears the majority of 'cost effective' PSU manufacturers are not up-to-speed with this standard yet. They probably will wait till the last minute, or relying on the 'get-out' 4.1.1 clause in 62368-1. The question is what standard should the PSU meet? 60950-1 or 60335-1? 60950-1 is for IT equipment, 60335-1 is Household and similar electrical appliances. Both standards might apply. If it was a laptop power supply 60950-1 would even though the laptops are sold and used in the home. One potential PSU manufacturer, however, does claim both 60950-1 and 60335-1 for the same product. Is that possible with one design? I know this might also spark a debate about risks of FE manufacturers, conformity of production and so on like the excellent blog post here https://www.unit3compliance.co.uk/tag/power-supply/ We have a presence on the ground in the FE to verify any manufacturers and all the three potential suppliers identified so far have listings on TUV or Intertek and have also provided conformity documentation supported by legitimate third parties. Any thoughts welcome. Thanks for reading. Regards, Matthew Wilson Technical Director GB Electronics (UK) Ltd matthew.wil...@gbelectronics.com https://gbelectronics.uk +44 (0)1903 244 500 Ascot House//Mulberry Close//Woods Way Goring-by-Sea//West Sussex//BN12 4QY//UK Disclaimer: This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please delete it from your system, do not use or disclose the information in any way and notify the sender immediately. The contents of this message may contain personal views which are not the views of the company, unless specifically stated. GB Electronics (UK) Ltd is a company registered in England and Wales under number 06210991. Registered office: Ascot House Mulberry Close, Woods Way, Goring By Sea, West Sussex, BN12 4QY. - ---------------------------------------------------------------- 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: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
