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One of the requirements I need for a device is to meet the UL/IEC-60950 standard. On the companies website I am looking at it mentions that "products are assembled and tested in company’s own ISO9001:2015 and IPC-A-610 certified facilities." What are the chances that this product meets the 60950?

(I have reached out to the company as well but just curious what the thoughts were of the community)

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  • \$\begingroup\$ They have nothing do do with each other. Ask for their UL/IEC-60950 certificate for the product! \$\endgroup\$ – winny May 18 '18 at 14:00
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These have nothing to do with one another. You don't learn anything regarding meeting 60950 from their claims.

ISO9001 has to do with internal quality management, and IPC-A-610 has to do with quality/acceptance of PCB assemblies.

UL/IEC-60950 is a safety testing requirement.

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  • \$\begingroup\$ Wrong, correct, wrong and wrong. \$\endgroup\$ – Barleyman May 18 '18 at 13:39
  • \$\begingroup\$ Could you explain Barleyman? Admittedly I am not super familiar with the non-UL standards, so I'm curious where I went wrong. Thanks. \$\endgroup\$ – Jim May 18 '18 at 13:52
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    \$\begingroup\$ I understand what you're saying, however I spent 3 years working at UL on similar standards (not 60950, but other IEC 6-series standards) and we never asked about ISO9001 or IPC-A-610. \$\endgroup\$ – Jim May 18 '18 at 14:05
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    \$\begingroup\$ Also, my understanding is that the OP is asking about buying a finished Widget A from Company X, and asking if Company X having ISO9001 and IPC-A-610 certifications indicates that Widget A meets UL/IEC61010 -- not that he wants them to do any manufacturing of his own product. Maybe I misunderstood. \$\endgroup\$ – Jim May 18 '18 at 14:06
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    \$\begingroup\$ @Jim You are exactly right. This is what I was asking about I am not asking someone to make a custom part just trying to see if their part is compliant with the 60950 standards. I was able to find the companies "Declaration of Conformity" which contained the information I needed. Thank you to everyone for your responses \$\endgroup\$ – Mitch May 19 '18 at 14:40
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Tl;Dr you want your PCB assembler to have ISO9001 and IPC-A-610 certificates and IPC-600 from the PCB fab. These have to do with the supplier actually supplying a product that works, you would be ultimately responsible that you've done due diligence that the product is manufactured to your specifications.

IEC60950 requires a battery of tests to show it's safe, most of which you can actually sidestep by using low voltage (e.g. 24V) external power supply that's IEC60950 rated. You also need to contend with IEC61000 series of standards on RF emissions and immunity but that's another story.


IEC 60950 (now superseded by IEC 62368-1) is a top level safety standard that specifies a range of requirements and tests required to put the CE mark on a product signifying it's safe to use and to sell on market.

Having a proper QA system such as ISO9001 is often part of this but not absolute requirement depending on the exact product nature. You really do want an assembler/fab to have one of these however.

IPC-A-610 is a quality standard of PCB assembly. In basic level it's a standard you can quote to the assembler and they cannot weasel out of rubbish assembly job. There are three classes, "1" is for general equipment but to my mind it's borderline functional, larger misalignments are allowed than you might expect. "2" is for Dedicated installation electronics e.g. customer access portals and the like that require some fault tolerance. This is what I'd usually ask for. Class "3" is for high reliability products, it's nice to have but often suppliers balk at this.

If the supplier does quote this, they usually also have ISO9001 in place and maybe IPC-600 if they also make the PCBs.

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  • \$\begingroup\$ "ISO9001 is often part of this but not absolute requirement" i.e. no such requirement. Same goes for IPC610, it has nothing to do with IEC60950. \$\endgroup\$ – winny May 18 '18 at 13:59
  • \$\begingroup\$ @winny if your product fails in use, literally burning down the house, you may be in trouble if your supplier does not have a certified manufacturing process. They are not in trouble if they can show they've done due diligence as well. In essence is rear-saving excercise but results in real-life safer world. \$\endgroup\$ – Barleyman May 18 '18 at 14:02
  • \$\begingroup\$ Irrelevant for passing IEC60950 or not. \$\endgroup\$ – winny May 18 '18 at 14:04
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    \$\begingroup\$ If the relevant standards for your product don't require a QMS then nobody is going to prison if your suppliers don't use one, calm down. Some do, some don't. For example, FDA requirements require ISO 13485 in additon to 9001. 60950 is all about things like creepage/clearance distances, I can't find any evidence of a QMS requirement. Is it still a good idea to have one? Absolutely. \$\endgroup\$ – Joe Baker May 18 '18 at 17:49
  • \$\begingroup\$ @JoeBaker I'm well familiar with ISO 13485. In fact I'm starting a new job in a month where I'll be working with MDD / IEC 60601 3rd edition again. Good times. QMS is there to help you out when something (or someone!) goes wrong and the fingerpointing begins. And you can't flat out do medical devices without one, at least not in EU. \$\endgroup\$ – Barleyman May 18 '18 at 19:07

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