Why deal with two DoCs; one for the power supply (lvd/Emc/rohs) and one for the 
device (Emc/rohs)? You can declare system (device + external power supply) 
under one DoC (lvd/Emc/rohs)

Sent from my iPhone

Peter S. Merguerian
pe...@goglobalcompliance.com
Go Global Compliance Inc.
www.goglobalcompliance.com
(408) 931-3303

On May 15, 2013, at 2:49 PM, "Brian Oconnell" <oconne...@tamuracorp.com> wrote:

> As you have stated, an external power supply that can be considered an
> end-use item is within the scope of the LVD if intended to connect to AC
> mains.
> 
> An external DC/DC converter power supply that can be considered an end-use
> item is not scoped by the LVD, where the input and/or output is not within
> the scope of the LVD or where the end-use item can be considered Class III
> construction.
> 
> The LVD may or may not apply to any equipment connected to the power supply.
> 
> I, myself, am exempt from RoHS and the LVD. As is my dog.
> 
> Brian
> 
> -----Original Message-----
> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Carl Newton
> Sent: Wednesday, May 15, 2013 12:01 PM
> To: EMC-PSTC@LISTSERV.IEEE.ORG
> Cc: emcl...@gmail.com
> Subject: Revisit Old LVD - External PS question
> 
> I'm opening a very old question here, but I'd like to hear some list member
> current views concerning the applicability of the LVD to devices that
> utilize external wall-wort and brick power supplies.
> 
> In this example, an external brick AC/DC power supply is shipped with a
> device with in input rating of +15 V dc.  Clearly the manufacturer would
> have to declare the LVD on the product DoC because they become the
> distributor/importer of the AC/DC power supply within the EU.  However, they
> can rely upon the power supply DoC and CB Report to support their
> Declaration and technical file.  Does the DC rated device also have to be
> considered to be within the scope of the LVD?
> 
> The common thinking among many manufacturers in my experience is that the
> device itself is outside of the scope of the LVD because of the very low
> voltage input rating.
> 
> Thanks in advance for any comments/views,
> 
> Carl
> 
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