I'm not unsure. Class A is for heavy industry, powered from MV or higher, with 
no broadcast receivers likely within 30 m.
 
The real difference between Europe and the Americas is that in Europe, there is 
a vain attempt to prohibit the use of Class A devices out of industrial areas, 
whereas in the Americas it is recognized that this can (fairly rarely) occur 
and requires the *user* to be warned accordingly.
 
The attempt to prohibit is vain because the *user* is not addressed by the 
legislation, and unless actual interference occurs, the transgression passes 
unnoticed. The 'prohibition' also results in no requirement for warning notices 
to the user – a 'shot in foot' result.
 
With best wishes DESIGN IT IN! OOO – Own Opinions Only
 <http://www.jmwa.demon.co.uk/> www.jmwa.demon.co.uk J M Woodgate and 
Associates Rayleigh England
 
Sylvae in aeternum manent.
 
From: Kortas, Jamison [mailto:jamison.kor...@ecolab.com] 
Sent: Tuesday, October 18, 2016 8:01 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Criteria for determining industrial vs. non-industrial for 
EMC testing purposes
 
Thanks all – at least I am not the only one unsure. 
 
I am trying to establish a set of criteria that I can ask our engineers and 
marketers that will determine the classification. A decision tree, if you will. 
 This arose from a device that met the less stringent criteria, but not the 
more stringent and then what to do. To prevent the need to debate this topic 
over and over, I was hoping to establish a go forward approach.  Ideally, that 
approach would be “design for both industrial AND non-industrial and be done 
with it.” However, other factors are at play than just my druthers.
 
-Jamison
 
From: John Woodgate [mailto:jmw1...@btinternet.com] 
Sent: Tuesday, October 18, 2016 12:44 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> 
Subject: Re: [PSES] Criteria for determining industrial vs. non-industrial for 
EMC testing purposes
 
For Europe, the sources are the Generic standards, which are substantially 
consistent with CISPR 11.
 
With best wishes DESIGN IT IN! OOO – Own Opinions Only
 
<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.jmwa.demon.co.uk_&d=DQMFaQ&c=clRTYxLjfWTYQkksq4Trqw&r=SuXR4v_cWDGps50Ob7OgG3eGvjdtolb5h84QBM8NxmY&m=YBc-OAqaIXpaBu7LDEilUSP7k5HwjSK9Dpuedr-cf0o&s=Tw7R0rvcEmoCGo36ftzkzv1jvoR_Bk-evzNbxvU8NuM&e=>
 www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England
 
Sylvae in aeternum manent.
 
From: Doug Nix [mailto:d...@ieee.org] 
Sent: Tuesday, October 18, 2016 5:25 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> 
Subject: Re: [PSES] Criteria for determining industrial vs. non-industrial for 
EMC testing purposes
 
My understanding has always been based on the Class and Group designations in 
CISPR 11 / EN 55011 for ISM equipment (based on the 2009 edition):
 
5.3 Division into classes
Class A equipment is equipment suitable for use in all establishments other 
than domestic and
those directly connected to a low voltage power supply network which supplies 
buildings used
for domestic purposes.
 
Class A equipment shall meet class A limits.
Warning: Class A equipment is intended for use in an industrial environment. In 
the
documentation for the user, a statement shall be included drawing attention to 
the fact that
there may be potential difficulties in ensuring electromagnetic compatibility 
in other
environments, due to conducted as well as radiated disturbances.
Class B equipment is equipment suitable for use in domestic establishments and 
in
establishments directly connected to a low voltage power supply network which 
supplies
buildings used for domestic purposes.
Class B equipment shall meet class B limits.

The key in all of this is the source of power supply for the equipment. If the 
equipment is supplied from mains that are shared with domestic establishments, 
then it must meet Class B requirements IMO.
 
If the equipment is intended for industrial use, i.e., Class A, where the power 
supply from the mains is not shared with domestic establishments, then Class A 
performance is acceptable.
 
The deciding factor is the sharing of the supply with domestic establishments. 
If a location is fed from its own substation and there are no dwellings 
supplied from that substation, it’s an industrial location, and therefore Class 
A.
 
Doug Nix
d...@ieee.org <mailto:d...@ieee.org> 
+1 (519) 729-5704
 
On 18-Oct-16, at 08:44, Kortas, Jamison <jamison.kor...@ecolab.com 
<mailto:jamison.kor...@ecolab.com> > wrote:
 
Good Morning,
 
What do you use for criteria when reviewing the intended environment in which a 
device will be placed to determine if it is industrial or non-industrial? I 
have seen and read varying opinions on what criteria to use.
 
It ranges from a transformer isolated factory to the nature of the other 
products in the immediate vicinity (a mechanical room in a grocery store = 
industrial due to the equipment in its immediate environment).
 
I am familiar with some of the definitions in places, but am not so sure that 
those are what are typically followed in practice.
 
I appreciate any thoughts. 
 
Thank you.
 
 
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