Re: [PSES] Hazard warning labels on panel doors where COTS UPS installed?

[Stultz, Mark]

Wouldn't this fall under the requirement from 60204-1 clause 5.3.5 for Excepted 
Circuits?
"Permanent warning label(s) shall be appropriately placed in proximity to the 
operating means of the supply disconnecting device to draw attention to the 
hazard"

Best regards,

Mark Stultz | CMSE(r) | Sealed Air | AUTOBAG(r) brand Equipment | Streetsboro, 
OH | 330-342-2402

From: Doug Nix 
Sent: Wednesday, August 2, 2023 5:24 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Hazard warning labels on panel doors where COTS UPS installed?


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Colleagues,

I have a client who has installed a COTS UPS in an industrial control panel. 
The UPS is being used to keep the HMI alive in a power outage or if the 
disconnecting device is switched off.

I have scoured the resources that I have, and I can find nothing that requires 
a label on the outside of the panel to indicate that there is a UPS inside. EN 
60204-1:2018 does not address this. I have a copy of EN IEC 62040-1, and it 
does not require a hazard warning label anywhere.

Any guidance you might offer is appreciated.

Doug Nix
d...@ieee.org
+1 (519) 729-5704



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Re: [PSES] Hazard warning labels on panel doors where COTS UPS installed?

[John Woodgate]

You could decide not to search, just put a label on anyway. I looked at 
the Preview of IEC 60947-1, but did not find anything. There is a 7th 
edition in preparation.


On 2023-08-02 22:24, Doug Nix wrote:

Colleagues,

I have a client who has installed a COTS UPS in an industrial control 
panel. The UPS is being used to keep the HMI alive in a power outage 
or if the disconnecting device is switched off.


I have scoured the resources that I have, and I can find nothing that 
requires a label on the outside of the panel to indicate that there is 
a UPS inside. EN 60204-1:2018 does not address this. I have a copy of 
EN IEC 62040-1, and it does not require a hazard warning label anywhere.


Any guidance you might offer is appreciated.

Doug Nix
d...@ieee.org
+1 (519) 729-5704



This message is from the IEEE Product Safety Engineering Society 
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Re: [PSES] Hazard warning labels on panel doors where COTS UPS installed?

[James Asbury]

Hello,

Couple of thoughts.  We might consider the UPS to be a second power source
for the machine, which may warrant signage (multiple power sources).  Or,
similar to condensation heaters for machine enclosures that are powered
from the disconnect mains, in the past we’ve added signage to indicate
there is live power in the machine even when the disconnect is turned off.
I don’t have chapter and verse handy, but NFPA79 and UL508A may have
guidance.  To be transparent, my focus is more North American and I do not
have very much experience with EN standards.



This is my first post.  You have all taught me a great deal through this
forum, and this is my small attempt to help pay it back.  Hope this is
useful.



Thanks,

James



*James Asbury*

Electrical Engineering Manager

Innovation and Development

Sealed Air
j.asb...@ieee.org


On Wed, Aug 2, 2023 at 5:24 PM Doug Nix  wrote:

> Colleagues,
>
> I have a client who has installed a COTS UPS in an industrial control
> panel. The UPS is being used to keep the HMI alive in a power outage or if
> the disconnecting device is switched off.
>
> I have scoured the resources that I have, and I can find nothing that
> requires a label on the outside of the panel to indicate that there is a
> UPS inside. EN 60204-1:2018 does not address this. I have a copy of EN IEC
> 62040-1, and it does not require a hazard warning label anywhere.
>
> Any guidance you might offer is appreciated.
>
> Doug Nix
> d...@ieee.org
> +1 (519) 729-5704
>
> --
>
> 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 All
> emc-pstc postings are archived and searchable on the web at:
> https://www.mail-archive.com/emc-pstc@listserv.ieee.org/
>
> Website: https://ewh.ieee.org/soc/pses/
> Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to
> unsubscribe) 
> List rules: https://ewh.ieee.org/soc/pses/listrules.html
>
> For help, send mail to the list administrators:
> Mike Sherman at: msherma...@comcast.net
> Rick Linford at: linf...@ieee.org
>
> For policy questions, send mail to:
> Jim Bacher at: j.bac...@ieee.org
> --
>
> To unsubscribe from the EMC-PSTC list, click the following link:
> https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1
>

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[PSES] Hazard warning labels on panel doors where COTS UPS installed?

[Doug Nix]

Colleagues,

I have a client who has installed a COTS UPS in an industrial control panel. 
The UPS is being used to keep the HMI alive in a power outage or if the 
disconnecting device is switched off.

I have scoured the resources that I have, and I can find nothing that requires 
a label on the outside of the panel to indicate that there is a UPS inside. EN 
60204-1:2018 does not address this. I have a copy of EN IEC 62040-1, and it 
does not require a hazard warning label anywhere.

Any guidance you might offer is appreciated.

Doug Nix
d...@ieee.org
+1 (519) 729-5704


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