Hello Bostjan:
The certification of a component such as a video
monitor cannot be used as a stand-alone certification;
it can only be used to certify the component as part
of another equipment.
A certified component should be included in the list
of critical components -- even though it is low
voltage and non-critical. It is only necessary to
identify it as a display, its manufacturer and model,
power requirements, and who it is certified by; it is
not necessary to include other data.
Best regards,
Richard
On 8/13/2013 10:29 AM, Boštjan Glavič wrote:
Hello Richard,
Yes the unit is supplied by external power supply source with SELV,
LPS output.
The complete unit will be NRTL certified. My question is whether we
need to consider complete monitor (it is for building-in, not consumer
monitor) as critical component or I can leave it out of list of
critical components)? In case we need to put it in list of critical
components, can I describe it by internal parts/components (e.g.
connector, panel, etc)?
Manufacturer of final unit is buying the monitor and cannot apply for
NRTL approval without cooperation of monitor manufacturer.
Why do you find approval of the panel useless?
Best regards,
Bostjan
*From:*Richard Nute [mailto:[email protected]]
*Sent:* Tuesday, August 13, 2013 6:57 PM
*To:* Boštjan Glavič
*Cc:* [email protected]
*Subject:* Re: LED monitor
Hello Bostjan:
If the LED monitor runs on mains voltage, then
it must be certified by an NRTL.
If it runs on low voltage, it need not be certified
by an NRTL. But, I would get it certified anyway
as it is easy, not time consuming, and cheap. And,
it avoids any problems.
The UL-recognized LED panel is of no value unless
you certify the whole display.
Best regards,
Rich
On 8/12/2013 11:21 PM, Boštjan Glavič wrote:
Dear Experts,
We are just approving one product for US/CAN market that comprises
LED monitor. Would you consider LED monitor as a critical
component and ask for NRTL approval? There is no back-light
inverter inside and therefore no hazardous voltages.
LED display panel itself is UL approved. Is that enough?
Best regards,
Bostjan
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