I guess the manufacturer doesn't understand EMC compliance, and the list
of standards is grabbed from elsewhere. I'm led to this because 'IEC
55011' doesn't exist; it's either CISPR 11 or EN 55011. And, as you say,
it still doesn't make sense, because the item is passive and cannot emit
anything.
On 2025-12-16 15:31, Lauren Crane wrote:
Dear Experts,
I have a weird Customs challenge. I am trying to import to the US an
LED indicator wrapped up in a small case etc… it is a part of a
company’s switch line up. It is essentially a lighted (LED) single
pole switch block for a pushbutton, rated to operate at 24 V AC/DC.
The OEM has declared the following compliance :
* Resistance to fast transients 2 kV IEC 61000-4-4
* Resistance to electromagnetic fields 9.1 V/m (10 V/m) IEC 61000-4-3
* Resistance to electrostatic discharge 6 kV on contact (on metal
parts) IEC 61000-4-2 8 kV in free air (in insulating parts) IEC
61000-4-2
* Electromagnetic emission Class B IEC 55011
This gives it the appearance as an item of EMC-interest, thus
triggering (apparently) the import broker to flag it for the FDA
import form 2877.
My question is why would the switch OEM company do this? I can see why
ESD and fast transients might be of interest to a switch, but why say
it is compliant to an emission standard when the item in and of itself
is not an emitter? I’m nearly certain it is compliant to the cited
standard because it has no emissions of its own at all.
Similarly one could declare these compliances for a length of
insulated conductor, but it really makes no sense to do so.
It does operate off of 24V AC and DC, but I doubt there are any active
components doing power conversion internally.
Thanks in advance for any insights you might have….
Best Regards,
-Lauren Crane
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