Hi Joe:


>   liability and such.  Can anyone share some more info as to their reasons for
>   listing or not listing such a product which is well below hazardous limits.

There are two schools of thought:

1.  Because of its low-voltage supply, the unit is exempt from
    most safety certifications throughout the world.  Therefore,
    there is no need to obtain any safety certifications.

2.  Regardless of being exempt, customers expect most electrical 
    products to bear safety certification marks.  Indeed, OSHA
    and NEC electrical inspectors (and customs inspectors) cannot 
    make field judgements as to whether an electrical product is 
    exempt from safety certification.  The presence of the marks 
    assure acceptance without your intervention.

I suggest that the decision should be based on your customer base,
where the product is used, your company, the product, and the 
possible difficulties you might encounter without the marks.  Any 
difficulties will have a cost in (1) delaying the product to the 
customer, and (2) your time to resolve, for the various inspectors, 
the fact that the product does not require the safety certification.

For example, low-voltage products going into the home are not 
likely to be subject to discrimination due to safety certification
marks.

On the other hand, products going into the workplace, being part 
of an electrical installation, or going across borders may very 
well be subject to inspection for certification marks.


Have fun!
Rich




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