If a component is Recognized there are Conditions of Acceptability or C of 
A's included in the recognition report. These conditions will/may outline 
test critera as well as additional requirements to be applied when used in an 
end use product. 

UL cannot release a report or C of A's without written approval from the 
owner of the File. Since the complete File includes detailed construction 
description many manufacturers do not want to release this. You may find it 
easier to just ask for the C of A's. 

Note that when dealing with labs other than UL (i.e. ETL, MET, etc.), they do 
not have access to the UL files either. The other labs must go through the 
same process to obtain component information.  

I always stress that a manufacturer does not want to evaluate someone elses 
component unless he/she has no other choice. Construction controls will be 
placed on the component in the end use product file. This can cause a problem 
down the road when the component manufacturer changes the construction 
forcing the end use manufacturer the have the component re-evaluated.

As for the cost consideration. UL should be able to provide you with a cost 
breakdown or difference in the product evaluation using a Recognized 
Component verses a custom component. However, bear in mind, additional costs 
might be included in Follow-up services if the component has to be verified 
at a different location.

John L. Allen, P.E.
Manager - Atlanta
Local Engineering Services
770-498-9156
Disclaimer
These views and comments do not necessarily reflect the views of my employer 
Underwriters Laboratories.    


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