Chris

Try this web address, it explains all the various UL marks and what they
mean. 

http://www.ul.com/mark/index.html

Andrew Carson - Senior Compliance Engineer, Xyratex, UK

Phone: +44 (0)23 9249 6855 Fax: +44 (0)23 9249 6014


-----Original Message-----
From: Chris Maxwell [mailto:[email protected]] 
Sent: 22 February 2002 14:40
To: EMC-PSTC Internet Forum
Subject: Different shades of UL


Hi all,

I know that this has been covered before.  But please indulge my
ignorance.

There are many different forms of UL marks, each with subtle
differences.  

There is the "UL" in a circle.  There is also the mirror lettered "RU".
There are also some subscripts denoting approval for Canada as well.
There may be some other variations that I can't remember.  Anyone care
to blow a few minutes on a Friday afternoon to explain which symbol
means what?  

Thanks,

Chris Maxwell | Design Engineer - Optical Division
email [email protected] | dir +1 315 266 5128 | fax +1 315 797
8024

NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA
web www.nettest.com | tel +1 315 797 4449 | 




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