Dear Mr Jensen, A Recognized/Certified Component is required to be marked with at least the Recognized/Certified Company's name or tradename or trademark or file number (if allowed for the specific category) and model designation. Because of limited space on small components, manufacturers prefer to use their trademark or file number in lieu of their company name.
I believe that the CS within a circle is the manufacturer's trademark (I have seen it before - I think it is Cooper Industries). One way to find out is if you have the 1998 UL Recognized Component Directory, to look up in Volume 3 at the index of trademarks. You should be able to trace the Recognized Compay's name by looking up the trademark. Then you can go to the category for fuseholders section (I believe it UL's CCN is IYVZ2) and look up under the Recognized Company's name to see if the particular fuse you are using is indeed Recognized. Of course if you know the Recognized Company's name, go straight to the fuseholder category or ask the manufacturer/distributor to provide you with the UL yellow card index. You will note that there is a "Markings" section in the index. If the trademark was registered with UL, it will appear in the index. If I had my UL Recognized Component Directory with me, I could help you more. I return to work next Tuesday. If you still have problems, e-mail to let me know. Best Regards, From: [email protected] Date sent: Thu, 8 Oct 1998 7:20:25 +0100 To: [email protected] Subject: CS label Send reply to: [email protected] > Dear group, > > Can anyone tell me that CS in a circle represent. I have seen it on a > fuseholder with UL and CSA approval and then this CS. > > Best regards, > > > Mr. Kim Boll Jensen > Denmark > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).

