Courtland, There is nothing in UL1950 that says you MUST have an NRTL logo . . . there are requirements for ratings/safety markings, but not a logo.
NRTLs typically have specifications on their logos, and how they must appear/be used. I don't recall seeing that you MUST apply the mark . . . Simply put, the NEC dictates (I don't have the exact location handy) that an electrical/electronic product must be evaluated by an NRTL against the standard that is applicable to that product. Once you have permission to apply a mark from an NRTL, you demonstrate the 'listing' by application of the logo. Electricians (competent ones) look for a logo and act accordingly. If they don't see one they may not wire it up, or they can unplug it (they have that right through the NEC). On another note, using one NRTL over another does have it's advantages (evaluation cost aside). Some NRTL logos are more readily recognizable than others by consumers. In many cases that I've directly experienced, market pressure forced my to use one NRTL logo over another. It depends on your customer base. If your customers are regulatory savy, and understand the NRTL program, it doesn't matter who you use . . . Unfortunately, the average person does not know about any other logo other than one particular prominent one. That makes it difficult . . . It is wise to evaluate your customer base from this respect. . . . The opinions expressed here are solely my own, and do not necessarily reflect those of my employer . . . John Juhasz Fiber Options Bohemia, NY -----Original Message----- From: Courtland Thomas [mailto:[email protected]] Sent: Wednesday, January 24, 2001 4:05 PM To: emcpost Subject: Product Marking Hello group, I have a question concerning labeling a product. If we go to a NRTL and get Safety testing performed, we typically put the Safety logo (UL for example) on the product label. Our marketing people have a problem with having different logo's. They would like to standarize on a single logo such as UL. This kind of thinking hinders the process of getting the best price possible. I would like to get the testing performed at a lab which doesn't use UL. Would it be possible to just put "Conforms to UL 1950 and CAN/CSA 1950" on the label and forget the logo? Or is there a requirement to have a logo? Thanks, Courtland Thomas Patton Electronics ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
