Hi Amund Power supply must be listed as a limited power supply by UL TUV or any other lab.
You may not conclude based on the power consumption that the power supply is power limited because there are additional technical considerations for the power supply to become power limited (for example internal fusing, abnormals and more) Regards ---------------------------------------------------------- Ilan Cohen Technical Director, Safety & Telecom Divisions I.T.L (PRODUCT TESTING) Ltd. 26 Hacharoshet St, POB 211, Or Yehuda, Israel. Tel 972-3-5339022, Fax 972-3-5339019 [email protected], website: http://www.itl.co.il ------------------------------------------ I-SPEC: The best place on the internet to learn about safety !! http://www.i-spec.com/ (I-Spec is provided free of charge as a service by ITL to the compliance community) ------------------------------------------ -----Original Message----- From: [email protected] [ mailto:[email protected]] Sent: Sunday, April 25, 2004 10:20 PM To: [email protected] Subject: Limited Power Source - 100W is the limit? Hi all, Looking for an external AC/DC adapter with output power rating up to 100W/24VDC. Our equipment has a plastic enclosure (flame class /HB material), and therefore need a power that is classified as Limited Power Source, ref IEC60950 chapter 2.5 Question: Has I interpreted the term "Limited Power Source" correct when I conclude that a 100W power supply is the maximum rating for such a power source? Best regards Amund Westin, Oslo / NORWAY ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ieee-pses.org/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
