BSIEC 63093-15:2025 BSl Standards Publication Ferrite cores - Guidelines on dimensions and the limits of surface irregularities Part 15: U-cores bsi. BSIEC63093-15:2025 BRITISH STANDARD National foreword ThisBritish Standard is theUK implementationof IEC 63093-15:2025 The UK participation in its preparation was entrusted to Technical Committee EPL/51, Transformers, inductors, magnetic components and ferrite materials. A list of organizations represented on this committee can be obtained on requestto its committee manager. Contractualandlegalconsiderations This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will bemade, and no responsibility or liability is or will be reasonableness of this publication. All and any such responsibility and liability is expresslydisclaimed tothe full extent permitted bythe law. This publication is provided as is, and is to be used at the recipient's own risk. The recipient is advised to consider seeking professional guidance with respectto itsuseofthispublication. This publication is not intended to constitute a contract. Users are responsibleforits correctapplication. @TheBritishStandards Institution2025 Published byBSI Standards Limited 2025 ISBN9780539289862 ICS 29.100.10 Compliancewith aBritish Standard cannot confer immunityfrom legal obligations. This British Standard was published under the authority of the StandardsPolicyandStrategyCommitteeon31December2025. Amendments/corrigendaissued sincepublication Date Textaffected BSIEC 63093-15:2025 IEC IEC 63093-15 Edition 1.02025-08 INTERNATIONAL STANDARD Ferrite cores -Guidelines on dimensions and the limits of surface irregularities Part 15: U-cores IEC 63093-15:2025-08(en) ICS 29.100.10 ISBN 978-2-8327-0619-0 BSIEC63093-15:2025 THIS PUBLICATIONIS COPYRIGHT PROTECTED Copyright@2025IEC,Geneva,Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanicai, including photocopying and microfilm, without permission in writing from either IEc or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Secretariat Tel.: +41 22 919 02 11 3, rue de Varembe [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigendum or an amendment might have been published. IEC publications search - IEC Products&ServicesPortal-products.iec.ch webstore.iec.ch/advsearchform Discover our powerful search engine and read freely all the The advanced search enables to find IEC publications by a publications previews, graphical symbols and the glossary. variety of criteria (reference number, text, technical With a subscription you wili always have access to up to date committee, ...). It also gives information on projects, content tailored to your needs. replaced and withdrawn publications. Electropedia -www.electropedia.org IEC JustPublished -webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology. Stay up to date on all new IEC publications. Just Published containing more than 22 500 terminological entries in English details all new publications released. Available online and and French, with equivalent terms in 25 additional languages. once a month by email. Also known as the international Electrotechnical Vocabulary (IEV) online. IEC CustomerServiceC