BS EN IEC 60947-3:2021 Incorporating corrigendum November 2021 BSl Standards Publication Low-voltage switchgear and controlgear Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units bsi. BSENIEC 60947-3:2021 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN IEC 60947-3:2021. It is identical to IEC 60947-3:2020, incorporating corrigendum November 2021. It supersedes BS EN 60947-3:2009+A2:2015, which will be withdrawn on 19 February 2024. The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by IEC corrigendum November 2021 is indicated in the text by Ac(Acil. The UK participation in its preparation was entrusted to Technical Committee PEL/121/1, Low voltage switchgear and controlgear A list of organizations represented on this committee can be obtained on request to its committee manager Contractual and legal considerations This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be liability is expressly disclaimed to the full extent permitted by the 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 respect to its use of this publication. This publication is not intended to constitute a contract. Users are responsible for its correct application. This publication has been prepared under a mandate given to the European Standards Organizations by the European Commission and the European Free Trade Association. It is intended to support requirements of the EU legislation detailed in the European Foreword. A European Annex,usuallyAnnexZAorZZ,describeshowthispublicationrelatesto that EU legislation. For the Great Britain market (England, Scotland and Wales), if UK Government has designated this publication for conformity with UKCA marking (or similar) legislation, it may contain an additional National Annex.WheresuchaNationalAnnexexists,itshowsthecorrelation between this publication and the relevant UK legislation. If there is no National Annex of this kind, the relevant Annex ZA or ZZ in the body of the European text will indicate the relationship to UK regulation applicable in Great Britain. References to EU legislation may need to be read in accordance with the UK designation and the applicable UK law. Further information on designated standards can be found at www.bsigroup.com/standardsandregulation. For the Northern Ireland market, UK law will continue to implement relevant EU law subject to periodic confirmation. Therefore Annex ZA/zZ in the European text, and references to EU legislation, are still valid for this market. UK Government is responsible for legislation. For information on legislation and policies relating to that legislation, consult the relevant pages of www.gov.uk. BRITISH STANDARD BSENIEC 60947-3:2021 @ The British Standards Institution 2022 Published by BSI Standards Limited 2022 ISBN 978 0 539 19888 1 ICS 29.120.40; 29.130.20 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2021. Amendments/corrigenda issued since publication Date Text affected 31 May 2022 Implementation of IEC corrigendum November 2021