EN IEC 63341-1 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM November2025 ICS 45.060.01; 27.070 English Version Railway applications - Hydrogen and fuel cell systems for rolling stock - Part 1: Fuel cell power system (IEC 63341-1:2025) Applications ferroviaires - Systemes a hydrogene et a pile a Bahnanwendungen - Wasserstoff- und Brennstoffzellen- combustible pour le materiel roulant - Partie 1: Systeme a Energiesysteme fur Bahnfahrzeuge - Teil 1: pile a combustible Brennstoffzellen-Energiesystem (IEC 63341-1:2025) (IEC 63341-1:2025) This European Standard was approved by CENELEC on 2025-11-14. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and the United Kingdom. CENELEC European Committeefor Electrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fuir Elektrotechnische Normung CEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels Ref.No.EN IEC 63341-1:2025E EN IEC 63341-1:2025 (E) European foreword The text of document 9/3212/FDIS,future edition 1 of IEC 63341-1,prepared byTC 9"Electrical equipment and systems for railways"was submitted to the IEC-CENELEC parallel vote and approved byCENELEC as EN IEC 63341-1:2025. The following dates are fixed: latest date by which the document has to be implemented at national (dop)2026-11-30 level by publication of an identicalnational standard orby endorsement latest date by which the national standards conflicting withthe (dow)2028-11-30 document have to be withdrawn Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights. Any feedback and questions on this document should be directed to the users'national committee.A complete listingof these bodies can befound on the CENELEC website. Endorsement notice The text of the International Standard IEC63341-1:2025was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standard indicated: IEC60349-2 NOTE Approved as EN 60349-2 IEC 60349-4 NOTE Approved as EN 60349-4 IEC 60751 NOTE ApprovedasENIEC60751 IEC60812 NOTE Approvedas EN IEC 60812 IEC61133 NOTE ApprovedasENIEC61133 IEC 61287-1 NOTE Approved as EN 61287-1 IEC 61377 NOTE Approved as EN 61377 IEC 61508 (series) NOTE Approvedas EN61508 (series) IEC61881-3 NOTE Approved as EN 61881-3 IEC 61882 NOTE Approvedas EN 61882 IEC 62864-1:2016 NOTE Approved as EN 62864-1:2016 (not modified) IEC 62928 NOTE ApprovedasENIEC62928 Approved as prEN IEC 62973-1:2025 (not modified)to be IEC 62973-1:2018 NOTE published ISO 9223 NOTE Approved as EN ISO 9223 2 EN IEC 63341-1:2025 (E) ISO9614-1 NOTE Approved as EN ISO 9614-1 ISO 9614-2 NOTE Approved as EN ISO 9614-2 3 ENIEC 63341-1:2025 (E) Annex ZA (normative) Normativereferencestointernationalpublications withtheircorrespondingEuropeanpublications Th