ENIEC63522-33 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHENORM October2025 ICS 29.120.70 English Version Electrical relays - Tests and measurements - Part 33: Continuity of protective earthing connection (IEC 63522-33:2025) Relais électriques - Essais et mesurages - Partie 33: Elektrische Relais - Mess- und Prufverfahren - Teil 33: Continuite de la connexion de terre de protection Kontinuitat der Schutzleiterverbindung (IEC 63522- 33:2025) (IEC 63522-33:2025) This European Standard was approved by CENELEC on 2025-09-23. 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 orto 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. HE European Committee for Electrotechnical Standardization Comite Européen de Normalisation Electrotechnique EuropaischesKomiteefurElektrotechnischeNormung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels Ref. No. EN IEC 63522-33:2025 E ENIEC63522-33:2025 (E) Europeanforeword The text of document 94/1129/FDIS, future edition 1 of IEC 63522-33, prepared by TC 94 "Electrical relays" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC63522-33:2025. The following dates are fixed: latestdate bywhich thedocument has to be implemented at national (dop)2026-10-31 latest date by which the national standards conflicting with the(dow) 2028-10-31 document have to be withdrawn Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.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 This document is read in conjunction with EN IEC 63522-0:—1. Any feedback and questions on this document should be directed to the users'national committee. A complete listing of thesebodies can be found on the CENELEC website. Endorsement notice The text of the International Standard IEC 63522-33:2025 was approved by CENELEC as a European Standard without any modification. 1 Under preparation. Stage at the time of publication: prEN IEC 63522-0:2024. ENIEC63522-33:2025 (E) Annex ZA (normative) Normativereferencesto international publications withtheircorrespondingEuropeanpublications The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. relevant EN/HD applies. NOTE2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cencenelec.eu. Publication Year Title EN/HD Year IEC 63522-0 Electrical relays -Tests and Measurements _2 EN IEC 63522-0 -Part O: General and Guidance 2 Under preparation: Stage at the time of publication: IEC/CDV 63522-0:2024. 3Under preparation. Stage at the time of publication: prEN IEC 63522-0:2024. IEC63522-33:2025IEC2025 CONTENTS FOREWORD. Scope.. 1 Normative references. 2 4 3 Terms and definitions. 4 4