EN IEC 60947-7-1:2025
(Main)Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors
Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors
IEC 60947-7-1:2025 specifies requirements for terminal blocks and test disconnect terminal blocks according to Annex D with screw-type or screw-less-type clamping units primarily intended for industrial or similar use and to be fixed to a support to provide electrical and mechanical connection between copper conductors. It applies to terminal blocks intended to connect round copper conductors, with or without special preparation, having a cross-section between 0,05 mm2/30 AWG and 300 mm2/600 kcmil, intended to be used in circuits of a rated voltage not exceeding 1 000 V AC up to 1 000 Hz or 1 500 V DC. The tests on terminal blocks are made with AC or DC supply as required in relevant clauses of this document. This fourth edition cancels and replaces the third edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Scope extension for smaller conductor cross-sections; b) Implementation of a contact pressure via insulation material (CoPI) test; c) Introduction of new informative Annex E for larger cross-sections; d) Reorganisation of all tables merged into two tables for electrical and mechanical values; e) Implementation of AWG-sizes conductor types as an equivalent type of metric conductor with examples in Annex C; f) Reorganisation of Annex D test disconnect terminal blocks to enhance readability; g) Introduction of new informative Annex A for main characteristics of terminal blocks.
Niederspannungsschaltgeräte - Teil 7-1: Hilfseinrichtungen - Reihenklemmen für Kupferleiter
Appareillage à basse tension - Partie 7-1: Matériels accessoires - Blocs de jonction pour conducteurs en cuivre
L'IEC 60947-7-1:2025 spécifie les exigences pour les blocs de jonction et les blocs de jonction de déconnexion d'essai conformément à l'Annexe D avec des organes de serrage du type à vis ou du type sans vis, destinés principalement à des usages industriels ou analogues et à être fixés sur un support afin d'assurer une connexion électrique et mécanique entre des conducteurs en cuivre. Elle s'applique aux blocs de jonction destinés à raccorder des conducteurs ronds en cuivre, avec ou sans préparation spéciale, de section comprise entre 0,05 mm2/AWG 30 et 300 mm2/600 kcmil, destinés à être insérés dans des circuits dont la tension assignée ne dépasse pas 1 000 V en courant alternatif jusqu'à 1 000 Hz ou 1 500 V en courant continu. Les essais sur les blocs de jonction sont effectués avec une alimentation en courant alternatif ou en courant continu, selon les exigences des articles concernés du présent document. Cette quatrième édition annule et remplace la troisième édition parue en 2009. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) extension du domaine d'application pour les plus petites sections de conducteurs; b) mise en œuvre d'un essai de pression de contact par l'intermédiaire d'un matériau isolant (CoPI); c) ajout d'une nouvelle Annexe E informative pour les sections plus grandes; d) réorganisation de tous les tableaux fusionnés en deux tableaux pour les valeurs électriques et mécaniques; e) mise en œuvre des types de conducteurs de tailles AWG selon un type équivalent de conducteur métrique, avec des exemples, à l'Annexe C; f) réorganisation de l'Annexe D concernant les blocs de jonction de déconnexion d'essai afin d'améliorer la lisibilité; g) ajout d'une nouvelle Annexe A informative concernant les caractéristiques principales des blocs de jonction.
Nizkonapetostne stikalne in krmilne naprave - 7-1. del: Pomožna oprema - Priključni bloki za bakrene vodnike (IEC 60947-7-1:2025)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2025
Nizkonapetostne stikalne in krmilne naprave - 7-1. del: Pomožna oprema -
Priključni bloki za bakrene vodnike (IEC 60947-7-1:2025)
Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks
for copper conductors (IEC 60947-7-1:2025)
Niederspannungsschaltgeräte - Teil 7-1: Hilfseinrichtungen - Reihenklemmen für
Kupferleiter (IEC 60947-7-1:2025)
Appareillage à basse tension - Partie 7-1: Matériels accessoires - Blocs de jonction pour
conducteurs en cuivre (IEC 60947-7-1:2025)
Ta slovenski standard je istoveten z: EN IEC 60947-7-1:2025
ICS:
29.120.99 Druga električna dodatna Other electrical accessories
oprema
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60947-7-1
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2025
ICS 29.130.20 Supersedes EN 60947-7-1:2009
English Version
Low-voltage switchgear and controlgear - Part 7-1: Ancillary
equipment - Terminal blocks for copper conductors
(IEC 60947-7-1:2025)
Appareillage à basse tension - Partie 7-1: Matériels Niederspannungsschaltgeräte - Teil 7-1: Hilfseinrichtungen
accessoires - Blocs de jonction pour conducteurs en cuivre - Reihenklemmen für Kupferleiter
(IEC 60947-7-1:2025) (IEC 60947-7-1:2025)
This European Standard was approved by CENELEC on 2025-05-20. 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,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60947-7-1:2025 E
European foreword
The text of document 121A/646/FDIS, future edition 4 of IEC 60947-7-1, prepared by SC 121A "Low-
voltage switchgear and controlgear" of IEC/TC 121 "Switchgear and controlgear and their assemblies
for low voltage" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-06-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-06-30
document have to be withdrawn
This document supersedes EN 60947-7-1:2009 and all of its amendments and corrigenda (if any).
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 60947-1:2021.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
For the relationship with EU Legislation, see informative Annex ZZ, which is an integral part of this
document.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60947-7-1:2025 was 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:
IEC 60228:2023 NOTE Approved as EN IEC 60228:2024 (not modified)
IEC 60352-4:2020 NOTE Approved as EN IEC 60352-4:2020 (not modified)
IEC 60715 NOTE Approved as EN 60715
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 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 60068-2-1 2007 Environmental testing - Part 2-1: Tests - Test A: EN 60068-2-1 2007
Cold
IEC 60068-2-2 2007 Environmental testing - Part 2-2: Tests - Test B: EN 60068-2-2 2007
Dry heat
IEC 60695-11-5 2016 Fire hazard testing – Part 11-5: Test flames – EN 60695-11-5 2017
Needle-flame test method – Apparatus,
confirmatory test arrangement and guidance
IEC 60947-1 2020 Low-voltage switchgear and controlgear Part 1: EN IEC 60947-1 2021
General rules
+AC 2023
+AC 2024
ISO 4046-4 2016 Paper, board, pulps and related terms — – –
Vocabulary — Part 4: Paper and board grades and
converted products
Annex ZZ
(informative)
Relationship between this European standard and the safety
objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be
covered
This European Standard has been prepared under a Commission’s standardization request relating to
harmonized standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means
of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the
Council of 26 February 2014 on the harmonization of the laws of the Member States relating to the
making available on the market of electrical equipment designed for use within certain voltage limits
[2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding safety objectives of
that Directive, and associated EFTA regulations.
Table ZZ.1 — Correspondence between this European standard and Annex I of Directive
2014/35/EU [2014 OJ L96]
Clause(s) / sub-clause(s)
Safety objectives of Directive
Remarks / Notes
2014/35/EU
of this EN
1 a) The essential 6.1, 8.1.4, Annex D.6 * Subclause 6.1.1 is to be
characteristics, the recognition excluded, because is already
and observance of which will covered by LVD
ensure that electrical equipment
will be used safely and in
applications for which it was
made, shall be marked on the
electrical equipment, or, if this is
not possible, on an
accompanying document.
1 b) the electrical equipment, 6.1, 6.2, 7, 8.1, Annex D.6, D.7
together with its component and D.8.1
parts, shall be made in such a
way as to ensure that it can be
safely and properly assembled
and connected.
nd
1 c) The electrical equipment 1 2 para *, 8.2, 8.3, and Annex
shall be so designed and D.1, D.8.2, D.8.3 and D.8.4
manufactured as to ensure that
protection against the hazards
set out in points 2 and 3 is
assured, providing that the
equipment is used in
applications for which it was
made and is adequately
maintained.
Clause(s) / sub-clause(s)
Safety objectives of Directive
Remarks / Notes
2014/35/EU
of this EN
nd
2 a) Measures of a technical 1 2 para and Annex D.1
nature shall be laid down in
accordance with point 1, in order
to ensure that persons and
domestic animals are
adequately protected against
the danger of physical injury or
other harm which might be
caused by direct or indirect
contact.
2 b) Measures of a technical 8.2.1, 8.1.5, 9.4.5, 9.5 and
nature shall be laid down in
Annex D.8.2.1, D.9.4.5, D.9.5
accordance with point 1, in order
to ensure that temperatures,
arcs or radiation which would
cause a danger, are not
produced.
nd
2 c) Measures of a technical 1 2 para and Annex D.1
nature shall be laid down in
accordance with point 1, in order
to ensure that persons,
domestic animals and property
are adequately protected
against non-electrical dangers
caused by the electrical
equipment which are revealed
by experience.
2 d) Measures of a technical 8.1.3, 8.2.2, 9.4.2, 9.4.3 and
nature shall be laid down in
Annex D.8.1.3, D.8.2.2, D.9.4.2,
accordance with point 1, in order
D.9.4.3
to ensure that the insulation is
suitable for foreseeable
conditions.
nd
3 a) Technical measures shall 1 2 para and Annex D.1
be laid down in accordance with
point 1, in order to ensure that
the electrical equipment meets
the expected mechanical
requirements in such a way that
persons, domestic animals and
property are not endangered.
nd
3 b) Technical measures shall 1 2 para and Annex D.1
be laid down in accordance with
point 1, in order to ensure that
the electrical equipment is
resistant to non-mechanical
influences in expected
environmental conditions, in
such a way that persons,
domestic animals and property
are not endangered.
Clause(s) / sub-clause(s)
Safety objectives of Directive
Remarks / Notes
2014/35/EU
of this EN
3 c) Technical measures shall 8.2.3, 9.4.6 and Annex D.8.2.3,
be laid down in accordance with D.9.4.6
point 1, in order to ensure that
the electrical equipment does
not endanger persons, domestic
animals and property in
foreseeable conditions of
overload.
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
IEC 60947-7-1 ®
Edition 4.0 2025-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage switchgear and controlgear –
Part 7-1: Ancillary equipment – Terminal blocks for copper conductors
Appareillage à basse tension –
Partie 7-1: Matériels accessoires – Blocs de jonction pour conducteurs en
cuivre
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.20 ISBN 978-2-8327-0335-9
– 2 – IEC 60947-7-1:2025 © IEC 2025
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Classification . 8
5 Characteristics . 9
5.1 Summary of characteristics . 9
5.2 Type of terminal block . 9
5.3 Rated and limiting values . 9
5.3.1 Rated voltages . 9
5.3.2 Short-time withstand current . 9
5.3.3 Standard cross-sections . 9
5.3.4 Rated cross-section . 9
5.3.5 Rated connecting capacity . 9
6 Product information . 10
6.1 Marking .
...
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