SIST EN IEC 60269-1:2025
(Amendment)Low-voltage fuses - Part 1: General requirements (IEC 60269-1:2024)
Low-voltage fuses - Part 1: General requirements (IEC 60269-1:2024)
IEC 60269-1:2024 is available as IEC 60269-1:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60269-1:2024 is applicable to fuses incorporating enclosed current-limiting fuse-links with rated breaking capacities of not less than 6 kA, intended for protecting power-frequency AC circuits of nominal voltages not exceeding 1 000 V or DC circuits of nominal voltages not exceeding 1 500 V.
Niederspannungssicherungen - Teil 1: Allgemeine Anforderungen (IEC 60269-1:2024)
Fusibles basse tension - Partie 1: Exigences générales (IEC 60269-1:2024)
IEC 60269-1:2024 est disponible sous forme de IEC 60269-1:2024 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60269-1:2024 s'applique aux fusibles qui incorporent des éléments de remplacement limiteurs de courant à fusion enfermée dont le pouvoir de coupure assigné est supérieur ou égal à 6 kA, destinés à assurer la protection des circuits à courant alternatif à fréquence industrielle dont la tension nominale ne dépasse pas 1 000 V ou des circuits à courant continu dont la tension nominale ne dépasse pas 1 500 V.
Nizkonapetostne varovalke - 1. del: Splošne zahteve (IEC 60269-1:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2025
Nizkonapetostne varovalke - 1. del: Splošne zahteve
Amendment 3 - Low-voltage fuses - Part 1: General requirements
Niederspannungssicherungen - Teil 1: Allgemeine Anforderungen
Fusibles basse tension - Partie 1: Exigences générales
Ta slovenski standard je istoveten z: EN IEC 60269-1:2025
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60269-1
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2025
ICS 29.120.50 Supersedes EN 60269-1:2007; EN 60269-
1:2007/A1:2009; EN 60269-1:2007/A2:2014
English Version
Low-voltage fuses - Part 1: General requirements
(IEC 60269-1:2024)
Fusibles basse tension - Partie 1: Exigences générales Niederspannungssicherungen - Teil 1: Allgemeine
(IEC 60269-1:2024) Anforderungen
(IEC 60269-1:2024)
This European Standard was approved by CENELEC on 2024-10-16. 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 60269-1:2025 E
European foreword
The text of document 32B/748/FDIS, future edition 5 of IEC 60269-1, prepared by SC 32B "Low-
voltage fuses" of IEC/TC 32 "Fuses" was submitted to the IEC-CENELEC parallel vote and approved
by CENELEC as EN IEC 60269-1:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-04-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-04-30
document have to be withdrawn
This document supersedes EN 60269-1:2007 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.
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 60269-1:2024 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 60038:2009 NOTE Approved as EN 60038:2011
IEC 60127-2 NOTE Approved as EN 60127-2
IEC 60228:2023 NOTE Approved as EN IEC 60228:2024 (not modified)
IEC 60269-4 NOTE Approved as EN 60269-4
IEC 60269-6 NOTE Approved as EN 60269-6
IEC 60269-7 NOTE Approved as EN IEC 60269-7
IEC 60695-2-10 NOTE Approved as EN IEC 60695-2-10
IEC 60947-3 NOTE Approved as EN IEC 60947-3
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 60269-2 (mod) 2013 Low-voltage fuses - Part 2: Supplementary HD 60269-2 2013
requirements for fuses for use by authorized
persons (fuses mainly for industrial
application) - Examples of standardized
systems of fuses A to K
IEC 60529 - Degrees of protection provided by enclosures EN 60529 -
(IP Code)
IEC 60584-1 2013 Thermocouples - Part 1: EMF specifications EN 60584-1 2013
and tolerances
IEC 60617 - Standard data element types with associated - -
classification scheme for electric components
- Part 4: IEC reference collection of standard
data element types and component classes
IEC 60664-1 1992 Insulation coordination for equipment within - -
low-voltage systems - Part 1: Principles,
requirements and tests
+ A1 2000 - -
+ A2 2002 - -
IEC 60269-1 ®
Edition 5.0 2024-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage fuses –
Part 1: General requirements
Fusibles basse tension –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-9108-5
– 2 – IEC 60269-1:2024 © IEC 2024
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
3.1 Fuses and their component parts . 10
3.2 General terms . 12
3.3 Characteristic quantities . 14
4 Conditions for operation in service . 17
4.1 General . 17
4.2 Ambient air temperature (T ) . 18
a
4.3 Altitude . 18
4.4 Atmospheric conditions . 18
4.5 Voltage . 18
4.6 Current . 18
4.7 Frequency, power factor and time constant . 18
4.7.1 Frequency . 18
4.7.2 Power factor . 19
4.7.3 Time constant (τ) . 19
4.8 Conditions of installation . 19
4.9 Utilization class . 19
4.10 Selectivity of fuse-links . 19
5 Classification . 19
6 Characteristics of fuses . 19
6.1 Summary of characteristics . 19
6.1.1 General . 19
6.1.2 Fuse-holders . 19
6.1.3 Fuse-links . 20
6.1.4 Complete fuses . 20
6.2 Rated voltage . 20
6.3 Rated current . 21
6.3.1 Rated current of the fuse-link . 21
6.3.2 Rated current of the fuse-holder . 21
6.4 Rated frequency (see 7.1 and 7.2) . 21
6.5 Rated power dissipation of a fuse-link and rated acceptable power
dissipation of a fuse-holder. . 21
6.6 Limits of time-current characteristics . 21
6.6.1 General . 21
6.6.2 Time-current characteristics, time-current zones . 21
6.6.3 Conventional times and currents . 22
6.6.4 Gates . 22
6.7 Breaking range and breaking capacity . 23
6.7.1 Breaking range and utilization category . 23
6.7.2 Rated breaking capacity . 24
6.8 Cut-off current and I t characteristics . 24
6.8.1 General . 24
6.8.2 Cut-off current characteristics . 24
IEC 60269-1:2024 © IEC 2024 – 3 –
6.8.3 I t characteristics . 24
7 Markings. 24
7.1 General . 24
7.2 Markings of fuse-holders . 25
7.3 Markings of fuse-links . 25
8 Standard conditions for construction . 25
8.1 Mechanical design . 25
8.1.1 Replacement of fuse-links . 25
8.1.2 Connections, including terminals . 25
8.1.3 Fuse-contacts . 26
8.1.4 Construction of a gauge-piece . 26
8.1.5 Mechanical strength of the fuse-link . 26
8.2 Insulating properties and suitability for isolation . 26
8.3 Temperature rise, power dissipation of the fuse-link and acceptable power
dissipation of a fuse-holder . 27
8.4 Operation . 27
8.5 Breaking capacity . 28
8.6 Cut-off current characteristic .
...
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