SIST EN IEC 60269-3:2025
(Main)Low-voltage fuses - Part 3: Supplementary requirements for fuses for use by unskilled persons (fuses mainly for household or similar applications) - Examples of standardized systems of fuses A to F
Low-voltage fuses - Part 3: Supplementary requirements for fuses for use by unskilled persons (fuses mainly for household or similar applications) - Examples of standardized systems of fuses A to F
IEC 60269-3:2024 is divided into four fuse systems, each dealing with a specific example of standardized fuses for use by unskilled persons. This part applies to “gG” fuses only. Unskilled persons do not have technical knowledge or sufficient experience. To avoid dangers, which electricity may create, the relevant part of the fuse standard shall provide requirements for maximum safety in service. IEC 60269-3 provides four systems for use by unskilled persons. Instructions for the safe operation of fuse-links are provided in the manufacturer’s literature. All systems provide their own mechanical solution to avoid the use of a fuse-link with higher current rating (non-interchangeability) whereas the protection of cables and lines is ensured. The applicant is required to take care to replace a fuse-link by the same type.
Niederspannungssicherungen - Teil 3: Ergänzende Anforderungen an Sicherungen zur Betätigung durch Laien (Sicherungen vorwiegend für den Hausgebrauch und ähnliche Anwendungen) - Beispiele für genormte Sicherungssysteme A bis F
Fusibles basse tension - Partie 3: Exigences supplémentaires pour les fusibles destinés à être utilisés par des personnes non qualifiées (fusibles pour usages essentiellement domestiques et analogues) - Exemples de systèmes de fusibles normalisés A à F
L'IEC 60269-3:2024 est divisée en quatre systèmes de fusibles traitant chacun d'un exemple spécifique de fusible normalisé destiné à être utilisés par des personnes non qualifiées. La présente partie s'applique uniquement aux fusibles "gG". Les personnes non qualifiées ne disposent pas des connaissances techniques ou d'une expérience suffisante. Pour éviter les dangers que l'électricité peut présenter, la partie de la norme relative aux fusibles doit fournir des exigences pour une sécurité maximale en service. L'IEC 60269-3 définit quatre systèmes destinés à être utilisés par des personnes non qualifiées. Des instructions permettant le fonctionnement en toute sécurité des éléments de remplacement sont fournies dans la documentation du fabricant. Tous les systèmes fournissent leur propre solution mécanique pour éviter l'utilisation d'un élément de remplacement avec un courant assigné supérieur (non-interchangeabilité) tandis que la protection des câbles et des lignes est assurée. Le demandeur doit veiller à remplacer un élément de remplacement par un autre du même type.
Nizkonapetostne varovalke - 3. del: Dodatne zahteve za varovalke, ki jih uporabljajo nestrokovne osebe (uporaba varovalk zlasti v gospodinjstvu in podobnih okoljih) - Primeri standardiziranih sistemov varovalk od A do F
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2025
Nizkonapetostne varovalke - 3. del: Dodatne zahteve za varovalke, ki jih
uporabljajo nestrokovne osebe (uporaba varovalk zlasti v gospodinjstvu in
podobnih okoljih) - Primeri standardiziranih sistemov varovalk od A do F
Low-voltage fuses - Part 3: Supplementary requirements for fuses for use by unskilled
persons (fuses mainly for household or similar applications) - Examples of standardized
systems of fuses A to F
Niederspannungssicherungen - Teil 3: Ergänzende Anforderungen an Sicherungen zur
Betätigung durch Laien (Sicherungen vorwiegend für den Hausgebrauch und ähnliche
Anwendungen) - Beispiele für genormte Sicherungssysteme A bis F
Fusibles basse tension - Partie 3: Exigences supplémentaires pour les fusibles destinés
à être utilisés par des personnes non qualifiées (fusibles pour usages essentiellement
domestiques et analogues) - Exemples de systèmes de fusibles normalisés A à F
Ta slovenski standard je istoveten z: EN IEC 60269-3:2025
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 60269-3
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2025
ICS 29.120.50 Supersedes HD 60269-3:2010; HD 60269-
3:2010/A1:2013; HD 60269-3:2010/A2:2022
English Version
Low-voltage fuses - Part 3: Supplementary requirements for
fuses for operation by unskilled persons (fuses mainly for
household and similar applications) - Examples of standardized
systems of fuses A to F
(IEC 60269-3:2024)
Fusibles basse tension - Partie 3: Exigences Niederspannungssicherungen - Teil 3: Ergänzende
supplémentaires pour les fusibles destinés à être utilisés Anforderungen an Sicherungen zur Betätigung durch Laien
par des personnes non qualifiées (fusibles pour usages (Sicherungen vorwiegend für den Hausgebrauch und
essentiellement domestiques et analogues) - Exemples de ähnliche Anwendungen) - Beispiele für genormte
systèmes de fusibles normalisés A à F Sicherungssysteme A bis F
(IEC 60269-3:2024) (IEC 60269-3:2024)
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 60269-3:2025 E
European foreword
The text of document 32B/745/FDIS, future edition 5 of IEC 60269-3, 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 60269-3:2025.
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 HD 60269-3:2010 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 60269-1:2025.
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.
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 60269-3:2024 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 60529 NOTE Approved as EN 60529
IEC 60269-6 NOTE Approved as EN 60269-6
ISO 228-1 NOTE Approved as EN ISO 228-1
ISO 228-2 NOTE Approved as EN ISO 228-2
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 60068-2-31 - Environmental testing - Part 2-31: Tests - EN 60068-2-31 -
Test Ec: Rough handling shocks, primarily
for equipment-type specimens
IEC 60269-1 2024 Low-voltage fuses - Part 1: General EN IEC 60269-1 2025
requirements
IEC 60664 series Insulation coordination for equipment within EN IEC 60664 series
low-voltage supply systems
IEC 60898-1 (mod) 2015 Electrical accessories - Circuit-breakers for EN 60898-1 2019
overcurrent protection for household and
similar installations - Part 1: Circuit-
breakers for a.c. operation
- - + A11 2024
+ AMD1 2019 + A1 2024
IEC 60999-1 1999 Connecting devices - Electrical copper EN 60999-1 2000
conductors - Safety requirements for screw-
type and screwless-type clamping units -
Part 1: General requirements and particular
requirements for clamping units for
conductors from 0,2 mm2 up to 35 mm2
(included)
IEC 61439-1 - Low-voltage switchgear and controlgear EN IEC 61439-1 -
assemblies - Part 1: General rules
IEC 61439-3 2012 Low-voltage switchgear and controlgear EN 61439-3 2012
assemblies - Part 3: Distribution boards
intended to be operated by ordinary
persons (DBO)
IEC 60269-3 ®
Edition 5.0 2024-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low- voltage fuses –
Part 3: Supplementary requirements for fuses for operation by unskilled persons
(fuses mainly for household or similar applications) – Examples of standardized
systems of fuses A to F
Fusibles basse tension –
Partie 3: Exigences supplémentaires pour les fusibles destinés à être utilisés par
des personnes non qualifiées (fusibles pour usages essentiellement
domestiques et analogues) – Exemples de systèmes de fusibles normalisés A à
F
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-9107-8
– 2 – IEC 60269-3:2024 © IEC 2024
CONTENTS
FOREWORD . 10
INTRODUCTION . 13
1 General Scope. 14
2 Normative references . 14
3 Terms and definitions . 15
Fuse system A: D type fuse system . 16
1 General . 16
1.1 Scope . 16
2 Terms and definitions . 16
3 Conditions for operation in service . 16
4 Classification . 16
5 Characteristics of fuses . 16
5.2 Rated voltage . 16
5.3.1 Rated current of the fuse-link . 17
5.3.2 Rated current of the fuse-holder . 17
5.3.3 Rated current of the gauge-piece . 17
5.5 Rated power dissipation of a fuse-link and rated acceptable power
dissipation of a fuse-holder . 17
5.6 Limits of time-current characteristics . 17
5.6.1 Time-current characteristics, time-current zones and overload curves . 17
5.6.2 Conventional times and currents . 18
5.6.3 Gates . 18
5.7 Breaking range and breaking capacity . 18
5.7.2 Rated breaking capacity . 18
6 Markings. 18
6.1 General . 18
6.2 Marking of fuse-bases . 19
6.3 Marking of the gauge-pieces . 19
7 Standard conditions for construction . 19
7.1 Mechanical design . 19
7.1.2 Connections including terminals . 19
7.1.3 Fuse-contacts . 20
7.1.4 Construction of a gauge-piece . 20
7.1.6 Construction of a fuse-carrier . 20
7.1.7 Construction of a fuse-link . 21
7.1.8 Non-interchangeability . 21
7.1.9 Construction of a fuse-base . 21
7.2 Insulating properties and suitability for isolation . 22
7.3 Temperature rise, power dissipation of the fuse-link and acceptable power
dissipation of the fuse-holder . 22
7.7 I t characteristics . 23
7.7.1 Pre-arcing I t values . 23
7.7.2 Operating I t values . 23
7.8 Overcurrent discrimination of "gG" fuse-links . 23
7.9 Protection against electric shock . 24
IEC 60269-3:2024 © IEC 2024 – 3 –
8 Tests . 24
8.1.4 Arrangement of the fuse and dimensions . 24
8.2 Verification of the insulating properties and of the suitability for isolation . 25
8.2.1 Arrangement of the fuse-holder .
...
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