IEC 60269-4:2009/AMD2:2016

Amendment 2 - Low-voltage fuses - Part 4: Supplementary requirements for fuse-links for the protection of semiconductor devices

Amendement 2 - Fusibles basse tension - Partie 4: Exigences supplémentaires concernant les éléments de remplacement utilisés pour la protection des dispositifs à semiconducteurs

General Information

• Status: Published
• Publication Date: 11-Aug-2016
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• Technical Committee: SC 32B - Low-voltage fuses
• Drafting Committee: MT 9 - TC 32/SC 32B/MT 9

Relations

• Amends: IEC 60269-4:2009 - Low-voltage fuses - Part 4: Supplementary requirements for fuse-links for the protection of semiconductor devices
• Effective Date: 05-Sep-2023
• Revised: IEC 60269-4:2024 - Low-voltage fuses - Part 4: Supplementary requirements for fuse-links for the protection of semiconductor devices
• Effective Date: 05-Jul-2024

Standards Content (Sample)

IEC 60269-4 ®
Edition 5.0 2016-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 2
AM ENDEMENT 2
Low-voltage fuses –
Part 4: Supplementary requirements for fuse-links for the protection of
semiconductor devices
Fusibles basse tension –
Partie 4: Exigences supplémentaires concernant les éléments de remplacement
utilisés pour la protection des dispositifs à semiconducteurs

IEC 60269-4:2009-05/AMD2:2016-08(en-fr)

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 15 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales, électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres et en français, ainsi que les termes équivalents dans 15
documents de l'IEC. Disponible pour PC, Mac OS, tablettes langues additionnelles. Egalement appelé Vocabulaire
Android et iPad. Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub Glossaire IEC - std.iec.ch/glossary
La recherche avancée permet de trouver des publications IEC 65 000 entrées terminologiques électrotechniques, en anglais
en utilisant différents critères (numéro de référence, texte, et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées. antérieures extraites des publications des CE 37, 77, 86 et

CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Restez informé sur les nouvelles publications IEC. Just Service Clients - webstore.iec.ch/csc
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 60269-4 ®
Edition 5.0 2016-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 2
AM ENDEMENT 2
Low-voltage fuses –
Part 4: Supplementary requirements for fuse-links for the protection of

semiconductor devices
Fusibles basse tension –
Partie 4: Exigences supplémentaires concernant les éléments de remplacement

utilisés pour la protection des dispositifs à semiconducteurs

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-3562-1

– 2 – IEC 60269-4:2009/AMD2:2016
© IEC 2016
FOREWORD
This amendment has been prepared by subcommittee SC 32B: Low voltage fuses, of IEC
technical committee TC 32: Fuses.
The text of this amendment is based on the following documents:
FDIS Report on voting
32B/651/FDIS 32B/663/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1.1 Scope and object
Insert, after existing Note 3, the following new Note 4:
NOTE 4 These fuse-links are intended for use on systems employing the standardized voltages and tolerances of
IEC 60038. Tests carried out on fuse-links in accordance with previous editions of this standard shall remain valid
until such time as complimentary equipment has evolved to the standardized voltages and tolerances of IEC 60038.
Replace
d) availability and presentation of technical data (see Annex B).
with the following new text:
d) availability and presentation of technical data (see Annex BB).
1.2 Normative references
Replace the first two references with the following new references:
IEC 60269-1, Low-voltage fuses – Part 1: General requirements
IEC 60269-2, Low-voltage fuses – Part 2: Supplementary requirements for fuses for use by
authorized persons (fuses mainly for industrial application) – Examples of standardized
systems of fuses A to K
Add, after IEC 60269-3:
IEC TR 60269-5, Low-voltage fuses – Part 5: Guidance for the application of low-voltage
fuses
© IEC 2016
IEC 60269-6, Low-voltage fuses – Part 6: Supplementary requirements for fuse-links for the
protection of solar photovoltaic energy systems
Add, after IEC 60417:
IEC 60664-1:2000, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
2.2.105
voltage source inverter fuse-link
VSI fuse-link
Replace the second sentence of NOTE 2 with the following new text:
This short circuit condition leads to a very high rate of rise of current equivalent to a very low value of time
constant, typically 3 ms or less.
3.6.3 Time constant (τ)
Add, after Note 2, the following new NOTE 3:
NOTE 3 Instead of time constant di/dt can be used in case of short circuit condition
di/dt = E/L.
E= voltage value of the DC power source,
L = total inductance of the capacitor discharge circuit.
5.1.2 Fuse-links
Replace the order of the letters:
j)
k)
l)
by the following:
i)
j)
k)
Table 101 – Conventional times and currents for “gR” and “gS” fuse-links
In the third column, replace "1,13 I " by "1,1 I ".
n n
Replace, in the NOTE a:
In Annex C, some examples ….
by the following new text:
In Annex CC, some examples ….
5.7.2 Rated breaking capacity
Add, before the NOTE:
For VSI the rated breaking capacity is based on type tests performed in a circuit containing
very low inductance and resistance with d.c. or capacitor discharged applied voltage.

– 4 – IEC 60269-4:2009/AMD2:2016
© IEC 2016
7.4 Operation
Delete, in the 1st sentence of Subclause 7.4, "(see 8.4.3.4)".
Replace, at the beginning of the first indent, "its fuse-element"
by
"it"
8.3.3 Measurement of power dissipation of the fuse-link
Replace the first sentence of 8.3.3 with the following new text:
In addition to 8.3.3 of IEC 60269-1, the following applies: the power dissipation test shall be
made successively at least at 50 % and at 100 % of rated current. This test may be performed
with either ac or dc.
Add, after Subclause 8.3.3, the following new subclause and table:
8.3.4 Test method
The cross-sectional area of copper conductors for high current ratings tests corresponding to
Subclauses 8.3 and 8.4 is defined in Table 107.
...