EN 60269-4:2009/FprA3:2024

SLOVENSKI STANDARD
SIST EN 60269-4:2010/oprA3:2022
01-junij-2022
Nizkonapetostne varovalke - 4. del: Dodatne zahteve za taljive vložke za zaščito
polprevodniških naprav - Dopolnilo A3
Low-voltage fuses - Part 4: Supplementary requirements for fuse-links for the protection
of semiconductor devices
Niederspannungssicherungen - Teil 4: Zusätzliche Anforderungen an
Sicherungseinsätze zum Schutz von Halbleiter-Bauelementen
Fusibles basse tension - Partie 4: Exigences supplémentaires concernant les éléments
de remplacement utilisés pour la protection des dispositifs à semiconducteurs
Ta slovenski standard je istoveten z: EN 60269-4:2009/prA3:2022
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
SIST EN 60269-4:2010/oprA3:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 60269-4:2010/oprA3:2022

SIST EN 60269-4:2010/oprA3:2022
32B/716/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60269-4/AMD3 ED5
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-03-18 2022-06-10
SUPERSEDES DOCUMENTS:
32B/710/CD, 32B/713/CC
IEC SC 32B : LOW-VOLTAGE FUSES
SECRETARIAT: SECRETARY:
Germany Mr Michael Altenhuber
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 22
Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of CENELEC,
is drawn to the fact that this Committee Draft for Vote (CDV) is
submitted for parallel voting.
The CENELEC members are invited to vote through the CENELEC
online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

TITLE:
Amendment 3 - Low-voltage fuses - Part 4: Supplementary requirements for fuse-links for the protection of
semiconductor devices
PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:
file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions. You may not copy or
"mirror" the file or printed version of the document, or any part of it, for any other purpose without permission in writing from IEC.

SIST EN 60269-4:2010/oprA3:2022

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IEC CD 60269-4 AMD 3 IEC 2021

4 CONTENTS
5 FOREWORD . 4
6 1 General . 6
7 1.1 Scope and object . 6
8 1.2 Normative references . 7
9 2 Terms and definitions . 7
10 3 Conditions for operation in service . 8
11 4 Classification . 9
12 5 Characteristics of fuses . 10
13 6 Markings . 14
14 7 Standard conditions for construction . 15
15 8 Tests . 16
16 Annex AA (informative)  Guidance for the coordination of fuse-links with semiconductor
17 devices. 31
18 Annex BB (normative)  Survey on information to be supplied by the manufacturer in his
19 literature (catalogue) for a fuse designed for the protection  of semiconductor devices . 37
20 Annex CC (normative)  Examples of standardized fuse-links for the protection of
21 semiconductor devices . 38
22 Bibliography . 55
24 Figure 101 – Conventional overload curve (example) (X and Y are points of verified
25 overload capability) . 27
26 Figure 102 – Example of a conventional test arrangement for bolted fuse-links . 28
27 Figure 103 – Example of a conventional test arrangement for blade contact fuse-links . 30
28 Figure CC.1 – Single body fuse-links . 39
29 Figure CC.2 – Double body fuse-links . 40
30 Figure CC.3 – Twin body fuse-links . 41
31 Figure CC.4 – Striker fuse-links . 41
32 Table CC.1 – Conventional time and current for "gR" and "gS" fuse-links . 42
33 Figure CC.5 – Fuse-links with bolted connections, type B, body sizes 000 and 00 . 43
34 Figure CC.6 – Fuse-links with bolted connections, type B, body sizes 0, 1, 2 and 3. 44
35 Figure CC.7 – Bolted fuse-links, type C . 46
36 Figure CC.8 – Flush end fuse-links, type A . 48
37 Figure CC.9 – Flush end fuse-links, type B . 50
38 Figure CC.10 – Fuse-links with cylindrical contact caps, type A . 51
39 Figure CC.11 – Fuse-links with cylindrical contact caps, type B . 53

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40 Figure CC.12 – Fuse-links with cylindrical contact caps with striker, type B (additional
41 dimensions for all sizes except 10 × 38) . 54
43 Table 101 – Conventional times and currents for “gR” and “gS” fuse-links . 11
44 Table 102 – List of complete tests . 17
45 Table 103 – Survey of tests on fuse-links of the smallest rated current  of a
46 homogeneous series . 17
47 Table 104 – Values for breaking-capacity tests on AC. fuses . 23
48 Table 105 – Values for breaking-capacity tests on DC. fuses . 24
49 Table 106 – Values for breaking-capacity tests on VSI fuse-links . 26
50 Table 107 – Cross-sectional area of copper conductors for high current ratings tests . 18
51 Table CC.2 – Conventional time and current for "gR" and "gS" fuse-links . 47
52 Table CC.3 – Typical rated voltages and preferred maximum rated currents . 52
53 Table CC.4 – Conventional time and current for "gR" and "gS" fuse-links . 52
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57 INTERNATIONAL  ELECTROTECHNICAL  COMMISSION

LOW-VOLTAGE FUSES –
62 Part 4: Supplementary requirements for fuse-links
63 for the protection of semiconductor devices
66 FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
68 all national electrotechnical committees (IEC National  Committees).  The  object  of  IEC  is  to  promote international
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addition to other activities, IEC publishes International Standards, Technical  Specifications, Technical Reports, Publicly
71 Available Specifications (PAS) and Guides (hereafter referred to  as  “IEC Publication(s)”). Their preparation is
72 entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate
73 in this preparatory work. International, governmental and non- governmental  organizations  liaising with the IEC  also
participate in this  preparation.  IEC  collaborates  closely with the International Organization for Standardization (ISO)
in accordance with conditions  determined  by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus
77 of opinion on the relevant subjects since each technical committee has representation from  all interested IEC National
78 Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees
in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate,
81 IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently
to the maximum extent possible in their  national  and  regional  publications.  Any  divergence between any IEC
Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment
services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out
by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members
of its technical committees and IEC National Committees for any personal injury, property damage or other damage
of any nature whatsoever, whether direct or indirect, or for costs (including legal  fees) and expenses arising out of
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable
for the correct application of this publication.
96 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
DISCLAIMER
This Consolidated version is not an official IEC Standard and has been prepared for user
convenience. Only the current versions of the standard  and its  amendment(s) are to
be considered the official documents.

101 This Consolidated version of IEC 60269-4 bears the edition number 5.2. It consists of
102 the fifth edition (2009-05) [documents 32B/535/FDIS and 32B/541/RVD], its amendment 1
103 (2012-05) [documents 32B/579/CDV and 32B/586A/RVC] and its amendment 2 (2016-08)
104 [documents 32B/651/FDIS and 32B/663/RVD]. The technical content is identical to the
105 base edition and its amendments.

106 This  Final  version  does  not  show  where  the  technical  content  is  modified  by
107 amendments  1  and  2.  A  separate  Redline  version  with  all  changes  highlighted  is
108 available in this publication.

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109 International Standard IEC 60269-4 has been prepared by subcommittee 32B: Low-voltage
110 fuses, of IEC technical committee 32: Fuses.

111 This fifth edition constitutes a technical revision. The significant technical changes to the
112 fourth edition are:
113 • the introduction of voltage source inverter fuse-links, including test requirements;
114 • coverage of the tests on operating characteristics for AC. by the breaking capacity tests;
115 • the updating of examples of standardised fuse-links for the protection of semiconductor
116 devices.
117 This part is to be used in conjunction with IEC 60269-1:2006, Low-voltage fuses – Part 1:
118 General requirements.
119 This Part 4 supplements or modifies the corresponding clauses or subclauses of Part 1.

120 Where no change is necessary, this Part 4 indicates that the relevant clause or subclause
121 applies.
122 Tables and figures which are additional t
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