HD 60269-3:2010

SLOVENSKI STANDARD
01-november-2010
1DGRPHãþD
SIST HD 60269-3:2008
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 (IEC
60269-3:2010, spremenjen)
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 60269-3:2010, modified)
Niederspannungssicherungen - Teil 3: Zusätzliche Anforderungen an Sicherungen zum
Gebrauch durch Laien (Sicherungen überwiegend für Hausinstallationen oder ähnliche
Anwendungen) - Beispiele für genormte Sicherungssysteme A bis F (IEC 60269-3:2010,
modifiziert)
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 (IEC
60269-3:2010, modifiée)
Ta slovenski standard je istoveten z: HD 60269-3:2010
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONIZATION DOCUMENT
HD 60269-3
DOCUMENT D'HARMONISATION
September 2010
HARMONISIERUNGSDOKUMENT
ICS 29.120.50 Supersedes HD 60269-3:2007

English version
Low-voltage fuses -
Part 3: Supplementary requirements for fuses for use by unskilled
persons (fuses mainly for household and similar applications) -
Examples of standardized systems of fuses A to F
(IEC 60269-3:2010, modified)
Fusibles basse tension -  Niederspannungssicherungen -
Partie 3: Exigences supplémentaires Teil 3: Zusätzliche Anforderungen
pour les fusibles destinés à être utilisés an Sicherungen zum Gebrauch
par des personnes non qualifiées (fusibles durch Laien (Sicherungen überwiegend
pour usages essentiellement domestiques für Hausinstallationen und ähnliche
et analogues) - Anwendungen) -
Exemples de systèmes de fusibles Beispiele für genormte
normalisés A à F Sicherungssysteme A bis F
(CEI 60269-3:2010, modifiée) (IEC 60269-3:2010, modifiziert)

This Harmonization Document was approved by CENELEC on 2010-09-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this
Harmonization Document at national level.

Up-to-date lists and bibliographical references concerning such national implementations may be obtained on
application to the Central Secretariat or to any CENELEC member.

This Harmonization Document exists in three official versions (English, French, German).

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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. HD 60269-3:2010 E
Foreword
The text of document 32B/553/FDIS, future edition 4 of IEC 60269-3, prepared by SC 32B, Low-voltage
fuses, of IEC TC 32, Fuses, was submitted to the IEC-CENELEC parallel vote.
A draft amendment, containing common modifications to document 32B/553/FDIS, was prepared by
Reporting Secretariat CLC/SR 32B, Low-voltage fuses, and was submitted to the formal vote.
The combined texts were approved by CENELEC as HD 60269-3 on 2010-09-01.
This Harmonization Document supersedes HD 60269-3:2007.
This document is to be used in conjunction with EN 60269-1:2007.
This Part 3 supplements or modifies the corresponding clauses or subclauses of Part 1.
Where no change is necessary, this Part 3 indicates that the relevant clause or subclause applies.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the HD has to be implemented
at national level by publication of a harmonized
(dop) 2011-09-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2013-09-01
with the HD have to be withdrawn
Annex ZA has been added by CENELEC.
__________
- 3 - HD 60269-3:2010
Endorsement notice
The text of the International Standard IEC 60269-3:2010 was approved by CENELEC as a Harmonization
Document with agreed common modifications as given below.
COMMON MODIFICATIONS
1 General scope
Replace Note 2 by:
NOTE 2 The following fuse systems are standardized systems in respect to their safety aspects. The National Committees shall
select at least one complete fuse system of this standard for their national standards. Colour codes are not specified for each fuse
system. Where colour codes are indicated, they apply only to that particular fuse system.
__________
Bibliography
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60529 NOTE  Harmonized as EN 60529.
ISO 228-1 NOTE  Harmonized as EN ISO 228-1.
ISO 228-2 NOTE  Harmonized as EN ISO 228-2.
__________
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60068-2-31 - Environmental testing - EN 60068-2-31 -
Part 2-31: Tests - Test Ec: Rough handling
shocks, primarily for equipment-type
specimens
IEC 60269-1 2006 Low-voltage fuses - EN 60269-1 2007
+ A1 2009 Part 1: General requirements + A1 2009

IEC 60664 Series Insulation coordination for equipment within EN 60664 Series
low-voltage systems
IEC 60898-1 (mod) 2002 Electrical accessories - Circuit breakers for EN 60898-1 2003
+ A1 (mod) 2002 overcurrent protection for household and + corr. February 2004
+ A2 2003 similar installations - + A1 2004
Part 1: Circuit-breakers for a.c. operation + A11 2005
+ A12 2008
1)
IEC 60999-1 (mod) 1990 Connecting devices - Safety requirements for EN 60999-1 1993
screw-type and screwless-type clamping units
for electrical copper conductors -
Part 1: General requirements and particular
requirements for conductors from 0,5 mm² up
to 35 mm² (included)
1)
EN 60999-1 is superseded by EN 60999-1:2000, which is based on IEC 60999-1:1999.

IEC 60269-3 ®
Edition 4.0 2010-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage fuses –
Part 3: Supplementary requirements for fuses for use by unskilled persons
(fuses mainly for household and 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
PRICE CODE
INTERNATIONALE
XG
CODE PRIX
ICS 29.120.50 ISBN 978-2-88910-088-0
– 2 – 60269-3 © IEC:2010
CONTENTS
FOREWORD.12
INTRODUCTION.14
1 General scope .15
1.2 Normative references .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.17
5.6.3 Gates .18
5.7 Breaking range and breaking capacity.18
5.7.2 Rated breaking capacity .18
6 Markings .18
6.4 Marking of the gauge-pieces .18
7 Standard conditions for construction.19
7.1 Mechanical design.19
7.1.2 Connections including terminals .19
7.1.3 Fuse-contacts.19
7.1.4 Construction of a gauge-piece .19
7.1.6 Construction of a fuse-carrier .20
7.1.7 Construction of a fuse-link .20
7.1.8 Non-interchangeability.20
7.1.9 Construction of a fuse-base.21
7.2 Insulating properties and suitability for isolation .21
7.3 Temperature rise, power dissipation of the fuse-link and acceptable power
dissipation of the fuse-holder.22
7.7 I t characteristics .22
7.7.1 Pre-arcing I t values.22
7.7.2 Operating I t values.23
7.8 Overcurrent discrimination of "gG" fuse-links.23
7.9 Protection against electric shock .23
8 Tests .23
8.1.4 Arrangement of the fuse and dimensions .24
8.2 Verification of the insulating properties and the suitability for isolation .25

60269-3 © IEC:2010 – 3 –
8.2.1 Arrangement of the fuse-holder .25
8.2.6 Creepage distances, clearances and distances through sealing
compound.25
8.3 Verification of temperature rise and power dissipation.25
8.3.1 Arrangement of the fuse .25
8.3.3 Measurement of the power dissipation of the fuse-link.26
8.3.5 Acceptability of test results.
...