IEC 60269-3:2010/AMD2:2019

IEC 60269-3 ®
Edition 4.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 2
AM ENDEMENT 2
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
IEC 60269-3:2010-05/AMD2:2019-06(en-fr)

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IEC 60269-3 ®
Edition 4.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 2
AM ENDEMENT 2
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
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-6875-9

– 2 – IEC 60269-3:2010/AMD2:2019
© IEC 2019
FOREWORD
This amendment has been prepared by subcommittee 32B: Low-voltage fuses, of IEC technical
committee 32: Fuses
The text of this amendment is based on the following documents:
CDV Report on voting
32B/650/CDV 32B/666/RVC
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• withdrawn,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.
IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

_____________
CONTENTS
In the list of figures, add, between Figure 103 and Figure 104, the following new line:
"Figure 127 – Time-current zone for "gG" fuse-links 40 A"
In the list of tables, replace "Table B.1" with "Table BB.1".

Fuse system A – D-type fuse system
Table 101 – Maximum values of power dissipation
Add, between the values 35 and 50, the following new line:
40 4,4 5,7
© IEC 2019
a
In the first column, replace "35 " with "35".
Delete table footnote a.
5.6.1 Time-current characteristics, time-current zones and overload curves
In the first and second paragraphs, replace:
"Figures 101 to 103"
with:
"Figures 101 to 103 and Figure 127".

7.1.3 Fuse-contacts
In the second paragraph, replace:
"Fuse-link contacts of rated currents 50 A and above shall ."
with:
"Fuse-link contacts of rated currents 50 A and above and fuse-link contacts of D02 fuse-links
of rated currents 32 A up to 40 A shall .".

Table 108 – I t values for the discrimination with circuit breakers
Replace the values of 32A-type, added by Amendment 1, as follows:
32 1 400 1 180
Add, between the values 35 and 50, the following new line:
40 2 500 1 580
8.3.3 Measurement of the power dissipation of the fuse-link
Replace:
"The power dissipation shall be measured between the end caps of the fuse-link (see
Figure 109)."
with:
"The points at which the power dissipation is measured are marked with B and C in Figure 109."

– 4 – IEC 60269-3:2010/AMD2:2019
© IEC 2019
8.3.4.1 Temperature rise of the fuse-holder
Replace:
"The test shall be made with a dummy fuse-link as specified in Figure 104 for the rated current
of the fuse-holder (see Figure 109)."
with:
"The test shall be made with a dummy fuse-link as specified in Figure 104 for the rated current
of the fuse-holder. The points at which the temperature rise is measured are marked with A and
D in Figure 109."
8.3.5 Acceptability of test results
Replace, in the second paragraph, "Table 114" with "Table 101".

8.10.2 Test method
Replace, in the tenth paragraph:
"The points between which the voltage drop is measured are marked A, B, C and D in
Figure 109."
with:
"Measuring points are marked in Figure 109."

Add, after Figure 103, the following new figure:

© IEC 2019
Figure 127 – Time-current zone for "gG" fuse-links 40 A
Figure 109 – Measuring points for the voltage drop (B, C) or the temperature rise (A, D)
Replace the figure title with the following new title:
"Figure 109 – Measuring points according to 8.3.3, 8.3.4.1 and 8.10.2 of fuse system A"

– 6 – IEC 60269-3:2010/AMD2:2019
© IEC 2019
Figure 110 – Fuse-link, D-type. Sizes D01-D03
Replace the two drawings in Figure 110 with the following three drawings:

Delete, for D02 and under value 35, "(note 3)".
Add, for D02 and between the values 35 and 50, the following new line:
40   13,3   13,8   15,3   10   16,7 (max)  18,5   36   1
−0,8
Delete NOTE 3 completely.
© IEC 2019
Figure 111 – Fuse-link, D-type. Sizes DII-DIV
Replace the present upper left drawing with the following new drawing:

Delete, in the first table, row DIII, value 35, "(3)".
Add, in the first table, row DIII, between the values 35 and 50, the following new line:
40   16   ±0,2   18 ± 0,2   15 min   28   –   –
−2
Delete, in the second table, first column, "(note 3)".
Add, in the second table, between the values 35 and 50, the following new line:
40 Green
Delete NOTE 3 completely.
– 8 – IEC 60269-3:2010/AMD2:2019
© IEC 2019
Figure 121 – Gauge-piece and hand-key, D-type. Sizes D01-D03
Add, in the table, row D02, between the values 35 and 50, the following new line:
40   15,1   16,6
Add the following drawing in Figure 121:

Gauge-piece 40A
© IEC 2019
Figure 122 – Gauge-piece and hand-key, D-type. Sizes DII-DIV
Replace existing figures of screw-in gauge-piece DII/III by the following figures:

– 10 – IEC 60269-3:2010/AMD2:2019
© IEC 2019
Replace existing figures of working head of hand-key by the following figures:

Add, in the table header row, columns b and b , "mm".
1 2
Delete, in table row DIII, between the values 35 and 50, "(note 1)".
Add, in table row DIII, between the values 35 and 50, the following new line:
+0,6
40  18,5     15  15  30  26  25
Delete NOTE 1 completely.
© IEC 2019
Figure 123 – Gauge-piece and hand-key, D-type push-in gauge rings. Size DII-DIII
Replace existing drawings by the following new drawings:
Gauge-piece DII/DIII
Delete, in table row DIII, value 35, "(see Note 1)".
Add, in table row DIII, between the values 35 and 50, the following new line:
40 see figure Green
Delete NOTE 1 completely.
– 12 – IEC 60269-3:2010/AMD2:2019
© IEC 2019
Fuse system B – Cylindrical fuses (NF cylindrical fuse system)
Table 201 – Maximum values of rated power dissipation and values of rated acceptable
power dissipation
Replace, in the first column, second line, "8,3 × 23" with "8,5 × 23".

Figure 201 – Fuse-link
+09,
Replace, in the fourth column, sixth line of the table, "38,0 ± 0,6" with " 38 ".
−06,
Fuse system C – Cylindrical fuses (BS cylindrical fuse system)
8.10.1 Arrangement of the fuse
Delete the second paragraph:
"The test shall be made in accordance with 8.3.4.1 of IEC 60269-1 by using fuse-links as given
in Figure 301 as dummy fuse-links."

Fuse system F – Cylindrical fuse-links for use in plugs (BS plugtop system)
Table 606 – Values for breaking-capacity tests
Replace, in table footnote *, "Table B.1" with "Table BB.1".

___________
– 14 – IEC 60269-3:2010/AMD2:2019
© IEC 2019
AVANT-PROPOS
Le présent amendement a été établi par le sous-comité 32B: Coupe-circuits à fusibles à basse
tension, du comité d'études 32 de l'IEC: Coupe-circuits à fusibles.
Le texte de cet amendement est issu des documents suivants:
CDV Rapport de vote
32B/650/CDV 32B/666/RVC
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à l'approbation de cet amendement.
Le comité a décidé que le contenu de cet amendement et de la publication de base ne sera pas
modifié avant la date de stabilité indiquée sur le site web de l'IEC sous "http://webstore.iec.ch"
dans les données relatives à la publication recherché
...