IEC 60269-1:2006/AMD2:2014

Amendment 2 - Low-voltage fuses - Part 1: General requirements

Amendement 2 - Fusibles basse tension - Partie 1: Exigences générales

General Information

• Status: Published
• Publication Date: 29-Jun-2014
• 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 8 - TC 32/SC 32B/MT 8

Relations

• Amends: IEC 60269-1:2006 - Low-voltage fuses - Part 1: General requirements
• Effective Date: 05-Sep-2023
• Revised: IEC 60269-1:2024 - Low-voltage fuses - Part 1: General requirements
• Effective Date: 07-Jun-2024

Standards Content (Sample)

IEC 60269-1 ®
Edition 4.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Low-voltage fuses –
Part 1: General requirements
Fusibles basse tension –
Partie 1: Exigences générales
IEC 60269-1:2006-11/AMD2:2014-06(en-fr)

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IEC 60269-1 ®
Edition 4.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Low-voltage fuses –
Part 1: General requirements
Fusibles basse tension –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX G
ICS 29.120.50 ISBN 978-2-8322-1637-8

– 2 – IEC 60269-1:2006/AMD2:2014
© IEC 2014
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:
FDIS Report on voting
32B/626/FDIS 32B/628/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 web site 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• withdrawn,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.
_____________
Throughout the standard:
In the notes to Tables and Figures delete references to previous editions of IEC 60269.

Foreword
Delete the "Notes" to the text concerning Part 1 to 5.
Add, after the text concerning Part 5:
Part 6: Supplementary requirements for fuse-links for the protection of solar photovoltaic
energy systems
1.2 Normative references
Add the following new references:
IEC 60228:2004, Conductors of insulated cables
IEC 60269-6, Low-voltage fuses – Part 6: Supplementary requirements for fuse-links for the
protection of solar photovoltaic energy systems

© IEC 2014
Replace “IEC 60695-2-10:2000, Fire hazard testing – Part 2: Test methods – Section 1/sheet
0: Glow-wire test methods – General”
by “IEC 60695-2-10, Fire Hazard testing – Part 2-10: Glowing/hot-wire based test methods –
Glow-wire apparatus and common test procedure”
Replace "IEC 60695-2-11:2000, Fire hazard testing – Part 2: Test methods – Section 1/sheet
1: Glow-wire end-product test and guidance"
by "IEC 60695-2-11:2000, Fire hazard testing – Part 2-11: Glowing/hot-wire based test
methods – Glow-wire flammability test method for end-products"
Replace "IEC 60695-2-12:2000, Fire hazard testing – Part 2: Test methods – Section 1/sheet
2: Glow-wire flammability test on materials"
by "IEC 60695-2-12:2010, Fire hazard testing – Part 2-12: Glowing/hot-wire based test
methods – Glow-wire flammability index (GWFI) test method for materials"
Replace "IEC 60695-2-13:2000, Fire hazard testing – Part 2: Test methods – Section 1/sheet
3: Glow-wire ignitability test on materials"
by "IEC 60695-2-13:2010, Fire hazard testing – Part 2-13: Glowing/hot-wire based test
methods – Glow-wire ignition temperature (GWIT) test method for materials"

5.2 Rated voltage
In Table 1 delete the asterisk after 415.
Add, at the end of the Series I column, "1 000 *" and at the end of the Series II column, "347".
Replace "For d.c., the preferred values for rated voltages are given as follows: 110* – 125* –
220* – 250*– 440* – 460 – 500 – 600* – 750 V."
by the following new text: "For d.c. the preferred values for rated voltages are given in
Table 22."
– 4 – IEC 60269-1:2006/AMD2:2014
© IEC 2014
Add, after the note, the new Table 22:
Table 22 – Preferred values of d.c. rated voltages for fuses
Series I Series II
V V
110*
220*
440* 460
600*
750*
1 000
1 200
1 500*
5.3.1 Rated current of the fuse-link
Replace Note 1 and Note 2 by the following new paragraph:
If it is necessary to choose lower values or intermediate values or higher values, these values
should be selected from the series R10 of ISO 3, and in exceptional cases, from R20 or R40
of ISO 3.
Add 35 as a new value between 32 and 40.

5.6.2 Conventional times and currents
Replace the first paragraph by the following:
The conventional times and currents for "gG" and "gM" fuse-links are given in Table 2.

Table 2 – Conventional time and current for "gG" and "gM" fuse-links
Replace, in the heading of Table 2, "for "gG" and "gM" fuse-links"
by the following new text: "gG", "gK" and "gM" fuse-links".

5.6.3 Gates
Table 3 – Gates for specified pre-arcing times of "gG" and "gM" fuse-links
Replace, in the heading of Table 3, "for "gG" and "gM" fuse-links"

© IEC 2014
by the following new text: "gG", "gK" and "gM" fuse-links".
Add a new row for 35 A after the row for 32 A.
1 2 3 4 5
c
I for "gG" I (10 s) I (5 s) I (0,1 s) I (0,1 s)
n min max min max
I for "gM"
ch
A A A A A
35 83 175 225 445
Add at the end of Subclause 5.6.3: For "gK" fuse-links, gates are given in IEC 60269-2, fuse
system K."
5.7.1 Breaking range and utilization category
The change concerning the second paragraph applies to the French text only.
Add, in the third paragraph, the following new dashed item:
– "“gK” indicates fuse-link with a full-range breaking capacity for general application."

7.7 I t characteristics
Add at the end of the first paragraph:
"Values for "gK" fuse-links are given in IEC 60269-2, fuse system K."

Table 7 – Pre-arcing I t values at 0,01 s for "gG" and "gM" fuse-links
Add a new row for 35 A after the row for 32 A.

2 2
I for "gG" I t I t
n min max
a
I for "gM"
ch
3 2 3 2
A 10 × (A s) 10 × (A s)
35 2,2 8,0
7.8 Overcurrent discrimination of fuse-links
Replace, in the title and in the text of 7.8, "discrimination" by "selectivity".

– 6 – IEC 60269-1:2006/AMD2:2014
© IEC 2014
Table 17 – Cross-sectional area of copper conductors for tests corresponding to
Subclauses 8.3 and 8.4
Add a new row for 35 A after the row for 32 A.
Rated current Cross-sectional area
A
mm or mm × mm
35 6
Table 18 – Cross-section areas of the copper conductors for the tests of "aM" fuses
Add a new row for 35 A after the row for 32 A.

Rated current Cross-section area
A
mm or mm × mm
35 16
Table 19 – Table for test in subclause 8.4.3.5
Replace Table 19 by the following new table.
a
I of fuse-link Nominal cross-sectional I
n z
area of copper
conductors
A mm A
12 1 15
b
16 1,5 19,5
b
20 and 25 2,5 27
b
32 and 35 4 36
b
40 6 46
b
50 and 63 10 63
80 16 85
b
100 25 112
b
125 35 138
160 50 168
200 70 213
b
250 120 299
b
315 185 392
b
400 240 461
a
Current-carrying capacity I for two loaded conductors (see Table A52-2 of
z
IEC 60364-5-52).
b
For this current rating it is not necessary to perform this test as the product
1,45 I is greater than the conventional fusing current I .
z f
© IEC 2014
Table 21 – Values for breaking capacity tests on d.c. fuses
0,3 0,3
Replace, in the "Time constant" row, "0,5(I) " by "0,5(I) ms".

8.7 Verification of I t characteristics and overcurrent discrimination
Replace, in the title, "discrimination" by "selectivity".

8.7.3 Verification of compliance for fuse-links at 0,01 s
Add, at the end of the first sentence, "as shown in Clause B.1".
Replace, in the second sentence, "Annex B" by "Clause B.2".

8.7.4 Verification of overcurrent discrimination
Replace, in the title, the text and the note, "discrimination" by "selectivity".

B.1 Evaluation of the pre-arcing I t value at 0,01 s
Add, in the formula of Annex B.1, a multiplication sign × after F.
Replace "F=0,7 for "gG" and "gM" fuse-links" by "F = 0,7 for "gG", "gM" and "gK" fuse-links".

Table E.2 – Cross-sections of copper conductors connectable to terminals
Replace, in the first column of the table,
– "Above 16, up to and including 32" by "Above 16, up to and including 35"
– "Above 32, up to and including 63" by "Above 35, up to and including 63"

_____________
– 8 – IEC 60269-1:2006/AMD2:2014
© IEC 2014
AVANT-PROPOS
Le présent amendement a été établi par le sous-comité 32B: Coupe-circuit à fusibles à basse
tension, du comité d'études 32 de l’IEC: Coupe-circuit à fusibles.
Le texte de cet amendement est issu des documents suivants:
FDIS Rapport de vote
32B/626/FDIS 32B/628/RVD
Le rapport de vote indiqué dans le tableau ci-dessus d
...