IEC 60127-8:2018/AMD1:2024
(Amendment)Amendment 1 - Miniature fuses - Part 8: Fuse resistors with particular overcurrent protection
Amendment 1 - Miniature fuses - Part 8: Fuse resistors with particular overcurrent protection
Amendement 1 - Coupe-circuit miniatures - Partie 8: Résistances de protection avec protection particulière contre les surintensités
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IEC 60127-8 ®
Edition 1.0 2024-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Miniature fuses –
Part 8: Fuse resistors with particular overcurrent protection
Coupe-circuit miniatures –
Partie 8: Résistances de protection avec protection particulière contre les
surintensités
IEC 60127-8:2018-06/AMD1:2024-07(en-fr)
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IEC 60127-8 ®
Edition 1.0 2024-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Miniature fuses –
Part 8: Fuse resistors with particular overcurrent protection
Coupe-circuit miniatures –
Partie 8: Résistances de protection avec protection particulière contre les
surintensités
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-9298-3
– 2 – IEC 60127-8:2018/AMD1:2024
© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MINIATURE FUSES –
Part 8: Fuse resistors with particular overcurrent protection
AMENDMENT 1
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
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in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
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Amendment 1 to IEC 60127-8:2018 has been prepared by subcommittee 32C: Miniature fuses,
of IEC technical committee 32: Fuses.
The text of this Amendment is based on the following documents:
Draft Report on voting
32C/638/FDIS 32C/642/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.
© IEC 2024
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications/.
A list of all parts in the IEC 60127 series, published under the general title Miniature fuses, can
be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
___________
INTRODUCTION
Replace the existing third paragraph of the Introduction with the following new text:
Fuse resistors with particular overcurrent protection can safely interrupt short-circuit currents
but are not capable of interrupting overload currents.
1 Scope
Replace the existing fourth paragraph of the Scope with the following new text:
With exceptions of 3.5 and 3.8 of IEC 60127-1:2023, manufacturers of fuse resistors with
particular overcurrent protection shall ensure on their own responsibility that their products
comply with the requirements of the resistor-related standards IEC 60115-1, IEC 60115-4-101
and IEC 60115-4-102 .
Add the following new text before the existing last paragraph of the Scope:
Fuse resistors with particular overcurrent protection are not intended to be replaced by the end-
user of an electrical / electronic appliance.
3 Terms and definitions
Replace the existing first paragraph of Clause 3 with the following text:
With the exceptions of 3.5 and 3.8 of IEC 60127-1:2023, for the purposes of this document, the
terms and definitions given in Clause 3 of IEC 60127-1:2023 as well as resistor-related
standards IEC 60115-1, IEC 60115-4-101 and IEC 60115-4-102, and the following apply.
___________
IEC 60115-4-101 and IEC 60115-4-102 have been withdrawn.
– 4 – IEC 60127-8:2018/AMD1:2024
© IEC 2024
3.1
Replace the existing Note 1 to entry with the following new text:
Note 1 to entry: Fuse resistors with particular overcurrent protection can safely interrupt short-circuit currents but
are not capable of interrupting overload currents. They are therefore allowed to be used only in combination with an
accompanying overload current protection device such as a miniature fuse according to IEC 60127-2, −3, −4 and −7,
if overload currents cannot be excluded to occur in the respective application.
3.5
Replace the existing Note 1 to entry with the following new text:
Note 1 to entry: At an ambient temperature of (23±1) °C the maximum voltage which may be applied across the
terminations of a fuse resistor with particular overcurrent protection is either the calculated rated voltage, if the
resistance is less than the critical resistance, or the limiting element voltage, if the resistance is equal to or greater
than the critical resistance. At temperatures other than (23±1) °C it is important that account be taken of the derating
curve and of the limiting element voltage in the calculation of any voltage to be applied.
3.8
Delete the existing term, definition and notes of Subclause 3.8, rated dissipation, P .
3.9
Replace the existing Note 1 to entry with the following new text:
Note 1 to entry: The rated temperature has a value of (23±1) °C, unless otherwise prescribed in IEC 60115-1.
6 Marking
6.3
Replace the existing first paragraph of 6.3 with the following new text:
The marking according to 6.1 shall also be printed on the packing together with a reference to
this document. The marking of the rated resistance on the packing shall include the abbreviation
Ω or mΩ. In addition, the marking of the rated voltage, rated dissipation P and minimum
23±1 °C
breaking dissipation shall be printed on the packing.
6.4
Replace the existing text of 6.4 with the following new text:
For colour coding, tests and requirements are under consideration.
7 General notes on tests
7.3.2 General requirements
Replace the existing text of the second bullet point of the second paragraph of 7.3.2 with the
following new bullet point and text:
• The nominal thickness o
...
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