SIST EN IEC 60127-8:2019/A1:2025
(Amendment)Miniature fuses - Part 8: Fuse resistors with particular overcurrent protection
Miniature fuses - Part 8: Fuse resistors with particular overcurrent protection
Geräteschutzsicherungen - Teil 8: Sicherungswiderstände für Teilbereichsschutz
Coupe-circuit miniatures - Partie 8: Résistances de protection avec protection particulière contre les surintensités
Miniaturne varovalke - 8. del: Varovalčni upori s posebno nadtokovno zaščito
General Information
Relations
Overview
EN IEC 60127-8:2018/A1:2024 (CLC) is the amendment to the miniature fuses series that specifically covers fuse resistors with particular overcurrent protection. This document clarifies function, marking, construction and test requirements for components that are designed to safely interrupt short‑circuit currents but are not capable of interrupting overload currents. It is intended for use by manufacturers, designers and test laboratories working with miniature fuse resistors in electrical and electronic equipment.
Key Topics and Requirements
- Function and limitations
- Fuse resistors with particular overcurrent protection can interrupt short‑circuit currents but must be paired with separate overload protection (e.g., miniature fuses) where overloads are possible.
- These products are not intended to be replaced by end‑users of appliances.
- Performance and testing
- Breaking capacity requirement: tested to interrupt a prospective current of 35 A at rated voltage (not less than AC 250 V / DC 250 V).
- Recovery voltage: between 1.02 and 1.05 times rated voltage and maintained for 30 s after operation.
- Functioning characteristic at (23 ± 1) °C: breaking dissipation adjusted to ±1% of the specified value; initial load for adjustment is 16× rated dissipation.
- Temperature and timing limits: terminal temperature rise limit (measured where terminations enter the test board) ≤ 157 K (with typical solders) and operating time ≤ 60 s as an additional constraint.
- Construction and assembly
- Copper layer nominal thickness: 0.035 mm for rated dissipation < 5 W; 0.070 mm for 5 W–10 W.
- Test board and footprint dimensions specified for through‑hole and surface‑mount variants (e.g., track spacing and widths).
- Marking and documentation
- Packing must show rated resistance (with Ω or mΩ), rated voltage, rated dissipation P and minimum breaking dissipation at 23 ± 1 °C.
- Manufacturers must ensure compliance with applicable resistor standards.
Applications and Who Uses It
- Component manufacturers producing fuse resistors for consumer electronics, industrial controls, power supplies and lighting.
- Design and hardware engineers integrating overcurrent protection into PCBs where combined resistor/fuse behavior is required.
- Test laboratories and conformity assessors performing type tests, safety verification and product certification.
- Compliance officers and procurement teams specifying parts to meet miniature fuse safety and performance expectations.
Related Standards
- IEC 60127 series (general miniature fuse standards), including parts referenced for accompanying protection: IEC 60127‑1, ‑2, ‑3, ‑4, ‑7.
- Resistor standards referenced for manufacturer responsibility: IEC 60115‑1 (and related documents; amendment notes indicate IEC 60115‑4‑101/102 were withdrawn).
Keywords: miniature fuses, fuse resistors, overcurrent protection, EN IEC 60127-8:2018/A1:2024, breaking capacity, rated dissipation, test requirements, CENELEC, component testing.
Frequently Asked Questions
SIST EN IEC 60127-8:2019/A1:2025 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Miniature fuses - Part 8: Fuse resistors with particular overcurrent protection". This standard covers: Miniature fuses - Part 8: Fuse resistors with particular overcurrent protection
Miniature fuses - Part 8: Fuse resistors with particular overcurrent protection
SIST EN IEC 60127-8:2019/A1:2025 is classified under the following ICS (International Classification for Standards) categories: 29.120.50 - Fuses and other overcurrent protection devices. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 60127-8:2019/A1:2025 has the following relationships with other standards: It is inter standard links to SIST EN IEC 60127-8:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2025
Miniaturne varovalke - 8. del: Varovalčni upori s posebno nadtokovno zaščito
Miniature fuses - Part 8: Fuse resistors with particular overcurrent protection
Geräteschutzsicherungen - Teil 8: Sicherungswiderstände für Teilbereichsschutz
Coupe-circuit miniatures - Partie 8: Résistances de protection avec protection
particulière contre les surintensités
Ta slovenski standard je istoveten z: EN IEC 60127-8:2018/A1:2024
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60127-8:2018/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM September 2024
ICS 29.120.50
English Version
Miniature fuses - Part 8: Fuse resistors with particular
overcurrent protection
(IEC 60127-8:2018/AMD1:2024)
Coupe-circuit miniatures - Partie 8: Résistances de Geräteschutzsicherungen - Teil 8: Sicherungswiderstände
protection avec protection particulière contre les für Teilbereichsschutz
surintensités (IEC 60127-8:2018/AMD1:2024)
(IEC 60127-8:2018/AMD1:2024)
This amendment A1 modifies the European Standard EN IEC 60127-8:2018; it was approved by CENELEC on 2024-08-21. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60127-8:2018/A1:2024 E
European foreword
The text of document 32C/638/FDIS, future edition 1 of IEC 60127-8/AMD1, prepared by SC 32C
"Miniature fuses" of IEC/TC 32 "Fuses" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 60127-8:2018/A1:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-05-21
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-08-21
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60127-8:2018/AMD1:2024 was approved by CENELEC as
a European Standard without any modification.
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
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate 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 of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National 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, 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 the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch or
www.iso.org/patents. IEC shall not be held responsible for identifying any or all such patent rights.
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 devel
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