SIST EN 60127-3:2015/A1:2020
(Amendment)Miniature fuses - Part 3: Sub-miniature fuse-links
Miniature fuses - Part 3: Sub-miniature fuse-links
Geräteschutzsicherungen - Teil 3: Kleinstsicherungseinsätze
Coupe-circuit miniatures - Partie 3: Éléments de remplacement subminiatures
Miniaturne varovalke - 3. del: Subminiaturni taljivi vložki
General Information
Relations
Overview
SIST EN 60127-3:2015/A1:2020 is a European standard issued by the European Committee for Electrotechnical Standardization (CLC) focusing on miniature fuses, specifically sub-miniature fuse-links. This amendment, approved in 2020, supplements the Part 3 standard of IEC 60127 and details the specifications, testing procedures, and marking requirements for sub-miniature fuse-links with optional DC ratings. The standard applies primarily to fuse-links used for protecting electrical appliances and electronic equipment, typically installed on printed circuit boards and intended for indoor use.
Adherence to SIST EN 60127-3:2015/A1:2020 ensures compliance with essential safety and performance criteria for overcurrent protection components, supporting manufacturers and end-users in guaranteeing product reliability and safety under electrical stress.
Key Topics
Scope and Application
The standard covers sub-miniature fuse-links designed to protect electronic devices and components. It gives detailed test methods for devices with DC rated voltage and current breaking capacities.Test Requirements and Procedures
Additional tests are specified, requiring 15 random samples per fuse-link type subjected to various overcurrent levels up to 250 times the rated current. Tests assess breaking capacity, insulation resistance, and performance under DC load. Testing mandates using a calibrated setup to simulate prospective fault conditions, with strict limits on phenomena such as contact fusing, marking illegibility, piercing, scorching, or structural failure.Marking and Identification
Fuse-links must be marked not only with conventional ratings but also with the DC rated breaking capacity (in amperes or kiloamperes) and DC rated voltage. This information is vital for correct application and traceability in equipment.Electrical Performance Criteria
Fuse-links must safely interrupt rated and fault currents without danger to surroundings. Recovery voltage must remain stable, typically 1.02 to 1.05 times the rated voltage after operation. Insulation resistance post-operation must exceed 0.1 MΩ at twice the rated voltage, ensuring insulation integrity.Time Constants and Test Circuits
The standard defines appropriate time constants for various current ranges (from under 100 A to up to 1500 A) during test simulation. Typical test circuits using inductors, resistors, and switches replicate realistic electrical fault conditions for testing the fuse’s breaking capacity.
Applications
Electrical Appliance Protection
Used extensively in household and commercial electrical devices to protect against overcurrent conditions, preventing damage to components and fire hazards.Printed Circuit Board (PCB) Integration
Designed for compact installation on PCBs in electronic devices to ensure miniature, reliable overcurrent protection without occupying excessive space.Electronic Equipment Safety
Supports compliance with safety and functionality requirements across consumer, industrial, and professional electronics by ensuring fuse-links interrupt faults efficiently and safely.DC Circuit Protection
With optional DC ratings, these sub-miniature fuse-links are suitable for protecting devices and components in direct current applications such as telecommunications, automotive electronics, and renewable energy systems.
Related Standards
EN 60127-1: Miniature fuses - Part 1: General requirements
Provides the foundational requirements and definitions for miniature fuses, referenced within Part 3 for testing and marking rules.IEC 60127 Series:
The international IEC 60127 standard series covers all aspects of miniature fuses, including other parts addressing fuse-links in different sizes and functions.National Standards Incorporating SIST EN 60127-3:2015/A1:2020
CENELEC members in European countries adopt this amendment as a harmonized national standard, facilitating consistent fuse-link safety compliance across markets.
Keywords: SIST EN 60127-3:2015/A1:2020, sub-miniature fuse-links, miniature fuses, DC rated fuse-links, fuse testing, electrical safety standards, CLC, overcurrent protection, breaking capacity, insulation resistance, fuse marking, electrical appliance protection, PCB fuses, electronic equipment safety.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2020
Miniaturne varovalke - 3. del: Subminiaturni taljivi vložki
Miniature fuses - Part 3: Sub-miniature fuse-links
Geräteschutzsicherungen - Teil 3: Kleinstsicherungseinsätze
Coupe-circuit miniatures - Partie 3: Éléments de remplacement subminiatures
Ta slovenski standard je istoveten z: EN 60127-3:2015/A1:2020
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 60127-3:2015/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2020
ICS 29.120.50
English Version
Miniature fuses - Part 3: Sub-miniature fuse-links
(IEC 60127-3:2015/A1:2020)
Coupe-circuit miniatures - Partie 3: Éléments de Geräteschutzsicherungen - Teil 3:
remplacement subminiatures Kleinstsicherungseinsätze
(IEC 60127-3:2015/A1:2020) (IEC 60127-3:2015/A1:2020)
This amendment A1 modifies the European Standard EN 60127-3:2015; it was approved by CENELEC on 2020-08-26. 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,
Turkey 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60127-3:2015/A1:2020 E
European foreword
The text of document 32C/586/FDIS, future IEC 60127-3/A1, prepared by SC 32C "Miniature fuses" of
IEC/TC 32 "Fuses" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-05-26
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-08-26
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.
Endorsement notice
The text of the International Standard IEC 60127-3:2015/A1:2020 was approved by CENELEC as a
European Standard without any modification.
IEC 60127-3 ®
Edition 3.0 2020-07
INTERNATIONAL
STANDARD
AMENDMENT 1
Miniature fuses –
Part 3: Sub-miniature fuse-links
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.50 ISBN 978-2-8322-8652-4
– 2 – IEC 60127-3:2015/AMD1:2020
© IEC 2020
FOREWORD
This amendment 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:
FDIS Report on voting
32C/586/FDIS 32C/589/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 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.
_____________
Add, at the end of Clause 10, the following new text:
Addition of the following new Annex A:
IEC 60127-3:2015/AMD1:2020 – 3 –
© IEC 2020
Annex A
(normative)
Sub-miniature fuse-links according to standard sheet 3 and 4
with optional DC ratings
A.1 General
This annex supplements the requirem
...
Frequently Asked Questions
SIST EN 60127-3:2015/A1:2020 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Miniature fuses - Part 3: Sub-miniature fuse-links". This standard covers: Miniature fuses - Part 3: Sub-miniature fuse-links
Miniature fuses - Part 3: Sub-miniature fuse-links
SIST EN 60127-3:2015/A1:2020 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 60127-3:2015/A1:2020 has the following relationships with other standards: It is inter standard links to SIST EN 60127-3:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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