IEC 60127-4:1996/AMD2:2003
(Amendment)Amendment 2 - Miniatures fuses - Part 4: Universal Modular Fuse-Links (UMF)
Amendment 2 - Miniatures fuses - Part 4: Universal Modular Fuse-Links (UMF)
Related to changes in Clauses 7.2, 9.1 and Tables 3 and 4
Amendement 2 - Coupe-circuit miniatures - Partie 4: Eléments de remplacement modulaires universels (UMF)
Concerne changements dans paragraphes 7.2, 9.1 and Tableaux 3 et 4
General Information
- Status
- Published
- Publication Date
- 17-Jul-2003
- Technical Committee
- SC 32C - Miniature fuses
- Drafting Committee
- WG 5 - TC 32/SC 32C/WG 5
- Current Stage
- DELPUB - Deleted Publication
- Start Date
- 27-Jan-2005
- Completion Date
- 26-Oct-2025
Relations
- Effective Date
- 05-Sep-2023
Overview
IEC 60127-4:1996/AMD2:2003 is the second amendment to the international standard that defines requirements for Miniature Fuses - specifically Part 4, which covers Universal Modular Fuse-Links (UMF). Prepared by IEC subcommittee 32C under technical committee 32 (Fuses), this amendment updates critical clauses related to type testing procedures, electrical requirements, and testing schedules for UMF fuse-links.
The amendment introduces detailed changes in:
- Clause 7.2 (Type Tests),
- Clause 9.1 (Voltage Drop measurement),
- and the testing schedules outlined in Tables 3 and 4.
These amendments ensure the harmonization of testing methods and performance criteria for UMF links designed for both alternating current (a.c.) and direct current (d.c.) applications. This standard governs the required quantities, testing conditions, and classification of miniature fuse-links to ensure compliance with safety and performance expectations globally.
Key Topics
Type Testing Procedures (Clause 7.2):
The amendment revises type testing requirements, specifying:- Distinct test quantities for fuse-links rated for both a.c. and d.c. currents versus those rated only for a.c.
- Minimum sample sizes to ensure statistically significant testing, including numbers kept as spares.
- Reference to standard normative sheets for testing individual, maximum, and minimum ampere ratings.
Voltage Drop Measurement (Clause 9.1):
Updates specify precise measurement points for voltage drop across fuse-link terminals, differing between:- Through-hole mounted fuse-links (Figure 2),
- Surface mount fuse-links (Figure 3),
Both using the test fuse-base depicted in Figure 4 for standardized testing.
Testing Schedules (Tables 3 and 4):
Newly introduced tables standardize test programs for:- Maximum ampere rating in homogeneous fuse-link series (Table 3),
- Minimum ampere rating in homogeneous fuse-link series (Table 4).
These schedules detail mandatory electrical and mechanical performance tests such as:
- Temperature rise, endurance, and power dissipation testing,
- Time/current characteristics verification,
- Rated breaking capacity for both a.c. and d.c.,
- Insulation resistance, solderability, and heat resistance.
Sample Handling and Selection:
The amendment clarifies the process for random selection of samples and their classification based on voltage drop values to maintain test consistency.
Applications
The standard amendment applies directly to manufacturers, test laboratories, quality assurance engineers, and product developers working with miniature fuses in various sectors:
Electronics and Electrical Equipment Manufacturing:
Ensures the reliable design and production of UMF fuse-links used in printed circuit boards, protecting sensitive electronic devices from overcurrent and short circuits.Automotive and Transportation Industries:
Facilitates the use of miniature fuse-links in vehicle electrical systems, where both a.c. and d.c. currents are present, requiring robust safety components that conform to recognized international standards.Energy and Power Distribution:
Provides guidelines for fuse-links applied in compact energy control panels, power converters, and renewable energy systems, ensuring safety in diverse operating conditions.Testing Laboratories and Certification Bodies:
Utilizes updated testing criteria and sample sizes for compliance verification to IEC standards, supporting certification and market access.
Related Standards
IEC 60127 Series:
This amendment belongs to the broader IEC 60127 family of standards covering miniature fuses, including:- Part 1: General requirements,
- Part 2: Cartridge fuse-links,
- Part 3: Sub-miniature fuse-links,
- Parts covering other fuse types and testing methodology.
IEC 60127-1:
Contains foundational subclauses referenced in the amendment, such as soldered joint endurance and marking requirements.General IEC Testing Standards:
Complementary standards for electrical safety testing and component performance may apply depending on product use and regional regulations.
This amendment reinforces the IEC 60127-4 standard’s role in establishing uniform testing and performance benchmarks for Universal Modular Fuse-Links. Adherence ensures the quality, safety, and reliability of miniature fuses used worldwide, supporting manufacturers and users in meeting global compliance and enhancing product safety.
Frequently Asked Questions
IEC 60127-4:1996/AMD2:2003 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Amendment 2 - Miniatures fuses - Part 4: Universal Modular Fuse-Links (UMF)". This standard covers: Related to changes in Clauses 7.2, 9.1 and Tables 3 and 4
Related to changes in Clauses 7.2, 9.1 and Tables 3 and 4
IEC 60127-4:1996/AMD2:2003 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.
IEC 60127-4:1996/AMD2:2003 has the following relationships with other standards: It is inter standard links to IEC 60127-4:2005. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase IEC 60127-4:1996/AMD2:2003 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of IEC standards.
Standards Content (Sample)
NORME CEI
INTERNATIONALE IEC
60127-4
INTERNATIONAL
STANDARD
AMENDEMENT 2
AMENDMENT 2
2003-07
Amendement 2
Coupe-circuit miniatures –
Partie 4:
Eléments de remplacement modulaires
universels (UMF)
Amendment 2
Miniature fuses –
Part 4:
Universal Modular Fuse-links (UMF)
IEC 2003 Droits de reproduction réservés Copyright - all rights reserved
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
E
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
Международная Электротехническая Комиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
– 2 – 60127-4 amend. 2 CEI:2003
AVANT-PROPOS
Le présent amendement a été établi par le sous-comité 32C: Coupe-circuit à fusibles
miniatures, du comité d'études 32 de la CEI: Coupe-circuit à fusibles.
Le texte de cet amendement est issu des documents suivants:
FDIS Rapport de vote
32C/336/FDIS 32C/343/RVD
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 la publication de base et de ses amendements ne sera
pas modifié avant 2004. A cette date, la publication sera
• reconduite;
• supprimée;
• remplacée par une édition révisée, ou
• amendée.
_____________
Page 12
7 Généralités sur les essais
7.2 Essais de type
Remplacer le texte existant de 7.2.1 par ce qui suit:
Pour les essais des courants assignés individuels des fusibles selon les feuilles de norme 1
et 2, voir le tableau 1. Pour des éléments de remplacement définis et assignés à la fois pour
les courants alternatif et continu, le nombre d'éléments de remplacement requis est de 63.
Pour des éléments de remplacement définis uniquement pour le courant alternatif, le nombre
d'éléments de remplacement requis est de 48. Neuf sont gardés en réserve.
Pour le courant assigné maximal d'une série homogène selon les feuilles de norme 1 et 2,
voir le tableau 3. Pour des éléments de remplacement définis et assignés à la fois pour les
courants alternatif et continu, le nombre d'éléments de remplacement requis est de 53. Pour
des éléments de remplacement définis uniquement pour le courant alternatif, le nombre
d'éléments de remplacement requis est de 48. 19 sont gardés en réserve.
Pour le courant assigné minimal d’une série homogène selon les feuilles de norme 1 et 2, voir
le tableau 4. Pour des éléments de remplacement définis et assignés à la fois pour les
courants alternatif et continu, le nombre d'éléments de remplacement requis est de 38. Pour
des éléments de remplacement définis uniquement pour le courant alternatif, le nombre
d'éléments de remplacement requis est de 33. 16 sont gardés en réserve.
60127-4 Amend. 2 IEC:2003 – 3 –
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/336/FDIS 32C/343/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 the base publication and its amendments will
remain unchanged until 2004. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
_____________
Page 13
7 General notes on tests
7.2 Type tests
Replace the existing subclause 7.2.1 by the following:
For testing of individual fuse ratings according to standard sheets 1 and 2 see table 1. For
fuse-links, designed and rated both for a.c. and d.c., the number of fuse-links required is 63.
For fuse-links designed only for a.c., the number of fuse-links required is 48. There are nine
spares.
For the maximum ampere rating of a homogeneous series according to standard sheets 1
and 2 see table 3. For fuse-links, designed and rated both for a.c. and d.c., the number of
fuse-links required is 53. For fuse-links designed only for a.c., the number of fuse-links
required is 48. There are 19 spares.
For the minimum ampere rating of a homogeneous series according to standard sheets 1 and
2 see table 4. For fuse-links, designed and rated both for a.c. and d.c., the number of fuse-
links required is 38. For fuse-links designed only for a.c., the number of fuse-links required
is 33. There are 16 spares.
– 4 – 60127-4 amend. 2 CEI:2003
Page 22
9 Prescriptions d'ordre électrique
9.1 Chute de tension
Remplacer le second alinéa par ce qui suit:
La chute de tension doit être mesurée aux points marqué
...
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