prEN IEC 60127-9:2024
(Main)Miniature fuses - Part 9: Miniature fuse-links for special applications with partial-range breaking capacity
Miniature fuses - Part 9: Miniature fuse-links for special applications with partial-range breaking capacity
Coupe-circuits miniatures - Partie 9: éléments de remplacement miniatures pour applications spéciales à pouvoir de coupure partiel
Miniaturne varovalke - 9. del: Miniaturni taljivi vložki za posebne namene z delno izklopno zmogljivostjo
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2024
Miniaturne varovalke - 9. del: Miniaturni taljivi vložki za posebne namene z delno
izklopno zmogljivostjo
Miniature fuses - Part 9: Miniature fuse-links for special applications with partial-range
breaking capacity
Coupe-circuits miniatures - Partie 9: éléments de remplacement miniatures pour
applications spéciales à pouvoir de coupure partiel
Ta slovenski standard je istoveten z: prEN IEC 60127-9:2024
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.
32C/644/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60127-9 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-08-23 2024-11-15
SUPERSEDES DOCUMENTS:
32C/626/CD, 32C/639A/CC
IEC SC 32C : MINIATURE FUSES
SECRETARIAT: SECRETARY:
China Mr Jun Cai
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
ASPECTS CONCERNED:
Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
IEC 60127-9/Ed.1: Miniature fuses – Part 9: Miniature fuse-links for special applications with partial-range
breaking capacity
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.
IEC CDV 60127-9: 2024 © IEC 2024 -2-
1 CONTENTS
2 FOREWORD . 3
3 INTRODUCTION . 4
4 1 Scope . 5
5 2 Normative references . 5
6 3 Terms and definitions . 6
7 4 General requirements . 7
8 5 Standard ratings . 7
9 6 Marking . 7
10 7 General notes on tests . 8
11 8 Dimensions and construction . 14
12 9 Electrical requirements . 15
13 10 Standard sheets . 27
14 Annex A (informative) Guidance on ratings to be specified by the manufacturer or to be agreed
15 upon with the testing house . 30
16 Bibliography . 31
18 Figure 1 – Standard test board for fuse-links with wire terminations . 10
19 Figure 2 – Test board for surface mount fuse-links . 12
20 Figure 3 – Test fuse base . 13
21 Figure 4 – Test circuits for breaking capacity tests . 17
23 Table 1 – Power factor and time constant . 18
24 Table 2 – Testing schedule for individual ampere ratings for a.c. or d.c. breaking capacity fuse-
25 links 22
26 Table 3 – Testing schedule for individual ampere ratings for a.c. and d.c. breaking capacity
27 fuse-links . 23
28 Table 4 – Testing schedule for maximum ampere rating of a homogeneous series (a.c. or d.c.
29 breaking capacity fuse-links) . 24
30 Table 5 – Testing schedule for maximum ampere rating of a homogeneous series (a.c. and d.c.
31 breaking capacity fuse-links) . 25
32 Table 6 – Testing schedule for minimum ampere rating of a homogeneous series . 26
33 Table 7 – Testing schedule for all intermediate ampere ratings of a homogeneous series . 26
34 Table A.1 – Guidance on ratings to be specified by the manufacturer or to be agreed upon with
35 the testing house . 30
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38 INTERNATIONAL ELECTROTECHNICAL COMMISSION
39 ____________
41 MINIATURE FUSES –
43 Part 9: Miniature fuse-links for special applications with partial-range breaking
44 capacity
46 FOREWORD
47 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national
48 electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all
49 questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities,
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52 National Committee interested in the subject dealt with may participate in this preparatory work. International,
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54 collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined
55 by agreement between the two organizations.
56 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus
57 of opinion on the relevant subjects since each technical committee has representation from all interested IEC National
58 Committees.
59 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in
60 that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC
61 cannot be held responsible for the way in which they are used or for any misinterpretation by any end user.
62 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to
63 the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and
64 the corresponding national or regional publication shall be clearly indicated in the latter.
65 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment
66 services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by
67 independent certification bodies.
68 6) All users should ensure that they have the latest edition of this publication.
69 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of
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72 use of, or reliance upon, this IEC Publication or any other IEC Publications.
73 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable
74 for the correct application of this publication.
75 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights.
76 IEC shall not be held responsible for identifying any or all such patent rights.
IEC CDV 60127-9: 2024 © IEC 2024 -4-
79 INTRODUCTION
80 According to the wish expressed by the users of miniature fuses, all standards, recommendations and
81 other documents relating to miniature fuses should have the same publication number in order to
82 facilitate reference to fuses in other specifications, for example, equipment specifications.
83 Furthermore, a single publication number and subdivision into parts would facilitate the establishment
84 of new standards, because clauses containing general requirements need not be repeated.
85 The IEC 60127 series, under the general heading Miniature fuses, is thus subdivided as follows:
86 IEC 60127-1, Miniature fuses – Part 1: Definitions for miniature fuses and general requirements for
87 miniature fuse-links
88 IEC 60127-2, Miniature fuses – Part 2: Cartridge fuse-links
89 IEC 60127-3, Miniature fuses – Part 3: Sub-miniature fuse-links
90 IEC 60127-4, Miniature fuses – Part 4: Universal modular fuse-links (UMF) – Through-hole and surface
91 mount types
92 IEC 60127-5, Miniature fuses – Part 5: Guidelines for quality assessment of miniature fuse-links
93 IEC 60127-6, Miniature fuses – Part 6: Fuse-holders for miniature fuse-links
94 IEC 60127-7, Miniature fuses – Part 7: Miniature fuse-links for special applications
95 IEC 60127-8, Miniature fuses – Part 8: Fuse resistors with particular overcurrent protection
96 IEC 60127-9, Miniature fuses – Part 9: Miniature fuse-links for special applications with partial-range
97 breaking capacity
98 IEC 60127-10, Miniature fuses – Part 10: User guide for miniature fuses
-5- IEC CDV 60127-9: 2024 © IEC 2024
101 MINIATURE FUSES –
103 Part 9: Miniature fuse-links for special applications with partial-range breaking
104 capacity
108 1 Scope
109 This part of IEC 60127 covers requirements for miniature fuse-links for special applications with partial-
110 range breaking capacity.
111 This part of IEC 60127 is applicable to fuse-links with a rated voltage not exceeding 1 000 V, a rated
112 current not exceeding 150 A and a rated breaking capacity not exceeding 50 kA.
113 Miniature fuse-links with partial-range breaking capacity are used only to operate under short circuit
114 conditions. They cannot be applied under overload conditions.
115 The design engineer needs to ensure no overload conditions can be seen by the fuse approved under
116 IEC 60127-9.
117 This part of IEC 60127 does not apply to fuses completely covered by IEC 60127-7 as well as the
118 subsequent parts of IEC 60269-1.
119 It does not apply to miniature fuse-links for appliances intended to be used under special conditions,
120 such as in corrosive or explosive atmospheres.
121 This part of IEC 60127 applies in addition to the requirements of IEC 60127-1.
122 Miniature fuse-links for special applications with partial-range breaking capacity are not intended to be
123 replaced by the end-user of an electrical / electronic appliance.
124 The object of this part of IEC 60127 is to establish uniform test methods for miniature fuse-links for
125 special applications with partial-range breaking capacity, so as to allow verification of the values (for
126 example melting time and breaking capacity values) specified by the manufacturer.
127 2 Normative references
128 The following documents, in whole or in part, are normatively referenced in this document and are
129 indispensable for its application. For dated references, only the edition cited applies. For undated
130 references, the latest edition of the referenced document (including any amendments) applies.
131 IEC 60068-2-21:2006, Environmental testing – Part 2-21: Tests – Test U: Robustness of terminations
132 and integral mounting devices
133 IEC 60127-1:2023, Miniature fuses – Part 1: Definitions for miniature fuses and general requirements
134 for miniature fuse-links
135 IEC 60127-4:2005, Miniature fuses – Part 4: Universal modular fuse-links (UMF) – Through-hole and
136 surface mount types
137 IEC 60127-4:2005/AMD1:2008
138 IEC 60127-4:2005/AMD2:2012
139 IEC 60127-6:2023, Miniature fuses – Part 6: Fuse-holders for miniature fuse-links
140 IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems – Part 1:
141 Principles, requirements and test
...
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