prEN IEC 60127-4:2024
(Main)Miniature fuses - Part 4: Universal modular fuse-links (UMF) - Through-hole and surface mount types
Miniature fuses - Part 4: Universal modular fuse-links (UMF) - Through-hole and surface mount types
Geräteschutzsicherungen - Teil 4: Welteinheitliche modulare Sicherungseinsätze (UMF) - Bauarten für Steck- und Oberflächenmontage
Coupe-circuit miniatures - Partie 4: Eléments de remplacement modulaires universels (UMF) - Types de montage en surface et montage par trous
Miniaturne varovalke – 4. del: Univerzalni modularni taljivi vložki – Skoznji vložki in vložki za površinsko montažo
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Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2024
Miniaturne varovalke – 4. del: Univerzalni modularni taljivi vložki – Skoznji vložki in
vložki za površinsko montažo
Miniature fuses - Part 4: Universal modular fuse-links (UMF) - Through-hole and surface
mount types
Geräteschutzsicherungen - Teil 4: Welteinheitliche modulare Sicherungseinsätze (UMF)
- Bauarten für Steck- und Oberflächenmontage
Coupe-circuit miniatures - Partie 4: Eléments de remplacement modulaires universels
(UMF) - Types de montage en surface et montage par trous
Ta slovenski standard je istoveten z: prEN IEC 60127-4:2024
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/646/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60127-4 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-10-18 2025-01-10
SUPERSEDES DOCUMENTS:
32C/629/CD, 32C/640A/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
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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:
Miniature fuses - Part 4: Universal modular fuse-links (UMF) - Through-hole and surface mount
types
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
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IEC CDV 60127-4/Ed4 © IEC 2024 – 2 – 32C/646/CDV
1 CONTENTS
2 FOREWORD . 4
3 1 Scope and object . 2
4 2 Normative references . 2
5 3 Terms and definitions . 3
6 4 General requirements . 3
7 5 Standard ratings . 3
8 5.1 Rated voltage . 3
9 5.2 Rated current . 3
10 5.3 Rated breaking capacity. 3
11 6 Marking . 3
12 7 General notes on tests . 4
13 8 Dimensions and construction . 5
14 8.1 Dimensions . 5
15 8.2 Construction . 5
16 8.3 Terminations . 6
17 8.3.1 Through-hole fuse-links . 6
18 8.3.2 Surface mount fuse-links . 6
19 8.4 Alignment and configuration of terminations . 6
20 8.5 Soldered joints . 6
21 8.6 Solderability of terminations . 7
22 8.6.1 Through-hole fuse-links . 7
23 8.6.2 Surface mount fuse-links . 7
24 8.7 Resistance to soldering heat . 7
25 8.7.1 Through-hole fuse-links . 7
26 8.7.2 Surface mount fuse-links . 8
27 9 Electrical requirements . 8
28 9.1 Voltage drop . 8
29 9.2 Time/current characteristics . 8
30 9.2.1 Time/current characteristics at normal ambient temperature . 8
31 9.2.2 Test at elevated temperature . 8
32 9.2.3 Test procedure . 8
33 9.2.4 Presentation of results . 9
34 9.3 Breaking capacity . 9
35 9.4 Endurance tests . 9
36 9.5 Maximum sustained dissipation . 10
37 9.6 Pulse tests . 10
38 9.7 Fuse-link temperature . 10
39 9.8 Operating overvoltage . 10
40 10 Standard sheets . 23
41 10.1 Standard sheet 1 – Through-hole fuse-links . 23
42 10.2 Standard sheet 2 – Surface mount fuse-links . 25
43 Annex A (informative) Mounting for surface mount fuse-links . 27
44 Bibliography . 29
IEC CDV 60127-4/Ed4 © IEC 2024 – 3 – 32C/XXX/CDV
46 Figure 1 – Unique identifying symbol for UMFs . 15
47 Figure 2 – Test board for through-hole fuse-links . 16
48 Figure 3 – Test board for surface mount fuse-links . 18
49 Figure 4 – Test fuse base . 19
50 Figure 5 – Bending jig for surface mount fuse-links . 20
51 Figure 6 – Test circuits for breaking capacity tests . 21
52 Figure A.1 – Parameters for reflow temperature . 28
54 Table 17 – Cross-sections of conductors . 5
55 Table 1 – Maximum values of voltage drop and sustained dissipation . 11
56 Table 2 – Testing schedule for individual ampere ratings . 12
57 Table 3 – Testing schedule for maximum ampere rating of a homogeneous series . 13
58 Table 4 – Testing schedule for minimum ampere rating of a homogeneous series . 15
59 Table 5 – Copper track specifications for test board for surface mount fuse-links . 22
IEC CDV 60127-4/Ed4 © IEC 2024 – 4 – 32C/646/CDV
62 INTERNATIONAL ELECTROTECHNICAL COMMISSION
63 ____________
65 MINIATURE FUSES –
67 Part 4: Universal modular fuse-links (UMF) –
68 Through-hole and surface mount types
70 FOREWORD
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IEC CDV 60127-4/Ed4 © IEC 2024 – 5 – 32C/XXX/CDV
116 The text of this International Standard is based on the following d
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