IEC 60127-2:2014/AMD1:2020

Amendment 1 - Miniature fuses - Part 2: Cartridge fuse-links

IEC 60127-2:2014/AMD1:2020

Name:IEC 60127-2:2014/AMD1:2020   Standard name:Amendment 1 - Miniature fuses - Part 2: Cartridge fuse-links
Standard number:IEC 60127-2:2014/AMD1:2020   language:English and French language
Release Date:13-Sep-2020   technical committee:SC 32C - Miniature fuses
Drafting committee:MT 10 - TC 32/SC 32C/MT 10   ICS number:01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION

IEC 60127-2
Edition 3.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Miniature fuses –
Part 2: Cartridge fuse-links
Coupe-circuit miniatures –
Partie 2: Cartouches
IEC 60127-2:2014-09/AMD1:2020-09(en-fr)





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IEC 60127-2
Edition 3.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Miniature fuses –
Part 2: Cartridge fuse-links
Coupe-circuit miniatures –
Partie 2: Cartouches
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-8800-9

– 2 – IEC 60127-2:2014/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/587/FDIS 32C/591/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• withdrawn,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.
_____________
Figure 1 – Test fuse-base for 5 mm × 20 mm and 6,3 mm × 32 mm fuse-links –
Rated currents up to and including 6,3 A (see 7.3)
Replace the existing title of Figure 1 with the following new title:
Figure 1 – Test fuse-base for 5 mm × 20 mm and 6,3 mm × 32 mm fuse-links –
Rated currents up to and including 6,3 A

Figure 2 – Test fuse-base for 5 mm × 20 mm and 6,3 mm × 32 mm fuse-links –
Rated currents exceeding 6,3 A (see 7.3)
Replace the existing title of Figure 2 with the following new title:
Figure 2 – Test fuse-base for 5 mm × 20 mm and 6,3 mm × 32 mm fuse-links –
Rated currents exceeding 6,3 A

Figure 3 – Test fuse-base for breaking capacity tests (see 7.3)
Replace the existing title of Figure 3 with the following new title:
Figure 3 – Test fuse-base for breaking capacity tests

© IEC 2020
Figure 5 – Alignment gauge (see 8.4)
Replace the existing title of Figure 5 with the following new title:
Figure 5 – Alignment gauge
Replace the existing explanatory text below Figure 5 with the following new Note:
NOTE The dimensions of the gauge and the corresponding tolerances are specified in the Standard sheets.

Figure 6 – Typical test circuit for breaking-capacity tests for high-breaking capacity
fuse-links (see 9.3)
Replace the existing title of Figure 6 with the following new title:
Figure 6 – Typical test circuit for breaking-capacity tests
for high-breaking capacity fuse-links
Replace the existing content of L in the Key for Figure 6 with the following new content:
L Air-cored inductance: 0,30 mH ± 3 % for fuse-links with 250 V rated voltage
0,60 mH ± 3 % for fuse-links with 500 V rated voltage

Figure 7 – Typical test circuit for breaking-capacity tests for low- and enhanced-
breaking capacity fuse-links (see 9.3)
Replace the existing title of Figure 7 with the following new title:
Figure 7 – Typical test circuit for breaking-capacity tests
for low- and enhanced-breaking capacity fuse-links
Replace the existing content of L in the Key for Figure 7 with the following new content:
L Air-cored inductance: 0,30 mH ± 3 % for fuse-links with 250 V rated voltage
± 3 % for fuse-links with 500 V rated voltage
0,60 mH
10 Standard sheets
Standard sheet 1
Replace existing footnote a to the table on page 1 of Standard sheet 1 with the following new
footnote:
a
Intermediate values shall be chosen from the R 20 or R 40 series according to ISO 3.

– 4 – IEC 60127-2:2014/AMD1:2020
© IEC 2020
Standard sheet 2
Replace the existing table on page 1 of Standard sheet 2 with the following new table:
a
Rated voltage Maximum Maximum sustained
Rated current
voltage drop power dissipation
b
V mV
W
32 mA 10 000
40 mA 8 000
50 mA 7 000
63 mA 5 000
80 mA 4 000
100 mA 3 500
125 mA 2 000
160 mA 2 000
200 mA 1 700
250 mA 1 400
1,6
315 mA 1 300
400 mA 1 200
500 mA 1 000
630 mA 650
800 mA 240
1 A 200
1,25 A 200
1,6 A 190
2 A 170
2,5 A 170
3,15 A 150
4 A 130
2,5
5 A 130
6,3 A 130
8 A 130
10 A 130
a
Intermediate values shall be chosen from the R 20 or R 40 series according to ISO 3.
b
Measured after 1 h (for ratings above 6,3 A after 30 min) at 1,5 I .
N
Delete the existing second paragraph of Breaking capacity on page 2 of Standard sheet 2.

© IEC 2020
Standard sheet 3
Replace the existing table on page 1 of Standard sheet 3 with the following new table:
a
Rated voltage Maximum voltage Maximum
Rated current
drop sustained power
dissipation
b
V mV
W
32 mA 5 000
40 mA 4 000
50 mA 3 500
63 mA 3 000
80 mA 3 000
100 mA 2 500
125 mA 2 000
160 mA 1 900
200 mA 1 500
250 mA 1 300
315 mA 1 100
400 mA 1 000
1,6
500 mA 900
630 mA 300
800 mA 250
1 A 150
1,25 A 150
1,6 A 150
2 A 150
2,5 A 120
3,15 A 100
4 A 100
5 A 100
6,3 A 100
8 A 100
10 A 100
a
Intermediate values shall be chosen from the R 20 or R 40 series according to ISO 3.
b
Measured after 1 h (for ratings above 6,3 A after 30 min) at 1,5 I .
N
Delete the existing second paragraph of Breaking capacity on page 2 of Standard sheet 3.

– 6 – IEC 60127-2:2014/AMD1:2020
© IEC 2020
Standard sheet 4
Replace the existing table on page 1 of Standard sheet 4 with the following new table:
Rated current Rated voltage Maximum Maximum
voltage drop sustained power
dissipation
*
V mV W
50 mA 10 000
63 mA 8 000
80 mA 7 000
100 mA 6 000
125 mA 5 500
160 mA 5 000
200 mA 4 000
1,6
250 mA 3 500
315 mA 3 000
400 mA 2 500
500 mA 2 000
630 mA 1 800
800 mA 1 500
1 A 500
1,25 A 400
1,6 A 400
2,5
2 A 300
2,5 A 150 250
3,15 A 250
4 A 150 250
5 A 60 200
6,3 A 200
8 A 60 200
10 A 60 200
* Measured after 1 h at 1,15 I .
N
Standard sheet 5
Replace existing footnote a to the table on page 1 of Standard sheet 5 with the following new
footnote:
a
Intermediate values shall be chosen from the R 20 or R 40 series according to ISO 3.

Standard sheet 6
Replace existing footnote a to the table on page 1 of Standard sheet 6 with the following new
footnote:
a
Intermediate values shall be chosen from the R 20 or R 40 series according to ISO 3.

© IEC 2020
Annex A
A.3.3 Test bases for tests
Replace the existing second paragraph of A.3.3 with the following new paragraph:
The test board shall be made of epoxide woven glass fabric copper-clad laminated sheet as
defined in IEC 60249-2-7.
Add the following new Annex B:

– 8 – IEC 60127-2:2014/AMD1:2020
© IEC 2020
Annex B
(normative)
Cartridge fuse-links with DC ratings
B.1 General
This annex supplements the requirements of this document and is to be applied to already
tested and approved 5 mm × 20 mm or 6,3 mm × 32 mm fuse-links which are available without
or with wire terminations.
This annex relates to requirements applicable to cartridge fuse-links used for the protection of
electric appliances, electronic equipment and component parts thereof, normally intended to be
used indoors.
The object of this annex is to define additional test methods for cartridge fuse-links with optional
DC ratings.
B.2 General notes on tests
In addition to the requirements of Clause 7 of IEC 60127-1:2006, the following criteria shall be
observed.
B.2.1 Type tests
Replacement of 7.2.1:
15 additional samples chosen at random are required.
The schedule for testing cartridge fuse-links with DC ratings shall be according to Table B.1.
The requirements of 7.2.3 of IEC 60127-1:2006 are not applicable.
No failure is allowed in any of the additional tests specified in this annex.
Table B.1 – Testing schedule
Fuse-link number
Sub-
DC1 DC4 DC7 DC10 DC13
Description
clause
DC2 DC5 DC8 DC11 DC14
DC3 DC6 DC9 DC12 DC15
B.4.1 Rated breaking capacity X
B.4.1   5 times the rated current   5 I X
N
B.4.1  10 times the rated current   10 I  X
N
B.4.1  50 times the rated current   50 I  X
N
B.4.1 250 times the rated current  250 I   X
N
B.4.1 Insulation resistance X X X X X
NOTE Applicable only when the defined rated breaking capacity is not exceeded.

© IEC 2020
B.2.2 Test bases for tests
Cartridge fuse-links shall be tested in a test fuse-base as shown in Figure 3.
Cartridge fuse-links with wire terminations shall be tested in a test board as shown in
Figure A.1. The test board shall then be mounted on the test base of Figure A.2.
B.3 Marking
Clause 6 of IEC 60127-1:2006 applies except as follows.
6.3
Addition after first paragraph:
Furthermore the DC rated breaking capacity in amperes (A) or in kilo amperes (kA) as well as
the DC rated voltage (VDC) shall be m
...

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