ISO 8820-9:2014

INTERNATIONAL ISO
STANDARD 8820-9
First edition
2014-05-01
Road vehicles — Fuse-links —
Part 9:
Fuse-links with shortened tabs (Type
K)
Véhicules routiers — Liaisons fusibles —
Partie 9: Liaisons fusibles à languettes raccourcies (Type K)
Reference number
©
ISO 2014
© ISO 2014
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ii © ISO 2014 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Marking, labelling and colour coding . 1
5 Tests and requirements . 2
5.1 General . 2
5.2 Voltage drop and connection resistance . 4
5.3 Transient current cycling . 6
5.4 Environmental conditions . 7
5.5 Operating time-rating . 7
5.6 Current steps . 7
5.7 Breaking capacity . 7
5.8 Strength of terminals . 9
6 Dimensions .10
6.1 Basic dimensions of fuse-link .10
6.2 Designation example .11
7 Test fixture .11
Bibliography .13
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
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to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical
and electronic equipment.
ISO 8820 consists of the following parts, under the general title Road vehicles — Fuse-links:
— Part 1: Definitions and general test requirements
— Part 2: User’s guide
— Part 3: Fuse-link’s with tabs (blade type) Type C (medium), Type E (high current) and Type F (miniature)
— Part 4: Fuse-links with female contacts (Type A) and bolt-in contacts (Type B) and their test fixtures
— Part 5: Fuse links with axial terminals (Strip fuse-links) Type SF 30 and SF 51 and test fixture
— Part 6 Single-bolt fuse-links
— Part 7: Fuse-links with tabs (Type G) with rated voltage of 450 V
— Part 8: Fuse-links with bolt-in contacts (Type H and J) with rated voltage of 450 V
— Part 9: Fuse-links with shortened tabs (Type K)
iv © ISO 2014 – All rights reserved

INTERNATIONAL STANDARD ISO 8820-9:2014(E)
Road vehicles — Fuse-links —
Part 9:
Fuse-links with shortened tabs (Type K)
1 Scope
This part of ISO 8820 specifies fuse-links with shortened tabs (Type K) for use in road vehicles. It
establishes, for these fuse-link types, the rated current, test procedures, performance requirements,
and dimensions.
This part of ISO 8820 is applicable to fuse-links with a rated voltage of 58 V, a current rating of ≤ 30 A,
and a breaking capacity of 1 000 A intended for use in road vehicles.
This part of ISO 8820 is intended to be used in conjunction with ISO 8820-1 and ISO 8820-2. The
numbering of clauses in this part of ISO 8820 corresponds to that of ISO 8820-1.This part of ISO 8820
includes additional or modified requirements that are intended to be applied in addition to those given
in ISO 8820-1.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendment
...