Road vehicles — Fuse-links — Part 12: Fuse-links with tabs (blade type) Type N (sub miniature)

This document specifies fuse-links with tabs (blade-type) Type N (sub miniature), for use in road vehicles. It establishes, for this fuse-link type, the rated current, test procedures, performance requirements and dimensions. This document is applicable for fuse-links with a rated voltage of 32 V a current rating of ≤30 A and a breaking capacity of 1 000 A intended for use in road vehicles. This document is intended to be used in conjunction with ISO 8820‑1 and with ISO 8820‑2. The numbering of its clauses corresponds to that of ISO 8820‑1 whose requirements are applicable, except where modified by requirements particular to this document.

Véhicules routiers — Liaisons fusibles — Partie 12: Liaisons fusibles à languette (type lame) Type N (micro)

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ISO 8820-12:2020 - Road vehicles -- Fuse-links
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Standards Content (Sample)

STANDARD 8820-12
First edition
Road vehicles — Fuse-links —
Part 12:
Fuse-links with tabs (blade type) Type
N (sub miniature)
Véhicules routiers — Liaisons fusibles —
Partie 12: Liaison fusible à languette (type lame) Type N (micro)
Reference number
ISO 8820-12:2020(E)
ISO 2020

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ISO 8820-12:2020(E)

© ISO 2020
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ii © ISO 2020 – All rights reserved

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ISO 8820-12:2020(E)

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
5.1.1 Test criteria . 2
5.1.2 Test sequence . . . 2
5.2 Voltage drop . 3
5.2.1 Tests . 3
5.2.2 Requirements . 4
5.3 Transient current cycling . 5
5.3.1 Test . 5
5.3.2 Requirements . 5
5.4 Environmental conditions . 6
5.5 Operating time-rating . 6
5.5.1 Test . 6
5.5.2 Requirement . 6
5.6 Current steps . 6
5.6.1 Test . 6
5.6.2 Requirement . 6
5.7 Breaking capacity . 6
5.7.1 Test . 6
5.7.2 Requirement . 6
5.8 Strength of terminals . 7
5.8.1 Test . 7
5.8.2 Requirements . 7
5.9 Test cable sizes . 7
5.10 Temperature rise . 8
6 Dimensions . 8
6.1 Fuse-links Type N . 8
6.2 Designation example .10
Annex A (informative) Temperature rise test .11
Bibliography .12
© ISO 2020 – All rights reserved iii

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ISO 8820-12:2020(E)

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This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 32,

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