ISO 20934:2019

Road vehicles — Fuse-links with axial terminals for use in 48V networks — Types SF36-70V, SF51-70V and SF56-70V

This document specifies fuse-links with axial terminals (Strip fuse-links) Types SF36‑70V, SF51‑70V and SF56‑70V used in road vehicles. It establishes, for these fuse-link types, the rated current, test procedures, performance requirements, and dimensions. This document is applicable to fuse-links with a rated voltage of 70 V DC, a rated current of 30 A to 500 A, and a breaking capacity of 2 500 A intended for use in the electrical system of road vehicles with a nominal voltage of 48 V DC. 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 avec languettes axiales pour réseaux 48V — Types SF36-70V, SF51-70V et SF56-70V

General Information

• Status: Published
• Publication Date: 31-Mar-2019
• ICS: 43.040.10 - Electrical and electronic equipment
• Technical Committee: ISO/TC 22/SC 32 - Electrical and electronic components and general system aspects
• Drafting Committee: ISO/TC 22/SC 32/WG 5 - Fuses and circuit breakers
• Current Stage: 9020 - International Standard under periodical review
• Start Date: 15-Apr-2024
• Completion Date: 15-Apr-2024

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 20934
First edition
2019-04
Road vehicles — Fuse-links with
axial terminals for use in 48V
networks — Types SF36-70V, SF51-
70V and SF56-70V
Véhicules routiers — Liaisons fusibles avec languettes axiales pour
réseaux 48V — Types SF36-70V, SF51-70V et SF56-70V
Reference number
ISO 20934:2019(E)
©
ISO 2019

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ISO 20934:2019(E)

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Published in Switzerland
ii © ISO 2019 – All rights reserved

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ISO 20934:2019(E)

Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Marking, labelling and colour coding . 1
5 Design and test requirements . 2
5.1 General . 2
5.1.1 General test conditions . 2
5.1.2 General performance requirements . 2
5.1.3 General fuse-link requirements . 3
5.1.4 Test sequence . . . 3
5.1.5 Test cable size . 4
5.2 Voltage drop . 4
5.2.1 Purpose . 4
5.2.2 Test . 4
5.2.3 Requirement . 4
5.3 Current cycling . 5
5.3.1 Purpose . 5
5.3.2 Test . 5
5.
...