IEC 63024:2017

Requirements for automatic reclosing devices (ARDs) for circuit breakers, RCBOs-RCCBs for household and similar uses

IEC 63024:2017 applies to automatic reclosing devices (ARDs) for household and similar uses, for rated voltage not exceeding 440 V AC, and which are intended to be used in combination with circuit-breakers, RCCBs and RCBOs, and designed either for factory assembly or for assembly on site.
These devices are intended to reclose main protective devices (MPDs) such as circuit-breakers complying with IEC 60898-1 and/or IEC 60898-2, RCCBs complying with IEC 61008-1 and/or IEC 62423, and RCBOs complying with IEC 61009-1 and/or IEC 62423 after tripping of those devices in order to re-establish continuity of service.

Exigences pour les dispositifs à refermeture automatique (DRA) pour disjoncteurs, ID et DD, pour usages domestiques et analogues

L'IEC 63024:2017 s’applique aux dispositifs de refermeture automatique (DRA) pour usages domestiques et analogues, à des tensions assignées de 440 V c.a au maximum, et qui sont destinés à être utilisés conjointement avec des disjoncteurs, des ID et des DD. Ces dispositifs sont conçus pour un montage en usine ou sur site.
Ces dispositifs sont destinés à refermer des dispositifs de protection principaux (DPP) tels que les disjoncteurs conformes à l’IEC 60898-1 et/ou à l’IEC 60898-2, les ID conformes à l’IEC 61008-1 et/ou à l’IEC 62423, ainsi que les DD conformes à l’IEC 61009-1 et/ou à l’IEC 62423 après un déclenchement de ces dispositifs, afin de rétablir la continuité du service.

General Information

• Status: Published
• Publication Date: 12-Dec-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• Technical Committee: SC 23E - Circuit-breakers and similar equipment for household use
• Current Stage: PPUB - Publication issued
• Start Date: 05-Jan-2018
• Completion Date: 13-Dec-2017

Standards Content (Sample)

IEC 63024 ®
Edition 1.0 2017-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Requirements for automatic reclosing devices (ARDs) for circuit-breakers,
RCBOs and RCCBs for household and similar uses

Exigences pour les dispositifs à refermeture automatique (DRA) pour
disjoncteurs, ID et DD, pour usages domestiques et analogues
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 16
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
65 000 entrées terminologiques électrotechniques, en anglais
La recherche avancée permet de trouver des publications IEC
en utilisant différents critères (numéro de référence, texte, et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées. antérieures extraites des publications des CE 37, 77, 86 et

CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 63024 ®
Edition 1.0 2017-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Requirements for automatic reclosing devices (ARDs) for circuit-breakers,

RCBOs and RCCBs for household and similar uses

Exigences pour les dispositifs à refermeture automatique (DRA) pour

disjoncteurs, ID et DD, pour usages domestiques et analogues

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-5132-4

– 2 – IEC 63024:2017 © IEC 2017
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 11
4 Classification . 13
4.1 According to the method of construction . 13
4.2 According to the associated MPD . 13
4.3 According to the type of assessment means . 13
4.4 According to the safety means during the assessment . 14
4.5 According to the connection to FE . 14
4.6 According to maximum number of reclosing operations . 14
4.7 According to mechanical interlock between MPD operating means and ARD
enabling/disabling system . 14
5 Characteristics . 14
5.1 Summary of characteristics . 14
5.2 Rated quantities . 14
5.2.1 Rated voltage . 14
5.2.2 Rated operational voltage (U ) . 15
e
5.2.3 Rated frequency . 15
5.2.4 Rated non-operating resistance to earth (R ) . 15
d0
5.2.5 Rated operating resistance to earth (R ) . 15
d
5.2.6 Rated non-operating resistance between live parts (R ) . 15
cc0
5.2.7 Rated operating resistance between live parts (R ) . 16
cc
6 Marking and other product information . 16
6.1 Standard marking . 16
6.2 Instructions for assembly and operation . 17
7 Standard conditions for operation in service . 18
7.1 General . 18
7.2 Conditions of installation . 18
7.3 Pollution degree . 18
8 Requirements for construction and operation . 18
8.1 Mechanical design . 18
8.1.1 General . 18
8.1.2 Mechanism . 19
8.1.3 Clearances and creepage distances . 20
8.1.4 Clearances and creepage distances for electronic circuits connected
between live parts or between live parts and the earth . 20
8.1.5 Screws, current-carrying parts and connections . 22
8.1.6 Terminals for external conductors . 22
8.2 Protection against electric shock. 22
8.3 Dielectric properties and isolating capability . 23
8.4 Temperature rise . 23
8.5 Mechanical and electrical endurance . 23
8.6 Performance at short-circuit currents . 23
8.7 Resistance to mechanical shock and impact. 23

8.8 Resistance to heat. 23
8.9 Resistance to abnormal heat and to fire . 24
8.10 Operating characteristics . 24
8.11 Assessment means for ARD according to 4.3.2 . 25
8.11.1 General . 25
8.11.2 Assessment means operating by limitation of the test voltage . 25
8.11.3 Assessment means operating by limitation of the test current . 25
8.12 Safety in blocked condition . 26
8.13 Test device . 26
8.14 Ageing . 26
8.15 Electromagnetic compatibility (EMC). 26
9 Tests . 26
9.1 General . 26
9.2 Test condition . 26
9.3 Measurement of the reclosing time after the tripping of the MPD . 27
9.4 Test of indelibility of marking . 27
9.5 Verification of the non-influence of the ARD on the correct operation of the
MPD . 27
9.5.1 Verification of the operating characteristics of the MPD . 27
9.5.2 Verification of the impossibility of the activation of the ARD when the
MPD has been manually opened . 28
9.5.3 Verification of the enabling/disabling system of the ARD. 28
9.5.4 Verification of the maximum number of consecutive reclosings . 28
9.6 Tests of creepage distances and clearances for electronic circuits (abnormal
condi
...