IEC 61008-1:2010

Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules

IEC 61008-1:2010 applies to residual current operated circuit-breakers functionally independent of, or functionally dependent on, line voltage, for household and similar uses, not incorporating overcurrent protection (hereafter referred to as RCCBs), for rated voltages not exceeding 440 V a.c. with rated frequencies of 50 Hz, 60 Hz or 50/60 Hz and rated currents not exceeding 125 A, intended principally for protection against shock hazard. This third edition cancels and replaces the second edition published in 1996, amendment 1 (2002) and amendment 2 (2006). This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- complete revision of EMC sequences, including the new test T.2.6 already approved in IEC 61543;
- clarification of RCDs current/time characteristics reported in Tables 1 and 2;
- revision of test procedure for IΔn between 5 A and 200 A;
- testing procedure regarding the 6mA d.c. current superimposed to the fault current;
- improvement highlighting RCDs with multiple sensitivity;
- tests for the use of RCCBs in IT systems.

Interrupteurs automatiques à courant différentiel résiduel sans dispositif de protection contre les surintensités incorporé pour usages domestiques et analogues (ID) - Partie 1: Règles générales

La CEI 61008-1:2010 s'applique aux interrupteurs automatiques à courant différentiel résiduel fonctionnellement indépendants ou fonctionnellement dépendants de la tension d'alimentation, pour usages domestiques et analogues sans dispositif de protection contre les surintensités incorporé (en abrégé "ID" dans la suite du texte), de tension assignée ne dépassant pas 440 V alternatifs, avec des fréquences assignées de 50 Hz, 60 Hz ou 50/60 Hz et de courant assigné ne dépassant pas 125 A, principalement destinés à la protection contre les chocs électriques. Cette troisième édition annule et remplace la deuxième édition, publiée en 1996, ainsi que l'amendement 1 (2002) et l'amendement 2 (2006). Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- révision complète des séquences CEM, incluant le nouvel essai T.2.6, déjà approuvé dans la CEI 61543;
- clarification des caractéristiques courant/temps des DDR incluses dans les Tableaux 1 et 2;
- révision de la procédure d'essai pour IΔn entre 5 A et 200 A;
- procédure d'essai concernant le courant continu 6 mA superposé au courant de défaut;
- des améliorations mettant en relief les DDR avec sensibilité multiple;
- essais pour l'emploi des ID dans les systèmes IT.

General Information

• Status: Published
• Publication Date: 11-Sep-2013
• 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
• Drafting Committee: WG 2 - TC 23/SC 23E/WG 2
• Current Stage: PPUB - Publication issued
• Start Date: 31-Jan-2010
• Completion Date: 11-Feb-2010

Relations

• Amended By: IEC 61008-1:2010/AMD2:2013 - Amendment 2 - Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules
• Effective Date: 05-Sep-2023
• Amended By: IEC 61008-1:2010/AMD1:2012 - Amendment 1 - Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules
• Effective Date: 05-Sep-2023
• Revises: IEC 61008-1:1996/AMD1:2002 - Amendment 1 - Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules
• Effective Date: 05-Sep-2023
• Revises: IEC 61008-1:1996 - Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules
• Effective Date: 05-Sep-2023
• Revises: IEC 61008-1:1996/AMD2:2006 - Amendment 2 - Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61008-1 ®
Edition 3.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) –
Part 1: General rules
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de
protection contre les surintensités incorporé pour usages domestiques et
analogues (ID) –
Partie 1: Règles générales
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 la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: [e-mail]
Web: 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.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: [e-mail]
Tel.: [phone]
Fax: [phone]
A propos de la CEI
La Commission Electrotechnique Internationale (CEI) 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 CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
ƒ Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm
Le Catalogue en-ligne de la CEI vous permet d’effectuer des recherches en utilisant différents critères (numéro de référence,
texte, comité d’études,…). Il donne aussi des informations sur les projets et les publications retirées ou remplacées.
ƒ Just Published CEI: www.iec.ch/online_news/justpub
Restez informé sur les nouvelles publications de la CEI. Just Published détaille deux fois par mois les nouvelles
publications parues. Disponible en-ligne et aussi par email.
ƒ Electropedia: www.electropedia.org
Le premier dictionnaire en ligne au monde de termes électroniques et électriques. Il contient plus de 20 000 termes et
définitions en anglais et en français, ainsi que les termes équivalents dans les langues additionnelles. Egalement appelé
Vocabulaire Electrotechnique International en ligne.
ƒ Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm
Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du
Service clients ou contactez-nous:
Email: [e-mail]
Tél.: [phone]
Fax: [phone]
IEC 61008-1 ®
Edition 3.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) –
Part 1: General rules
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de
protection contre les surintensités incorporé pour usages domestiques et
analogues (ID) –
Partie 1: Règles générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XF
CODE PRIX
ICS 29.120.50 ISBN 978-2-88910-398-0
– 2 – 61008-1 © IEC:2010
CONTENTS
FOREWORD.8
INTRODUCTION.10
1 Scope.11
2 Normative references .12
3 Terms and definitions .13
3.1 Definitions relating to currents flowing from live parts to earth .13
3.2 Definitions relating to the energization of a residual current circuit-breaker .13
3.3 Definitions relating to the operation and functions of residual current circuit-
breakers.14
3.4 Definitions relating to values and ranges of energizing quantities .16
3.5 Definitions relating to values and ranges of influencing quantities .18
3.6 Definitions relating to terminals .19
3.7 Definitions relating to conditions of operation .20
3.8 Definitions relating to tests .21
3.9 Definitions relating to insulation coordination.21
4 Classification.23
4.1 According to the method of operation .23
4.1.1 RCCB functionally independent of line voltage (see 3.3.4).23
4.1.2 RCCB functionally dependent on line voltage (see 3.3.5).23
4.2 According to the type of installation.23
4.3 According to the number of poles and current paths .23
4.4 According to the possibility of adjusting the residual operating current .23
4.5 According to resistance to unwanted tripping due to voltage surges .23
4.6 According to behaviour in presence of d.c. components .23
4.7 According to time-delay (in presence of a residual current) .24
4.8 According to the protection against external influences .24
4.9 According to the method of mounting .24
4.10 According to the method of connection.24
5 Characteristics of RCCBs .24
5.1 Summary of characteristics .24
5.2 Rated quantities and other characteristics .25
5.2.1 Rated voltage (U ) .25
n
5.2.2 Rated current (I ) .25
n
5.2.3 Rated residual operating current (I ).25
Δn
5.2.4 Rated residual non-operating current (I ).25
Δno
5.2.5 Rated frequency .25
5.2.6 Rated making and breaking capacity (I ) .25
m
5.2.7 Rated residual making and breaking capacity (I ) .26
Δm
5.2.8 RCCB type S .26
5.2.9 Operating characteristics in case of residual currents with d.c.
components.
5.3 Standard and preferred values .26
5.3.1 Preferred values of rated voltage (U ) .26
n
5.3.2 Preferred values of rated current (I ).27
n
5.3.3 Standard values of rated residual operating current (I ).27
Δn
5.3.4 Standard value of residual non-operating current (I ).27
Δno
61008-1 © IEC:2010 – 3 –
5.3.5 Standard minimum value of non-operating overcurrent in case of a
multiphase balanced load through a multipole RCCB (see 3.4.2.1) .27
5.3.6 Standard minimum value of the non-operating overcurrent in case of
a single-phase load through a three-pole or four-pole RCCB (see
3.4.2.2).27
5.3.7 Preferred values of rated frequency.27
5.3.8 Minimum value of the rated making and breaking capacity (I ) .27
m
5.3.9 Minimum value of the rated residual making and breaking capacity
(I ).28
Δm
5.3.10 Standard and preferred values of the rated conditional short-circuit
current (I ).28
nc
5.3.11 Standard values of the rated conditional residual short-circuit current
(I ).28
Δc
5.3.12 Limit values of break time and non-actuating time for RCCB of type
AC and A.28
5.3.13 Standard value of rated impulse withstand voltage (U ).29
imp
5.4 Coordination with short-circuit protective devices (SCPDs).30
5.4.1 General .30
5.4.2 Rated conditional short-circuit current (I ) .30
nc
5.4.3 Rated conditional residual short-circuit current (I ) .30
Δc
6 Marking and other product information.30
7 Standard conditions for operation in service and for installation.32
7.1 Standard conditions.32
7.2 Conditions of installation .33
7.3 Pollution degree .33
8 Requirements for construction and operation.33
8.1 Mechanical design.33
8.1.1 General .33
8.1.2 Mechanism .33
8.1.3 Clearances and creepage distances (see Annex B) .35
8.1.4 Screws, current-carrying parts and connections.37
8.1.5 Terminals for external conductors.38
8.2 Protection against electric shock .40
8.3 Dielectric properties and isolating capability .40
8.4 Temperature-rise.41
8.4.1 Temperature-rise limits.41
8.4.2 Ambient air temperature .41
8.5 Operating characteristic .41
8.6 Mechanical and electrical endurance.
...

IEC 61008-1 ®
Edition 3.2 2013-09
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) –
Part 1: General rules
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de
protection contre les surintensités incorporé pour usages domestiques et
analogues (ID) –
Partie 1: Règles générales
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 [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
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 corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
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.

Recherche de publications IEC - IEC online collection - oc.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur adapté à vos besoins.
les projets et les publications remplacées ou retirées.

Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au
Restez informé sur les nouvelles publications IEC. Just
monde, avec plus de 22 000 articles terminologiques en
Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
16 langues additionnelles. Egalement appelé Vocabulaire

Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 61008-1 ®
Edition 3.2 2013-09
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Residual current operated circuit-breakers without integral overcurrent

protection for household and similar uses (RCCBs) –

Part 1: General rules
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de

protection contre les surintensités incorporé pour usages domestiques et

analogues (ID) –
Partie 1: Règles générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-1093-2

IEC 61008-1 ®
Edition 3.2 2013-09
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) –
Part 1: General rules
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de
protection contre les surintensités incorporé pour usages domestiques et
analogues (ID) –
Partie 1: Règles générales
– 2 – 61008-1  IEC:2010+A1:2012
+A2:2013
CONTENTS
FOREWORD. 10
INTRODUCTION . 12

1  Scope . 13
2  Normative references . 14
3  Terms and definitions . 15
3.1  Definitions relating to currents flowing from live parts to earth . 15
3.2  Definitions relating to the energization of a residual current circuit-breaker . 16
3.3  Definitions relating to the operation and functions of residual current circuit-
breakers . 16
3.4  Definitions relating to values and ranges of energizing quantities . 18
3.5  Definitions relating to values and ranges of influencing quantities . 20
3.6  Definitions relating to terminals . 21
3.7  Definitions relating to conditions of operation . 22
3.8  Definitions relating to tests . 23
3.9  Definitions relating to insulation coordination . 23
4  Class i f i c a t i on . 25
4.1  According to the method of operation . 25
4.1.1  RCCB functionally independent of line voltage (see 3.3.4) . 25
4.1.2  RCCB functionally dependent on line voltage (see 3.3.5) . 25
4.2  According to the type of installation . 25
4.3  According to the number of poles and current paths . 25
4.4  According to the possibility of adjusting the residual operating current . 25
4.5  According to resistance to unwanted tripping due to voltage surges . 25
4.6  According to behaviour in presence of d.c. components . 26
4.7  According to time-delay (in presence of a residual current) . 26
4.8  According to the protection against external influences . 26
4.9  According to the method of mounting . 26
4.10  According to the method of connection . 26
4.11 According to the type of terminals . 26
5  Characteristics of RCCBs . 27
5.1  Summary of characteristics . 27
5.2  Rated quantities and other characteristics . 27
5.2.1  Rated voltage (U ) . 27
n
5.2.2  Rated current (I ) . 28
n
5.2.3  Rated residual operating current (I ) . 28
n
5.2.4  Rated residual non-operating current (I ) . 28
no
5.2.5  Rated frequency . 28
5.2.6  Rated making and breaking capacity (I ) . 28
m
5.2.7  Rated residual making and breaking capacity (I ) . 28
m
5.2.8  RCCB type S . 28
5.2.9  Operating characteristics in case of residual currents with d.c.
components . 28
5.3  Standard and preferred values . 29
5.3.1  Preferred values of rated voltage (U ) . 29
n
5.3.2  Preferred values of rated current (I ) . 29
n
5.3.3  Standard values of rated residual operating current (I ) . 29
n
61008-1  IEC:2010+A1:2012 – 3 –
+A2:2013
5.3.4  Standard value of residual non-operating current (I ) . 29
no
5.3.5  Standard minimum value of non-operating overcurrent in case of a
multiphase balanced load through a multipole RCCB (see 3.4.2.1) . 30
5.3.6  Standard minimum value of the non-operating overcurrent in case of
a single-phase load through a three-pole or four-pole RCCB (see
3.4.2.2) . 30
5.3.7  Preferred values of rated frequency . 30
5.3.8  Minimum value of the rated making and breaking capacity (I ) . 30
m
5.3.9  Minimum value of the rated residual making and breaking capacity
(I ) . 30
m
5.3.10  Standard and preferred values of the rated conditional short-circuit
current (I ) . 30
nc
5.3.11  Standard values of the rated conditional residual short-circuit current
(I ) . 30
c
5.3.12  Limit values of break time and non-actuating time for RCCB of type
AC and A . 31
5.3.13  Standard value of rated impulse withstand voltage (U ) . 32
imp
5.4  Coordination with short-circuit protective devices (SCPDs) . 32
5.4.1  General . 32
5.4.2  Rated conditional short-circuit current (I ) . 33
nc
5.4.3  Rated conditional residual short-circuit current (I ) . 33
c
6  Marking and other product information . 33
7  Standard conditions for operation in service and for installation . 35
7.1  Standard conditions . 35
7.2  Conditions of installation . 35
7.3  Pollution degree . 36
8  Requirements for construction and operation .
...

IEC 61008-1 ®
Edition 3.1 2012-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) –
Part 1: General rules
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de
protection contre les surintensités incorporé pour usages domestiques et
analogues (ID) –
Partie 1: Règles générales
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 la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI 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.

Useful links:
IEC publications search - www.iec.ch/searchpub Electropedia - www.electropedia.org
The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and
by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.

IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc
Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication
details all new publications released. Available on-line and or need further assistance, please contact the
also once a month by email. Customer Service Centre: [e-mail].

A propos de la CEI
La Commission Electrotechnique Internationale (CEI) 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 CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.

Liens utiles:
Recherche de publications CEI - www.iec.ch/searchpub Electropedia - www.electropedia.org
La recherche avancée vous permet de trouver des Le premier dictionnaire en ligne au monde de termes
publications CEI en utilisant différents critères (numéro de électroniques et électriques. Il contient plus de 30 000
référence, texte, comité d’études,…). termes et définitions en anglais et en français, ainsi que
Elle donne aussi des informations sur les projets et les les termes équivalents dans les langues additionnelles.
publications remplacées ou retirées. Egalement appelé Vocabulaire Electrotechnique
International (VEI) en ligne.
Just Published CEI - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications de la CEI.
Just Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur
Disponible en ligne et aussi une fois par mois par email. cette publication ou si vous avez des questions
contactez-nous: [e-mail].
IEC 61008-1 ®
Edition 3.1 2012-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Residual current operated circuit-breakers without integral overcurrent

protection for household and similar uses (RCCBs) –

Part 1: General rules
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de

protection contre les surintensités incorporé pour usages domestiques et

analogues (ID) –
Partie 1: Règles générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX CV
ICS 29.120.50 ISBN 978-2-8322-0082-7

– 2 – 61008-1  IEC:2010+A1:2012
CONTENTS
FOREWORD . 10
INTRODUCTION . 12

1 Scope . 13
2 Normative references . 14
3 Terms and definitions . 15
3.1 Definitions relating to currents flowing from live parts to earth . 15
3.2 Definitions relating to the energization of a residual current circuit-breaker . 16
3.3 Definitions relating to the operation and functions of residual current circuit-
breakers . 16
3.4 Definitions relating to values and ranges of energizing quantities . 18
3.5 Definitions relating to values and ranges of influencing quantities . 20
3.6 Definitions relating to terminals . 21
3.7 Definitions relating to conditions of operation . 22
3.8 Definitions relating to tests . 23
3.9 Definitions relating to insulation coordination . 23
4 Classification . 25
4.1 According to the method of operation . 25
4.1.1 RCCB functionally independent of line voltage (see 3.3.4) . 25
4.1.2 RCCB functionally dependent on line voltage (see 3.3.5) . 25
4.2 According to the type of installation . 25
4.3 According to the number of poles and current paths . 25
4.4 According to the possibility of adjusting the residual operating current . 25
4.5 According to resistance to unwanted tripping due to voltage surges . 25
4.6 According to behaviour in presence of d.c. components . 26
4.7 According to time-delay (in presence of a residual current) . 26
4.8 According to the protection against external influences . 26
4.9 According to the method of mounting . 26
4.10 According to the method of connection . 26
4.11 According to the type of terminals . 26
5 Characteristics of RCCBs . 27
5.1 Summary of characteristics . 27
5.2 Rated quantities and other characteristics . 27
5.2.1 Rated voltage (U ) . 27
n
5.2.2 Rated current (I ) . 28
n
5.2.3 Rated residual operating current (I ) . 28
∆n
5.2.4 Rated residual non-operating current (I ) . 28
∆no
5.2.5 Rated frequency . 28
5.2.6 Rated making and breaking capacity (I ) . 28
m
5.2.7 Rated residual making and breaking capacity (I ) . 28
∆m
5.2.8 RCCB type S . 28
5.2.9 Operating characteristics in case of residual currents with d.c.
components . 28
5.3 Standard and preferred values . 29
5.3.1 Preferred values of rated voltage (U ) . 29
n
5.3.2 Preferred values of rated current (I ) . 29
n
61008-1  IEC:2010+A1:2012 – 3 –
5.3.3 Standard values of rated residual operating current (I ) . 29
∆n
5.3.4 Standard value of residual non-operating current (I ) . 29
∆no
5.3.5 Standard minimum value of non-operating overcurrent in case of a
multiphase balanced load through a multipole RCCB (see 3.4.2.1) . 30
5.3.6 Standard minimum value of the non-operating overcurrent in case of
a single-phase load through a three-pole or four-pole RCCB (see
3.4.2.2) . 30
5.3.7 Preferred values of rated frequency . 30
5.3.8 Minimum value of the rated making and breaking capacity (I ) . 30
m
5.3.9 Minimum value of the rated residual making and breaking capacity
(I ) . 30
∆m
5.3.10 Standard and preferred values of the rated conditional short-circuit
current (I ) . 30
nc
5.3.11 Standard values of the rated conditional residual short-circuit current
(I ) . 30
∆c
5.3.12 Limit values of break time and non-actuating time for RCCB of type
AC and A . 31
5.3.13 Standard value of rated impulse withstand voltage (U ) . 32
imp
5.4 Coordination with short-circuit protective devices (SCPDs) . 32
5.4.1 General . 32
5.4.2 Rated conditional short-circuit current (I ) . 33
nc
5.4.3 Rated conditional residual short-circuit current (I ) . 33
∆c
6 Marking and other product information. 33
7 Standard conditions for operation in service and for installation . 35
7.1 Standard conditions . 35
7.2 Conditions of installation . 35
7.3 Pollution degree . 36
8 Requirements for construction and operation . 36
8.1 Mechanical design . 36
8.1.1 General . 36
8.1.2 Mechanism . 36
8.1.3 Clearances and creepage distances (see Annex B) . 38
8.1.4 Screws, current-carrying parts and connections . 40
8.1.5 Terminals for external conductors . 41
8.2 Protection against electric shock . 44
8.3 Dielectric properties and isolating capability . 44
8.4 Temperature-rise .
...