IEC 62640:2011

Residual current devices with or without overcurrent protection for socket-outlets for household and similar uses

IEC 62640:2011 applies to residual current-operated devices (RCD) incorporated in, or specifically intended for use with two pole socket-outlets, with or without earthing contact for household and similar uses (SRCD: socket-outlet residual current devices). SRCDs, according to this standard, are intended to be used in single phase systems such as phase to neutral or phase to phase or phase to earthed middle conductor. SRCDs are only intended to provide additional protection downstream of the SRCD. SRCDs are intended for use in circuits where the fault protection (indirect contact protection) is already assured upstream of the SRCD.

Dispositifs à courant différentiel résiduel avec ou sans protection contre les surintensités pour les socles des prises des courant destinés à des installations domestiques et analogues

La CEI 62640:2011 s'applique aux dispositifs à courant différentiel résiduel (DDR) incorporés, ou destinés tout particulièrement à une utilisation avec des socles de prises de courant bipolaires avec ou sans contact à la terre pour des installations domestiques et analogues (DDRPC: dispositif à courant différentiel résiduel pour les socles de prises de courant). Les DDRPC, conformes à la présente norme, sont destinés à être utilisés dans les systèmes monophasés tels que phase et neutre ou phase-phase ou entre phase et conducteur milieu mis à la terre. Les DDRPC sont destinés uniquement à assurer une protection supplémentaire en aval du DDRPC. Les DDRPC sont destinés à être utilisés dans les circuits où la protection en cas de défaut (protection contre le contact indirect) est déjà assurée en amont du DDRPC.

General Information

• Status: Published
• Publication Date: 30-Jan-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 11.040.60 - Therapy equipment
• 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-2011
• Completion Date: 31-Jan-2011

Relations

• Amended By: IEC 62640:2011/AMD1:2015 - Amendment 1 - Residual current devices with or without overcurrent protection for socket-outlets for household and similar uses
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62640 ®
Edition 1.0 2011-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Residual current devices with or without overcurrent protection for
socket-outlets for household and similar uses

Dispositifs à courant différentiel résiduel avec ou sans protection contre les
surintensités pour les socles de prises de courant destinés à des installations
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
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IEC 62640 ®
Edition 1.0 2011-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Residual current devices with or without overcurrent protection for
socket-outlets for household and similar uses

Dispositifs à courant différentiel résiduel avec ou sans protection contre les
surintensités pour les socles de prises de courant destinés à des installations
domestiques et analogues
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XF
ICS 29.120.50 ISBN 978-2-88912-325-4

– 2 – 62640  IEC:2011
CONTENTS
FOREWORD . 9
INTRODUCTION . 11
1 Scope . 12
2 Normative references . 13
3 Terms and definitions . 14
3.1 Definitions relating to currents flowing from live parts to earth . 14
3.2 Definitions relating to the energization of a residual current device . 15
3.3 Definitions relating to the operation and functions of the residual current
device . 15
3.4 Definitions relating to values and ranges of energizing quantities . 17
3.5 Definitions relating to values and ranges of influencing quantities . 19
3.6 Definitions relating to conditions of operation . 20
3.7 Definitions relating to tests . 21
3.8 Definitions relating to residual current devices in general . 21
4 Classification . 21
4.1 Classification according to behaviour resulting from failure of the line voltage . 22
4.1.1 SRCD not opening automatically in case of failure of the line voltage . 22
4.1.2 SRCD opening automatically in case of failure of the line voltage . 22
4.2 Classification according to the design . 22
4.2.1 SRCD consisting of an RCD incorporated in (a) fixed socket-outlet(s) . 22
4.2.2 SRCD consisting of an RCD intended to be associated with fixed
socket-outlets within the same mounting box or within two adjacent
compatible boxes. 22
4.2.3 SRCD consisting of an RCD incorporated in a connection unit
intended to protect only one piece of fixed electrical equipment (e.g.
hand dryer, water cooler, etc.) immediately adjacent to the SRCD . 22
4.3 Classification according to behaviour in presence of d.c. components . 22
4.4 Classification according to the provision for earthing . 22
4.5 Classification according to the design of the cover plate . 22
4.6 Classification according to the method of mounting . 22
4.7 Classification according to the environmental conditions . 23
4.7.1 Classification according to the degree of protection against ingress of
solid foreign objects . 23
4.7.2 Classification according to the degree of protection against harmful
ingress of water . 23
4.7.3 Classification according to the range of ambient air temperature . 23
4.8 Classification according to the type of terminals . 23
4.9 Classification according to overcurrent protection . 23
5 Characteristics of SRCDs . 23
5.1 Summary of characteristics . 23
5.2 Characteristics common to all socket-outlet residual current devices . 24
5.2.1 Rated current (I ) . 24
n
5.2.2 Rated residual operating current (I ) . 24
∆n
5.2.3 Rated residual non-operating current (I ) . 24
∆no
5.2.4 Rated voltage (U ) . 24
n
5.2.5 Rated frequency . 24
5.2.6 Rated residual making and breaking capacity (I ) . 24
∆m
62640  IEC:2011 – 3 –
5.2.7 Operating characteristics in case of residual current . 24
5.3 Characteristics specific to SRCDs with overcurrent protection (see 4.9) . 25
5.3.1 SRCDs classified according to 4.9 a), 4.9 b) and 4.9 c) 1) . 25
5.3.2 Rated short-circuit capacity (I ) for SRCD classified according to 4.9
cn
c) 2) . 26
5.4 Preferred or standard values . 26
5.4.1 Preferred values of rated voltage (U ) . 26
n
5.4.2 Standard values of rated current (I ) . 26
n
5.4.3 Standard values of rated residual operating current (I ) . 26
∆n
5.4.4 Standard value of rated residual non-operating current (I ) . 26
∆no
5.4.5 Standard values of rated frequency . 26
5.4.6 Standard values of the rated making and breaking capacity (I ) . 26
m
5.4.7 Standard values of the rated residual making and breaking capacity
(I ) . 27
∆m
5.4.8 Standard values of the rated conditional short-circuit current (I ) . 27
nc
5.4.9 Standard values of the rated conditional residual short-circuit current
(I ) . 27
∆c
5.4.10 Standard values of the rated short-circuit capacity (I ) . 27
cn
5.4.11 Standard values of break time . 27
5.5 Standard ranges of overcurrent instantaneous tripping for SRCDs to 4.9 c) 2). 28
6 Marking and other product information. 28
6.1 General . 28
6.2 Additional marking for screwless terminals . 30
6.3 Additional marking for SRCDs with an FE connection . 30
7 Standard conditions for operation in service and for installation . 30
8 Requirements for construction and operation . 31
8.1 General . 31
8.2 Information and marking . 31
8.3 Mechanical and electrical design . 31
8.3.1 Mechanism . 31
8.3.2 Clearance and creepage distances . 32
8.3.3 Standing current in the FE . 34
8.3.4 Screws, current-carrying parts and connections . 34
8.3.5 Terminals . 35
8.4 Operating characteristics . 35
8.4.1 Operation in response to the type of residual current . 35
8.4.2 Operation in response to the presence of a residual current equal to
or greater than I . 36
∆n
8.5 Behaviour of SRCDs with feed through terminals in case of miswiring . 36
8.6 Test device.
...

IEC 62640 ®
Edition 1.1 2015-05
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Residual current devices with or without overcurrent protection for
socket-outlets for household and similar uses

Dispositifs à courant différentiel résiduel avec ou sans protection contre les
surintensités pour les socles de prises de courant destinés à des installations
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.

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Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

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IEC 62640 ®
Edition 1.1 2015-05
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Residual current devices with or without overcurrent protection for

socket-outlets for household and similar uses

Dispositifs à courant différentiel résiduel avec ou sans protection contre les

surintensités pour les socles de prises de courant destinés à des installations

domestiques et analogues
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-2672-8

IEC 62640 ®
Edition 1.1 2015-05
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Residual current devices with or without overcurrent protection for
socket-outlets for household and similar uses

Dispositifs à courant différentiel résiduel avec ou sans protection contre les
surintensités pour les socles de prises de courant destinés à des installations
domestiques et analogues
– 2 – IEC 62640:2011
+AMD1:2015 CSV  IEC 2015
CONTENTS
FOREWORD . 9
INTRODUCTION . 11
1 Scope . 12
2 Normative references . 13
3 Terms and definitions . 14
3.1 Definitions relating to currents flowing from live parts to earth . 14
3.2 Definitions relating to the energization of a residual current device . 15
3.3 Definitions relating to the operation and functions of the residual current
device . 15
3.4 Definitions relating to values and ranges of energizing quantities . 17
3.5 Definitions relating to values and ranges of influencing quantities . 19
3.6 Definitions relating to conditions of operation . 20
3.7 Definitions relating to tests . 21
3.8 Definitions relating to residual current devices in general . 21
4 Classification . 21
4.1 Classification according to behaviour resulting from failure of the line voltage . 22
4.1.1 SRCD not opening automatically in case of failure of the line voltage . 22
4.1.2 SRCD opening automatically in case of failure of the line voltage . 22
4.2 Classification according to the design . 22
4.2.1 SRCD consisting of an RCD incorporated in (a) fixed socket-outlet(s) . 22
4.2.2 SRCD consisting of an RCD intended to be associated with fixed
socket-outlets within the same mounting box or within two adjacent
compatible boxes. 22
4.2.3 SRCD consisting of an RCD incorporated in a connection unit
intended to protect only one piece of fixed electrical equipment (e.g.
hand dryer, water cooler, etc.) immediately adjacent to the SRCD . 22
4.3 Classification according to behaviour in presence of d.c. components . 22
4.4 Classification according to the provision for earthing . 22
4.5 Classification according to the design of the cover plate . 22
4.6 Classification according to the method of mounting . 22
4.7 Classification according to the environmental conditions . 23
4.7.1 Classification according to the degree of protection against ingress of
solid foreign objects . 23
4.7.2 Classification according to the degree of protection against harmful
ingress of water . 23
4.7.3 Classification according to the range of ambient air temperature . 23
4.8 Classification according to the type of terminals . 23
4.9 Classification according to overcurrent protection . 23
5 Characteristics of SRCDs . 23
5.1 Summary of characteristics . 23
5.2 Characteristics common to all socket-outlet residual current devices . 24
5.2.1 Rated current (I ) . 24
n
5.2.2 Rated residual operating current (I ) . 24
∆n
5.2.3 Rated residual non-operating current (I ) . 24
∆no
5.2.4 Rated voltage (U ) . 24
n
5.2.5 Rated frequency . 24
5.2.6 Rated residual making and breaking capacity (I ) . 24
∆m
+AMD1:2015 CSV  IEC 2015
5.2.7 Operating characteristics in case of residual current . 24
5.3 Characteristics specific to SRCDs with overcurrent protection (see 4.9) . 25
5.3.1 SRCDs classified according to 4.9 a), 4.9 b) and 4.9 c) 1) . 25
5.3.2 Rated short-circuit capacity (I ) for SRCD classified according to 4.9
cn
c) 2) . 26
5.4 Preferred or standard values . 26
5.4.1 Preferred values of rated voltage (U ) . 26
n
5.4.2 Standard values of rated current (I ) . 26
n
5.4.3 Standard values of rated residual operating current (I ) . 26
∆n
5.4.4 Standard value of rated residual non-operating current (I ) . 26
∆no
5.4.5 Standard values of rated frequency . 26
5.4.6 Standard values of the rated making and breaking capacity (I ) . 26
m
5.4.7 Standard values of the rated residual making and breaking capacity
(I ) . 27
∆m
5.4.8 Standard values of the rated conditional short-circuit current (I ) . 27
nc
5.4.9 Standard values of the rated conditional residual short-circuit current
(I ) . 27
∆c
5.4.10 Standard values of the rated short-circuit capacity (I ) . 27
cn
5.4.11 Standard values of break time . 27
5.5 Standard ranges of overcurrent instantaneous tripping for SRCDs to 4.9 c) 2). 28
6 Marking and other product information. 28
6.1 General . 28
6.2 Additional marking for screwless terminals .
...