IEC 61008-1:2024
(Main)Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules
Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules
IEC 61008-1:2024 gives general requirements and tests for residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (hereafter referred to as RCCBs), for rated operational voltages not exceeding 440 V AC, 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 fourth edition cancels and replaces the third edition published in 2010, Amendment 1:2012 and Amendment 2:2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) harmonization of all clauses between the IEC 61008, IEC 61009 and IEC 60755 series using blocks and modules approach;
b) harmonization of all tables and figures between the IEC 61008, IEC 61009 and IEC 60755 series;
c) terms and definitions are now referred to IEC 62873-2;
d) modification of 4.1 for classification according to supply conditions;
e) new subclauses 8.17 and 9.24 for requirements and tests for the resistance to temporary overvoltages (TOV);
f) improvement of 9.8 for test of dielectric properties;
g) tests for screwless, flat-quick terminals and aluminium conductors are now referred to the IEC 62873-3 series.
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de protection contre les surintensités incorporé pour usages domestiques et analogues (ID) - Partie 1: Règles générales
L'IEC 61008-1:2024 spécifie les exigences générales et les essais relatifs aux interrupteurs automatiques à courant différentiel résiduel sans dispositif de protection contre les surintensités incorporé pour usages domestiques et analogues (ci-après appelés ID), de tension d'emploi assignée inférieure ou égale à 440 V en courant alternatif avec une fréquence assignée de 50 Hz, 60 Hz ou 50/60 Hz et un courant assigné inférieur ou égal à 125 A, destinés principalement à la protection contre les chocs électriques.
Cette quatrième édition annule et remplace la troisième édition parue en 2010, l'Amendement 1:2012 et l'Amendement 2:2013. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) harmonisation de tous les articles entre les séries IEC 61008, IEC 61009 et IEC 60755 par une approche fondée sur les blocs et les modules;
b) harmonisation de tous les tableaux et figures entre les séries IEC 61008, IEC 61009 et IEC 60755;
c) les termes et définitions renvoient désormais à l'IEC 62873-2;
d) modification du 4.1 relatif à la classification selon les conditions d'alimentation;
e) de nouveaux paragraphes 8.17 et 9.24 ont été ajoutés pour les exigences et les essais de résistance aux surtensions temporaires (TOV);
f) amélioration du 9.8 relatif à l'essai des propriétés diélectriques;
g) les essais des bornes sans vis, des bornes plates à connexion rapide et des conducteurs en aluminium renvoient désormais à la série IEC 62873-3.
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IEC 61008-1 ®
Edition 4.0 2024-11
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
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IEC 61008-1 ®
Edition 4.0 2024-11
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
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8327-0007-5
– 2 – IEC 61008-1:2024 © IEC 2024
CONTENTS
FOREWORD . 9
INTRODUCTION . 11
1 Scope . 12
2 Normative references . 13
3 Terms and definitions . 14
4 Classification . 15
4.1 According to the supply conditions . 15
4.1.1 RCCB operating correctly on the occurrence of residual current . 15
4.1.2 RCCB with 2 or 4 current paths operating correctly on the occurrence of
residual current within the voltage range of 1,1 U and 85 V . 15
e
4.1.3 RCCB according to 4.1.2 fitted with a functional earth (FE) and able to
continue to provide protection when supplied from just one phase and
FE . 15
4.1.4 RCCB with 3 current paths operating correctly on the occurrence of
residual current within the voltage range of 1,1 U and 0,7 U . 15
e e
4.1.5 RCCB operating correctly on the occurrence of residual current within
the voltage range 1,1 U and U . 16
e x
4.1.6 RCCB according to 4.1.5, however reclosing automatically after
restoration of the supply voltage . 16
4.2 According to the possibility of adjusting the residual operating current . 16
4.2.1 RCCB with a single value of rated residual operating current . 16
4.2.2 RCCB with multiple settings of residual operating current by fixed steps . 16
4.3 According to their operation in response to the type of residual current . 16
4.3.1 RCCB of type AC . 16
4.3.2 RCCB of type A . 16
4.4 According to time-delay (in the presence of a residual current) . 16
4.4.1 RCCB without time-delay: type for general use . 16
4.4.2 RCCB with time-delay: type S for selectivity . 16
4.5 According to the protection against external influences . 16
4.5.1 Enclosed-type RCCB (not requiring an appropriate enclosure) . 16
4.5.2 Unenclosed-type RCCB (for use with an appropriate enclosure) . 16
4.6 According to the method of mounting . 16
4.6.1 Surface-type RCCB . 16
4.6.2 Flush-type RCCB . 16
4.6.3 Panel board type RCCB, also referred to as distribution board type . 16
4.7 According to the method of connection . 16
4.7.1 RCCB for which the electrical connections are not associated with the
mechanical mounting . 16
4.7.2 RCCB for which the electrical connections are associated with the
mechanical mounting . 16
4.8 According to the type of terminals . 17
4.8.1 RCCB with screw-type terminals for copper conductors . 17
4.8.2 RCCB with screwless type terminals for copper conductors . 17
4.8.3 RCCB with flat quick-connect terminals for copper conductors . 17
4.8.4 RCCB with screw-type terminals for aluminium conductors . 17
4.9 According to the number of poles and current paths . 17
4.9.1 Single-pole RCCB with two current paths . 17
4.9.2 Two-pole RCCB . 17
4.9.3 Three-pole RCCB . 17
4.9.4 Three-pole RCCB with four current paths . 17
4.9.5 Four-pole RCCB . 17
5 Characteristics of RCCBs . 17
5.1 Summary of characteristics . 17
5.2 Rated quantities and other characteristics . 18
5.2.1 Rated voltages . 18
5.2.2 Rated current (I ) . 18
n
5.2.3 Rated frequency . 18
5.2.4 Rated making and breaking capacity (I ) . 18
m
5.2.5 Rated residual operating current (I ) . 18
Δn
5.2.6 Rated residual non-operating current (I ) . 18
Δno
5.2.7 Rated residual making and breaking capacity (I ) . 18
Δm
5.2.8 Rated conditional short-circuit current (I ) . 19
nc
5.2.9 Rated conditional residual short-circuit current (I ) . 19
Δc
5.2.10 Operating characteristics in response to the type of residual current . 19
5.2.11 RCCB type S . 19
5.3 Standard and preferred values . 19
5.3.1 Standard values of rated operational voltage (U ) . 19
e
5.3.2 Preferred values of rated current (I ) . 19
n
5.3.3 Standard values of rated residual operating current (I ) . 19
Δn
5.3.4 Standard value of residual non-operating current (I ) . 20
Δno
5.3.5 Preferred values of rated frequency . 20
5.3.6 Standard values of rated impulse withstand voltage (U ) . 20
imp
5.3.7 Standard limit values of break time and non-actuating time for RCCB of
type AC and A . 20
5.3.8 Standard minimum value of non-operating overcurrent in the case of a
load through an RCCB with two current paths . 20
5.3.9 Standard minimum value of the non-operating overcurrent in the case of
a single-phase load through a three-pole or four-pole RCCB . 20
5.3.10 Standard minimum value of the rated making and breaking capacity
(I ) . 20
m
5.3.11 Standard minimum value of the rated residual making and breaking
cap
...
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