IEC 61009-2-1:2024

Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) - Part 2-1: RCBOs according to classification 4.1.1

IEC 61009-2-1:2024 applies to residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (hereafter referred to as RCBOs), classified according to IEC 61009-1:2024, 4.1.1. RCBOs according to this document are intended for voltages not exceeding 440 V AC with frequencies of 50 Hz, 60 Hz or 50/60 Hz and currents not exceeding 125 A and rated short‑circuit capacities not exceeding 25 000 A for operation at 50 Hz or 60 Hz.
This second edition cancels and replaces the first edition published in 1991. 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 Subclause 4.1 for classification according to supply conditions;
e) specific tests for operating characteristics (9.9) of RCBO according to classification 4.1.1;
f) specific test conditions for temperature-rise (9.8), verification of trip-free (9.15), surge current tests (9.19), reliability (9.20) and ageing (9.21).

Interrupteurs automatiques à courant différentiel résiduel avec protection contre les surintensités incorporée pour installations domestiques et analogues (DD) - Partie 2-1: DD conformes au 4.1.1

General Information

• Status: Published
• Publication Date: 20-Nov-2024
• 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: 06-Dec-2024
• Completion Date: 21-Nov-2024

Standards Content (Sample)

IEC 61009-2-1 ®
Edition 2.0 2024-11
INTERNATIONAL
STANDARD
Residual current operated circuit-breakers with integral overcurrent protection
for household and similar uses (RCBOs) –
Part 2-1: RCBOs according to classification 4.1.1

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.

IEC Secretariat 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 Products & Services Portal - products.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, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.

IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.

Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need

further assistance, please contact the Customer Service
Centre: [e-mail].
IEC 61009-2-1 ®
Edition 2.0 2024-11
INTERNATIONAL
STANDARD
Residual current operated circuit-breakers with integral overcurrent protection

for household and similar uses (RCBOs) –

Part 2-1: RCBOs according to classification 4.1.1

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.50  ISBN 978-2-8327-0012-9

– 2 – IEC 61009-2-1:2024 © IEC 2024
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Classification . 6
4.1 According to the supply conditions . 6
5 Characteristics of RCBOs . 6
6 Marking and other product information . 6
7 Standard conditions for operation in service and for installation . 6
8 Requirements for construction and operation . 6
9 Tests . 6
9.1 General . 6
Annex A (normative) Test sequence and number of samples to be submitted for
certification purposes . 15
A.1 Test sequences . 15
A.2 Number of samples to be submitted for full test procedure . 16
A.3 Number of samples to be submitted for simplified test procedures if
submitting simultaneously a range of RCBOs of the same fundamental
design . 17
Annex D (normative) Routine tests . 21
D.3 Dielectric strength test . 21
Bibliography . 22

Figure 2 – Test circuit for the verification of operating characteristics and trip-free
mechanism for RCBOs classified according to 4.1.1 . 12
Figure 3 – Test circuit for the verification of the correct operation in case of residual
pulsating direct currents for RCBOs classified according to 4.1.1 . 13
Figure 4 – Test circuit for the verification of the correct operation in case of residual
pulsating direct currents in the presence of a standing smooth direct current of 0,006 A
for RCBOs classified according to 4.1.1 . 14

Table A.1 – Test sequences . 15
Table A.2 – Number of samples for full test procedure . 17
Table A.3 – Number of samples for simplified test procedure . 18
Table A.4 – Test sequences for RCBOs having different instantaneous tripping
currents . 20
Table A.5 – Test sequences for RCBOs of different classification according to
IEC 61009-1:2024, 4.3 . 20

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS
WITH INTEGRAL OVERCURRENT PROTECTION
FOR HOUSEHOLD AND SIMILAR USES (RCBOs) –

Part 2-1: RCBOs according to classification 4.1.1

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 61009-2-1 has been prepared by subcommittee 23E: Circuit-breakers and similar
equipment for household use, of IEC technical committee 23: Electrical accessories. It is an
International Standard.
This second edition cancels and replaces the first edition published in 1991. 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;
– 4 – IEC 61009-2-1:2024 © IEC 2024
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 Subclause 4.1 for classification according to supply conditions;
e) specific tests for operating characteristics (9.9) of RCBO according to classification 4.1.1;
f) specific test conditions for temperature-rise (9.8), verification of trip-free (9.15), surge
current tests (9.19), reliability (9.20) and ageing (9.21).
The text of this International Standard is based on the following documents:
Draft Report on voting
23E/1371/FDIS 23E/1389/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This International Standard is to be used in conjunction with IEC 61009-1:2024.
Where this document states "addition", "deletion" or "replacement", the corresponding
requirement, test specification or explanatory material in IEC 61009-1:2024 is adapted
accordingly.
Where this document defines a new subclause, this subclause number starts at 100 (for
example an additional definition in this document would read 3.100).
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 61009 series, published under the general title Residual current
operated circuit-breakers with integral overcurrent protection for household and similar uses
(RCBOs), can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS
WITH INTEGRAL OVERCURRENT PROTECTION
FOR HOUSEHOLD AND SIMILAR USES (RCBOs) –

Part 2-1: RCBOs according to classification 4.1.1

1 Scope
IEC 61009-1:2024, Clause 1 is applicable except for the first paragraph and the last paragraph,
which are replaced by the following, respectively:
This document applies to residual current operated circuit-breakers with integral overcurrent
protection for household and similar uses (here
...