prEN IEC 61008-2-1:2026

SLOVENSKI STANDARD
01-februar-2026
Odklopniki na preostali (residualni) tok brez vgrajene nadtokovne zaščite za
gospodinjsko in podobno rabo (RCCB) - 2-1. del: RCBO v skladu s klasifikacijo
4.1.1 (IEC 61008-2-1:2024)
Residual current operated circuit-breakers without integral overcurrent protection for
household and similar uses (RCCBs) - Part 2-1: RCCBs according to classification 4.1.1
(IEC 61008-2-1:2024)
Fehlerstrom-/Differenzstrom-Schutzschalter ohne eingebauten Überstromschutz für
Hausinstallationen und für ähnliche Anwendungen (RCCBs) - Teil 2-1: RCCBs nach
Klassifikation 4.1.1 (IEC 61008-2-1:2024)
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de protection
contre les surintensités incorporé pour usages domestiques et analogiques (ID) - Partie
2-1: ID conformes à la classification en 4.1.1 (IEC 61008-2-1:2024)
Ta slovenski standard je istoveten z: prEN IEC 61008-2-1:2026
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
prEN IEC 61008-2-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2026
ICS 29.120.50 Will supersede EN 61008-2-1:1994; EN 61008-2-
1:1994/A11:1998; EN 61008-2-
1:1994/A11:1998/corrigendum Mar. 1999
English Version
Residual current operated circuit-breakers without integral
overcurrent protection for household and similar uses (RCCBs) -
Part 2-1: RCCBs according to classification 4.1.1
(IEC 61008-2-1:2024)
Interrupteurs automatiques à courant différentiel résiduel Fehlerstrom-/Differenzstrom-Schutzschalter ohne
sans dispositif de protection contre les surintensités eingebauten Überstromschutz für Hausinstallationen und
incorporé pour usages domestiques et analogiques (ID) - für ähnliche Anwendungen (RCCBs) - Teil 2-1: RCCBs
Partie 2-1: ID conformes à la classification en 4.1.1 nach Klassifikation 4.1.1
(IEC 61008-2-1:2024) (IEC 61008-2-1:2024)
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2026-04-24.
The text of this draft consists of the text of IEC 61008-2-1:2024 (23E/1261/CDV).
If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 82326 Ref. No. prEN IEC 61008-2-1:2026 E

European foreword
This document (prEN IEC 61008-2-1:2026) consists of the text of IEC 61008-2-1:2024, prepared by
IEC/SC 23E “Circuit-breakers and similar equipment for household use” of IEC/TC 23 “Electrical
accessories”.
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this document (doa) dav + 6 months
has to be announced at national level
• latest date by which this document has to be (dop) dav + 12 months
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards (dow) dav + 60 months (to be
conflicting with this document have to be withdrawn confirmed or
modified when voting)
This document will supersede EN 61008-2-1:1994 and all of its amendments and corrigenda (if any).
This document is read in conjunction with prEN IEC 61008-2-1:2026/prAA:2026.

IEC 61008-2-1 ®
Edition 2.0 2024-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) –
Part 2-1: RCCBs according to classification 4.1.1
Interrupteurs automatiques à courant différentiel résiduel sans dispositif de
protection contre les surintensités incorporé pour usages domestiques et
analogiques (ID) –
Partie 2-1: ID conformes à la classification en 4.1.1
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8327-0008-2
– 2 – IEC 61008-2-1:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Classification . 7
4.1 According to the supply conditions . 7
4.1.1 RCCB operating correctly on the occurrence of residual current . 7
5 Characteristics of RCCBs . 7
6 Marking and other product information . 7
7 Standard conditions for operation in service and for installation . 7
8 Requirements for construction and operation . 7
9 Tests . 7
9.1 General . 7
9.8 Test of temperature-rise . 7
9.8.2 Test procedure . 7
9.9 Verification of the operating characteristics . 8
9.9.1 Verification of the operating characteristics under residual current
conditions . 8
9.15 Verification of the trip-free mechanism . 11
9.15.1 General test conditions . 11
9.15.2 Test procedure . 11
9.18 Verification of the behaviour of RCCBs in the event of overcurrent in the
main circuit . 11
9.19 Verification of the behaviour of RCCBs in event of current surges caused by
impulse voltages . 11
9.19.1 Current surge test for all RCCBs (0,5 µs / 100 kHz ring wave test) . 11
9.19.2 Verification of the behaviour at surge currents up to 3 000 A (8/20 µs
surge current test) . 12
9.20 Verification of reliability . 12
9.20.2 Test with temperature of 40 °C . 12
9.21 Verification of withstand against ageing . 12
9.22 Electromagnetic compatibility (EMC) . 12
Annex A (normative) Test sequence and number of samples to be submitted for
certification purposes . 16
A.1 Test sequences . 16
A.2 Number of samples to be submitted for full test procedure . 17
A.3 Number of samples to be submitted for simplified test procedures in the
case if submitting simultaneously a range of RCCBs of the same
fundamental design . 18
Annex D (normative) Routine tests . 22
D.3 Dielectric strength test . 22
Bibliography . 23

Figure 2 – Test circuit for the verification of operating characteristics and trip-free
mechanism for RCCBs classified according to 4.1.1 . 13
Figure 3 – Test circuit for the verification of the correct operation in the case of
residual pulsating direct currents for RCCBs classified according to 4.1.1 . 14

IEC 61008-2-1:2024 © IEC 2024 – 3 –
Figure 4 – Test circuit for the verification of the correct operation in the case of
residual pulsating direct currents in the presence of a standing smooth direct current of
0,006 A for RCCBs classified according to 4.1.1 . 15

Table A.1 – Test sequences . 16
Table A.2 – Number of samples for full test procedure . 18
Table A.3 – Number of samples for simplified test procedure . 19
Table A.4 – Test sequences for RCCBs of different classification according to 4.3 of
IEC 61008-1:2024 . 21

– 4 – IEC 61008-2-1:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS
WITHOUT INTEGRAL OVERCURRENT PROTECTION
FOR HOUSEHOLD AND SIMILAR USES (RCCBs) –

Part 2-1: RCCBs 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 61008-2-1 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 1990. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– harmonization of all clauses between the IEC 61008, IEC 61009 and IEC 60755 series using
blocks and modules approach;
IEC 61008-2-1:2024 © IEC 2024 – 5 –
– harmonization of all tables and figures between the IEC 61008, IEC 61009 and IEC 60755
series;
– terms and definitions are now referred to IEC 62873-2;
– modification of 4.1 for classification according to supply conditions;
– specific tests for operating characteristics (9.9) of RCCB according to classification 4.1.1;
– 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/1369/FDIS 23E/1386/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 61008-1:2024.
Where this document states "addition", "deletion" or "replacement", the corresponding
requirement, test specification or explanatory material in IEC 61008-1:2024 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 61008 series, published under the general title Residual current
operated circuit-breakers without integral overcurrent protection for household and similar uses
(RCCBs), 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.
– 6 – IEC 61008-2-1:2024 © IEC 2024
RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS
WITHOUT INTEGRAL OVERCURRENT PROTECTION
FOR HOUSEHOLD AND SIMILAR USES (RCCBs) –

Part 2-1: RCCBs according to classification 4.1.1

1 Scope
IEC 61008-1:2024, Clause 1 is applicable except for the first paragraph, which is replaced by
the first paragraph below, and the last paragraph, which is replaced by the second paragraph
below:
This part of IEC 61008 applies to residual current operated circuit-breakers, without integral
overcurrent protection, for household and similar uses (hereafter referred to as RCCBs),
classified according to IEC 61008-1:2024, 4.1.1. RCCBs 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, intended principally for protection against shock hazard.
This document applies in conjunction with IEC 61008-1:2024. It specifies requirements, tests
and test sequences to verify compliance and is used for certification purposes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 61008-1:2024, Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) – Part 1: General rules
IEC 61543:2022, Residual current-operated protective devices (RCDs) for household and
similar use – Electromagnetic compatibility
IEC 62873-2, Residual current operated circuit-breakers for household and similar use – Part 2:
Residual current devices (RCDs) – Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62873-2 and in
IEC 61008-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/

IEC 61008-2-1:2024 © IEC 2024 – 7 –
4 Classification
IEC 61008-1:2024, Clause 4 applies with the following modifications (deletion of 4.1.2, 4.1.3,
4.1.4, 4.1.5 and 4.1.6):
4.1 According to the supply conditions
4.1.1 RCCB operating correctly on the occurrence of residual current
• within the voltage range 1,1 U and zero volt; and
e
• with any number of supply conductors connected.
The RCCB does not open automatically in the event of loss of supply.
5 Characteristics of RCCBs
IEC 61008-1:2024, Clause 5 applies.
6 Marking and other product information
IEC 61008-1:2024, Clause 6 applies.
7 Standard conditions for operation in service and for installation
IEC 61008-1:2024, Clause 7 applies.
8 Requirements for construction and operation
IEC 61008-1:2024, Clause 8 applies.
9 Tests
IEC 61008-1:2024, Clause 9 applies with the following modifications.
9.1 General
IEC 61008-1:2024, 9.1 applies with the following modification:
Replace the third paragraph by:
The test sequences and the number of samples to be submitted are stated in Annex A.
9.8 Test of temperature-rise
9.8.2 Test procedure
IEC 61008-1:2024, 9.8.2 applies with the following addition:
The test is performed at any convenient voltage.

– 8 – IEC 61008-2-1:2024 © IEC 2024
9.9 Verification of the operating characteristics
9.9.1 Verification of the operating characteristics under residual current conditions
9.9.1.1 Test circuit and test procedure
The RCCB is installed as for normal use.
The test circuit shall be of negligible inductance. For tests according to 9.9.1.2, the test circuit
shall correspond to Figure 2. For tests according to 9.9.1.3, the test circuit shall correspond to
Figure 3 or Figure 4, as applicable.
The instruments for the measurement of the residual current shall display (or allow to determine)
the true RMS value.
Unless otherwise specified in this document, the tests are performed with no load at the ambient
air temperature of 20 °C ± 5 °C.
The RCCB shall perform the tests of 9.9.1.2 and 9.9.1.3, as applicable.
Each test is performed by applying the residual current to one pole only, taken at random, with
five measurements, unless otherwise specified in this document. The other poles shall not be
connected to the supply, unless otherwise specified in this document.
For RCCBs having more than one rated frequency, the tests shall be carried out at the lowest
and highest frequency, except for the test in 9.9.1.2.5 where verification is performed at one
frequency only.
For RCCBs having multiple settings of residual operating current, the tests shall be carried out
for each setting.
9.9.1.2 Tests for all RCCBs
9.9.1.2.1 Verification of correct operation in the case of a steady increase of the
residual current
The switch S and the RCCB being in the closed position, the residual current is steadily
increased, starting from a value not higher than 0,2 I , trying to attain the value of I within
Δn Δn
30 s. The test shall be performed five times, the tripping current being measured each time.
All five measured values shall be situated between I and I .
Δno Δn
9.9.1.2.2 Verification of correct operation on closing on a residual current
The test circuit being calibrated at the value of the rated residual operating current I and the
Δn
switch S being closed, the RCCB is closed to simulate service conditions as closely as
possible.
The break time is measured five times. No measurement shall exceed the limiting value
specified for I in IEC 61008-1:2024, Table 11, according to the type of RCCB.
Δn
IEC 61008-2-1:2024 © IEC 2024 – 9 –
9.9.1.2.3 Verification of correct operation in the case of sudden appearance of
residual current
1) All types
The test circuit being successively calibrated at each of the values of residual current
specified in IEC 61008-1:2024, Table 11, the RCCB being in the closed position, the test
current is suddenly established by closing the switch S .
The RCCB shall trip during each test.
Five measurements of the break time are carried out at each value of residual current.
No value shall exceed the relevant specifie
...