FprEN IEC 61008-2-1:2026/FprAA:2026

• Abstract:

  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.

• Status: Not Published
• Publication Date: 04-Feb-2027
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• Technical Committee: CLC/TC 23E - Circuit breakers and similar devices for household and similar applications
• Drafting Committee: CLC/TC 23E/WG 01 - Maintenance of TC23E standards
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Start Date: 03-Aug-2026
• Due Date: 12-Feb-2027
• Completion Date: 03-Aug-2026
• Ref Project: oSIST prEN IEC 61008-2-1:2026/oprAA:2026 - 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

• Amends: FprEN IEC 61008-2-1:2026 - 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
• Effective Date: 22-Jul-2025

Overview

FprEN IEC 61008-2-1:2026/FprAA:2026 defines requirements and test methods for residual current operated circuit-breakers without integral overcurrent protection (RCCBs) intended for household and similar applications. This document specifically applies to RCCBs classified under IEC 61008-1:2024, classification 4.1.1. These devices are designed for use at supply voltages up to 440 V AC, frequencies of 50 Hz, 60 Hz, or 50/60 Hz, and rated currents up to 125 A. Their principal function is to provide protection against electrical shock hazards by disconnecting a circuit whenever a dangerous residual current is detected.

This amendment to the European Standard ensures conformity to updated testing conditions and national practices across European countries, promoting harmonized safety and reliability for RCCBs. The requirements stipulated are also used for product certification, underpinning market access and regulatory compliance.

Key Topics

• Scope and Coverage: Applies to residual current circuit-breakers without integral overcurrent protection for residential and equivalent settings.
• Environmental Testing: Includes new provisions for verifying RCCB operation at low ambient air temperatures, specifically between −25 °C and +40 °C.
• Testing Procedures: Modifies and updates testing circuits, procedures, and sequences compared to previous standards; ensures that RCCBs function correctly under defined conditions.
• Sample Requirements: Adjusts the number of test samples and sequences needed for both full and simplified compliance procedures.
• National Conditions: Addresses special requirements and restrictions in certain European countries (e.g., prohibition of type AC RCCBs in Germany).
• Normative References: Integrates and cross-references international and European standards for consistent application and market alignment.

Applications

RCCBs covered by this standard are essential for:

• Residential and Similar Buildings: Providing electrical shock protection for occupants by disconnecting power swiftly in the event of a residual current.
• Electrical Panels and Installations: Installation in distribution boards to ensure compliance with safety regulations across varied voltage and current ranges.
• Cold Climate Environments: Suitability for use in enclosures that may be exposed to extreme temperatures, with verified performance from −25 °C to +40 °C.
• Regulatory Compliance and Product Certification: Facilitates manufacturers and installers in meeting both European and international certification requirements for electrical safety devices.

Related Standards

For full compliance and best practices within household and similar electrical installations, the following standards are closely related and often referenced:

• IEC 61008-1:2024 - Residual current operated circuit-breakers without integral overcurrent protection – Part 1: General rules
• IEC 61543:2022 / EN IEC 61543:2023 - Electromagnetic compatibility for residual current-operated protective devices (RCDs)
• IEC 62873-2 - Vocabulary for residual current operated circuit-breakers and related RCDs

FprEN IEC 61008-2-1:2026/FprAA:2026 works in conjunction with these documents to ensure robust, reliable installation safety.

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By adhering to the requirements in this updated standard, manufacturers, electrical contractors, and regulatory bodies can achieve harmonized safety and performance levels for RCCBs across Europe and similar markets. This helps guarantee that circuit protection solutions remain effective, even under challenging environmental conditions, while facilitating streamlined market acceptance and regulatory approval.

SLOVENSKI STANDARD
01-februar-2026
Odklopniki na preostali (residualni) tok brez vgrajene nadtokovne zaščite za
gospodinjsko in podobno rabo (RCCB's) - 2-1. del: Odklopniki na preostali
(residualni) tok brez vgrajene nadtokovne zaščite v skladu s klasifikacijo 4.1.1
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
Fehlerstrom-/Differenzstrom-Schutzschalter ohne eingebauten Überstromschutz für
Hausinstallationen und für ähnliche Anwendungen (RCCBs) - Teil 2-1: RCCBs nach
Klassifikation 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
Ta slovenski standard je istoveten z: prEN IEC 61008-2-1:2026/prAA:2026
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
oSIST prEN IEC 61008-2- en
1:2026/oprAA:2026
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
prEN IEC 61008-2-1:2026
NORME EUROPÉENNE
EUROPÄISCHE NORM
prAA
January 2026
ICS 29.120.50 -
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
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
This draft amendment prAA, if approved, will modify the European Standard prEN IEC 61008-2-1:2026; it is submitted to CENELEC
members for enquiry.
Deadline for CENELEC: 2026-04-24.
It has been drawn up by CLC/TC 23E.
If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.
This draft amendment 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: 82332 Ref. No. prEN IEC 61008-2-1:2026/prAA:2026 E

prEN IEC 61008-2-1:2026/prAA:2026 (E)
Contents Page
European foreword . 3
1 Modification to 9.9.1.1, “Test circuit and test procedure” . 4
2 Modification to 9.15.1, “General test conditions” . 4
3 Addition of 9.Z1, “Verification of the correct operation at low ambient air temperatures for
RCCBs for use at temperatures between −25 °C and +40 °C” . 4
4 Modification to Figure 2, “Test circuit for the verification of operating characteristics, and
trip-free mechanism for RCCBs classified according to 4.1.1” . 5
5 Addition of Figure Z6, “Test cycle for low temperature test (9.Z1)”. 5
6 Modification to Table A.1, “Test sequences” . 5
7 Modification to Clause A.2, “Number of samples to be submitted for full test procedure” . 5
8 Modifications to Table A.2, “Number of samples for full test procedure” . 5
9 Modifications to Table A.3, “Number of samples for simplified test procedure” . 6
10 Modifications to Table A.4, “Test sequences for RCCBs of different classification
according to 4.3 of IEC 61008-1:2024” . 6
11 Addition of Annex ZA, “Normative references to international publications with their
corresponding European publications” . 6
12 Addition of Annex ZB, “Special National Conditions” . 7
prEN IEC 61008-2-1:2026/prAA:2026 (E)

European foreword
This document (prEN IEC 61008-2-1:2026/prAA:2026) has been prepared by CLC/TC 23E “Circuit breakers
and similar devices for household and similar applications”.
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this (doa) dav + 6 months
document 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
conflicting with this document have to be be confirmed or
withdrawn modified when voting)
This document is read in conjunction with prEN IEC 61008-2-1:2026.
This document includes the following significant technical modifications with respect to prEN
IEC 61008-2-1:2026:
— Only the essential common changes existing in EN 61008-2-1:1994 and all of its amendments and
corrigenda (if any) are maintained in this document.
prEN IEC 61008-2-1:2026/prAA:2026 (E)
1 Modification to 9.9.1.1, “Test circuit and test procedure”
Delete the last paragraph.
2 Modification to 9.15.1, “General test conditions”
Delete the 3rd paragraph.
3 Addition of 9.Z1, “Verification of the correct operation at low ambient air
temperatures for RCCBs for use at temperatures between −25 °C and +40 °C”
Add the following subclause:
“9.Z1 Verification of the correct operation at low ambient air temperatures for RCCBs for use at
temperatures between −25 °C and +40 °C
Enclosed-type RCCBs are tested in their enclosure, unenclosed-type RCCBs are mounted in an individual
enclosure with a degree of protection IP55, and are connected as for normal use (see Figure 2).
No drain hole in the enclosure shall be opened for this test.
NOTE RCCBs tested in enclosures IP55
...