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IEC 62873-3-2
Edition 2.0 2020-11
INTERNATIONAL
STANDARD
Residual current operated circuit-breakers for household and similar use –
Part 3-2: Particular requirements for devices with flat quick-connect
terminations
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IEC 62873-3-2
Edition 2.0 2020-11
INTERNATIONAL
STANDARD
Residual current operated circuit-breakers for household and similar use –
Part 3-2: Particular requirements for devices with flat quick-connect
terminations
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.50 ISBN 978-2-8322-9026-2
– 2 – IEC 62873-3-2:2020 © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Classification . 7
5 Characteristics of products . 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 . 8
8.1 General . 8
8.2 Terminals for external conductors . 8
9 Tests . 12
9.1 General . 12
9.2 Mechanical overload force . 12
9.3 Additional requirements for temperature rise . 12
Bibliography . 13
Figure 1 – Dimensions of male tabs . 9
Figure 2 – Dimensions of round dimple detents (see Figure 1) . 10
Figure 3 – Dimensions of rectangular dimple detents (see Figure 1) . 10
Figure 4 – Dimensions of hole detents . 11
Figure 5 – Dimensions of female connectors . 11
Figure 6 – Example of position of the thermocouple for measurement of the
temperature rise . 12
Table 1 – Colour code of female connectors in relationship with the cross-section of
the conductor . 7
Table 2 – Dimensions of tabs . 8
Table 3 – Dimensions of female connectors . 11
Table 4 – Retention force . 12
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS
FOR HOUSEHOLD AND SIMILAR USE –
Part 3-2: Particular requirements for devices
with flat quick-connect terminations
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
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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
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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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62873-3-2 has been prepared by subcommittee 23E: Circuit
breakers and similar equipment for household use, of IEC technical committee 23: Electrical
accessories.
This second edition cancels and replaces the first edition published in 2016. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Modification of the scope to address other devices in addition to RCDs;
b) Modification of 8.1 so that IEC 62873-3-2 can be referred to by other product standards in
addition to those for RCDs;
c) Modification of 9.1 so that IEC 62873-3-2 can be referred to by other product standards in
addition to those for RCDs.
– 4 – IEC 62873-3-2:2020 © IEC 2020
The text of this International Standard is based on the following documents:
FDIS Report on voting
23E/1195/FDIS 23E/1201/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document is intended to be referred to by a product standard of subcommittee IEC SC23E
(e.g. from the IEC 61008 series, IEC 61009 series, IEC 62606, and IEC 63052).
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 62873 series, published under the general title Residual current
operated circuit-breakers for household and similar use, 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 "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
This document is part of the series described in the outline document IEC 62873-1.
– 6 – IEC 62873-3-2:2020 © IEC 2020
RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS
FOR HOUSEHOLD AND SIMILAR USE –
Part 3-2: Particular requirements for devices
with flat quick-connect terminations
1 Scope
This document applies to devices equipped with flat quick-connect terminations consisting of a
male tab with nominal width 6,3 mm and thickness 0,8 mm, to be used with a mating female
connector for connecting electrical copper conductors according to the manufacturer's
instructions, for rated currents up to and including 16 A.
NOTE The use of flat quick-connect terminations for rated currents up to and including 20 A is accepted in BE, FR,
IT, ES, PT and US.
This document cannot be used alone but is intended to be applied together with the applicable
product standard in which it is referred to.
The connectable electrical copper conductors are flexible, having a cross-sectional area up to
and including 4 mm , or rigid-stranded, having a cross-sectional area up to and including
2,5 mm (AWG equal to or greater than 12).
This document applies exclusively to products having male tabs as an integral part of the
device.
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 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 the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• ISO Online browsing platform: available at http://www.iso.org/obp
• IEC Electropedia: available at http://www.electropedia.org/
3.1
flat quick-connect termination
electrical connection consisting of a male tab (3.2) and a female connector (3.3) which can be
pushed into and withdrawn with or without the use of a too
...