IEC 62873-3-2:2020

IEC 62873-3-2 ®
Edition 2.0 2020-11
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Residual current operated circuit-breakers for household and similar use –
Part 3-2: Particular requirements for RCDs devices with flat quick-connect
terminations
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IEC 62873-3-2 ®
Edition 2.0 2020-11
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Residual current operated circuit-breakers for household and similar use –

Part 3-2: Particular requirements for RCDs devices with flat quick-connect

terminations
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.50 ISBN 978-2-8322-9115-3

– 2 – IEC 62873-3-2:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 2
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Classification . 7
5 Characteristics of RCDs products . 7
6 Marking and other product information . 7
7 Standard conditions for operation in service and for installation . 8
8 Requirements for construction and operation . 8
8.1 General . 8
8.2 Terminals for external conductors . 8
9 Tests . 16
9.1 General . 16
9.2 Mechanical overload force . 16
9.3 Additional requirements for temperature rise . 16
Bibliography . 18

Figure 1 – Dimensions of male tabs . 11
Figure 2 – Dimensions of round dimple detents (see Figure 1) . 12
Figure 3 – Dimensions of rectangular dimple detents (see Figure 1) . 13
Figure 4 – Dimensions of hole detents . 14
Figure 5 – Dimensions of female connectors . 15
Figure 6 – Example of position of the thermocouple for measurement of the
temperature rise . 17

Table 1 – Colour code of female connectors in relationship with the cross-section of
the conductor . 8
Table 2 – Dimensions of tabs . 9
Table 3 – Dimensions of female connectors . 16
Table 4 – Overload test forces Retention force . 16

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS
FOR HOUSEHOLD AND SIMILAR USE –

Part 3-2: Particular requirements for RCDs devices
with flat quick-connect terminations

FOREWORD
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– 4 – IEC 62873-3-2:2020 RLV © IEC 2020
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.
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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

INTRODUCTION
This document is part of the series described in the outline document IEC 62873-1.

– 6 – IEC 62873-3-2:2020 RLV © IEC 2020
RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS
FOR HOUSEHOLD AND SIMILAR USE –

Part 3-2: Particular requirements for RCDs devices
with flat quick-connect terminations

1 Scope
This document applies to RCDs devices equipped with flat quick-connect terminations
consisting of a male tab (see 3.2) 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 RCDS with 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 an RCD product
standard (IEC 61008-1 or IEC 61009-1) if an RCD is equipped with flat quick-connect
terminations 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 RCDs 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 (inc
...