Appliance couplers for household and similar general purposes - Part 2-3: Appliance couplers with a degree of protection higher than IPX0

IEC 60320-2-3:2018 is now available as IEC 60320-2-3:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60320-1:2018 applies with the following addition: This document applies to appliance couplers with a degree of protection against ingress of water higher than IPX0. This second edition cancels and replaces the first edition published in 1998 and Amendment 1:2004. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Aligned with IEC 60320-1:2015.
- The scope is extended to cover current ratings up to and including 16 A.
- The scope is extended to cover Class I appliance couplers.
- The scope is extended to cover appliance couplers for hot and very hot conditions.
- Added classification regarding the use of retaining devices.
- Added classification for indoor and outdoor use.

Connecteurs pour usages domestiques et usages généraux analogues - Partie 2-3: Connecteurs avec degré de protection supérieur à IPX0

IEC 60320-2-3:2018 est disponible sous forme de IEC 60320-2-3:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L’IEC 60320-1 s'applique avec l’ajout suivant: Le présent document est applicable aux connecteurs avec un degré de protection contre la pénétration de l’eau supérieur à IPX0. Cette deuxième édition annule et remplace la première édition parue en 1998 et l’Amendement 1:2004. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- Alignement avec l'IEC 60320-1:2015.
- Le domaine d’application est étendu afin de couvrir les courants assignés jusqu’à et y compris 16 A.
- Le domaine d’application est étendu afin de couvrir les connecteurs de Classe I.
- Le domaine d’application est étendu afin de couvrir les connecteurs pour conditions chaudes et très chaudes.
- Ajout d’une classification relative à l’utilisation de dispositifs de retenue.
- Ajout d’une classification relative à l’utilisation à l’intérieur et à l’extérieur.

General Information

Status
Published
Publication Date
28-Jun-2018
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
29-Jun-2018
Ref Project

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IEC 60320-2-3
Edition 2.0 2018-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Appliance couplers for household and similar general purposes –
Part 2-3: Appliance couplers with a degree of protection higher than IPX0
Connecteurs pour usages domestiques et usages généraux analogues –
Partie 2-3: Connecteurs avec degré de protection supérieur à IPX0
IEC 60320-2-3:2018-06(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60320-2-3
Edition 2.0 2018-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Appliance couplers for household and similar general purposes –
Part 2-3: Appliance couplers with a degree of protection higher than IPX0
Connecteurs pour usages domestiques et usages généraux analogues –
Partie 2-3: Connecteurs avec degré de protection supérieur à IPX0
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.30 ISBN 978-2-8322-5823-1

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60320-2-3:2018 © IEC 2018
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 General requirements ...................................................................................................... 6

5 General notes on tests .................................................................................................... 6

6 Standard ratings .............................................................................................................. 6

7 Classification ................................................................................................................... 6

8 Marking ........................................................................................................................... 6

9 Dimensions and compatibility .......................................................................................... 7

10 Protection against electric shock ..................................................................................... 7

11 Provision for earthing ...................................................................................................... 7

12 Terminals and terminations .............................................................................................. 8

13 Construction .................................................................................................................... 8

14 Moisture resistance ......................................................................................................... 9

15 Insulation resistance and electric strength ....................................................................... 9

16 Forces necessary to insert and to withdraw the connector/appliance outlet .................... 10

17 Operation of contacts .................................................................................................... 12

18 Resistance to heating of appliance couplers for hot conditions or very hot

conditions ...................................................................................................................... 12

19 Breaking capacity .......................................................................................................... 12

20 Normal operation ........................................................................................................... 12

21 Temperature rise ........................................................................................................... 12

22 Cords and their connection ............................................................................................ 12

23 Mechanical strength ...................................................................................................... 13

24 Resistance to heat and ageing....................................................................................... 14

25 Screws, current-carrying parts and connections ............................................................. 14

26 Clearances, creepage distances and solid insulation ..................................................... 14

27 Resistance of insulating material to heat, fire and tracking ............................................ 14

28 Resistance to rusting ..................................................................................................... 14

29 Electromagnetic compatibility (EMC) requirements ........................................................ 14

Annex A (normative) Proof tracking test ............................................................................... 15

Annex B (normative) Routine tests for factory wired appliance couplers related to

safety.................................................................................................................................... 16

Annex C (normative) Test schedule ..................................................................................... 17

Annex D (informative) Comparison of typical conductor cross-sectional areas ..................... 18

Figure 101 – Example of apparatus for inadvertent disengagement (see 16.101) ................. 11

Table 101 – Pull forces for retaining devices ......................................................................... 12

Table 10 – Types of cord for the rewirable connector/plug connector test ............................. 13

---------------------- Page: 4 ----------------------
IEC 60320-2-3:2018 © IEC 2018 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –
Part 2-3: Appliance couplers with a degree
of protection higher than IPX0
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,

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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

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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

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6) All users should ensure that they have the latest edition of this publication.

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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 60320-2-3 has been prepared by subcommittee 23G: Appliance

couplers, of IEC technical committee 23: Electrical accessories.
This second edition cancels and replaces the first edition published in 1998 and
Amendment 1:2004. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) Aligned with IEC 60320-1:2015.
b) The scope is extended to cover current ratings up to and including 16 A.
c) The scope is extended to cover Class I appliance couplers.
---------------------- Page: 5 ----------------------
– 4 – IEC 60320-2-3:2018 © IEC 2018

d) The scope is extended to cover appliance couplers for hot and very hot conditions.

e) Added classification regarding the use of retaining devices.
f) Added classification for indoor and outdoor use.
The text of this International Standard is based on the following documents:
FDIS Report on voting
23G/401/FDIS 23G/403/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 has been drafted in accordance with the ISO/IEC Directives, Part 2.

This Part 2-3 is to be used in conjunction with IEC 60320-1: Appliance couplers for household

and similar general purposes – Part 1: General requirements. It was established on the basis

of the third edition of that standard (2015).

The clauses of this standard supplement or modify the corresponding clauses in IEC 60320-1.

When a particular subclause or annex of Part 1 is not mentioned in this Part 2-3, the

subclause or annex of IEC 60320-1 applies as far as is reasonable. Where this standard

states “addition”, “amendment” or “replacement”, the relevant requirement, test specification

or explanatory matter in IEC 60320-1 is to be adapted accordingly.

Subclauses which are additional to those in Part 1 are numbered starting from 101.

In this particular standard the following print types are used:
• requirements: in roman type;
• test specifications: in italic type;
• explanatory matter: in smaller roman type.

A list of all parts in the IEC 60320 series, published under the general title Appliance couplers

for household and similar general purposes, 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.
---------------------- Page: 6 ----------------------
IEC 60320-2-3:2018 © IEC 2018 – 5 –
APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –
Part 2-3: Appliance couplers with a degree
of protection higher than IPX0
1 Scope
This clause of IEC 60320-1 applies with the following addition:

This document applies to appliance couplers with a degree of protection against ingress of

water higher than IPX0.
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.
This clause of IEC 60320-1 applies with the following additions:

IEC 60320-1, Appliance couplers for household and similar general purposes – Part 1:

General requirements

IEC 60320-3, Appliance couplers for household and similar general purposes – Part 3:

Standard sheets and gauges
IEC 60529, Degrees of protection provided by enclosures (IP code)
3 Terms and definitions
This clause of IEC 60320-1 applies with the following additions:
3.101
accessible surface

surface of an accessory that can be touched by means of the test probe B of IEC 61032

(standard test finger), when the accessory is assembled as in normal use and in the following

conditions:

a) for connectors and appliance outlets: without the complementary accessory in engagement

but with the cover in the open position;

b) for plug connectors and appliance inlets: with the complementary accessory in the most

unfavourable degree of engagement but such that electrical contact is made between the

contacts (pins and tubes).
3.102
cover

part that is accessible when the accessory is in normal use and removable only with the use

of a tool, but which does not require the use of a tool to open it
---------------------- Page: 7 ----------------------
– 6 – IEC 60320-2-3:2018 © IEC 2018
4 General requirements
This clause of IEC 60320-1 applies.
5 General notes on tests
This clause of IEC 60320-1 applies.
6 Standard ratings
This clause of IEC 60320-1 applies.
7 Classification
This clause of IEC 60320-1 applies with the following additions:
7.101 Retaining devices:
a) with retaining device
b) without retaining device
7.102 Appliance coupler without retaining device.
NOTE Only to be used where permitted by the end product standard.
8 Marking
This clause of IEC 60320-1 applies amended as follows:
8.2 Addition:
– IP rating.
8.4 Addition:
IP rating for example IPX4
NOTE 101 In the IP code the letter "X” is replaced by the relevant number.
Additional subclauses (following 8.8):
8.101 Colours of outdoor cables

Cords of non-rewirable accessories for outdoor use shall not be coloured black, green, white

or brown.
8.102 Instructions for retail sale

For couplers intended for retail sale the supplier shall include an instruction leaflet, on or

inside the sales package, with each coupler or accessory, clearly describing the extent of its

suitability for use outdoors. Information regarding weather resistance shall be clearly visible to

the purchaser and a recommendation shall be made that the cord to be fitted to the accessory

should not be coloured black, green, white or brown. The instruction sheet shall include

information stating that the plug connector shall be connected to the equipment and the

connector to the mains supply side.
---------------------- Page: 8 ----------------------
IEC 60320-2-3:2018 © IEC 2018 – 7 –

If the coupler or accessory is non-rewirable with a cord attached, each free end shall be

marked for connection to the appliance or mains supply as appropriate, with guidance on the

danger of an incorrect connection or of a connection to an appliance requiring the protection

of an earth continuity conductor.

Except when a plug connector or appliance inlet fitted with a cord is supplied direct to a

manufacturer for incorporation in other equipment, the free end of such an assembly shall

have a label attached stating:

"The cord of this accessory must be properly connected to a piece of equipment before the

appliance is energized."

If the coupler or accessory is rewirable, instructions shall be provided on the following:

a) stripping lengths for sheath and insulation;

b) identity of accessories to be connected to appliance or mains cord, as appropriate;

c) connection of brown wire to terminal marked L and blue wire to terminal marked N;

d) importance of correct assembly of cord anchorage including need for at least 3 mm of

sheath to protrude beyond the clamping device;
e) suitable for use with circular type cords only.
Compliance with the requirements of 8.101 and 8.102 is checked by inspection.
9 Dimensions and compatibility
This clause of IEC 60320-1 applies with the following addition:
Additional subclause (following 9.5):
9.101 Retaining devices

For standardized appliance couplers the provision for retaining the connector in the plug

connector or appliance inlet shall comply with the relevant standard sheets.
NOTE The relevant standard sheets can be found in IEC 60320-3.
Compliance is checked by the tests of 16.101.

For non-standardized appliance couplers the provision for retaining the connector in the plug

connector or appliance inlet shall comply with the manufacturer’s specifications.

10 Protection against electric shock
This clause of IEC 60320-1 applies amended as follows:
10.1 Addition after the second paragraph:
Test is performed with the cover open.
11 Provision for earthing
This clause of IEC 60320-1 applies.
---------------------- Page: 9 ----------------------
– 8 – IEC 60320-2-3:2018 © IEC 2018
12 Terminals and terminations
This clause of IEC 60320-1 applies.
13 Construction
This clause of IEC 60320-1 applies with the following additions:
Additional subclauses (following 13.10):
13.101 Protection against ingress of water when in engagement

Appliance couplers shall incorporate means for ensuring the required degree of protection

against ingress of water when both parts of the appliance couplers are fully engaged.

Compliance is checked by inspection and by the test of 14.101.
13.102 Protection against ingress of water when not in engagement

A connector or plug connector, when fitted with a cord for normal use and when not in

engagement with the complementary accessory, shall comply with Clause 10 and 14.101.

13.103 Covers for protection against ingress of water when not in engagement

Connectors and appliance outlets shall be provided with a cover to achieve the required

degree of protection against moisture when the complementary accessory is not in position.

The cover of a standardized appliance coupler shall be self-closing and shall be securely

fixed to the connector or appliance outlet.
Compliance with the requirements of 13.102 and 13.103 is checked by the tests of
Clauses 10, 20, 23, 28 and 14.101.
13.104 Protection against ingress of water for integrated appliance couplers

Appliance inlets and appliance outlets integrated or incorporated in the electrical appliance or

equipment shall incorporate means of ensuring the required degree of protection against

ingress of water, from the open interface to the terminals or terminations.
Compliance is checked by inspection and the test of 14.101.
13.105 Requirements for cover springs

The cover spring(s), if any, of connectors and appliance outlets shall be sufficiently strong to

rapidly close the cover when the complementary accessory is not engaged, and to withstand

opening and closing in normal operation to an angle of not less than 90° and not more than

100°. The cover and associated spring(s), if any, shall withstand damage when opened to the

fullest extent and shall be of corrosion-resistant materials.

This test is not applicable to couplers without retaining device, classified in 7.102.

Compliance with the requirements for corrosion-resistant materials is checked by the test of

Clause 28.

Compliance is checked by inspection and by the following test. At the end of the test the

cover shall close as required by this document.
---------------------- Page: 10 ----------------------
IEC 60320-2-3:2018 © IEC 2018 – 9 –

The cover shall be opened to its fullest extent and allowed to close under the influence of the

associated spring(s), in sequence, 4 000 times at a rate of 15 ± 2 times per minute.

14 Moisture resistance
This clause of IEC 60320-1 applies amended as follows:
Replacement of the seventh paragraph:
The specimens are kept in the cabinet for 168 h (7 days).
Additional subclause:

14.101 Accessories shall have a degree of protection higher than IPX0 according to

IEC 60529.

Compliance is checked by the appropriate test of IEC 60529 and with the treatment specified

below, followed immediately by wiping the surplus surface water from the accessory and

carrying out the electric strength test of Clause 15.

Accessories shall withstand the electric strength test and inspection shall show that water has

not entered the samples to any appreciable extent and has not reached current-carrying parts.

Accessories designed for attachment by cord are tested as follows:
a) for non-rewirable accessories, with the cord supplied;
b) for 6 A rewirable accessories, with 0,75 mm cord;
2 2
c) for 10 A rewirable accessories, with 0,75 mm and 1 mm cord;
2 2
d) for 16 A rewirable accessories, with 1 mm and 1,5 mm cord.

Appliance inlets and appliance outlets are tested when mounted in or on a suitable watertight

enclosure, in accordance with the manufacturer´s instructions for mounting.

Fixing screws of enclosures and covers are tightened with a torque equal to two-thirds of the

appropriate torque given in Clause 25. The accessories are placed in the most unfavourable

position.

Connectors and appliance outlets are tested with and also without the complementary

accessory in engagement, the means for ensuring the required degree of protection against

moisture (as specified in 13.102) being positioned as in normal use.
15 Insulation resistance and electric strength
This clause of IEC 60320-1 applies.
---------------------- Page: 11 ----------------------
– 10 – IEC 60320-2-3:2018 © IEC 2018
16 Forces necessary to insert and to withdraw the connector/appliance outlet
This clause of IEC 60320-1 applies with the following addition:
Additional subclause:
16.101 Verification of the retaining device

A retaining device shall be provided to prevent inadvertent disconnection of the accessories

when engaged. The retaining catch shall operate correctly. It shall be possible to insert or

withdraw the connector and operate the retaining catch with two hands without difficulty.

This test is not applicable to couplers without retaining device, classified in 7.101 b).

Compliance is checked by manual operation and by the following test. During this test the

connection between the accessories shall be maintained during the application of the principal

weight and shall disconnect when the supplementary weight is applied.

The maximum and minimum forces necessary to separate the coupler are determined by

means of an apparatus as shown in Figure 101. This apparatus comprises a mounting

plate (A) and an appliance coupler wired as in normal use (B), mounted so that the coupler

hangs vertically with the plug connector or appliance inlet downwards.
---------------------- Page: 12 ----------------------
IEC 60320-2-3:2018 © IEC 2018 – 11 –
Dimensions in millimetres
Cable clamp
(A) Mounting plate
(B) Appliance coupler
(F) Cable
(E) Supplementary mass
(D) Principal mass
(C) Carrier
150 ±2,5
IEC
Figure 101 – Example of apparatus for inadvertent
disengagement (see 16.101)

For rewirable appliance couplers using cord anchorages with clamping screws, these screws

are tig
...

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