SIST EN IEC 60320-1:2022

Appliance couplers for household and similar general purposes - Part 1: General requirements (IEC 60320-1:2021)

This part of lEC 60320 sets the general requirements for appliance couplers for two poles and
two poles with earth contact and for the connection of electrical devices for household and
similar onto the mains supply.
This document is also valid for appliance inlets/appliance outlets integrated or incorporated in
appliances.
The rated voltage does not exceed 250 V (AC) and the rated current does not exceed 16 A.
Appliance couplers complying with this document are suitable for normal use at ambient
temperatures not normally exceeding +40 °C, but their average over a period of 24 h does not
exceed +35 °C, with a lower limit of the ambient air temperature of −5 °C.
Annex E provides test requirements for derating the operating current of an accessory when
used in ambient temperatures above +35 °C up to and including +90 °C.
Appliance couplers are not suitable for:
– use in place of plug and socket-outlet systems according to IEC 60884-1;
– use in place of devices for connecting luminaires (DCLs) according to IEC 61995 or
luminaire supporting couplers (LSCs);
– use in place of installation couplers according to IEC 61535.

Gerätesteckvorrichtungen für den Hausgebrauch und ähnliche allgemeine Zwecke –Teil 1: Allgemeine Anforderungen (IEC 60320-1:2021)

Connecteurs pour usages domestiques et usages généraux analogues - Partie 1: Exigences générales (IEC 60320-1:2021)

L'IEC 60320-1:2021 établit les exigences générales applicables aux connecteurs bipolaires et bipolaires avec contact de mise à la terre et destinés au raccordement au réseau d'alimentation des dispositifs électriques pour usages domestiques et analogues.
Le présent document s'applique également aux socles de connecteurs/socles femelles de connecteurs intégrés ou incorporés dans des appareils d'utilisation.
Cette quatrième édition annule et remplace la troisième édition parue en 2015 et l'Amendement 1:2018. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:

   
1. les tolérances nécessaires ont été ajoutées dans l'ensemble du présent document;

   
2. l'essai d'échauffement de l'édition 2 a été rétabli en 18.2;

   
3. l'échauffement a été ajouté à l'Article 21 pour les fiches mobiles mâles;

   
4. le 23.3 a été réorganisé pour des raisons de lisibilité;

   
5. l'essai de traction latérale du 23.6 a été mis à jour pour les prises mobiles/fiches mobiles mâles qui comportent des pièces frontales séparées;

   
6. le 24.1 qui traite de l'essai à la bille a été revu;

   
7. l'Article 27 qui traite de l'essai au fil incandescent a été mis à jour;

   
8. l'Annexe C qui traite des séquences d'essais a été revue;

   
9. l'Annexe E a été ajoutée afin de définir les essais et exigences supplémentaires pour les connecteurs destinés à être utilisés à des températures ambiantes supérieures à +35 °C.

Aparatne spojke za gospodinjstva in podobne splošne namene - 1. del: Splošne zahteve (IEC 60320-1:2021)

Ta del standarda lEC 60320 določa splošne zahteve za aparatne spojke za dva pola in dva pola z ozemljitvijo ter povezavo električnih naprav za gospodinjstva in podobne namene z napajalnim omrežjem.
Ta del standarda lEC 60320 se uporablja tudi za vhode/izhode aparatov, ki so vgrajeni v aparate oziroma jih ti vključujejo.
Nazivna napetost ne presega 250 V izmeničnega napajanja, nazivni tok pa ne presega 16 A.
Aparatne spojke, ki so v skladu s tem delom standarda lEC 60320, so primerne za običajno uporabo pri temperaturah okolja, ki običajno ne presegajo 40 °C, njihovo povprečje v 24 urah pa ne presega 35 °C. Spodnja meja temperature okolja je –5 °C.
Dodatek E vsebuje preskusne zahteve za redukcijo toka pribora, kadar se uporablja pri temperaturah okolja nad 35 °C do vključno 90 °C.
Aparatne spojke niso primerne za:
– uporabo namesto vtičnih naprav v skladu s standardom IEC 60884-1;
– uporabo namesto naprav za priključitev svetilk (DCL) v skladu s standardom IEC 61995 ali spojk za podporo svetilk (LSC).
OPOMBA: Zahteve za enosmerni tok so v obravnavi.

General Information

• Status: Published
• Public Enquiry End Date: 22-Nov-2020
• Publication Date: 03-Apr-2022
• ICS: 29.120.30 - Plugs, socket-outlets, couplers
• Technical Committee: EPR - Electrical accessories
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 21-Oct-2021
• Due Date: 26-Dec-2021
• Completion Date: 04-Apr-2022
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Ref Project: EN IEC 60320-1:2021 - Appliance couplers for household and similar general purposes - Part 1: General requirements

Relations

• Replaces: SIST EN 60320-1:2015/A1:2021 - Appliance couplers for household and similar general purposes - Part 1: General requirements (IEC 60320-1:2015/A1:2018)
• Effective Date: 12-Oct-2021
• Replaces: SIST EN 60320-1:2015 - Appliance couplers for household and similar general purposes - Part 1: General requirements (IEC 60320-1:2015)
• Effective Date: 12-Oct-2021
• Replaces: SIST EN 60320-1:2015/AC:2019 - Appliance couplers for household and similar general purposes - Part 1: General requirements (IEC 60320-1:2015/COR2:2019)
• Effective Date: 12-Oct-2021
• Replaces: SIST EN 60320-1:2015/AC:2016 - Appliance couplers for household and similar general purposes - Part 1: General requirements
• Effective Date: 12-Oct-2021
• Replaces: SIST EN 60320-1:2015/A1:2021 - Appliance couplers for household and similar general purposes - Part 1: General requirements (IEC 60320-1:2015/A1:2018)
• Effective Date: 07-Jun-2022
• Replaces: SIST EN 60320-1:2015/AC:2016 - Appliance couplers for household and similar general purposes - Part 1: General requirements
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 60320-1:2022
01-maj-2022
Nadomešča:
SIST EN 60320-1:2015
SIST EN 60320-1:2015/A1:2021
SIST EN 60320-1:2015/AC:2016
SIST EN 60320-1:2015/AC:2019
Aparatne spojke za gospodinjstva in podobne splošne namene - 1. del: Splošne
zahteve (IEC 60320-1:2021)
Appliance couplers for household and similar general purposes - Part 1: General
requirements (IEC 60320-1:2021)
Gerätesteckvorrichtungen für den Hausgebrauch und ähnliche allgemeine Zwecke –Teil
1: Allgemeine Anforderungen (IEC 60320-1:2021)
Connecteurs pour usages domestiques et usages généraux analogues - Partie 1:
Exigences générales (IEC 60320-1:2021)
Ta slovenski standard je istoveten z: EN IEC 60320-1:2021
ICS:
29.120.30 Vtiči, vtičnice, spojke Plugs, socket-outlets,
couplers
SIST EN IEC 60320-1:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60320-1:2022

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SIST EN IEC 60320-1:2022

EUROPEAN STANDARD EN IEC 60320-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2021
ICS 29.120.30 Supersedes EN 60320-1:2015 and all of its amendments
and corrigenda (if any)
English Version
Appliance couplers for household and similar general purposes -
Part 1: General requirements
(IEC 60320-1:2021)
Connecteurs pour usages domestiques et usages généraux Gerätesteckvorrichtungen für den Hausgebrauch und
analogues - Partie 1: Exigences générales ähnliche allgemeine Zwecke - Teil 1: Allgemeine
(IEC 60320-1:2021) Anforderungen
(IEC 60320-1:2021)
This European Standard was approved by CENELEC on 2021-08-31. 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.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists 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,
Turkey and the United Kingdom.



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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60320-1:2021 E

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SIST EN IEC 60320-1:2022
EN IEC 60320-1:2021 (E)
European foreword
The text of document 23G/464/FDIS, future edition 4 of IEC 60320-1, prepared by SC 23G "Appliance
couplers" of IEC/TC 23 "Electrical accessories" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 60320-1:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-05-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-08-31
document have to be withdrawn
This document supersedes EN 60320-1:2015 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Standardization Request given to CENELEC by the
European Commission and the European Free Trade Association, and supports essential
requirements of EU Directive(s) / Regulation(s).
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZZ, which is an
integral part of this document.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60320-1:2021 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60320-2-1 NOTE Harmonized as EN IEC 60320-2-1
IEC 60320-2-3 NOTE Harmonized as EN IEC 60320-2-3
IEC 60320-2-4 NOTE Harmonized as EN IEC 60320-2-4
IEC 60364-4-44 NOTE Harmonized as HD 60364-4-444
IEC 61140 NOTE Harmonized as EN 61140
ISO 1456 NOTE Harmonized as EN ISO 1456
ISO 2081 NOTE Harmonized as EN ISO 2081
2

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SIST EN IEC 60320-1:2022
EN IEC 60320-1:2021 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-31 - Environmental testing - Part 2-31: Tests - EN 60068-2-31 2008
Test Ec: Rough handling shocks, primarily
for equipment-type specimens
IEC 60068-2-60 - Environmental testing - Part 2-60: Tests - EN 60068-2-60 2015
Test Ke: Flowing mixed gas corrosion test
IEC 60068-2-75 - Environmental testing - Part 2-75: Tests - EN 60068-2-75 2014
Test Eh: Hammer tests
IEC 60112 2020 Method for the determination of the proof EN IEC 60112 2020
and the comparative tracking indices of
solid insulating materials
IEC 60227 series Polyvinyl chloride insulated cables of rated EN 50525 series
voltages up to and including 450/750 V -
IEC 60245 series Rubber insulated cables - Rated voltages EN 50525 series
up to and including 450/750 V
IEC 60320-3 2014 Appliance couplers for household and EN 60320-3 2014
similar general purposes - Part 3: Standard
+A1 2018 + A1 2021
sheets and gauges
IEC 60417 - Graphical symbols for use on equipment. - -
Index, survey and compilation of the single
sheets.
IEC 60664-1 2020 Insulation coordination for equipment within EN IEC 60664-1 2020
low-voltage systems - Part 1: Principles,
requirements and tests
IEC 60695-2-11 2014 Fire hazard testing - Part 2-11: Glowing/hot- EN 60695-2-11 2014
wire based test methods - Glow-wire
flammability test method for end-products
IEC 60695-10-2 2014 Fire hazard testing - Part 10-2: Abnormal EN 60695-10-2 2014
heat - Ball pressure test method
IEC 60730-2-11 2019 Automatic electrical controls for household EN IEC 60730-2-11 2020
and similar use - Part 2-11: Particular
requirements for energy regulators
3

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SIST EN IEC 60320-1:2022
EN IEC 60320-1:2021 (E)
Publication Year Title EN/HD Year
IEC 60999-1 1999 Connecting devices - Electrical copper EN 60999-1 2000
conductors - Safety requirements for screw-

type and screwless-type clamping units -
Part 1: General requirements and particular
requirements for clamping units for
conductors from 0,2 mm² up to 35 mm²
(included)
IEC 61058 series Switches for appliances EN 61058 series

4

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SIST EN IEC 60320-1:2022
EN IEC 60320-1:2021 (E)
Annex ZZ
(informative)

Relationship between this European standard and the safety
objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be
covered
This European standard has been prepared under a Commission’s standardisation request relating to
harmonised standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means
of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the
Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the
making available on the market of electrical equipment designed for use within certain voltage limits
[2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding safety objectives of
that Directive, and associated EFTA regulations.
Table ZZ.1 — Correspondence between this European standard and Annex I of Directive
2014/35/EU [2014 OJ L96]
Clause(s) / sub-clause(s)
Safety objectives of Directive
Remarks / Notes
2014/35/EU
of this EN
(1)(a) 8
(1)(b) 4, 9, 12, 20
(1)(c) See below detailed clauses
(2)(a) 4, 8.6, 10, 11, 12, 13, 14, 15, 20,
21, 22, 23, 26, 27
9 in combination with
EN 60320-3
(2)(b) 17, 19, 20, 21, 25, 27
(2)(c) N.A.
(2)(d) 10, 14, 15, 20, 22, 26
(3)(a) 22, 23
(3)(b) 14, 22, 24, 28
(3)(c) 21, 22
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.

5

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SIST EN IEC 60320-1:2022

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SIST EN IEC 60320-1:2022



IEC 60320-1

®


Edition 4.0 2021-07




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











Appliance couplers for household and similar general purposes –

Part 1: General requirements




Connecteurs pour usages domestiques et usages généraux analogues –

Partie 1: Exigences générales
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 29.120.30 ISBN 978-2-8322-1001-2




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

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SIST EN IEC 60320-1:2022
– 2 – IEC 60320-1:2021 © IEC 2021
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 General requirements . 13
5 General notes on tests . 14
5.1 General . 14
5.2 Test samples . 14
5.3 Routine tests. 14
6 Standard ratings . 15
7 Classification of appliance couplers . 15
8 Marking . 15
8.1 General . 15
8.2 Additional markings . 15
8.3 Appliance couplers for class II equipment . 16
8.4 Symbols or alphanumeric notations . 16
8.5 Legibility of markings . 16
8.6 Terminal markings and wiring instructions . 16
8.7 Durability . 17
8.8 Test and inspection . 17
9 Dimensions and compatibility . 17
9.1 General . 17
9.2 Single‐pole connections . 17
9.3 Compatibility . 17
9.4 Dimensions for standardized appliance couplers . 18
9.5 Dimensions for non-standardized appliance couplers . 18
10 Protection against electric shock . 19
10.1 Accessibility of live parts . 19
10.2 Protection against single pole connection . 19
10.3 Protection against access to live parts . 19
10.4 External parts . 19
10.5 Shrouds . 19
11 Provision for earthing . 19
12 Terminals and terminations . 20
12.1 General . 20
12.2 Rewirable appliance couplers . 20
12.3 Non‐rewirable appliance couplers . 20
13 Construction . 20
13.1 Risk of accidental contact . 20
13.2 Contact positions . 20
13.3 Parts covering live parts . 21
13.4 Pin construction . 21
13.4.1 Prevention of rotation . 21
13.4.2 Pin retention . 21
13.4.3 Non‐solid pins. 22

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SIST EN IEC 60320-1:2022
IEC 60320-1:2021 © IEC 2021 – 3 –
13.4.4 Pins for appliance couplers for higher ambient temperatures up to
+90 °C . 22
13.5 Contact pressure . 22
13.6 Enclosure . 23
13.6.1 General . 23
13.6.2 Rewirable connectors and rewirable plug connectors . 23
13.6.3 Non-rewirable connectors and non-rewirable plug connectors . 23
13.7 Earth connection . 24
13.8 Location of terminals and terminations . 24
13.8.1 General . 24
13.8.2 Free wire test for rewirable accessories . 24
13.8.3 Free wire test for non-rewirable non-moulded-on accessories . 24
13.8.4 Free wire verification for non-rewirable moulded-on accessories . 25
13.9 Connectors/plug connectors without earthing contact . 25
13.10 Fuses, relays, thermostats, thermal cut-outs and switches . 25
14 Moisture resistance . 25
15 Insulation resistance and electric strength . 26
15.1 General . 26
15.2 Insulation resistance . 28
15.3 Dielectric strength . 28
16 Forces necessary to insert and to withdraw the connector/appliance outlet . 29
16.1 General . 29
16.2 Verification of the maximum withdrawal force . 30
16.3 Verification of the minimum withdrawal force . 31
17 Operation of contacts . 32
18 Resistance to heating of appliance couplers for hot conditions or very hot
conditions . 32
18.1 General . 32
18.2 Heating test for connectors/plug connectors . 33
18.3 Heating test for appliance inlets/appliance outlets . 34
19 Breaking capacity . 34
20 Normal operation . 36
21 Temperature rise . 36
22 Cords and their connection . 37
22.1 Cords for non-rewirable connectors/plug connectors . 37
22.2 Cord anchorage . 38
22.2.1 General . 38
22.2.2 Additional requirements for rewirable connectors and rewirable plug
connectors . 39
22.2.3 Pull test for cable anchorage . 39
22.3 Flexing test . 41
23 Mechanical strength . 43
23.1 General . 43
23.2 Free fall test . 44
23.3 Lateral pull test for contacts . 44
23.4 Impact test . 46
23.5 Deformation test . 46
23.6 Pull tests for connectors/plug connectors with a separate front part . 47

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SIST EN IEC 60320-1:2022
– 4 – IEC 60320-1:2021 © IEC 2021
23.6.1 General . 47
23.6.2 Straight pull test . 47
23.6.3 Lateral pull test . 47
24 Resistance to heat and ageing. 48
24.1 Resistance to heat . 48
24.2 Resistance to ageing . 48
24.2.1 General . 48
24.2.2 Ageing test for elastomeric materials . 49
24.2.3 Ageing test for thermoplastic materials . 49
24.2.4 Ageing test assessment . 49
25 Screws, current-carrying parts and connections . 49
25.1 General . 49
25.2 Electrical connections . 50
25.3 Securement of connections . 51
25.4 Metallic parts . 51
26 Clearances, creepage distances and solid insulation . 51
26.1 General . 51
26.2 Clearances . 52
26.2.1 Dimensioning . 52
26.2.2 Minimum values for clearances . 52
26.3 Creepage distances . 53
26.3.1 Dimensioning . 53
26.3.2 Minimum creepage distances . 53
26.4 Solid insulation . 54
27 Resistance of insulating material to heat, fire and tracking . 55
27.1 Resistance to heat and fire . 55
27.1.1 General . 55
27.1.2 Objective of the test . 55
27.1.3 General description of the test . 55
27.1.4 Degree of severity . 55
27.1.5 Evaluation of test results . 55
27.2 Resistance to tracking . 56
28 Resistance to rusting . 56
29 Electromagnetic compatibility (EMC) requirements . 56
29.1 Immunity – Accessories not incorporating electronic components . 56
29.2 Emission – Accessories not incorporating electronic components . 57
Annex A (normative) Proof tracking test . 58
Annex B (normative) Routine tests for factory wired appliance couplers related to
safety. 59
B.1 General . 59
B.2 Polarized systems: Line (L) and neutral (N) – Correct connection . 59
B.3 Earth (PE) continuity . 60
B.4 Short-circuit/wrong connection and reduction in creepage distance
and clearance . 60
B.4.1 Accessible surface safety check . 60
B.4.2 Short-circuit/wrong connection . 60
Annex C (normative) Test schedule . 61
Annex D (informative) Comparison of typical conductor cross-sectional areas . 63

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SIST EN IEC 60320-1:2022
IEC 60320-1:2021 © IEC 2021 – 5 –
Annex E (normative) Additional tests and requirements for appliance couplers
intended to be used in ambient temperatures above +35 °C up to and including +90 °C. 64
E.1 General . 64
E.2 General requirements on tests . 64
E.2.1 General . 64
E.2.2 Test setup . 64
E.2.3 Conditions of temperature measurement. 64
E.2.4 Method of measurement . 65
E.3 Markings . 65
E.4 Determination of t and the rated and derated current in relation to the
a
ambient temperature . 65
E.4.1 Determin
...

SLOVENSKI STANDARD
oSIST prEN IEC 60320-1:2020
01-november-2020
Aparatne spojke za gospodinjstva in podobne splošne namene - 1. del: Splošne
zahteve
Appliance couplers for household and similar general purposes - Part 1: General
requirements
Gerätesteckvorrichtungen für den Hausgebrauch und ähnliche allgemeine Zwecke –Teil
1: Allgemeine Anforderungen
Connecteurs pour usages domestiques et usages généraux analogues - Partie 1:
Exigences générales
Ta slovenski standard je istoveten z: prEN IEC 60320-1:2020
ICS:
29.120.30 Vtiči, vtičnice, spojke Plugs, socket-outlets,
couplers
oSIST prEN IEC 60320-1:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 60320-1:2020

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oSIST prEN IEC 60320-1:2020
23G/447/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60320-1 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2020-09-04 2020-11-27
SUPERSEDES DOCUMENTS:
23G/440/CD, 23G/444A/CC

IEC SC 23G : APPLIANCE COUPLERS
SECRETARIAT: SECRETARY:
Sweden Mr Ingvar Eriksson
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

SC 34D,SC 48B,TC 61,TC 108
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

TITLE:
Appliance couplers for household and similar general purposes - Part 1: General requirements

PROPOSED STABILITY DATE: 2020

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oSIST prEN IEC 60320-1:2020
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1
2 CONTENTS
3 CONTENTS . 2
4 FOREWORD . 6
5 1 Scope . 8
6 2 Normative references . 8
7 3 Terms and definitions . 9
8 4 General requirements . 12
9 5 General notes on tests . 12
10 5.1 General . 12
11 5.2 Test samples . 12
12 5.3 Failures . 12
13 5.4 Routine tests. 13
14 6 Standard ratings . 13
15 7 Classification of appliance couplers . 13
16 8 Marking . 13
17 8.1 General . 13
18 8.2 Additional markings . 14
19 8.3 Appliance couplers for class II equipment . 14
20 8.4 Symbols or alphanumeric notations . 14
21 8.5 Legibility of markings . 14
22 8.6 Terminal markings and wiring instructions . 14
23 8.7 Durability . 15
24 8.8 Test and inspection . 15
25 9 Dimensions and compatibility . 15
26 9.1 General . 15
27 9.2 Single‐pole connections . 15
28 9.3 Compatibility . 15
29 9.4 Dimensions for standardized appliance couplers . 16
30 9.5 Dimensions for non-standardized appliance couplers . 16
31 10 Protection against electric shock . 16
32 10.1 Accessibility of live parts . 16
33 10.2 Protection against single pole connection . 17
34 10.3 Protection against access to live parts . 17
35 10.4 External parts . 17
36 10.5 Shrouds . 17
37 11 Provision for earthing . 17
38 12 Terminals and terminations . 17
39 12.1 General . 17
40 12.2 Rewirable appliance couplers . 17
41 12.3 Non‐rewirable appliance couplers . 18
42 13 Construction . 18
43 13.1 Risk of accidental contact . 18
44 13.2 Contact positions . 18
45 13.3 Parts covering live parts . 18
46 13.4 Pin construction . 18
47 13.4.1 Prevention of rotation . 18
48 13.4.2 Pin retention . 19
49 13.4.3 Non‐solid pins. 19

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50 13.4.4 Pins for appliance couplers for higher ambient temperatures up to + 90
51 °C . 20
52 13.5 Contact pressure . 20
53 13.6 Enclosure . 20
54 13.6.1 General . 20
55 13.6.2 Rewirable connectors/plug connectors . 20
56 13.6.3 Non-rewirable connectors/plug connectors . 21
57 13.7 Earth connection . 21
58 13.8 Location of terminals and terminations . 21
59 13.8.1 General . 21
60 13.8.2 Free wire test for rewirable accessories . 22
61 13.8.3 Free wire test for non-rewirable non-moulded-on accessories . 22
62 13.8.4 Free wire verification for non-rewirable moulded-on accessories . 22
63 13.9 Connectors/plug connectors without earthing contact . 23
64 13.10 Fuses, relays, thermostats, thermal cut-outs and switches . 23
65 14 Moisture resistance . 23
66 15 Insulation resistance and electric strength . 24
67 15.1 General . 24
68 15.2 Insulation resistance . 25
69 15.3 Dielectric strength . 26
70 16 Forces necessary to insert and to withdraw the connector/appliance outlet . 27
71 16.1 General . 27
72 16.2 Verification of the maximum withdrawal force . 27
73 16.3 Verification of the minimum withdrawal force . 29
74 17 Operation of contacts . 29
75 18 Resistance to heating of appliance couplers for hot conditions or very hot
76 conditions . 30
77 18.1 General . 30
78 18.2 Heating test for connectors/plug connectors . 30
79 18.3 Heating test for appliance inlets/appliance outlets . 31
80 19 Breaking capacity . 31
81 20 Normal operation . 33
82 21 Temperature rise . 33
83 22 Cords and their connection . 34
84 22.1 Cords for non-rewirable connectors/plug connectors . 34
85 22.2 Cord anchorage . 35
86 22.2.1 General . 35
87 22.2.2 Additional requirements for rewirable connectors/plug connectors . 35
88 22.2.3 Pull test for cable anchorage . 36
89 22.3 Flexing test . 38
90 23 Mechanical strength . 41
91 23.1 General . 41
92 23.2 Free fall test . 41
93 23.3 Lateral pull test for contacts . 42
94 23.4 Impact test . 44
95 23.5 Deformation test . 44
96 23.6 Pull tests for connectors/plug connectors with a separate front part . 45
97 23.6.1 Straight pull test . 45
98 23.6.2 Lateral pull test . 45
99 24 Resistance to heat and ageing. 45
100 24.1 Resistance to heat . 45

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101 24.2 Resistance to ageing . 46
102 24.2.1 General . 46
103 24.2.2 Ageing test for elastomeric materials . 46
104 24.2.3 Ageing test for thermoplastic materials . 46
105 24.2.4 Ageing test assessment . 47
106 25 Screws, current-carrying parts and connections . 47
107 25.1 General . 47
108 25.2 Electrical connections . 48
109 25.3 Securement of connections . 48
110 25.4 Metallic parts . 48
111 26 Clearances, creepage distances and solid insulation . 49
112 26.1 General . 49
113 26.2 Clearances . 50
114 26.2.1 Dimensioning . 50
115 26.2.2 Minimum values for clearances . 50
116 26.3 Creepage distances . 51
117 26.3.1 Dimensioning . 51
118 26.3.2 Minimum creepage distances . 51
119 26.4 Solid insulation . 52
120 27 Resistance of insulating material to heat, fire and tracking . 52
121 27.1 Resistance to heat and fire . 52
122 27.1.1 General . 52
123 27.1.2 Object of the test . 53
124 27.1.3 General description of the test . 53
125 27.1.4 Degree of severity . 53
126 27.1.5 Evaluation of test results . 53
127 27.2 Resistance to tracking . 53
128 28 Resistance to rusting . 53
129 29 Electromagnetic compatibility (EMC) requirements . 54
130 29.1 Immunity – Accessories not incorporating electronic components . 54
131 29.2 Emission – Accessories not incorporating electronic components . 54
132 Annex A (normative) Proof tracking test . 55
133 Annex B (normative) Routine tests for factory wired appliance couplers related to
134 safety . 56
135 B.1 General . 56
136 B.2 Polarized systems: Line (L) and neutral (N) – Correct connection . 56
137 B.3 Earth (PE) continuity . 57
138 B.4 Short-circuit/wrong connection and reduction in creepage distance
139 and clearance . 57
140 B.4.1 Accessible surface safety check . 57
141 B.4.2 Short-circuit/wrong connection . 57
142 Annex C (normative) Test schedule . 58
143 Annex D (informative) Comparison of typical conductor cross-sectional areas . 59
144 Annex E (normative)  Additional tests and requirements for appliance couplers
145 intended to be used in ambient temperatures above +35 °C up to and including
146 +90 °C . 60
147 E.1 General . 60
148 E.2 General requirements on tests . 60
149 E.2.1 Test setup . 60
150 E.2.2 Conditions of temperature measurement. 60
151 E.2.3 Method of measurement . 60
152 E.3 Markings . 61

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153 E.4 Determination of t and the rated and derated current in relation to the
a
154 ambient temperature . 61
155 E.4.1 Determination of the maximum ambient temperature (t ) for operation of
a
156 the accessory at the rated current. 61
157 E.4.2 Determination of the derated operating currents for ambient
158 temperatures above t . 61
a
159 E.5 Test to evaluate the long-term behavior of the appliance couplers in ambient
160 temperatures above +35 °C up to and including +90 °C . 62
161 E.5.1 Resistance to heat . 62
162 E.5.2 Resistance to ageing . 63
163 E.5.3 Resistance to tracking . 64
164 E.6 Cords and their connections . 64
165 Bibliography . 65
166
167 Figure 1 – Intended use of appliance couplers . 9
168 Figure 2 – Device for testing non-solid pins . 20
169 Figure 3 – Apparatus for checking the withdrawal force . 28
170 Figure 4 – Gauge for verification of the minimum withdrawal force . 29
171 Figure 5 - Example of an apparatus for heating test (see 18.2) . 31
172 Figure 6 – Circuit diagram for breaking capacity and normal operation tests . 32
173 Figure 7 – Apparatus for testing the cord anchorage . 36
174 Figure 8 – Apparatus for the flexing test . 39
175 Figure 9 – Example of apparatus for pulling test . 43
176 Figure E1 - Schematic drawing of a derating curve with an example of a derated
177 current I at the operating ambient temperature t . 62
d d
178
179 Table 1 – Position of contacts . 18
180 Table 2 – Maximum diameters of the cords . 25
181 Table 3 – Minimum insulation resistance . 26
182 Table 4 – Dielectric strength . 26
183 Table 5 – Maximum and minimum withdrawal forces . 27
184 Table 6 – Ratings for the tests of Clause 19 . 32
185 Table 7 – Ratings for the tests of Clause 20 . 33
186 Table 8 – Cords and conductors for the tests of Clause 21 . 34
187 Table 9 – Type and nominal cross-sectional area of cords . 35
188 Table 10 – Types of cord for the rewirable connector/plug connector test . 37
189 Table 11 - Applicable tests . 41
190 Table 12 – Values for the lateral pulls applied . 44
191 Table 14 – Torque applied for the tightening and loosening test . 48
192 Table 15 – Rated impulse withstand voltage for appliance couplers energized directly
193 from the low voltage mains . 50
194 Table 16 – Minimum clearances for basic insulation. 51
195 Table 17 – Minimum creepage distances for basic and functional insulation . 52
196 Table B.1 – Test overview . 56
197 Table C.1 – Test schedule . 58
198 Table D.1 – Comparison of conductor sizes . 59
199
200

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201 INTERNATIONAL ELECTROTECHNICAL COMMISSION
202 ____________
203
204 APPLIANCE COUPLERS FOR HOUSEHOLD
205 AND SIMILAR GENERAL PURPOSES –
206
207 Part 1: General requirements
208
209 FOREWORD
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