IEC 60320-1:2021
(Main)Appliance couplers for household and similar general purposes - Part 1: General requirements
Appliance couplers for household and similar general purposes - Part 1: General requirements
lEC 60320-1:2021 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.
This fourth edition cancels and replaces the third edition published in 2015 and Amendment 1:2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
introduction of necessary tolerances throughout this document;
the heating test from edition 2 is reintroduced in 18.2;
temperature rise added for plug connectors in Clause 21;
change for better readability in 23.3;
updated lateral pull test in 23.6 for connectors/plug connectors with separate front parts;
revision of 24.1 for ball pressure test;
Clause 27 for glow wire test is updated;
revision of Annex C for test sequences;
additional Annex E for additional tests and requirements for appliance couplers intended to be used in ambient temperatures above +35 °C.
Connecteurs pour usages domestiques et usages généraux analogues - Partie 1: Exigences générales
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:
les tolérances nécessaires ont été ajoutées dans l'ensemble du présent document;
l'essai d'échauffement de l'édition 2 a été rétabli en 18.2;
l'échauffement a été ajouté à l'Article 21 pour les fiches mobiles mâles;
le 23.3 a été réorganisé pour des raisons de lisibilité;
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;
le 24.1 qui traite de l'essai à la bille a été revu;
l'Article 27 qui traite de l'essai au fil incandescent a été mis à jour;
l'Annexe C qui traite des séquences d'essais a été revue;
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.
General Information
Relations
Buy Standard
Standards Content (Sample)
IEC 60320-1 ®
Edition 4.0 2021-07
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Appliance couplers for household and similar general purposes –
Part 1: General requirements
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a
Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 60320-1 ®
Edition 4.0 2021-07
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Appliance couplers for household and similar general purposes –
Part 1: General requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.30 ISBN 978-2-8322-4048-9
– 2 – IEC 60320-1:2021 CMV © IEC 2021
CONTENTS
FOREWORD .7
1 Scope .9
2 Normative references .9
3 Terms and definitions . 10
4 General requirements . 14
5 General notes on tests . 14
5.1 General . 14
5.2 Test samples . 14
5.3 Failures .
5.3 Routine tests . 15
6 Standard ratings . 15
7 Classification of appliance couplers . 15
8 Marking . 16
8.1 General . 16
8.2 Additional markings . 16
8.3 Appliance couplers for class II equipment . 16
8.4 Symbols or alphanumeric notations . 16
8.5 Legibility of markings . 17
8.6 Terminal markings and wiring instructions . 17
8.7 Durability . 17
8.8 Test and inspection . 17
9 Dimensions and compatibility . 18
9.1 General . 18
9.2 Single‐pole connections . 18
9.3 Compatibility . 18
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 . 20
10.5 Shrouds . 20
11 Provision for earthing . 20
12 Terminals and terminations . 20
12.1 General . 20
12.2 Rewirable appliance couplers . 20
12.3 Non‐rewirable appliance couplers. 20
13 Construction . 21
13.1 Risk of accidental contact . 21
13.2 Contact positions . 21
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
13.4.4 Pins for appliance couplers for higher ambient temperatures up to +90 °C. 23
13.5 Contact pressure . 23
13.6 Enclosure . 23
13.6.1 General . 23
13.6.2 Rewirable connectors and rewirable plug connectors . 24
13.6.3 Non-rewirable connectors and non-rewirable plug connectors . 24
13.7 Earth connection . 24
13.8 Location of terminals and terminations . 25
13.8.1 General . 25
13.8.2 Free wire test for rewirable accessories . 25
13.8.3 Free wire test for non-rewirable non-moulded-on accessories . 25
13.8.4 Free wire verification for non-rewirable moulded-on accessories . 26
13.9 Connectors/plug connectors without earthing contact . 26
13.10 Fuses, relays, thermostats, thermal cut-outs and switches . 26
14 Moisture resistance . 26
15 Insulation resistance and electric strength . 27
15.1 General . 27
15.2 Insulation resistance . 28
15.3 Dielectric strength. 29
16 Forces necessary to insert and to withdraw the connector/appliance outlet . 30
16.1 General . 30
16.2 Verification of the maximum withdrawal force . 30
16.3 Verification of the minimum withdrawal force . 32
17 Operation of contacts . 33
18 Resistance to heating of appliance couplers for hot conditions or very hot conditions . 33
18.1 General . 33
18.2 Heating test for connectors/plug connectors . 33
18.3 Heating test for appliance inlets/appliance outlets . 34
19 Breaking capacity. 35
20 Normal operation . 36
21 Temperature rise. 37
22 Cords and their connection . 38
22.1 Cords for non-rewirable connectors/plug connectors . 38
22.2 Cord anchorage . 39
22.2.1 General . 39
22.2.2 Additional requirements for rewirable connectors and rewirable plug
connectors . 40
22.2.3 Pull test for cable anchorage. 40
22.3 Flexing test . 42
23 Mechanical strength . 44
23.1 General . 44
23.2 Free fall test . 45
23.3 Lateral pull test for contacts . 45
23.4 Impact test . 48
23.5 Deformation test . 48
23.6 Torque and Pull tests for connectors/plug connectors with a separate front part . 49
23.6.1 General . 49
– 4 – IEC 60320-1:2021 CMV © IEC 2021
23.6.2 Straight pull test . 49
23.6.3 Lateral pull test . 49
24 Resistance to heat and ageing. 50
24.1 Resistance to heat . 50
24.2 Resist
...
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
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Recherche de publications IEC - IEC online collection - oc.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur adapté à vos besoins.
les projets et les publications remplacées ou retirées.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au
Restez informé sur les nouvelles publications IEC. Just
monde, avec plus de 22 000 articles terminologiques en
Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
16 langues additionnelles. Egalement appelé Vocabulaire
Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
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
– 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
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
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.