MT 1 - TC 23/SC 23G/MT 1

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.

lEC 60320-3:2014 sets the dimensions for appliance couplers for two poles and two poles with earth contact:
- for the connection of electrical devices for household and similar onto the mains supply and
- for the interconnection of the electrical supply to appliance or equipment
- and dimensions for gauges.
This publication is to be read in conjunction with IEC 60320-1:2007.

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.

IEC 60799:2018 is also available as IEC 60799:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60799:2018 specifies requirements for cord sets and interconnection cord sets for household and similar general purpose equipment. It does not apply to cord sets for industrial purposes (with plugs and connectors according to IEC 60309) nor to cord extension sets. This third edition cancels and replaces the second edition published in 1998. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- alignment with IEC 60320-1:2015;
- extension to include appliance couplers in accordance with IEC 60320-2-3:- (Under preparation. Stage at the time of publication: IEC/FDIS 60320-2-3:2018)

IEC 60320-2-1:2018 is applicable to special purpose appliance couplers for household sewing machines. These sewing machine couplers are for alternating current only and have a rated voltage not exceeding 250 V and a rated current not exceeding 2,5 A.
This third edition cancels and replaces the second edition published in 2000. 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.
This Part 2-1 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).

lEC 60320-1:2015 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 part of lEC 60320 is also valid for appliance inlets/appliance outlets integrated or incorporated in appliances. The rated voltage does not exceed 250 V (a.c.) and the rated current does not exceed 16 A. This third edition cancels and replaces the second edition published in 2001 and Amendment 1:2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Standard sheets moved from IEC 60320-1 to IEC 60320-3.
b) Clarification of requirements for non-standardized appliance couplers.
This bilingual version (2016-11) corresponds to the monolingual English version, published in 2015-06. The French version of this standard has not been voted upon.
The contents of the corrigenda of January 2016 and May 2019 have been included in this copy.