IEC 60320-2-4:2005

IEC 60320-2-4 ®
Edition 1.1 2009-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Appliance couplers for household and similar general purposes –
Part 2-4: Couplers dependent on appliance weight for engagement

Connecteurs pour usages domestiques et usages généraux analogues –
Partie 2-4: Connecteurs à connexion par gravité

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IEC 60320-2-4 ®
Edition 1.1 2009-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Appliance couplers for household and similar general purposes –
Part 2-4: Couplers dependent on appliance weight for engagement

Connecteurs pour usages domestiques et usages généraux analogues –
Partie 2-4: Connecteurs à connexion par gravité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CM
CODE PRIX
ICS 29.120.20 ISBN 978-2-88910-123-8
– 2 – 60320-2-4 © IEC:2005+A1:2009

CONTENTS
FOREWORD.3

1 Scope.5

2 Normative references.5

3 Definitions .6

4 General requirements .7

5 General notes on tests.7

6 Standard ratings .7

7 Classification .8
8 Marking .9
9 Dimensions and compatibility.10
10 Protection against electric shock.11
11 Provision for earthing.11
12 Terminals and terminations.11
13 Construction .12
14 Moisture resistance.13
15 Insulation resistance and electric strength.14
16 Forces necessary to insert and withdraw the connector .15
17 Operation of contacts.15
18 Resistance to heating of appliance couplers for hot conditions or very hot conditions.15
19 Breaking capacity .16
20 Normal operation .16
21 Temperature rise .17
22 Cords and their connection .18
23 Mechanical strength.19
24 Resistance to heat and ageing .19
25 Screws, current-carrying parts and connections .20
26 Creepage distances, clearances and distances through insulation .20
27 Resistance of insulating material to heat, fire and tracking .25
28 Resistance to rusting .26
29 Electromagnetic compatibility (EMC) requirements .26

Annex AA (normative) Proof tracking test .28
Annex BB (normative) Needle flame test .29
Annex CC (normative) Apparatus for the test of Subclause 14.2 .30

Figure 101 – Examples of clearances .27
Figure CC.1 – Apparatus for the test of Subclause 14.2.30

Table 101 – Test voltages .14
Table 102 – Rated impulse voltage.21
Table 103 – Minimum clearances .21
Table 104 – Minimum creepage distances for basic insulation .23

60320-2-4 © IEC:2005+A1:2009 – 3 –

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
APPLIANCE COUPLERS FOR HOUSEHOLD

AND SIMILAR GENERAL PURPOSES –

Part 2-4: Couplers dependent on appliance weight

for engagement
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
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60320-2-4 has been prepared by subcommittee 23G: Appliance
couplers, of IEC technical committee 23: Electrical accessories
This consolidated version of IEC 60320-2-4 consists of the first edition (2005) [documents
23G/251/FDIS and 23G/252/RVD] and its amendment 1 (2009) [documents 23G/290/CDV and
23G/291/RVC].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.
It bears the edition number 1.1.
A vertical line in the margin shows where the base publication has been modified by
amendment 1.
– 4 – 60320-2-4 © IEC:2005+A1:2009

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

IEC 60320 consists of th
...