IEC 60309-4:2006+AMD1:2012 CSV

Plugs, socket-outlets and couplers for industrial purposes - Part 4: Switched socket-outlets and connectors with or without interlock

IEC 60309-4:2006+A1:2012 applies to self-contained products that combine within a single enclosure, a socket-outlet or connector according to IEC 60309-1 or IEC 60309-2 and a switching device, with a rated operating voltage not exceeding 1 000 V d.c. or a.c. and 500 Hz, and a rated current not exceeding 800 A, primarily intended for industrial use, either indoors or outdoors. These accessories are intended to be installed by instructed persons (Amendment 1:2001 of IEC 60050-195:1998, 195-04-02) or skilled persons (Amendment 1:2001 of IEC 60050-195:1998, 195-04-01) only. These products may incorporate an interlock and/or protective devices. It bears the edition number 1.1. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. A vertical line in the margin shows where the base publication has been modified by amendment 1. Additions and deletions are displayed in red, with deletions being struck through. This consolidated version consists of the first edition (2006) and its amendment 1 (2012). Therefore, no need to order amendment in addition to this publication.
This publication is to be read in conjunction with IEC 60309-1:1999 and IEC 60309-2:1999.

Prises de courant pour usages industriels - Partie 4: Prises de courant et prises mobiles avec interrupteur, avec ou sans dispositif de verrouillage

La CEI 60309-4:2006+A1:2012 s'applique aux ensembles indépendants qui combinent, dans une même enveloppe, un socle de prise de courant ou un connecteur suivant la CEI 60309-1 ou la CEI 60309-2, et un dispositif d'interruption, de tension nominale d'emploi ne dépassant pas 1 000 V en courant continu ou en courant alternatif, de fréquence ne dépassant pas 500 Hz en courant alternatif, et de courant nominal ne dépassant pas 800 A, destinés essentiellement aux usages industriels, à l'intérieur ou à l'extérieur des bâtiments. Ces appareils sont destinés à être installés seulement par des personnes averties (Amendement 1:2001 de la CEI 60050:1998, 195-04-02) ou qualifiées (Amendement 1:2001 de la CEI 60050:1998, IEV 195-04-01). Ces produits peuvent inclure un dispositif de verrouillage et/ou des dispositifs de protection. Elle porte le numéro d'édition 1.1. Le contenu technique de cette version consolidée est donc identique à celui de l'édition de base et à son amendement; cette version a été préparée par commodité pour l'utilisateur. Une ligne verticale dans la marge indique où la publication de base a été modifiée par l'amendement 1. Les ajouts et les suppressions apparaissent en rouge, les suppressions sont barrées.  Cette version consolidée comprend la première édition (2006) et son amendement 1 (2012). Il n'est donc pas nécessaire de commander l'amendement avec cette publication.
Cette publication doit être lue conjointement avec la CEI 60309-1:1999 et la CEI 60309-2:1999.

General Information

• Status: Published
• Publication Date: 26-Apr-2012
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.120.30 - Plugs, socket-outlets, couplers
• Technical Committee: SC 23H - Plugs, Socket-outlets and Couplers for industrial and similar applications, and for Electric Vehicles
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 18-Jun-2021

Standards Content (Sample)

IEC 60309-4
®

Edition 1.1 2012-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Plugs, socket-outlets and couplers for industrial purposes –
Part 4: Switched socket-outlets and connectors with or without interlock

Prises de courant pour usages industriels –
Partie 4: Prises de courant et prises mobiles avec interrupteur, avec ou sans
dispositif de verrouillage

IEC 60309-4:2006+A1:2012

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2012 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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---------------------- Page: 2 ----------------------
IEC 60309-4

®


Edition 1.1 2012-04




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Plugs, socket-outlets and couplers for industrial purposes –

Part 4: Switched socket-outlets and connectors with or without interlock




Prises de courant pour usages industriels –

Partie 4: Prises de courant et prises mobiles avec interrupteur, avec ou sans

dispositif de verrouillage















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX CH


ICS 29.120.30 ISBN 978-2-88912-052-9



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 – 60309-4  IEC:2006+A1:2012
CONTENTS
FOREWORD . 3

1 Scope . 5
2 Definitions . 5
3 Normative references . 7
4 General . 7
5 Standard ratings . 8
6 Classification . 8
7 Marking . 9
8 Dimensions . 11
9 Protection against electric shock . 11
10 Provision for earthing . 12
11 Terminals . 12
12 Interlocks, switches and their components . 12
13 Resistance to ageing of rubber and thermoplastic material . 17
14 General construction . 17
15 Construction of socket-outlets . 17
16 Construction of plugs and connectors . 17
17 Construction of appliance inlets . 17
18 Degrees of protection . 17
19 Insulation resistance and dielectric strength . 17
20 Breaking capacity . 18
21 Normal operation . 18
22 Temperature rise . 18
23 Flexible cable and their connection . 20
24 Mechanical strength . 20
25 Screws, current-carrying parts and connections . 21
26 Creepage distances, clearances and distances through sealing compound . 21
27 Resistance to heat, fire and tracking . 21
28 Corrosion and resistance to rusting . 21
29 Conditional short-circuit current withstand test . 21

Figure 101 – Actuator applied force F . 22
Figure 102 – Example of apparatus for checking the withdrawal force . 22

Table 101 − Withdrawal force with respect to ratings . 14
Table 8 . 19
Table 102 – Actuator test force F . 20

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60309-4  IEC:2006+A1:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

PLUGS, SOCKET-OUTLETS AND COUPLERS
FOR INDUSTRIAL PURPOSES –

Part 4: Switched socket-outlets and connectors
with or without interlock



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,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
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
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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.

This consolidated version of IEC 60309-4 consists of the first edition (2006) [documents
23H/189/FDIS and 23H/192/RVD] and its amendment 1 (2012) [documents 23H/276/FDIS
and 23H/281/RVD]. It bears the edition number 1.1.
The technical content is therefore identical to the base edition and its amendment and
has been prepared for user convenience. A vertical line in the margin shows where the
base publication has been modified by amendment 1. Additions and deletions are
displayed in red, with deletions being struck through.

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– 4 – 60309-4  IEC:2006+A1:2012
International Standard IEC 60309-4 has been prepared by subcommittee 23H: Plugs and
socket-outlets for industrial purposes, of IEC technical committee 23: Electrical accessories.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This standard is to be read in conjunction with IEC 60309-1 (1999) and IEC 60309-2 (1999).
Part 1 comprises clauses of a general character and the subsequent parts of the series deal
with particular types.
The clauses of the subsequent parts supplement or modify the corresponding clauses in Part 1.
Where the text of subsequent parts indicates an "addition" to or a "replacement" of the relevant
requirement, test specification or explanation of Part 1, these changes are made to the relevant
text of Part 1, which then becomes part of the standard. Where no change is necessary, the
words "This clause of Part 1 is applicable" are used.
Clauses, subclauses, figures, tables and notes which are additional to those in Part 1 are
numbered starting from 101.
The IEC 60309 series, under the general title Plugs, socket-outlets and couplers for industrial
purposes comprises the following parts:
Part 1: General requirements
Part 2: Dimensional interchangeability requirements for pin and contact-tube accessories
Part 4: Switched socket-outlets and connectors with or without interlock
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

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60309-4  IEC:2006+A1:2012 – 5 –
PLUGS, SOCKET-OUTLETS AND COUPLERS
FOR INDUSTRIAL PURPOSES –

Part 4: Switched socket-outlets and connectors
with or without interlock


1 Scope
This clause of Part 1 or Part 2 is applicable except as follows:
Replacement of the first paragraph by the following text:
This part of IEC 60309 applies to self-contained products that combine within a single
enclosure, a socket-outlet or connector according to IEC 60309-1 or IEC 60309-2 and a
switching device, with a rated operating voltage not exceeding 690 1 000 V d.c. or a.c. and
500 Hz , and a rated current not exceeding 250 800 A, primarily intended for industrial use,
either indoors or outdoors.
These accessories are intended to be installed by instructed persons (Amendment 1:2001 of
IEC 60050-195:1998, 195-04-02) or skilled persons (Amendment 1:2001 of
IEC 60050-195:1998, 195-04-01) only.
These products may incorporate an interlock and/or protective devices.
2 Definitions
This clause of Part 1 or Part 2 is applicable, except as follows:
Deletion of definitions 2.6 to 2.9.
Addition:
2.101
switched socket-outlet or connector
accessory containing in a single enclosure a switching device and a socket-outlet or
connector, intended to be used in combination. It can be either interlocked or non-interlocked
2.102
interlocked socket-outlet or connector
socket-outlet or connector associated with an interlock
2.103
switching device
device designated to make or break the current in one or more electric circuits
[IEV 441-14-01]
2.103.1
mechanical switching device
switching device designed to close and open one or more electric circuits by means of
separable contacts
[IEV 441-14-02]

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– 6 – 60309-4  IEC:2006+A1:2012
2.103.1.1
switch (mechanical)
mechanical switching device capable of making, carrying and breaking currents under normal
circuit conditions, which may include specified operating overload conditions and also
carrying, for a specified time, currents under specified abnormal circuit conditions such as
those of short-circuit
[IEV 441-14-10]
NOTE A switch may be capable of making, but not breaking short-circuit currents.
2.103.1.1.1
switch-disconnector
switch, which in the open position complies with the requirements specified for the isolating
function
[IEV 441-14-12, modified]
NOTE This definition differs from IEV 441-14-05 by referring to isolating function instead of the requirements
specified for a disconnector.
2.103.1.2
contactor
mechanical switching device having only one position of rest, operated otherwise than by
hand, capable of making, carrying and breaking currents under normal circuit conditions,
including operating overload conditions
[IEV 441-14-33]
2.103.2
associated switching device
separate switching device which can be replaced independently
2.103.3
integral switching device
switching device constructed as a part of a socket-outlet or connector covered by this
standard, where neither the switching device nor the socket-outlet or connector can be
replaced independently
2.104
isolation (isolating function)
function intended to cut off the supply from all or a discrete section of the installation, by
separating the installation or section from every source of electrical energy for reasons of
1
safety (see IEC 60947-1 and IEC 61140 )
2.105
utilization category
〈switching device〉 combination of specified requirements related to the conditions in which the
switching device fulfils its purpose, selected to represent a characteristic group of practical
applications
[IEV 441-17-19, modified]
NOTE The specified requirements may concern e.g. the values of making capacities (if applicable), breaking
capacities and other characteristics, the associated circuits under the relevant conditions of use and behaviour.
—————————
1
 IEC 61140, Protection against electric chock – Common aspects for installation and equipment

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60309-4  IEC:2006+A1:2012 – 7 –
2.106
interlock or interlocking device
device, either electrical or electronic or mechanical or a combination of these, which makes
the operation of a piece of product dependent upon the condition, position or operation of one
or more other pieces of product
2.107
control circuit device
electrical device intended for the controlling, signaling, interlocking, etc. of switchgear and
controlgear (see IEC 60947-1, 2.1.1)
2.108
pilot contact
auxiliary electric contact for use in a control or monitoring or interlock function
NOTE Pilot contact is not considered to be a pole.
2.109
latching device
part of the interlock mechanism provided to hold a plug or appliance-inlet in the socket-outlet
or connector
3 Normative references
This clause of Part 1 or Part 2 is applicable, except as follows:
Addition:
IEC 60073, Basic and safety principles for man-machine interface, marking and identification -
Coding principles for indicators and actuators
2
IEC 60417-DB:2002 , Graphical symbols for use on equipment
3
IEC 60617-DB:2001 , Graphical Symbols for diagrams
IEC 60947-1:2004, Low-voltage switchgear and controlgear – Part 1: General rules
IEC 60947-4-1, Low-voltage switchgear and controlgear – Part 4-1: Contactors and motor-
starters – Electromechanical contactors and motor-starters
IEC 60947-5-1:2003, Low-voltage switchgear and controlgear – Part 5-1: Control circuit
devices and switching elements – Electromechanical control circuit devices
IEC 61032, Protection of persons and equipment by enclosures – Probes for verification
IEC 61058-1, Switches for appliances – Part 1: General requirements
4 General
This clause of Part 1 or Part 2 is applicable except as follows:
—————————
2
“DB” refers to the IEC on-line database.
3
“DB” refers to the IEC on-line database.

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– 8 – 60309-4  IEC:2006+A1:2012
Addition:
4.101 Components incorporated or integrated in products (e.g. flexible cable, current cut-
outs, thermal cut-outs, safety transformers, switches, fuses, residual current devices,
lampholders and connecting devices) shall comply with the relevant standards as far as they
reasonably apply.
5 Standard ratings
This clause of Part 2 is applicable except as follows:
5.101 Replacement:
5.101 Standard IP ratings are
– IP44
– IP67
– IP66/IP67
For switched socket-outlet with or without interlock according to 6.1.101, the whole unit can
have a degree of protection different from IP44 or IP67 or IP66/IP67 but not lower than IP44
(see also 8.1).
6 Classification
This clause of Part 1 or Part 2 is applicable, except as follows:
6.1.1 Replacement:
6.1.1 According to purpose: socket-outlets, connectors
Deletion of 6.1.5.
Addition:
6.1.101 According to switching devices and interlock facilities:
– products with a switching device and without an interlock;
– products with a switching device and with an interlock.
6.1.102 According to the operation of the interlock/switching device
– manually;
– automatically (electrically and/or electronically);
– combination of the above.
NOTE Inserting the plug is not considered a manual operation of the interlock/switching device.
6.1.103 According to the mechanical switching device
– switch;
– switch-disconnector;
– contactor;
– other devices with suitable switch rating.

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60309-4  IEC:2006+A1:2012 – 9 –
6.1.104 According to suitability for isolation of the switching device
– suitable for isolation;
– not suitable for isolation.
6.1.105 According to whether the interlock system has a latching device
– with latching device (mechanical interlock);
– without latching device (electrical interlock).
6.1.106 According to the presence of a protective device
– with protective device;
– without protective device.
7 Marking
This clause of Part 1 or Part 2 is applicable, except as follows:
7.1 Addition:
– indication of the open and closed position of the switching device for products with
isolating function according to 6.1.104;
– indication of the type of switching device.
7.2 Addition:


Open position and/or
OFF
IEC 60417-5008

Closed position and/or
ON

IEC 60417-5007


Switch or


IEC 60617 – S00227
IEC 60947-3

Switch-disconnector

IEC 60617 – S00290

Contactor

IEC 60617 – S00284
Other devices According to IEC 60617

---------------------- Page: 11 ----------------------
– 10 – 60309-4  IEC:2006+A1:2012
7.3 Replacement:
7.3 The marking for rated current, the type reference, the nature of supply, if necessary, and
either the name or trademark of the manufacturer or the responsible vendor shall be on the
outside of the enclosure, or on the lid, if any, if the latter cannot be removed without the aid of
a tool.
These markings shall be easily discernible when the accessory is mounted and wired as in
normal use, if necessary after it has been removed from the enclosure. The marking, if any,
for the insulation voltage shall not be visible when the accessory is mounted and wired as in
normal use.
The marking for rated operating voltage, type reference, the degree of protection, and the
symbol indicating the position of the earthing contact or the means used for
interchangeability, if any, shall be on a place which is visible after installation of the
accessory, on the outside of enclosure or on the lid, if any, if the latter cannot be removed
without the aid of a tool.
With the exception of the type reference, these markings shall be easily discernible when the
accessory is mounted and wired as in normal use.
Compliance is checked by inspection.
7.4 This clause of Part 1 or Part 2 is not applicable.
7.5 Replacement:
7.5 Marking of the terminals for the supply cables
The neutral terminal, if any, shall be marked N.
The earth terminal, if any, shall be marked    or   .
The relationship between the terminals for the supply cable and load terminals/load contacts
shall be made clear, if necessary by means of a diagram or instruction.
Compliance is checked by inspection.
7.6 Replacement of the first sentence by the following text:
7.6 Marking on the outside of the enclosure shall be indelible and easily legible.
Addition:
7.101 The indication of the positions (open or closed) of the switching device shall be
unambiguous and clearly indicated.
The actuator of a mechanical switching device may be used to indicate the position of the
contacts.
For mechanical switching devices operated by means of two push-buttons, only the push-
button designated for the opening operation shall be red or marked with the symbol “O“.
The colours of other push-buttons, illuminated push-buttons and indicator lights shall be in
accordance with IEC 60073.

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60309-4  IEC:2006+A1:2012 – 11 –
7.102 The marking of the type of switching device shall be on a place which is visible after
installation of the products, on the outside of enclosure or on the lid, if any, if the latter cannot
be removed without the aid of a tool.
8 Dimensions
This clause of Part 2 is applicable except as follows:
8.1 Replacement of the first 2 paragraphs starting with “Accessories shall” and finishing with
“non-interchangeability” by the following:
Accessories shall comply with the relevant standard sheets as specified below:
– accessories having rated operating voltages exceeding 50 V:
– 16/20 A Sheets 2-VIII and 2-VIIIa;
– 16/20 A and 32/30 A Sheets 2-I, 2-II, 2-IX and 2-IXa;
– 63/60 A and 125/100 A, without pilot contact Sheets 2-III and 2-IV;
– 63/60 A and 125/100 A, with pilot contact Sheets 2-IIIa and 2-IVa;
– mechanical interlock for 16 A to 125 A accessories Sheet 2-V
– accessories having rated operating voltage not exceeding 50 V:
– 16/20 A and 32/30 A Sheets 2-VIII and 2-IX.
Switched socket-outlets according to 6.1.101 with degree of protection higher than IP44 and
different from IP67 shall use socket-outlets that comply with IP66/IP67 construction as stated
in standard sheet 2-I (continuation 2) or 2-III (continuation 2) or 2-VIII (continuation 2) (see
6.1.2).
Deviations from the dimensions specified in the standard sheets may be made, but only if
they provide a technical advantage and do not adversely affect the purpose and safety of the
accessories complying with the standard sheets, especially with regard to interchangeability
and non-interchangeability.
9 Protection against electric shock
Replacement of this clause of Part 1 or Part 2 by the following:
9.1 The enclosure shall be designed so that live parts are not accessible when in normal use
and when parts which can be removed without the aid of a tool have been removed.
Compliance is checked by inspection and, if necessary, by the tests from 9.1.1 to 9.1.3.
9.1.1 The standard test finger shown in Figure 2 of IEC 60309-1 is applied with a force of 10
N ± 1 N in every possible position. An electrical indicator with a voltage not less than 40 V
and not more than 50 V is used to show contact with the relevant part.
9.1.2 For elastomeric or thermoplastic enclosures, the following test is made at an ambient
temperature of 35°C ± 2
...