SIST EN IEC 60309-4:2022
(Main)Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes - Part 4: Switched socket-outlets with or without interlock (IEC 60309-4:2021)
Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes - Part 4: Switched socket-outlets with or without interlock (IEC 60309-4:2021)
Clause 1 of IEC 60309-1:2021 or of IEC 60309-2:2021 applies as follows:
Replace the first two paragraphs by the following:
This part of IEC 60309 applies to self-contained products primarily intended for industrial use,
either indoors or outdoors that combine the following items within a single enclosure:
– a fixed or portable socket-outlet according to IEC 60309-1 or IEC 60309-2 with a rated
operating voltage not exceeding 1 000 V DC or 1 000 V AC with a frequency not
exceeding 500 Hz and a rated current not exceeding 800 A;
– a switching device.
These products can incorporate an interlock and/or protective devices.
These accessories are intended to be installed by instructed persons or skilled persons only.
Stecker, ortsfeste oder ortsveränderliche Steckdosen und Gerätestecker für industrielle Anwendungen - Teil 4: Abschaltbare Steckdosen mit oder ohne Verriegelung (IEC 60309-4:2021)
Fiches, socles fixes de prise de courant, prises mobiles et socles de connecteur pour usages industriels - Partie 4: Socles de prise de courant avec interrupteur, avec ou sans dispositif de verrouillage (IEC 60309-4:2021)
L’IEC 60309-4:2021 s’applique aux ensembles indépendants destinés principalement à un usage industriel, à l’intérieur ou à l’extérieur, qui combinent dans une même enveloppe les éléments suivants:
- un socle fixe de prise de courant ou une prise mobile conforme à l’IEC 60309-1 ou l’IEC 60309-2 présentant une tension nominale d’emploi ne dépassant pas 1 000 V en courant continu ou 1 000 V en courant alternatif (avec une fréquence ne dépassant pas 500 Hz) et un courant nominal ne dépassant pas 800 A;
- un interrupteur.
Cette deuxième édition annule et remplace la première édition publiée en 2006 et son Amendement 1:2012. Elle constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
- mise à jour afin de prendre en compte les révisions techniques apportées à l’IEC 60309-1 et à l’IEC 60309-2.
Le présent document doit être lu conjointement avec l’IEC 60309-1:2021 et l’IEC 60309‑2:2021.
Vtiči, fiksne ali prenosne vtičnice in vtičnice za industrijsko rabo - 4. del: Vtičnice z zaklepom ali brez njega (IEC 60309-4:2021)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN IEC 60309-4:2022
01-december-2022
Nadomešča:
SIST EN 60309-4:2008
SIST EN 60309-4:2008/A1:2012
Vtiči, fiksne ali prenosne vtičnice in vtičnice za industrijsko rabo - 4. del: Vtičnice z
zaklepom ali brez njega (IEC 60309-4:2021)
Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes - Part
4: Switched socket-outlets with or without interlock (IEC 60309-4:2021)
Stecker, ortsfeste oder ortsveränderliche Steckdosen und Gerätestecker für industrielle
Anwendungen - Teil 4: Abschaltbare Steckdosen mit oder ohne Verriegelung
(IEC 60309-4:2021)
Fiches, socles fixes de prise de courant, prises mobiles et socles de connecteur pour
usages industriels - Partie 4: Socles de prise de courant avec interrupteur, avec ou sans
dispositif de verrouillage (IEC 60309-4:2021)
Ta slovenski standard je istoveten z: EN IEC 60309-4:2022
ICS:
29.120.30 Vtiči, vtičnice, spojke Plugs, socket-outlets,
couplers
SIST EN IEC 60309-4:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN IEC 60309-4:2022
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SIST EN IEC 60309-4:2022
EUROPEAN STANDARD EN IEC 60309-4
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2022
ICS 29.120.30 Supersedes EN 60309-4:2007 + A1:2012
English Version
Plugs, fixed or portable socket-outlets and appliance inlets for
industrial purposes - Part 4: Switched socket-outlets with or
without interlock
(IEC 60309-4:2021)
Fiches, socles fixes de prise de courant, prises mobiles et Stecker, ortsfeste oder ortsveränderliche Steckdosen und
socles de connecteur pour usages industriels - Partie 4: Gerätestecker für industrielle Anwendungen - Teil 4:
Socles de prise de courant avec interrupteur, avec ou sans Abschaltbare Steckdosen mit oder ohne Verriegelung
dispositif de verrouillage (IEC 60309-4:2021)
(IEC 60309-4:2021)
This European Standard was approved by CENELEC on 2021-09-08. 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60309-4:2022 E
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SIST EN IEC 60309-4:2022
EN IEC 60309-4:2022 (E)
European foreword
The text of document 23H/482/FDIS, future edition 2 of IEC 60309-4, prepared by SC 23H "Plugs,
Socket-outlets and Couplers for industrial and similar applications, and for Electric Vehicles" of
IEC/TC 23 "Electrical accessories" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 60309-4:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-12-17
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-06-17
document have to be withdrawn
This document supersedes EN 60309-4:2007 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 is read in conjunction with EN IEC 60309-1:2022 and with EN IEC 60309-2:2022.
This document has been prepared under a Standardization Request given to CENELEC by the
European Commission and the European Free Trade Association.
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 60309-4:2021 was approved by CENELEC as a European
Standard without any modification.
2
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SIST EN IEC 60309-4:2022
EN IEC 60309-4:2022 (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.
Clause 2 of EN IEC 60309-1:2022 applies except as follows:
Add the following references:
Publication Year Title EN/HD Year
IEC 60073 - Basic and safety principles for man-machine EN 60073 -
interface, marking and identification - Coding
principles for indicators and actuators
IEC 60309-1 2021 Plugs, fixed or portable socket-outlets and EN IEC 60309-1 2022
appliance inlets for industrial purposes - Part
1: General requirements
IEC 60309-2 2021 Plugs, fixed or portable socket-outlets and EN IEC 60309-2 2022
appliance inelts for industrial purposes - Part
2: Dimensional compatibility requirements for
pin and contact-tube accessories
IEC 60617 - Standard data element types with associated - -
classification scheme for electric components
- Part 4: IEC reference collection fo standard
data element types and component classes
IEC 60947-1 2020 Low-voltage switchgear and controlgear - EN IEC 60947-1 2021
Part 1: General rules
IEC 60947-3 - Low-voltage switchgear and controlgear - EN IEC 60947-3 -
Part 3: Switches, disconnectors, switch-
disconnectors and fuse-combination units
IEC 60947-4-1 - Low-voltage switchgear and controlgear - EN IEC 60947-4-1 -
Part 4-1: Contactors and motorstarters -
Electromechanical contactors and motor-
starters
IEC 60947-5-1 - Low-voltage switchgear and controlgear - EN 60947-5-1 -
Part 5-1: Control circuit devices and
switching elements - Electromechanical
control circuit devices
IEC 61058-1 - Switches for appliances - Part 1: General EN IEC 61058-1 -
requirements
3
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SIST EN IEC 60309-4:2022
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SIST EN IEC 60309-4:2022
IEC 60309-4
®
Edition 2.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Plugs, fixed or portable socket-outlets and appliance inlets for industrial
purposes –
Part 4: Switched socket-outlets with or without interlock
Fiches, socles fixes de prise de courant, prises mobiles et socles de connecteur
pour usages industriels –
Partie 4: Socles de prise de courant avec interrupteur, avec ou sans dispositif
de verrouillage
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.30 ISBN 978-2-8322-9847-3
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 60309-4:2022
– 2 – IEC 60309-4:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 General . 7
5 Standard ratings . 8
6 Classification of accessories . 8
7 Marking . 9
8 Dimensions. 10
9 Protection against electric shock . 11
10 Provision for earthing . 12
11 Terminals and terminations . 12
12 Interlocks, switches and their components . 12
13 Resistance to ageing of rubber and thermoplastic material . 17
14 Construction . 17
15 Construction of fixed socket-outlets . 17
16 Construction of plugs and portable socket-outlets . 17
17 Construction of appliance inlets . 17
18 Degrees of protection . 17
19 Insulation resistance and dielectric strength . 18
20 Breaking capacity . 18
21 Normal operation . 18
22 Temperature rise . 18
23 Flexible cables 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, to fire and to tracking . 21
28 Corrosion and resistance to rusting . 22
29 Conditional short-circuit current withstand test . 22
30 Electromagnetic compatibility . 22
Figure 401 – Example of apparatus for checking the withdrawal force . 15
Figure 402 – Actuator applied force F . 21
Table 401 – Withdrawal force with respect to ratings . 14
Table 11 – Temperature rise test . 19
Table 402 – Actuator test force F . 20
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SIST EN IEC 60309-4:2022
IEC 60309-4:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PLUGS, FIXED OR PORTABLE SOCKET-OUTLETS AND
APPLIANCE INLETS FOR INDUSTRIAL PURPOSES –
Part 4: Switched socket-outlets
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.
International Standard IEC 60309-4 has been prepared by subcommittee 23H: Plugs,
socket-outlets and couplers for industrial and similar applications, and for electric vehicles, of
IEC technical committee 23: Electrical accessories.
This second edition cancels and replaces the first edition published in 2006 and
Amendment 1:2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– updated in order to take into account the technical revisions to IEC 60309-1 and to
IEC 60309-2.
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SIST EN IEC 60309-4:2022
– 4 – IEC 60309-4:2021 © IEC 2021
The text of this International Standard is based on the following documents:
FDIS Report on voting
23H/482/FDIS 23H/488/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
available at www.iec.ch/members_experts/refdocs. The main document types developed by
IEC are described in greater detail at www.iec.ch/standardsdev/publications.
This document is to be read in conjunction with IEC 60309-1:2021 and with
IEC 60309-2:2021.
In this document, the following print types are used:
– requirements proper: in roman type;
– test specifications: in italic type;
– notes: in smaller roman type.
IEC 60309-1:2021 deals with general requirements and comprises all clauses of a general
character.
Subsequent parts deal with the requirements of particular types of accessories. The clauses
of these particular requirements supplement or modify the corresponding clauses of
IEC 60309-1:2021 or of IEC 60309-2:2021.
Clauses, subclauses, figures, tables and notes which are additional to those of
IEC 60309-1:2021 or of IEC 60309-2:2021 are numbered starting from 401.
A list of all parts in the IEC 60309 series, published under the general title Plugs, fixed or
portable socket-outlets and appliance inlets for industrial purposes, can be found on the IEC
website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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SIST EN IEC 60309-4:2022
IEC 60309-4:2021 © IEC 2021 – 5 –
PLUGS, FIXED OR PORTABLE SOCKET-OUTLETS AND
APPLIANCE INLETS FOR INDUSTRIAL PURPOSES –
Part 4: Switched socket-outlets
with or without interlock
1 Scope
Clause 1 of IEC 60309-1:2021 or of IEC 60309-2:2021 applies as follows:
Replace the first two paragraphs by the following:
This part of IEC 60309 applies to self-contained products primarily intended for industrial use,
either indoors or outdoors that combine the following items within a single enclosure:
– a fixed or portable socket-outlet according to IEC 60309-1 or IEC 60309-2 with a rated
operating voltage not exceeding 1 000 V DC or 1 000 V AC with a frequency not
exceeding 500 Hz and a rated current not exceeding 800 A;
– a switching device.
These products can incorporate an interlock and/or protective devices.
These accessories are intended to be installed by instructed persons or skilled persons only.
2 Normative references
Clause 2 of IEC 60309-1:2021 applies except as follows:
Additional normative references:
IEC 60073, Basic and safety principles for man-machine interface, marking and identification
– Coding principles for indicators and actuators
IEC 60309-1:2021, Plugs, fixed or portable socket-outlets and appliance inlets for industrial
purposes – Part 1: General requirements
IEC 60309-2:2021, Plugs, fixed or portable socket-outlets and appliance inlets for industrial
purposes – Part 2: Dimensional compatibility requirements for pin and contact-tube
accessories
IEC 60617, Graphical symbols for diagrams (available at http://std.iec.ch/iec60617)
IEC 60947-1:2020, Low-voltage switchgear and controlgear – Part 1: General rules
IEC 60947-3, Low-voltage switchgear and controlgear – Part 3: Switches, disconnectors,
switch-disconnectors and fuse-combination units
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, Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices
and switching elements – Electromechanical control circuit devices
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SIST EN IEC 60309-4:2022
– 6 – IEC 60309-4:2021 © IEC 2021
IEC 61058-1, Switches for appliances – Part 1: General requirements
3 Terms and definitions
Clause 3 of IEC 60309-1:2021 or of IEC 60309-2:2021 applies except as follows:
Terms and definitions 3.6 to 3.9 do not apply.
Add the following terms and definitions:
3.401
switched socket-outlet
product (interlocked or non-interlocked) containing in a single enclosure a switching device
and a socket-outlet, intended to be used in combination
3.402
interlocked socket-outlet
socket-outlet associated with an interlock
3.403
switching device
device designated to make or break the current in one or more electric circuits
[SOURCE IEC 60050-441:1984, 441-14-01]
3.403.1
mechanical switching device
switching device designed to close and open one or more electric circuits by means of
separable contacts
[SOURCE: IEC 60050-441:1984, 441-14-02, modified – The note has been omitted.]
3.403.1.1
(mechanical) switch
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
Note 1 to entry: A switch may be capable of making, but not breaking short-circuit currents.
[SOURCE: IEC 60050-411:1984, 441-14-10]
3.403.1.2
switch-disconnector
switch which, in the open position, complies with the requirements specified for the isolating
function
[SOURCE: IEC 60050-411:1984, 441-14-12, modified – Reference made to the isolating
function instead of to the requirements specified for a disconnector.]
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SIST EN IEC 60309-4:2022
IEC 60309-4:2021 © IEC 2021 – 7 –
3.403.1.3
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
[SOURCE: IEC 60050-411:1984, 441-14-33, modified – "mechanical" has been omitted from
the term and the note has been deleted.]
3.403.2
associated switching device
separate switching device which can be replaced independently
3.403.3
integral switching device
switching device constructed as a part of a socket-outlet covered by this document, where
neither the switching device nor the socket-outlet can be replaced independently
3.404
isolation
disconnection of an installation or its discrete section from any source of the electric energy
for purposes of electrical safety
[SOURCE: IEC 60947-1:2020, 3.3.19]
3.405
utilization category (for a switching device)
combination of specified requirements related to the condition in which the switching device
fulfils its purpose, selected to represent a characteristic group of practical applications
Note 1 to entry: The specified requirements may concern e.g. the values of making capacities (if applicable),
breaking capacities and other characteristics, the associated circuits and the relevant conditions of use and
behaviour.
[SOURCE: IEC 60050-411:1984, 441-17-19, modified – Deletion of "or a fuse" from the
domain, and "or the fuse" from the definition.]
3.406
control circuit device
electrical device intended for the controlling, signalling, interlocking, etc. of switchgear and
controlgear
Note 1 to entry: See IEC 60947-1:2020, 3.4.16.
3.407
latching device
part of the interlock mechanism provided to hold a plug or appliance inlet in the socket-outlet
4 General
Clause 4 of IEC 60309-1:2021 or of IEC 60309-2:2021 applies except as follows:
Additional subclause:
4.401 Components incorporated or integrated in products (e.g. flexible cable, current
cut-outs, thermal cut-outs, safety transformers, switches, fuses, residual current devices,
lamp holders and connecting devices) shall comply with the relevant standards as far as they
reasonably apply.
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5 Standard ratings
Clause 5 of IEC 60309-1:2021 applies for products incorporating socket-outlets according to
IEC 60309-1.
Clause 5 of IEC 60309-2:2021 applies with the following addition for products incorporating
socket-outlets according to IEC 60309-2:2021.
Add the following at the end of 5.201:
For switched socket-outlets with or without interlock according to 6.401, the whole unit can
have a different degree of protection but not lower than IP44 (see also 8.1).
6 Classification of accessories
Clause 6 of IEC 60309-1:2021 or of IEC 60309-2:2021 applies except as follows:
6.1 Replacement:
According to purpose:
– fixed socket-outlets,
– portable socket-outlets.
6.5 Not applicable.
Additional subclauses:
6.401 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.
6.402 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.
6.403 According to the mechanical switching device:
– switch;
– switch-disconnector;
– contactor;
– other devices with suitable switch rating.
6.404 According to suitability for isolation of the switching device:
– suitable for isolation;
– not suitable for isolation.
6.405 According to whether the interlock system has a latching device:
– with latching device (mechanical interlock);
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SIST EN IEC 60309-4:2022
IEC 60309-4:2021 © IEC 2021 – 9 –
– without latching device (electrical interlock).
6.406 According to the presence of a protective device:
– with protective device;
– without protective device.
7 Marking
Clause 7 of IEC 60309-1:2021 or of IEC 60309-2:2021 applies except as follows:
7.1 Add the following items to the list:
i) indication of the open and closed position of the switching device for products with
isolating function according to 6.404;
j) indication of the type of switching device.
7.2 Add the following to the existing list of symbols:
Open position and/or OFF
IEC 60417-5008
(2002-10)
Closed position and/or ON
IEC 60417-5007
(2002-10)
a)b)
Switch or
a)b)
Switch-disconnector
a)b)
Contactor
a)
Other devices According to their relevant standard
a)
Graphical symbol may appear in a vertical or horizontal orientation.
b)
In the absence of symbols for marking on equipment, symbols for diagrams according to
IEC 60617 are used.
7.4 Not applicable.
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SIST EN IEC 60309-4:2022
– 10 – IEC 60309-4:2021 © IEC 2021
7.5 Replacement:
The neutral terminal, if any, shall be marked N.
The earth terminal, if any, shall be marked (preferred) IEC 60417-5019 (2006-08) or
IEC 60417-5017 (2006-08).
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.
Additional marking to indicate neutral terminal and/or earthing terminal may be used as
follows:
– letter W and/or white colour for neutral;
– letter G and/or green colour for earthing.
No marking is required for terminals for pilot conductors. In the event that they are marked, it
is recommended to use the marking P or PILOT.
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.
Additional subclauses:
7.401 The position (open or closed) of the switching device shall be unambiguous and
clearly indicated.
The actuator of
...
SLOVENSKI STANDARD
oSIST prEN IEC 60309-4:2019
01-november-2019
Vtiči, fiksne ali prenosne vtičnice in vtičnice za industrijsko rabo - 4. del: Vtičnice
in konektorji s stikalom in z zaklepom ali brez njega
Plugs, fixed or portable socket- outlets and appliance inlets for industrial purposes - Part
4: Switched socket-outlets and connectors with or without interlock
Stecker, Steckdosen und Kupplungen für industrielle Anwendungen - Teil 4: Abschaltbare
Steckdosen und Kupplungen mit oder ohne Verriegelung
Prises de courant pour usages industriels - Partie 4: Prises de courant et prises mobiles
avec interrupteur, avec ou sans dispositif de verrouillage
Ta slovenski standard je istoveten z: prEN IEC 60309-4:2019
ICS:
29.120.30 Vtiči, vtičnice, spojke Plugs, socket-outlets,
couplers
oSIST prEN IEC 60309-4:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN IEC 60309-4:2019
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oSIST prEN IEC 60309-4:2019
23H/458/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60309-4 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2019-08-09 2019-11-01
SUPERSEDES DOCUMENTS:
23H/433/CD,23H/454/CC
IEC SC 23H : PLUGS, SOCKET-OUTLETS AND COUPLERS FOR INDUSTRIAL AND SIMILAR APPLICATIONS, AND FOR ELECTRIC
VEHICLES
SECRETARIAT: SECRETARY:
France Mr Bertrand Doignon
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
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:
Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes - Part 4:
Switched socket-outlets and connectors, with or without interlock
PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:
Copyright © 2019 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing
National Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part
of it, for any other purpose without permission in writing from IEC.
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60309-4/Ed.2/CDV © IEC(E) 2 23H/458/CDV
1 CONTENTS
2 FOREWORD . 3
3 INTRODUCTION . 5
4 1 Scope . 6
5 2 Normative references . 6
6 3 Terms and definitions . 7
7 4 General . 8
8 5 Standard ratings . 8
9 6 Classification . 9
10 7 Marking . 9
11 8 Dimensions . 11
12 9 Protection against electric shock . 11
13 10 Provision for earthing . 12
14 11 Terminals . 12
15 12 Interlocks . 12
16 12 Interlocks, switches and their components . 12
17 13 Resistance to ageing of rubber and thermoplastic material . 18
18 14 General construction . 18
19 15 Construction of fixed socket-outlets . 18
20 16 Construction of plugs and portable socket-outlets . 18
21 17 Construction of appliance inlets . 18
22 18 Degrees of protection . 18
23 19 Insulation resistance and dielectric strength . 18
24 20 Breaking capacity . 18
25 21 Normal operation . 18
26 22 Temperature rise . 19
27 23 Flexible cable and their connection . 20
28 24 Mechanical strength . 20
29 25 Screws, current-carrying parts and connections . 21
30 26 Creepage distances, clearances and distances through sealing compound . 22
31 27 Resistance to heat, to fire and to tracking . 22
32 28 Corrosion and resistance to rusting . 22
33 29 Conditional short-circuit current withstand test . 22
34 30 Electromagnetic compatibility . 22
35
36 Figure 401 – Example of apparatus for checking the withdrawal force . 15
37 Figure 402 – Actuator applied force F . 21
38
39 Table 401 − Withdrawal force with respect to ratings . 15
40 Table 402 – Actuator test force F . 21
41
42
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43 INTERNATIONAL ELECTROTECHNICAL COMMISSION
44 ____________
45
46 PLUGS, FIXED OR PORTABLE SOCKET-OUTLETS AND
47 APPLIANCE INLETS FOR INDUSTRIAL PURPOSES –
48
49 Part 4: Switched socket-outlets
50 with or without interlock
51
52
53
54 FOREWORD
55 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
56 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
57 international co-operation on all questions concerning standardization in the electrical and electronic fields. To
58 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
59 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
60 Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
61 in the subject dealt with may participate in this preparatory work. International, governmental and non-
62 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
63 with the International Organization for Standardization (ISO) in accordance with conditions determined by
64 agreement between the two organizations.
65 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
66 consensus of opinion on the relevant subjects since each technical committee has representation from all
67 interested IEC National Committees.
68 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
69 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
70 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
71 misinterpretation by any end user.
72 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
73 transparently to the maximum extent possible in their national and regional publications. Any divergence
74 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
75 the latter.
76 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
77 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
78 services carried out by independent certification bodies.
79 6) All users should ensure that they have the latest edition of this publication.
80 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
81 members of its technical committees and IEC National Committees for any personal injury, property damage or
82 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
83 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
84 Publications.
85 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
86 indispensable for the correct application of this publication.
87 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
88 patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
89 This new edition of IEC 60309-4 has been edited according to the current IEC/ISO Directives
90 Part 2 and to be in-line with the latest version (2020) of IEC 60309-1 and IEC 60309-2. It
91 bears the edition number 3.
92 The text of this International Standard is based on the following documents:
FDIS Report on voting
23H/---/FDIS 23H/---/RVD
93
94 International Standard IEC 60309-4 has been prepared by subcommittee 23H: Plugs and
95 socket-outlets for industrial purposes, of IEC technical committee 23: Electrical accessories.
96 This standard is to be read in conjunction with IEC 60309-1 (2020) and IEC 60309-2 (2020).
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97 Part 1 comprises clauses of a general character and the subsequent parts of the series deal
98 with particular types.
99 The clauses of the subsequent parts supplement or modify the corresponding clauses in Part 1.
100 Where the text of subsequent parts indicates an "addition" to or a "replacement" of the relevant
101 requirement, test specification or explanation of Part 1, these changes are made to the relevant
102 text of Part 1, which then becomes part of the standard. Where no change is necessary, the
103 words "This clause of Part 1 is applicable" are used.
104 Clauses, subclauses, figures, tables and notes which are additional to those in Part 1 are
105 numbered starting from 401.
106 The IEC 60309 series, under the general title Plugs, fixed or portable socket-outlets and
107 appliance inlets for industrial purposes comprises the following parts:
108 Part 1: General requirements
109 Part 2: Dimensional compatibility requirements for pin and contact-tube accessories
110 Part 4: Switched socket-outlets with or without interlock
111 The committee has decided that the contents of the base publication and its amendments will
112 remain unchanged until the stability date indicated on the IEC web site under
113 "http://webstore.iec.ch" in the data related to the specific publication. At this date, the
114 publication will be
115 • reconfirmed,
116 • withdrawn,
117 • replaced by a revised edition, or
118 • amended.
119
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120 INTRODUCTION
121
122 A list of all the parts in the IEC 60309 series, under the general title Plugs, fixed or portable
123 socket-outlets, and appliance inlets, can be found on the IEC website.
124 Subsequent parts of IEC 60309 deal with the requirements of particular types of accessories.
125 The clauses of these particular requirements supplement or modify the corresponding clauses
126 in the preceding Parts.
127 In this standard, the following print types are used:
128 • requirements proper: in roman type;
129 • test specifications: in italic type;
130 • notes: in smaller roman type.
131
132
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133 PLUGS, FIXED OR PORTABLE SOCKET-OUTLETS AND
134 APPLIANCE INLETS FOR INDUSTRIAL PURPOSES –
135
136 Part 4: Switched socket-outlets,
137 with or without interlock
138
139
140 1 Scope
141 Clause 1 of IEC 60309-1:2020 or IEC 60309-2:2020 applies as follows:
142 Replacement of the first paragraph by the following text:
143 This part of IEC 60309 applies to self-contained products primarily intended for industrial use,
144 either indoors or outdoors that combine the following items within a single enclosure:
145 - a fixed or portable socket-outlet according to IEC 60309-1 or IEC 60309-2 with a rated
146 operating voltage not exceeding 1 000 V DC or 1000 V AC not exceeding 500 Hz and
147 a rated current not exceeding 800 A,
148 - a switching device,
149 These products may incorporate an interlock and/or protective devices.
150 These accessories are intended to be installed by instructed persons (IEV 195-04-02) or
151 skilled persons (IEV 195-04-01) only.
152 2 Normative references
153 Clause 2 of IEC 60309-1:2020 applies except as follows:
154 Additional normative references:
155 IEC 60073, Basic and safety principles for man-machine interface, marking and identification -
156 Coding principles for indicators and actuators
1
157 IEC 60417-DB: , Graphical symbols for use on equipment
2
158 IEC 60617-DB , Graphical Symbols for diagrams
159 IEC 60947-1, Low-voltage switchgear and controlgear – Part 1: General rules
160 IEC 60947-4-1, Low-voltage switchgear and controlgear – Part 4-1: Contactors and motor-
161 starters – Electromechanical contactors and motor-starters
162 IEC 60947-5-1, Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices
163 and switching elements – Electromechanical control circuit devices
164 IEC 61032, Protection of persons and equipment by enclosures – Probes for verification
165 IEC 61058-1, Switches for appliances – Part 1: General requirements
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1
“DB” refers to the IEC on-line database.
2
“DB” refers to the IEC on-line database.
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166 3 Terms and definitions
167 Clause 3 of IEC 60309-1:2020 or IEC 60309-2:2020 applies except as follows:
168 Terms and definitions 3.6 to 3.9 do not apply.
169 Addition of the following terms and definitions:
170 3.401
171 switched socket-outlet
172 product containing in a single enclosure a switching device and a fixed or portable socket-
173 outlet, intended to be used in combination. It can be either interlocked or non-interlocked
174 3.402
175 interlocked socket-outlet
176 fixed or portable socket-outlet associated with an interlock
177 3.403
178 switching device
179 device designated to make or break the current in one or more electric circuits
180 [SOURCE IEV 441-14-01]
181 3.403.1
182 mechanical switching device
183 switching device designed to close and open one or more electric circuits by means of
184 separable contacts
185 [SOURCE IEV 441-14-02]
186 3.403.1.1
187 switch (mechanical)
188 mechanical switching device capable of making, carrying and breaking currents under normal
189 circuit conditions, which may include specified operating overload conditions and also
190 carrying, for a specified time, currents under specified abnormal circuit conditions such as
191 those of short-circuit
192 [SOURCE IEV 441-14-10]
193 NOTE 1 to entry A switch may be capable of making, but not breaking short-circuit currents.
194 3.403.1.1.1
195 switch-disconnector
196 switch, which in the open position complies with the requirements specified for the isolating
197 function
198 [SOURCE IEV 441-14-12 modified: This definition differs from IEV 441-14-05 by referring to
199 isolating function instead of the requirements specified for a disconnector.”]
200 3.403.1.2
201 contactor
202 mechanical switching device having only one position of rest, operated otherwise than by
203 hand, capable of making, carrying and breaking currents under normal circuit conditions,
204 including operating overload conditions
205 [SOURCE IEV 441-14-33]
206 3.403.2
207 associated switching device
208 separate switching device which can be replaced independently
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209 3.403.3
210 integral switching device
211 switching device constructed as a part of a fixed or portable socket-outlet covered by this
212 standard, where neither the switching device nor the socket-outlet can be replaced
213 independently
214 3.404
215 isolation (isolating function)
216 function intended to cut off the supply from all or a discrete section of the installation, by
217 separating the installation or section from every source of electrical energy for reasons of
3
218 safety (see IEC 60947-1 and IEC 61140 )
219 3.405
220 utilization category
221 〈switching device〉 combination of specified requirements related to the conditions in which the
222 switching device fulfils its purpose, selected to represent a characteristic group of practical
223 applications
224 NOTE The specified requirements may concern e.g. the values of making capacities (if applicable), breaking
225 capacities and other characteristics, the associated circuits under the relevant conditions of use and behaviour.
226 [SOURCE IEV 441-17-19, modified: deletion of “or the fuse”]
227 3.406
228 control circuit device
229 electrical device intended for the controlling, signalling, interlocking, etc. of switchgear and
230 controlgear (see IEC 60947-1, 2.1.1)
231 3.407
232 latching device
233 part of the interlock mechanism provided to hold a plug or appliance-inlet in the socket-outlet
234 4 General
235 Clause 4 of IEC 60309-1:2020 or IEC 60309-2:2020 applies except as follows:
236 Additional subclauses :
237 4.401 Components incorporated or integrated in products (e.g. flexible cable, current cut-
238 outs, thermal cut-outs, safety transformers, switches, fuses, residual current devices, lamp
239 holders and connecting devices) shall comply with the relevant standards as far as they
240 reasonably apply.
241 5 Standard ratings
242 Clause 5 of IEC 60309-1:2020 applies for products incorporating socket-outlets according to
243 IEC 60309-1
244 Clause 5 IEC 60309-2:2020 applies with the following addition for products incorporating
245 socket-outlets according to IEC 60309-2:
246 Add at the end of clause 5.201 the following:
247 For switched socket-outlet with or without interlock according to 6.1.401, the whole unit can
248 have a different degree of protection but not lower than IP44 (see also 8.1).
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3
IEC 61140, Protection against electric shock – Common aspects for installation and equipment
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249 6 Classification
250 Clause 6 of IEC 60309-1:2020 or IEC 60309-2:2020 applies except as follows:
251 6.1.1 Replacement:
252 According to purpose: fixed socket-outlets, portable socket-outlets
253 6.1.5 Not applicable
254 Additional subclauses:
255 6.1.401 According to switching devices and interlock facilities:
256 – products with a switching device and without an interlock;
257 – products with a switching device and with an interlock.
258 6.1.402 According to the operation of the interlock/switching device
259 – manually;
260 – automatically (electrically and/or electronically);
261 – combination of the above.
262 NOTE 1 Inserting the plug is not considered a manual operation of the interlock/switching device.
263 6.1.403 According to the mechanical switching device
264 – switch;
265 – switch-disconnector;
266 – contactor;
267 – other devices with suitable switch rating.
268 6.1.404 According to suitability for isolation of the switching device
269 – suitable for isolation;
270 – not suitable for isolation.
271 6.1.405 According to whether the interlock system has a latching device
272 – with latching device (mechanical interlock);
273 – without latching device (electrical interlock).
274 6.1.406 According to the presence of a protective device
275 – with protective device;
276 – without protective device.
277 7 Marking
278 Clause 7 of IEC 60309-1:2020 or IEC 60309-2:2020 applies except as follows:
279 7.1 Addition:
280 – indication of the open and closed position of the switching device for products with
281 isolating function according to 6.1.404;
282 – indication of the type of switching device.
283 7.2 Addition:
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Open position and/or
OFF
IEC 60417-5008
Closed position and/or
ON
IEC 60417-5007
a)b)
Switch or
a)b)
Switch-disconnector
a)b)
Contactor
a)
Other devices According to their relevant standard
a) Graphical symbol may appear in a vertical or horizontal orientation
b) in absence of symbols for marking on equipment, symbols for diagrams according
to IEC 60617-7 are used
284
285 7.4 Not applicable.
286 7.5 Replacement:
287 The neutral terminal, if any, shall be marked N.
288 The earth terminal, if any, shall be marked (preferred) IEC 60417-5019 (2006-08) or
289 IEC 60417-5017 (2006-08).
290 The relationship between the terminals for the supply cable and load terminals/load contacts
291 shall be made clear, if necessary, by means of a diagram or instruction.
292 Additional marking to indicate neutral terminal and/or earthing terminal may be used as
293 follows:
294 - letter W and/or white colour for neutral
295 - letter G and/or green colour for earthing
296 The terminals for pilot conductors are not required to be marked. In the case they are marked
297 it is recommended to use the marking P or PILOT
298 Compliance is checked by inspection.
299 7.6 Replacement of the first sentence by the following text:
300 7.6 Marking on the outside of the enclosure shall be indelible and easily legible.
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301 Additional subclauses :
302 7.401 The position (open or closed) of the switching device shall be unambiguous and
303 clearly indicated.
304 The actuator of a mechanical switching device may be used to indicate the position of the
305 contacts.
306 For mechanical switching devices operated by means of two push-buttons, only the push-
307 button designated for the opening operation shall be red or marked with the symbol “O“.
308 The colours of other push-buttons, illuminated push-buttons and indicator lights shall be in
309 accordance with IEC 60073.
310 7.402 The marking of the type of switching device shall be on a place which is visible after
311 installation of the products, on the outside of enclosure or on the lid, if any, if the latter cannot
312 be removed without the aid of a tool.
313 8 Dimensions
314 Clause 8 of IEC 60309-1:2020 applies for products incorporating socket-outlets according to
315 IEC 60309-1
316 Clause 8 IEC 60309-2:2020 applies with the following addition for products incorporating
317 socket-outlets according to IEC 60309-2:
318 8.1 Add after the first paragraph the following:
319 Switched socket-outlets, according to 6.1.401 with degree of protection higher than IP44 and
320 different from IP67 shall use socket-outlets that comply with construction as stated in
321 standard sheet 2-I (continuation 2) or 2-III (continuation 2) or 2-VIII (continuation 2) (see
322 6.1.2).
323 9 Protection against electric shock
324 Replacement of Clause 9 of IEC 60309-1:2020 or IEC 60309-2:2020 by the following:
325 9.1 The enclosure shall be designed so that live parts are not accessible when in normal use
326 and when parts which can be removed without the aid of a tool have been removed.
327 Compliance is checked by inspection and, if necessary, by the tests from 9.1.1 to 9.1.3.
328 9.1.1 The standard test finger according to IEC 61032 Probe B is applied with a force of 10
329 N ± 1 N in every possible position. An electrical indicator with a voltage not less than 40 V
330 and not more than 50 V is used to show contact with the relevant part.
331 9.1.2 For elastomeric or thermoplastic enclosures, the following test is made at an ambient
332 temperature of 35 °C ± 2 °C, the products being at this temperature.
333 During this test, the parts of elastomeric or thermoplastic material of the products are
334 subjected for 1 min to a force of 75 N, applied through the tip of a straight unjointed test finger
335 of the same dimensions as the standard test finger. This finger, with an electrical indicator as
336 described above, is applied to all places where yielding of the insulating material could impair
337 the safety of the product.
338 During this test, the product shall not deform to such an extent that live parts become
339 accessible.
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+0,1
340 9.1.3 The test probe D of IEC 61032 is applied with a force of 1 N.
0
341 This test does not apply to the components fitted to the product.
342 The test wire is provided with an electrical indicator, with a voltage not less than 40 V and not
343 more than 50 V, to show contact with relevant part.
344 The protection is satisfactory if the wire cannot enter the enclosure, or if it enters, it does not
345 touch live parts inside the enclosure.
346 9.2 Parts providing protection against electric shock shall have adequate mechanical
347 strength and shall be reliably secured by means of screws or in a similar reliable manner so
348 that they will not loosen in normal use.
349 Compliance is checked by inspection and by the tests of Clauses 24 and 25.
350 9.3 Knobs, operating levers, push-buttons, rockers and the like, for operating switches in
351 switched socket-outlets shall be of insulating material, unless their accessible metal parts are
352 separated from the metal parts of the mechanism by double insulation or reinforced insulation,
353 or they are reliably connected to earth.
354 Compliance is checked by inspection and by the tests of Clauses 19 and 22.
355 10 Provision for earthing
356 Clause 10 of IEC 60309-1:2020 or IEC 60309-2:2020 applies except as follows:
357 10.1 Replacement of the first paragraph by the following:
358 Products with earthing contact shall be provided with an earthing terminal. Metal-clad fixed
359 products with an internal earthing terminal can, in addition, be provided with an external
360 earthing terminal, which, except for flush type products, shall be visible from the outside.
361 The earthing terminal of the socket-outlet may be used provided it is easily accessible.
362 11 Terminals
363 Clause 11 of IEC 60309-1:2020 or IEC 60309-2:2020 applies.
364 12 Interlocks
365 Replacement of Clause 1
...
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