Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters (IEC 60947-4-1:2018)

This part of IEC 60947 is applicable to the following equipment:
– electromechanical contactors and starters including motor protective switching device
(MPSD);
– actuators of contactor relays;
– contacts dedicated exclusively to the coil circuit of this contactor or this contactor relay;
– dedicated accessories (e.g. dedicated wiring, dedicated latch accessory);
intended to be connected to distribution circuits, motors circuits and other load circuits, the
rated voltage of which does not exceed 1 000 V AC or 1 500 V DC.
This document covers also the assessment procedure for electromechanical overload
protection used in safety applications such as protecting a motor located in explosive
atmosphere from the outside atmosphere: See Annex L.
This document does not apply to:
– starters for DC motors 1;
NOTE 1 The requirements for DC motor starters are under consideration for the next maintenance cycle.
– auxiliary contacts of contactors and contacts of contactor relays. These are covered by
IEC 60947-5-1;
– starter used downstream to frequency drive1;
NOTE 2 Additional requirements for starter used downstream to frequency drive are under consideration for
the next maintenance cycle.
– short-circuit protective device integrated within starters other than MPSDs. This is covered
by IEC 60947-2 and IEC 60947-3;
– the use of the product with additional measure within explosive atmospheres. These are
given in IEC 60079 series;
– embedded software design rules1;
– cyber security aspects. These are covered by IEC 62443 series.
The objective of this document is to state:
a) the characteristics of the equipment;
b) the conditions applicable to the equipment with reference to:
1) its operation and behaviour,
2) its dielectric properties,
3) its degree of protection,
4) its construction including safety measures against electric shock, fire hazard and
mechanical hazard;
c) the tests intended for confirming that these conditions have been met, and the methods to
be adopted for these tests;
d) the information to be given with the equipment or in the manufacturer's literature.

Niederspannungsschaltgeräte - Teil 4-1: Schütze und Motorstarter - Elektromechanische Schütze und Motorstarter (IEC 60947-4-1:2018)

Appareillage à basse tension - Partie 4-1: Contacteurs et démarreurs de moteurs - Contacteurs et démarreurs électromécaniques (IEC 60947-4-1:2018)

IEC 60947-4-1:2018 est disponible sous forme de IEC 60947-4-1:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 60947-4-1:2018 s'applique aux équipements suivants: - contacteurs électromécaniques et démarreurs, y compris les appareils de connexion de protection des moteurs (ACPM); - organes de commande de contacteurs auxiliaires; - contacts destinés exclusivement au circuit de la bobine de ce contacteur ou ce contacteur auxiliaire; - accessoires dédiés (câblage dédié, accessoires d'accrochage dédié, par exemple); destinés à être connectés à des circuits de distribution, des circuits de moteur et à d'autres circuits de charge, dont la tension assignée ne dépasse pas 1 000 V en courant alternatif ou 1 500 V en courant continu. Cette quatrième édition annule et remplace la troisième édition parue en 2009, ainsi que son Amendement 1:2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - Structure du domaine d'application et exclusions - Corrections rédactionnelles des notes et des alinéas suspendus - Référence à l'IEC 62683-1 - Appareil de connexion de protection des moteurs (ACPM) accompagné de ses exigences - Aspects relatifs à la sécurité: - Aspects généraux; - Circuits limités en énergie; - Circuits électroniques; - Procédure d'évaluation de la protection électromécanique contre les surcharges utilisée dans des applications de sécurité (nouvelle Annexe L) - Introduction des dispositions relatives à l'impact du courant rotor bloqué plus élevé afin d'atteindre une classe de rendement supérieure - Mention des accessoires de câblage dédiés - Mesurage de la puissance d'appel - Alignement avec l'IEC 60947-1:2007, l'IEC 60947-1:2007/AMD1:2010, et l'IEC 60947‑1:2007/AMD2:2014 - Exigences en matière de courant continu pour couvrir les applications photovoltaïques (nouvelle Annexe M) - Indicateurs de surveillance de charge (nouvelle Annexe O) - Essais de coupure en court-circuit de l’ACPM (nouvelle Annexe P) - Coordination dans les conditions de court-circuit entre un ACPM et un autre dispositif de protection contre les courts-circuits associés dans le même circuit (nouvelle Annexe Q).

Nizkonapetostne stikalne in krmilne naprave - 4-1. del: Kontaktorji in motorski zaganjalniki - Elektromehanski kontaktorji in motorski zaganjalniki (IEC 60947-4-1:2018)

Ta del standarda IEC 60947 se uporablja za naslednjo opremo:
– elektromehanske kontaktorje in zaganjalnike, vključno z motorsko zaščitno stikalno napravo (MPSD);
– sprožilnike kontaktorskih relejev;
– kontakte, ki so namenjeni izključno tokokrogu tuljave tega kontaktorja ali tega kontaktorskega releja;
– namenski pribor (npr. namensko ožičenje, namenski zapah);
namenjeno za priključitev v razdelilne tokokroge, motorska vezja in druge obremenitvene tokokroge, katerih nazivna napetost ne presega 1000 V pri izmeničnem toku oziroma 1500 V pri enosmernem toku.
Ta dokument zajema tudi postopek ocenjevanja za elektromehansko zaščito pred preobremenitvijo, namenjeno varnostni uporabi, kot je zaščita motorja v eksplozivnem okolju pred vplivi zunanjega okolja: glej dodatek L.
Ta dokument se ne uporablja za:
– zaganjalnike za motorje na enosmerni tok1;
OPOMBA 1: Zahteve za zaganjalnike za motorje na enosmerni tok so v obravnavi za naslednji cikel vzdrževanja.
– pomožne kontakte kontaktorjev in kontakte kontaktorskih relejev; ti so zajeti v standardu IEC 60947-5-1;
– zaganjalnik, ki se uporablja na nizkonapetostni strani frekvenčnega pretvornika1;
OPOMBA 2: Dodatne zahteve za zaganjalnik, ki se uporablja na nizkonapetostni strani frekvenčnega pretvornika, so v obravnavi za naslednji cikel vzdrževanja.
– napravo za zaščito pred kratkim stikom, vgrajeno v zaganjalnikih, ki niso motorske zaščitne stikalne naprave; to je zajeto v standardih IEC 60947-2 in IEC 60947-3;
– uporabo izdelka z uvedbo dodatnih ukrepov v eksplozivnih okoljih; ti so podani v skupini standardov IEC 60079;
– pravila za načrtovanje vdelane programske opreme1;
– vidike kibernetske varnosti; ti so zajeti v skupini standardov IEC 62443.
Namen tega dokumenta je navesti:
a) značilnosti opreme;
b) pogoje, ki veljajo za opremo v zvezi z:
1) njenim delovanjem in obnašanjem,
2) njenimi dielektričnimi lastnostmi,
3) njeno stopnjo zaščite,
4) njeno konstrukcijo, vključno z zaščito pred električnim udarom, požarno ogroženostjo in mehanskim tveganjem;
c) preskuse, katerih cilj je potrditi, da so bili ti pogoji in metode izvajanja teh preskusov izpolnjeni;
d) informacije, ki se predložijo z opremo ali navedejo v navodilih proizvajalca.

General Information

Status
Published
Public Enquiry End Date
07-Sep-2017
Publication Date
01-Apr-2019
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
27-Mar-2019
Due Date
01-Jun-2019
Completion Date
02-Apr-2019

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SLOVENSKI STANDARD
SIST EN IEC 60947-4-1:2019
01-maj-2019
Nadomešča:
SIST EN 60947-4-1:2010
SIST EN 60947-4-1:2010/A1:2012
Nizkonapetostne stikalne in krmilne naprave - 4-1. del: Kontaktorji in motorski

zaganjalniki - Elektromehanski kontaktorji in motorski zaganjalniki (IEC 60947-4-

1:2018)

Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters -

Electromechanical contactors and motor-starters (IEC 60947-4-1:2018)

Niederspannungsschaltgeräte - Teil 4-1: Schütze und Motorstarter - Elektromechanische

Schütze und Motorstarter (IEC 60947-4-1:2018)

Appareillage à basse tension - Partie 4-1: Contacteurs et démarreurs de moteurs -

Contacteurs et démarreurs électromécaniques (IEC 60947-4-1:2018)
Ta slovenski standard je istoveten z: EN IEC 60947-4-1:2019
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN IEC 60947-4-1:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 60947-4-1:2019
---------------------- Page: 2 ----------------------
SIST EN IEC 60947-4-1:2019
EUROPEAN STANDARD EN IEC 60947-4-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2019
ICS 29.120.99; 29.130.20 Supersedes EN 60947-4-1:2010
English Version
Low-voltage switchgear and controlgear - Part 4-1: Contactors
and motor-starters - Electromechanical contactors and motor-
starters
(IEC 60947-4-1:2018)

Appareillage à basse tension - Partie 4-1: Contacteurs et Niederspannungsschaltgeräte - Teil 4-1: Schütze und

démarreurs de moteurs - Contacteurs et démarreurs Motorstarter - Elektromechanische Schütze und

électromécaniques Motorstarter
(IEC 60947-4-1:2018) (IEC 60947-4-1:2018)

This European Standard was approved by CENELEC on 2018-11-29. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60947-4-1:2019 E
---------------------- Page: 3 ----------------------
SIST EN IEC 60947-4-1:2019
EN IEC 60947-4-1:2019 (E)
European foreword

The text of document 121A/224/FDIS, future edition 4 of IEC 60947-4-1, prepared by SC 121A "Low-

voltage switchgear and controlgear" of IEC/TC 121 "Switchgear and controlgear and their assemblies

for low voltage" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as

EN IEC 60947-4-1:2019.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2019-09-22

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2022-03-22

document have to be withdrawn
This document supersedes EN 60947-4-1:2010.

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 has been prepared under a mandate given to CENELEC by the European Commission

and the European Free Trade Association, and supports essential requirements of EU Directives

2014/30/EU and 2014/35/EU.

For the relationship with the EU Directive 2014/30/EU see informative Annex ZZA and for the

relationship with the EU Directive 2014/35/EU see informative Annex ZZB, which are integral parts of

this document.
Endorsement notice

The text of the International Standard IEC 60947-4-1:2018 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards

indicated:
IEC 60068-2-2:2007 NOTE Harmonized as EN 60068-2-2:2007 (not modified)
IEC 60079 (series) NOTE Harmonized as EN 60079 (series)
IEC 60079-7 NOTE Harmonized as EN 60079-7
IEC 60079-29-3 NOTE Harmonized as EN 60079-29-3
IEC 60269-1:2006 NOTE Harmonized as EN 60269-1:2007 (not modified)
IEC 60269-2:2013 NOTE Harmonized as HD 60269-2:2013 (modified)
IEC 60664-1:2007 NOTE Harmonized as EN 60664-1:2007 (not modified)
IEC 60812:2006 NOTE Harmonized as EN 60812:2006 (not modified)
IEC 60947-3 NOTE Harmonized as EN 60947-3
IEC 60947-8 NOTE Harmonized as EN 60947-8
IEC 60990:2016 NOTE Harmonized as EN 60990:2016 (not modified)
IEC 61000-6-5 NOTE Harmonized as EN 61000-6-5
IEC 61032 NOTE Harmonized as EN 61032
IEC 61095:2009 NOTE Harmonized as EN 61095:2009 (not modified)
IEC 61508-2 NOTE Harmonized as EN 61508-2
---------------------- Page: 4 ----------------------
SIST EN IEC 60947-4-1:2019
EN IEC 60947-4-1:2019 (E)
IEC 61508-3 NOTE Harmonized as EN 61508-3
IEC 61508-4:2010 NOTE Harmonized as EN 61508-4:2010 (not modified)
IEC 61508-6:2010 NOTE Harmonized as EN 61508-6:2010 (not modified)
IEC 61649 NOTE Harmonized as EN 61649
IEC 61915-2:2011 NOTE Harmonized as EN 61915-2:2012 (not modified)
IEC 62061 NOTE Harmonized as EN 62061
IEC 62443 (series) NOTE Harmonized as EN 62443 (series)
IEC 62477-1:2012 NOTE Harmonized as EN 62477-1:2012 (not modified)
IEC 62683-1 NOTE Harmonized as EN 62683-1
ISO/IEC 80079-34 NOTE Harmonized as EN ISO/IEC 80079-34
---------------------- Page: 5 ----------------------
SIST EN IEC 60947-4-1:2019
EN IEC 60947-4-1:2019 (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.
Publication Year Title EN/HD Year
IEC 60034-1 2017 Rotating electrical machines - Part 1: - -
Rating and performance
IEC 60034-12 2016 Rotating electrical machines - Part 12: EN 60034-12 2017
Starting performance of single-speed
three-phase cage induction motors
IEC 60034-30-1 - Rotating electrical machines - Part 30-1: EN 60034-30-1 2014
Efficiency classes of line operated AC
motors (IE code)
IEC 60038 (mod) - IEC standard voltages EN 60038 2011

IEC 60068-2-14 2009 Environmental testing - Part 2-14: Tests - EN 60068-2-14 2009

Test N: Change of temperature
IEC 60079-14 - Explosive atmospheres - Part 14: Electrical EN 60079-14 2014
installations design, selection and erection
IEC 60085 2007 Electrical insulation - Thermal evaluation EN 60085 2008
and designation

IEC 60364-1 (mod) 2005 Low-voltage electrical installations - Part 1: HD 60364-1 2008

Fundamental principles, assessment of
general characteristics, definitions
- - + A11 2017

IEC 60364-7-712 - Electrical installations of buildings -- Part 7- HD 60364-7-712 2005

712: Requirements for special installations
or locations - Solar photovoltaic (PV)
power supply systems
- - + corrigendum 2006
IEC 60715 2017 Dimensions of low-voltage switchgear and EN 60715 2017
controlgear - Standardized mounting on
rails for mechanical support of switchgear,
controlgear and accessories
IEC 60730-1 (mod) - Automatic electrical controls - Part 1: EN 60730-1 2016
General requirements
---------------------- Page: 6 ----------------------
SIST EN IEC 60947-4-1:2019
EN IEC 60947-4-1:2019 (E)
Publication Year Title EN/HD Year
IEC 60947-1 2007 Low-voltage switchgear and controlgear - EN 60947-1 2007
Part 1: General rules
+ A1 2010 + A1 2011
+ A2 2014 + A2 2014
IEC 60947-2 2016 Low-voltage switchgear and controlgear - EN 60947-2 2017
Part 2: Circuit-breakers
+COR 1 2016
IEC 60947-5-1 2016 Low-voltage switchgear and controlgear - EN 60947-5-1 2017
Part 5-1: Control circuit devices and
switching elements - Electromechanical
control circuit devices
+COR 1 2016
- -
IEC 61000-6-2 - Electromagnetic compatibility (EMC) - Part EN 61000-6-2 2019
6-2: Generic standards - Immunity
standard for industrial environments
IEC 61051-2 1991 Varistors for use in electronic equipment - - -
Part 2: Sectional specification for surge
suppression varistors
IEC 61140 2016 Protection against electric shock - EN 61140 2016
Common aspects for installation and
equipment
IEC 61439 series Low-voltage switchgear and controlgear EN 61439 series
assemblies
IEC 61810-1 - Electromechanical elementary relays - Part EN 61810-1 2015
1: General and safety requirements
CISPR 11 (mod) 2015 Industrial, scientific and medical equipment EN 55011 2016
- Radio-frequency disturbance
characteristics - Limits and methods of
measurement
+ A1 2016 + A1 2017
ISO 2859-1 1999 Sampling procedures for inspection by - -
attributes -- Part 1: Sampling schemes
indexed by acceptance quality limit (AQL)
for lot-by-lot inspection
ISO 3864-2 2016 Graphical symbols - Safety colours and - -
safety signs – Part 2: Design principles for
product safety labels
Dated as no equivalent European Standard exists.
---------------------- Page: 7 ----------------------
SIST EN IEC 60947-4-1:2019
EN IEC 60947-4-1:2019 (E)
Annex ZZA
(informative)
Relationship between this European standard and the essential requirements
of Directive 2014/30/EU [2014 OJ L96] aimed to be covered and the
standardisation request M/552

This European standard has been prepared under the European Commission standardisation request

C(2016) 7641 final of 30.11.2016 , ('M/552'), as regards harmonised standards in support of Directive

2014/30/EU relating to electromagnetic compatibility, to provide one voluntary means of conforming to

essential requirements of Directive 2014/30/EU of the European Parliament and of the Council of 26

February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic

compatibility [2014 OJ L96].

Once this standard is cited in the Official Journal of the European Union under that Directive,

compliance with the normative clauses of this standard given in Table ZZA.1 confers, within the limits

of the scope of this standard, a presumption of conformity with the corresponding essential

requirements of that Directive, and associated EFTA regulations.
Table ZZA.1 – Correspondence between this European standard and the
Essential Requirements set out in Directive 2014/30/EU [2014 OJ L96]
Essential requirements of Clause(s) / sub-clause(s)
Remarks / Notes
Directive 2014/30/EU of this EN
Annex I. 1(a) (electromagnetic 2, 8.3.3, 9.4.1, 9.4.3
disturbances)
Annex I. 1(b) (electromagnetic 2, 8.3.1, 8.3.2, 9.4.1, 9.4.2
immunity)

WARNING 1: Presumption of conformity stays valid only as long as a reference to this European

standard is maintained in the list published in the Official Journal of the European Union. Users of this

standard should consult frequently the latest list published in the Official Journal of the European

Union.

WARNING 2: Other Union legislation may be applicable to the product(s) falling within the scope of

this standard.

COMMISSION IMPLEMENTING DECISION C(2016) 7641 final of 30.11.2016 on a standardisation request to the

European Committee for Standardisation, to the European Committee for Electrotechnical Standardisation and to the

European Telecommunications Standards Institute as regards harmonised standards in support of Directive 2014/30/EU

of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member

States relating to electromagnetic compatibility.
---------------------- Page: 8 ----------------------
SIST EN IEC 60947-4-1:2019
EN IEC 60947-4-1:2019 (E)
Annex ZZB
(informative)
Relationship between this European standard and the safety objectives of
Directive 2014/35/EU [2014 OJ L96] aimed to be covered

This European standard has been prepared under a Commission’s standardization request relating to

harmonized standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means

of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the

Council of 26 February 2014 on the harmonization of the laws of the Member States relating to the

making available on the market of electrical equipment designed for use within certain voltage limits

[2014 OJ L96].

Once this standard is cited in the Official Journal of the European Union under that Directive,

compliance with the normative clauses of this standard given in Table ZZB.1 confers, within the limits

of the scope of this standard, a presumption of conformity with the corresponding safety objectives of

that Directive, and associated EFTA regulations.
Table ZZB.1 – Correspondence between this European standard and Annex I of
Directive 2014/35/EU [2014 OJ L96]
Safety objectives of Clause(s) / sub-clause(s) of this EN Remarks/note
Directive 2014/35/EU
1 a) 2, 3, 5, 6, 8, Annex A, Annex B, Annex F,
Annex K, Annex M, Annex P, Annex Q
1 b) 2, 3, 5, 6, 7, 8, 9, Annex A, Annex F,
Annex G, Annex L, Annex M, Annex N,
Annex Q
1 c) 1, 2, 3, 5, 6, 7, 8,9, Annex A, Annex B,
Annex D, Annex F, Annex G, Annex H,
Annex I, Annex K, Annex L, Annex M,
Annex O, Annex P, Annex Q
2 a) 2, 3, 5, 6, 8, 9, Annex N
2 b) 2, 3, 5, 6, 8.1, 9, Annex L
2 c) 1, 2, 3, 5, 6, 7, 8, Annex F, Annex K, Annex L
2 d) 2, 3, 5, 6, 8, 9, Annex B, Annex F, Annex K,
Annex L, Annex M, Annex N, Annex P
3 a) 2, 3, 5, 6, 7, 8, 9, Annex L, Annex M
3 b) 2, 3, 5, 6, 7, 8, 9, Annex B, Annex D,
Annex G, Annex I, Annex K, Annex L,
Annex M, Annex P, Annex Q
3 c) 2, 3, 5, 6, 8, 9, Annex B, Annex D, Annex H,
Annex L, Annex P, Annex Q

WARNING 1: Presumption of conformity stays valid only as long as a reference to this European

standard is maintained in the list published in the Official Journal of the European Union. Users of this

standard should consult frequently the latest list published in the Official Journal of the European

Union.

WARNING 2: Other Union legislation may be applicable to the product(s) falling within the scope of

this standard.
---------------------- Page: 9 ----------------------
SIST EN IEC 60947-4-1:2019
---------------------- Page: 10 ----------------------
SIST EN IEC 60947-4-1:2019
IEC 60947-4-1
Edition 4.0 2018-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Low-voltage switchgear and controlgear –
Part 4-1: Contactors and motor-starters – Electromechanical contactors and
motor-starters
Appareillage à basse tension –
Partie 4-1: Contacteurs et démarreurs de moteurs – Contacteurs et démarreurs
électromécaniques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.99, 29.130.20 ISBN 978-2-8322-5922-1

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: 11 ----------------------
SIST EN IEC 60947-4-1:2019
– 2 – IEC 60947-4-1:2018 © IEC 2018
CONTENTS

FOREWORD ......................................................................................................................... 10

INTRODUCTION ................................................................................................................... 13

1 Scope ............................................................................................................................ 14

2 Normative references .................................................................................................... 15

3 Terms, definitions, symbols and abbreviated terms ........................................................ 16

3.1 General ................................................................................................................. 16

3.2 Alphabetical index of terms ................................................................................... 16

3.3 Terms and definitions concerning contactors ........................................................ 18

3.4 Terms and definitions concerning starters ............................................................. 19

3.5 Terms and definitions concerning characteristic quantities .................................... 25

3.6 Terms and definitions concerning safety aspects .................................................. 26

3.7 Symbols and abbreviated terms ............................................................................ 27

4 Classification ................................................................................................................. 28

5 Characteristics of contactors and starters ...................................................................... 28

5.1 Summary of characteristics ................................................................................... 28

5.2 Type of equipment ................................................................................................ 29

5.2.1 Kind of equipment .......................................................................................... 29

5.2.2 Number of poles ............................................................................................ 29

5.2.3 Kind of current (AC or DC) ............................................................................. 29

5.2.4 Interrupting medium (air, oil, gas, vacuum, etc.) ............................................ 29

5.2.5 Operating conditions of the equipment ........................................................... 29

5.3 Rated and limiting values for main circuits ............................................................ 29

5.3.1 Rated voltages .............................................................................................. 29

5.3.2 Currents or powers ........................................................................................ 31

5.3.3 Rated frequency ............................................................................................ 32

5.3.4 Rated duties .................................................................................................. 32

5.3.5 Normal load and overload characteristics ...................................................... 33

5.3.6 Short-circuit characteristics ........................................................................... 35

5.3.7 Pole impedance of a contactor (Z) ................................................................. 36

5.4 Utilization category ............................................................................................... 36

5.4.1 General ......................................................................................................... 36

5.4.2 Assignment of utilization categories based on the results of tests .................. 36

5.5 Control circuits ...................................................................................................... 38

5.6 Auxiliary circuits .................................................................................................... 39

5.7 Characteristics of relay and release of overload relays and motor protective

switching device (MPSD) ...................................................................................... 39

5.7.1 Summary of characteristics ............................................................................ 39

5.7.2 Types of relay or release ............................................................................... 39

5.7.3 Characteristic values ..................................................................................... 39

5.7.4 Designation and current settings of overload relays ....................................... 41

5.7.5 Time-current characteristics of overload relays .............................................. 41

5.7.6 Influence of ambient air temperature.............................................................. 42

5.8 Co-ordination with short-circuit protective devices ................................................. 42

5.9 Void ...................................................................................................................... 42

5.10 Types and characteristics of automatic change-over devices and automatic

acceleration control devices .................................................................................. 42

---------------------- Page: 12 ----------------------
SIST EN IEC 60947-4-1:2019
IEC 60947-4-1:2018 © IEC 2018 – 3 –

5.10.1 Types ............................................................................................................ 42

5.10.2 Characteristics............................................................................................... 42

5.11 Types and characteristics of auto-transformers for two-step auto-transformer

starters ................................................................................................................. 43

5.12 Types and characteristics of starting resistors for rheostatic rotor starters ............ 43

6 Product information ....................................................................................................... 43

6.1 Nature of information ............................................................................................ 43

6.1.1 Identification .................................................................................................. 43

6.1.2 Characteristics, basic rated values and utilization .......................................... 44

6.2 Marking ................................................................................................................. 45

6.3 Instructions for installation, operation, maintenance, decommissioning and

dismantling ........................................................................................................... 46

6.4 Environmental information .................................................................................... 46

7 Normal service, mounting and transport conditions ........................................................ 46

8 Constructional and performance requirements ............................................................... 47

8.1 Constructional requirements ................................................................................. 47

8.1.1 General ......................................................................................................... 47

8.1.2 Materials ....................................................................................................... 47

8.1.3 Current-carrying parts and their connections ................................................. 48

8.1.4 Clearances and creepage distances .............................................................. 48

8.1.5 Actuator ......................................................................................................... 48

8.1.6 Indication of the contact position ................................................................... 49

8.1.7 Additional requirements for equipment suitable for isolation ........................... 49

8.1.8 Terminals ...................................................................................................... 49

8.1.9 Additional requirements for equipment provided with a neutral pole ............... 49

8.1.10 Provisions for protective earthing ................................................................... 49

8.1.11 Enclosures for equipment .............................................................................. 49

8.1.12 Degrees of protection of enclosed equipment ................................................ 50

8.1.13 Conduit pull-out, torque and bending with metallic conduits ........................... 50

8.1.14 Limited energy source ................................................................................... 50

8.1.15 Stored charge energy circuit .......................................................................... 52

8.1.16 Fault and abnormal conditions ....................................................................... 52

8.1.17 Short-circuit and overload protection of ports ................................................. 53

8.2 Performance requirements .................................................................................... 53

8.2.1 Operating conditions ...................................................................................... 53

8.2.2 Temperature-rise ........................................................................................... 59

8.2.3 Dielectric properties ....................................................................................... 61

8.2.4 Normal load and overload performance requirements .................................... 62

8.2.5 Co-ordination with short-circuit protective devices ......................................... 68

8.3 Electromagnetic compatibility (EMC) ..................................................................... 71

8.3.1 General ......................................................................................................... 71

8.3.2 Immunity ........................................................................................................ 71

8.3.3 Emission ........................................................................................................ 72

9 Tests ............................................................................................................................. 72

9.1 Kinds of test .......................................................................................................... 72

9.1.1 General ......................................................................................................... 72

9.1.2 Type tests ...................................................................................................... 73

9.1.3 Routine tests ................................................................................................. 73

---------------------- Page: 13 ----------------------
SIST EN IEC 60947-4-1:2019
– 4 – IEC 60947-4-1:2018 © IEC 2018

9.1.4 Sampling tests ............................................................................................... 73

9.1.5 Special tests .................................................................................................. 74

9.2 Compliance with constructional requirements ........................................................ 75

9.2.1 General ......................................................................................................... 75

9.2.2 Electrical performance of screwless-type clamping units ................................ 75

9.2.3 Ageing test for screwless-type clamping units ................................................ 75

9.2.4 Limited energy source test ............................................................................. 76

9.2.5 Breakdown of components ............................................................................. 76

9.3 Compliance with performance requirements .......................................................... 77

9.3.1 Test sequences ............................................................................................. 77

9.3.2 General test conditions .................................................................................. 78

9.3.3 Performance under no load, normal load and overload conditions .................. 78

9.3.4 Performance under short-circuit conditions .................................................... 90

9.3.5 Overload current withstand capability of contactors ....................................... 95

9.3.6 Routine tests and sampling tests ................................................................... 95

9.4 EMC tests .................................
...

SLOVENSKI STANDARD
SIST EN IEC 60947-4-1:2019
01-maj-2019
Nadomešča:
SIST EN 60947-4-1:2010
SIST EN 60947-4-1:2010/A1:2012
Nizkonapetostne stikalne in krmilne naprave - 4-1. del: Kontaktorji in motorski

zaganjalniki - Elektromehanski kontaktorji in motorski zaganjalniki (IEC 60947-4-

1:2018)

Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters -

Electromechanical contactors and motor-starters (IEC 60947-4-1:2018)

Niederspannungsschaltgeräte - Teil 4-1: Schütze und Motorstarter - Elektromechanische

Schütze und Motorstarter (IEC 60947-4-1:2018)

Appareillage à basse tension - Partie 4-1: Contacteurs et démarreurs de moteurs -

Contacteurs et démarreurs électromécaniques (IEC 60947-4-1:2018)
Ta slovenski standard je istoveten z: EN IEC 60947-4-1:2019
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN IEC 60947-4-1:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD EN IEC 60947-4-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2019
ICS 29.120.99; 29.130.20 Supersedes EN 60947-4-1:2010
English Version
Low-voltage switchgear and controlgear - Part 4-1: Contactors
and motor-starters - Electromechanical contactors and motor-
starters
(IEC 60947-4-1:2018)

Appareillage à basse tension - Partie 4-1: Contacteurs et Niederspannungsschaltgeräte - Teil 4-1: Schütze und

démarreurs de moteurs - Contacteurs et démarreurs Motorstarter - Elektromechanische Schütze und

électromécaniques Motorstarter
(IEC 60947-4-1:2018) (IEC 60947-4-1:2018)

This European Standard was approved by CENELEC on 2018-11-29. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60947-4-1:2019 E
---------------------- Page: 2 ----------------------
EN IEC 60947-4-1:2019 (E)
European foreword

The text of document 121A/224/FDIS, future edition 4 of IEC 60947-4-1, prepared by SC 121A "Low-

voltage switchgear and controlgear" of IEC/TC 121 "Switchgear and controlgear and their assemblies

for low voltage" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as

EN IEC 60947-4-1:2019.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2019-09-22

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2022-03-22

document have to be withdrawn
This document supersedes EN 60947-4-1:2010.

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 has been prepared under a mandate given to CENELEC by the European Commission

and the European Free Trade Association, and supports essential requirements of EU Directives

2014/30/EU and 2014/35/EU.

For the relationship with the EU Directive 2014/30/EU see informative Annex ZZA and for the

relationship with the EU Directive 2014/35/EU see informative Annex ZZB, which are integral parts of

this document.
Endorsement notice

The text of the International Standard IEC 60947-4-1:2018 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards

indicated:
IEC 60068-2-2:2007 NOTE Harmonized as EN 60068-2-2:2007 (not modified)
IEC 60079 (series) NOTE Harmonized as EN 60079 (series)
IEC 60079-7 NOTE Harmonized as EN 60079-7
IEC 60079-29-3 NOTE Harmonized as EN 60079-29-3
IEC 60269-1:2006 NOTE Harmonized as EN 60269-1:2007 (not modified)
IEC 60269-2:2013 NOTE Harmonized as HD 60269-2:2013 (modified)
IEC 60664-1:2007 NOTE Harmonized as EN 60664-1:2007 (not modified)
IEC 60812:2006 NOTE Harmonized as EN 60812:2006 (not modified)
IEC 60947-3 NOTE Harmonized as EN 60947-3
IEC 60947-8 NOTE Harmonized as EN 60947-8
IEC 60990:2016 NOTE Harmonized as EN 60990:2016 (not modified)
IEC 61000-6-5 NOTE Harmonized as EN 61000-6-5
IEC 61032 NOTE Harmonized as EN 61032
IEC 61095:2009 NOTE Harmonized as EN 61095:2009 (not modified)
IEC 61508-2 NOTE Harmonized as EN 61508-2
---------------------- Page: 3 ----------------------
EN IEC 60947-4-1:2019 (E)
IEC 61508-3 NOTE Harmonized as EN 61508-3
IEC 61508-4:2010 NOTE Harmonized as EN 61508-4:2010 (not modified)
IEC 61508-6:2010 NOTE Harmonized as EN 61508-6:2010 (not modified)
IEC 61649 NOTE Harmonized as EN 61649
IEC 61915-2:2011 NOTE Harmonized as EN 61915-2:2012 (not modified)
IEC 62061 NOTE Harmonized as EN 62061
IEC 62443 (series) NOTE Harmonized as EN 62443 (series)
IEC 62477-1:2012 NOTE Harmonized as EN 62477-1:2012 (not modified)
IEC 62683-1 NOTE Harmonized as EN 62683-1
ISO/IEC 80079-34 NOTE Harmonized as EN ISO/IEC 80079-34
---------------------- Page: 4 ----------------------
EN IEC 60947-4-1:2019 (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.
Publication Year Title EN/HD Year
IEC 60034-1 2017 Rotating electrical machines - Part 1: - -
Rating and performance
IEC 60034-12 2016 Rotating electrical machines - Part 12: EN 60034-12 2017
Starting performance of single-speed
three-phase cage induction motors
IEC 60034-30-1 - Rotating electrical machines - Part 30-1: EN 60034-30-1 2014
Efficiency classes of line operated AC
motors (IE code)
IEC 60038 (mod) - IEC standard voltages EN 60038 2011

IEC 60068-2-14 2009 Environmental testing - Part 2-14: Tests - EN 60068-2-14 2009

Test N: Change of temperature
IEC 60079-14 - Explosive atmospheres - Part 14: Electrical EN 60079-14 2014
installations design, selection and erection
IEC 60085 2007 Electrical insulation - Thermal evaluation EN 60085 2008
and designation

IEC 60364-1 (mod) 2005 Low-voltage electrical installations - Part 1: HD 60364-1 2008

Fundamental principles, assessment of
general characteristics, definitions
- - + A11 2017

IEC 60364-7-712 - Electrical installations of buildings -- Part 7- HD 60364-7-712 2005

712: Requirements for special installations
or locations - Solar photovoltaic (PV)
power supply systems
- - + corrigendum 2006
IEC 60715 2017 Dimensions of low-voltage switchgear and EN 60715 2017
controlgear - Standardized mounting on
rails for mechanical support of switchgear,
controlgear and accessories
IEC 60730-1 (mod) - Automatic electrical controls - Part 1: EN 60730-1 2016
General requirements
---------------------- Page: 5 ----------------------
EN IEC 60947-4-1:2019 (E)
Publication Year Title EN/HD Year
IEC 60947-1 2007 Low-voltage switchgear and controlgear - EN 60947-1 2007
Part 1: General rules
+ A1 2010 + A1 2011
+ A2 2014 + A2 2014
IEC 60947-2 2016 Low-voltage switchgear and controlgear - EN 60947-2 2017
Part 2: Circuit-breakers
+COR 1 2016
IEC 60947-5-1 2016 Low-voltage switchgear and controlgear - EN 60947-5-1 2017
Part 5-1: Control circuit devices and
switching elements - Electromechanical
control circuit devices
+COR 1 2016
- -
IEC 61000-6-2 - Electromagnetic compatibility (EMC) - Part EN 61000-6-2 2019
6-2: Generic standards - Immunity
standard for industrial environments
IEC 61051-2 1991 Varistors for use in electronic equipment - - -
Part 2: Sectional specification for surge
suppression varistors
IEC 61140 2016 Protection against electric shock - EN 61140 2016
Common aspects for installation and
equipment
IEC 61439 series Low-voltage switchgear and controlgear EN 61439 series
assemblies
IEC 61810-1 - Electromechanical elementary relays - Part EN 61810-1 2015
1: General and safety requirements
CISPR 11 (mod) 2015 Industrial, scientific and medical equipment EN 55011 2016
- Radio-frequency disturbance
characteristics - Limits and methods of
measurement
+ A1 2016 + A1 2017
ISO 2859-1 1999 Sampling procedures for inspection by - -
attributes -- Part 1: Sampling schemes
indexed by acceptance quality limit (AQL)
for lot-by-lot inspection
ISO 3864-2 2016 Graphical symbols - Safety colours and - -
safety signs – Part 2: Design principles for
product safety labels
Dated as no equivalent European Standard exists.
---------------------- Page: 6 ----------------------
EN IEC 60947-4-1:2019 (E)
Annex ZZA
(informative)
Relationship between this European standard and the essential requirements
of Directive 2014/30/EU [2014 OJ L96] aimed to be covered and the
standardisation request M/552

This European standard has been prepared under the European Commission standardisation request

C(2016) 7641 final of 30.11.2016 , ('M/552'), as regards harmonised standards in support of Directive

2014/30/EU relating to electromagnetic compatibility, to provide one voluntary means of conforming to

essential requirements of Directive 2014/30/EU of the European Parliament and of the Council of 26

February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic

compatibility [2014 OJ L96].

Once this standard is cited in the Official Journal of the European Union under that Directive,

compliance with the normative clauses of this standard given in Table ZZA.1 confers, within the limits

of the scope of this standard, a presumption of conformity with the corresponding essential

requirements of that Directive, and associated EFTA regulations.
Table ZZA.1 – Correspondence between this European standard and the
Essential Requirements set out in Directive 2014/30/EU [2014 OJ L96]
Essential requirements of Clause(s) / sub-clause(s)
Remarks / Notes
Directive 2014/30/EU of this EN
Annex I. 1(a) (electromagnetic 2, 8.3.3, 9.4.1, 9.4.3
disturbances)
Annex I. 1(b) (electromagnetic 2, 8.3.1, 8.3.2, 9.4.1, 9.4.2
immunity)

WARNING 1: Presumption of conformity stays valid only as long as a reference to this European

standard is maintained in the list published in the Official Journal of the European Union. Users of this

standard should consult frequently the latest list published in the Official Journal of the European

Union.

WARNING 2: Other Union legislation may be applicable to the product(s) falling within the scope of

this standard.

COMMISSION IMPLEMENTING DECISION C(2016) 7641 final of 30.11.2016 on a standardisation request to the

European Committee for Standardisation, to the European Committee for Electrotechnical Standardisation and to the

European Telecommunications Standards Institute as regards harmonised standards in support of Directive 2014/30/EU

of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member

States relating to electromagnetic compatibility.
---------------------- Page: 7 ----------------------
EN IEC 60947-4-1:2019 (E)
Annex ZZB
(informative)
Relationship between this European standard and the safety objectives of
Directive 2014/35/EU [2014 OJ L96] aimed to be covered

This European standard has been prepared under a Commission’s standardization request relating to

harmonized standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means

of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the

Council of 26 February 2014 on the harmonization of the laws of the Member States relating to the

making available on the market of electrical equipment designed for use within certain voltage limits

[2014 OJ L96].

Once this standard is cited in the Official Journal of the European Union under that Directive,

compliance with the normative clauses of this standard given in Table ZZB.1 confers, within the limits

of the scope of this standard, a presumption of conformity with the corresponding safety objectives of

that Directive, and associated EFTA regulations.
Table ZZB.1 – Correspondence between this European standard and Annex I of
Directive 2014/35/EU [2014 OJ L96]
Safety objectives of Clause(s) / sub-clause(s) of this EN Remarks/note
Directive 2014/35/EU
1 a) 2, 3, 5, 6, 8, Annex A, Annex B, Annex F,
Annex K, Annex M, Annex P, Annex Q
1 b) 2, 3, 5, 6, 7, 8, 9, Annex A, Annex F,
Annex G, Annex L, Annex M, Annex N,
Annex Q
1 c) 1, 2, 3, 5, 6, 7, 8,9, Annex A, Annex B,
Annex D, Annex F, Annex G, Annex H,
Annex I, Annex K, Annex L, Annex M,
Annex O, Annex P, Annex Q
2 a) 2, 3, 5, 6, 8, 9, Annex N
2 b) 2, 3, 5, 6, 8.1, 9, Annex L
2 c) 1, 2, 3, 5, 6, 7, 8, Annex F, Annex K, Annex L
2 d) 2, 3, 5, 6, 8, 9, Annex B, Annex F, Annex K,
Annex L, Annex M, Annex N, Annex P
3 a) 2, 3, 5, 6, 7, 8, 9, Annex L, Annex M
3 b) 2, 3, 5, 6, 7, 8, 9, Annex B, Annex D,
Annex G, Annex I, Annex K, Annex L,
Annex M, Annex P, Annex Q
3 c) 2, 3, 5, 6, 8, 9, Annex B, Annex D, Annex H,
Annex L, Annex P, Annex Q

WARNING 1: Presumption of conformity stays valid only as long as a reference to this European

standard is maintained in the list published in the Official Journal of the European Union. Users of this

standard should consult frequently the latest list published in the Official Journal of the European

Union.

WARNING 2: Other Union legislation may be applicable to the product(s) falling within the scope of

this standard.
---------------------- Page: 8 ----------------------
IEC 60947-4-1
Edition 4.0 2018-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Low-voltage switchgear and controlgear –
Part 4-1: Contactors and motor-starters – Electromechanical contactors and
motor-starters
Appareillage à basse tension –
Partie 4-1: Contacteurs et démarreurs de moteurs – Contacteurs et démarreurs
électromécaniques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.99, 29.130.20 ISBN 978-2-8322-5922-1

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: 9 ----------------------
– 2 – IEC 60947-4-1:2018 © IEC 2018
CONTENTS

FOREWORD ......................................................................................................................... 10

INTRODUCTION ................................................................................................................... 13

1 Scope ............................................................................................................................ 14

2 Normative references .................................................................................................... 15

3 Terms, definitions, symbols and abbreviated terms ........................................................ 16

3.1 General ................................................................................................................. 16

3.2 Alphabetical index of terms ................................................................................... 16

3.3 Terms and definitions concerning contactors ........................................................ 18

3.4 Terms and definitions concerning starters ............................................................. 19

3.5 Terms and definitions concerning characteristic quantities .................................... 25

3.6 Terms and definitions concerning safety aspects .................................................. 26

3.7 Symbols and abbreviated terms ............................................................................ 27

4 Classification ................................................................................................................. 28

5 Characteristics of contactors and starters ...................................................................... 28

5.1 Summary of characteristics ................................................................................... 28

5.2 Type of equipment ................................................................................................ 29

5.2.1 Kind of equipment .......................................................................................... 29

5.2.2 Number of poles ............................................................................................ 29

5.2.3 Kind of current (AC or DC) ............................................................................. 29

5.2.4 Interrupting medium (air, oil, gas, vacuum, etc.) ............................................ 29

5.2.5 Operating conditions of the equipment ........................................................... 29

5.3 Rated and limiting values for main circuits ............................................................ 29

5.3.1 Rated voltages .............................................................................................. 29

5.3.2 Currents or powers ........................................................................................ 31

5.3.3 Rated frequency ............................................................................................ 32

5.3.4 Rated duties .................................................................................................. 32

5.3.5 Normal load and overload characteristics ...................................................... 33

5.3.6 Short-circuit characteristics ........................................................................... 35

5.3.7 Pole impedance of a contactor (Z) ................................................................. 36

5.4 Utilization category ............................................................................................... 36

5.4.1 General ......................................................................................................... 36

5.4.2 Assignment of utilization categories based on the results of tests .................. 36

5.5 Control circuits ...................................................................................................... 38

5.6 Auxiliary circuits .................................................................................................... 39

5.7 Characteristics of relay and release of overload relays and motor protective

switching device (MPSD) ...................................................................................... 39

5.7.1 Summary of characteristics ............................................................................ 39

5.7.2 Types of relay or release ............................................................................... 39

5.7.3 Characteristic values ..................................................................................... 39

5.7.4 Designation and current settings of overload relays ....................................... 41

5.7.5 Time-current characteristics of overload relays .............................................. 41

5.7.6 Influence of ambient air temperature.............................................................. 42

5.8 Co-ordination with short-circuit protective devices ................................................. 42

5.9 Void ...................................................................................................................... 42

5.10 Types and characteristics of automatic change-over devices and automatic

acceleration control devices .................................................................................. 42

---------------------- Page: 10 ----------------------
IEC 60947-4-1:2018 © IEC 2018 – 3 –

5.10.1 Types ............................................................................................................ 42

5.10.2 Characteristics............................................................................................... 42

5.11 Types and characteristics of auto-transformers for two-step auto-transformer

starters ................................................................................................................. 43

5.12 Types and characteristics of starting resistors for rheostatic rotor starters ............ 43

6 Product information ....................................................................................................... 43

6.1 Nature of information ............................................................................................ 43

6.1.1 Identification .................................................................................................. 43

6.1.2 Characteristics, basic rated values and utilization .......................................... 44

6.2 Marking ................................................................................................................. 45

6.3 Instructions for installation, operation, maintenance, decommissioning and

dismantling ........................................................................................................... 46

6.4 Environmental information .................................................................................... 46

7 Normal service, mounting and transport conditions ........................................................ 46

8 Constructional and performance requirements ............................................................... 47

8.1 Constructional requirements ................................................................................. 47

8.1.1 General ......................................................................................................... 47

8.1.2 Materials ....................................................................................................... 47

8.1.3 Current-carrying parts and their connections ................................................. 48

8.1.4 Clearances and creepage distances .............................................................. 48

8.1.5 Actuator ......................................................................................................... 48

8.1.6 Indication of the contact position ................................................................... 49

8.1.7 Additional requirements for equipment suitable for isolation ........................... 49

8.1.8 Terminals ...................................................................................................... 49

8.1.9 Additional requirements for equipment provided with a neutral pole ............... 49

8.1.10 Provisions for protective earthing ................................................................... 49

8.1.11 Enclosures for equipment .............................................................................. 49

8.1.12 Degrees of protection of enclosed equipment ................................................ 50

8.1.13 Conduit pull-out, torque and bending with metallic conduits ........................... 50

8.1.14 Limited energy source ................................................................................... 50

8.1.15 Stored charge energy circuit .......................................................................... 52

8.1.16 Fault and abnormal conditions ....................................................................... 52

8.1.17 Short-circuit and overload protection of ports ................................................. 53

8.2 Performance requirements .................................................................................... 53

8.2.1 Operating conditions ...................................................................................... 53

8.2.2 Temperature-rise ........................................................................................... 59

8.2.3 Dielectric properties ....................................................................................... 61

8.2.4 Normal load and overload performance requirements .................................... 62

8.2.5 Co-ordination with short-circuit protective devices ......................................... 68

8.3 Electromagnetic compatibility (EMC) ..................................................................... 71

8.3.1 General ......................................................................................................... 71

8.3.2 Immunity ........................................................................................................ 71

8.3.3 Emission ........................................................................................................ 72

9 Tests ............................................................................................................................. 72

9.1 Kinds of test .......................................................................................................... 72

9.1.1 General ......................................................................................................... 72

9.1.2 Type tests ...................................................................................................... 73

9.1.3 Routine tests ................................................................................................. 73

---------------------- Page: 11 ----------------------
– 4 – IEC 60947-4-1:2018 © IEC 2018

9.1.4 Sampling tests ............................................................................................... 73

9.1.5 Special tests .................................................................................................. 74

9.2 Compliance with constructional requirements ........................................................ 75

9.2.1 General ......................................................................................................... 75

9.2.2 Electrical performance of screwless-type clamping units ................................ 75

9.2.3 Ageing test for screwless-type clamping units ................................................ 75

9.2.4 Limited energy source test ............................................................................. 76

9.2.5 Breakdown of components ............................................................................. 76

9.3 Compliance with performance requirements .......................................................... 77

9.3.1 Test sequences ............................................................................................. 77

9.3.2 General test conditions .................................................................................. 78

9.3.3 Performance under no load, normal load and overload conditions .................. 78

9.3.4 Performance under short-circuit conditions .................................................... 90

9.3.5 Overload current withstand capability of contactors ....................................... 95

9.3.6 Routine tests and sampling tests ................................................................... 95

9.4 EMC tests ............................................................................................................. 97

9.4.1 General ......................................................................................................... 97

9.4.2 Immunity ........................................................................................................ 97

9.4.3 Emission ........................................................................................................ 99

Annex A
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