EN IEC 60947-3:2021

Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units

IEC 60947-3:2020 applies to switches, disconnectors, switch-disconnectors and fuse-combination units and their dedicated accessories to be used in distribution circuits and motor circuits of which the rated voltage does not exceed 1 000 V AC or 1 500 V DC. This fourth edition cancels and replaces the third edition published in 2008, Amendment 1:2012 and Amendment 2:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:  
addition of critical load current tests for DC switches (see 9.3.9);
addition of requirements for a conditional short-circuit rating for disconnectors, switches, and switch-disconnectors protected by circuit-breakers (see 9.3.7.2);
addition of new categories for high-efficiency motors switching (see Annex A);
addition of new Annex E for connection to aluminium conductors;
addition of new Annex F for power losses measurement.

Niederspannungsschaltgeräte - Teil 3: Lastschalter, Trennschalter, Lasttrennschalter und Schalter-Sicherungs-Einheiten

Appareillage à basse tension - Partie 3: Interrupteurs, sectionneurs, interrupteurs-sectionneurs et combinés-fusibles

L’IEC 60947-3:2020 s’applique à l’appareillage suivant: interrupteurs, sectionneurs, interrupteurs-sectionneurs, combinés-fusibles et leurs accessoires dédiés, destinés à être insérés dans des circuits de distribution et des circuits de moteurs dont la tension assignée est inférieure ou égale à 1 000 V en courant alternatif ou à 1 500 V en courant continu. Cette quatrième édition annule et remplace la troisième édition parue en 2008, l’Amendement 1:2012 et l’Amendement 2:2015. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:  
ajout d'essais de courant critique de charge pour interrupteurs à courant continu (voir 9.3.9);
ajout d’exigences relatives à la caractéristique assignée de court-circuit conditionnel pour les sectionneurs, les interrupteurs et les interrupteurs-sectionneurs protégés par des disjoncteurs (voir 9.3.7.2);
ajout de nouvelles catégories pour commande de moteurs à haut rendement (voir Annexe A);
ajout d’une nouvelle Annexe E pour le raccordement à des conducteurs en aluminium;
ajout d’une nouvelle Annexe F pour la mesure des puissances dissipées.

Nizkonapetostne stikalne in krmilne naprave - 3. del: Stikala, ločilniki, ločilna stikala in stikalni aparati z varovalkami (IEC 60947-3:2020)

Ta del standarda IEC 60947 se uporablja za stikala, ločilnike, ločilna stikala in stikalne aparate z varovalkami
ter njihov namenski pribor, ki so namenjeni uporabi v razdelilnih tokokrogih in motorskih tokokrogih, pri čemer nazivna napetost ne presega 1000 V izmenične napetosti ali 1500 V enosmerne napetosti.
OPOMBA 1: Pribor vključuje vzajemno povezane enote, razširjene priključke, notranje tuljave, pomožne kontakte, motorni pogon in druge dodatke, ki so na voljo za izbiro skupaj z osnovno enoto.
Ta dokument se ne uporablja za opremo, ki spada na področje uporabe standardov IEC 60947-2, IEC 60947-4-1 in IEC 60947-5-1.
Posebne zahteve za stikala, ločilnike, ločilna stikala in stikalne aparate z varovalkami, ki se uporabljajo v fotonapetostnih (PV) aplikacijah pri enosmernem toku, so podane v dodatku D.
Posebne zahteve za nizkonapetostne stikalne naprave, namenjene za povezovanje prevodnikov iz aluminija, so podane v dodatku A.
Navodila za merjenje izgube moči so podana v dodatku F.
Ta dokument ne vključuje dodatnih zahtev, potrebnih za električne naprave za eksplozivne plinske atmosfere.
OPOMBA 2: Glede na njegovo zasnovo lahko stikalo (ali ločilnik) imenujemo »vrtljivo stikalo (ločilnik)«, »odmično stikalo (ločilnik)«, »nožasto stikalo (ločilnik)« itd.
OPOMBA 3: V tem dokumentu se izraz »stikalo« uporablja tudi za naprave, ki se v francoščini imenujejo »commutateurs« ter so namenjene spreminjanju povezav med vezji in med drugim zamenjavi dela vezja z drugim delom.
OPOMBA 4: Na splošno se v tem dokumentu stikala, ločilniki, ločilna stikala in stikalni aparati z varovalkami imenujejo »oprema«.
Cilj tega dokumenta je navesti:
a) značilnosti opreme;
b) pogoje, ki veljajo za opremo v zvezi z:
1) delovanjem in vedenjem v običajnih pogojih;
2) delovanjem in vedenjem v primeru navedenih izrednih razmer (npr. kratek stik);
3) dielektričnimi lastnostmi;
c) preskuse, s katerimi se potrdi, da so bili ti pogoji in metode izvajanja teh preskusov izpolnjeni;
d) ustrezne informacije o označevanju opreme oziroma informacije, ki jih da na voljo proizvajalec (npr. v katalogu).
Posamezne točke, pri katerih je potreben dogovor med uporabnikom in proizvajalcem, so opredeljene v dodatku B.

General Information

• Status: Published
• Publication Date: 18-Feb-2021
• ICS: 29.120.40 - Switches
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• Technical Committee: CLC/TC 121A - Low-voltage switchgear and controlgear
• Drafting Committee: IEC/SC 121A - Low-voltage switchgear and controlgear
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 19-Feb-2021
• Completion Date: 19-Feb-2021
• Directive: 2014/30/EU - 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 (recast)
• Directive: 2014/35/EU - Directive 2014/35/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 the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Mandate: M/552 - [C(2016) 7641 final] Standardisation request 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
• Ref Project: SIST EN IEC 60947-3:2021 - Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units (IEC 60947-3:2020)

Relations

• Replaces: EN 60947-3:2009 - Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
• Effective Date: 23-Jan-2023
• Replaces: EN 60947-3:2009/A1:2012 - Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
• Effective Date: 23-Jan-2023
• Replaces: EN 60947-3:2009/A2:2015 - Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
• Effective Date: 23-Feb-2021
• Corrected By: EN IEC 60947-3:2021/AC:2021-11 - Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
• Effective Date: 09-Nov-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 60947-3:2021
01-maj-2021
Nadomešča:
SIST EN 60947-3:2009
SIST EN 60947-3:2009/A1:2012
SIST EN 60947-3:2009/A2:2016
Nizkonapetostne stikalne in krmilne naprave - 3. del: Stikala, ločilniki, ločilna
stikala in stikalni aparati z varovalkami (IEC 60947-3:2020)
Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-
disconnectors and fuse-combination units (IEC 60947-3:2020)
Niederspannungsschaltgeräte - Teil 3: Lastschalter, Trennschalter, Lasttrennschalter und
Schalter-Sicherungs-Einheiten (IEC 60947-3:2020)
Appareillage à basse tension - Partie 3: Interrupteurs, sectionneurs, interrupteurs-
sectionneurs et combinés-fusibles (IEC 60947-3:2020)
Ta slovenski standard je istoveten z: EN IEC 60947-3:2021
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN IEC 60947-3:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60947-3:2021

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SIST EN IEC 60947-3:2021


EUROPEAN STANDARD EN IEC 60947-3

NORME EUROPÉENNE

EUROPÄISCHE NORM
February 2021
ICS 29.120.40; 29.130.20 Supersedes EN 60947-3:2009 and all of its amendments
and corrigenda (if any)
English Version
Low-voltage switchgear and controlgear - Part 3: Switches,
disconnectors, switch-disconnectors and fuse-combination units
(IEC 60947-3:2020)
Appareillage à basse tension - Partie 3: Interrupteurs, Niederspannungsschaltgeräte - Teil 3: Lastschalter,
sectionneurs, interrupteurs-sectionneurs et combinés- Trennschalter, Lasttrennschalter und Schalter-Sicherungs-
fusibles Einheiten
(IEC 60947-3:2020) (IEC 60947-3:2020)
This European Standard was approved by CENELEC on 2020-05-27. 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60947-3:2021 E

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SIST EN IEC 60947-3:2021
EN IEC 60947-3:2021 (E)
European foreword
The text of document 121A/340/FDIS, future edition 4 of IEC 60947-3, 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 60947-3:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021–08-19
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024–02-19
document have to be withdrawn
This document supersedes EN 60947-3:2009 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 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 Directive(s).
For the relationship with EU Directive(s) see informative Annexes ZZA and ZZB, which is an integral
part of this document.
Endorsement notice
The text of the International Standard IEC 60947-3:2020 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:
I
...

SLOVENSKI STANDARD
SIST EN IEC 60947-3:2021
01-maj-2021
Nadomešča:
SIST EN 60947-3:2009
SIST EN 60947-3:2009/A1:2012
SIST EN 60947-3:2009/A2:2016
Nizkonapetostne stikalne in krmilne naprave - 3. del: Stikala, ločilniki, ločilna
stikala in stikalni aparati z varovalkami (IEC 60947-3:2020)
Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-
disconnectors and fuse-combination units (IEC 60947-3:2020)
Niederspannungsschaltgeräte - Teil 3: Lastschalter, Trennschalter, Lasttrennschalter
und Schalter-Sicherungs-Einheiten (IEC 60947-3:2020)
Appareillage à basse tension - Partie 3: Interrupteurs, sectionneurs, interrupteurs-
sectionneurs et combinés-fusibles (IEC 60947-3:2020)
Ta slovenski standard je istoveten z: EN IEC 60947-3:2021
ICS:
29.120.40 Stikala Switches
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN IEC 60947-3:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 60947-3:2021

---------------------- Page: 2 ----------------------
SIST EN IEC 60947-3:2021


EUROPEAN STANDARD EN IEC 60947-3

NORME EUROPÉENNE

EUROPÄISCHE NORM
February 2021
ICS 29.120.40; 29.130.20 Supersedes EN 60947-3:2009 and all of its amendments
and corrigenda (if any)
English Version
Low-voltage switchgear and controlgear - Part 3: Switches,
disconnectors, switch-disconnectors and fuse-combination units
(IEC 60947-3:2020)
Appareillage à basse tension - Partie 3: Interrupteurs, Niederspannungsschaltgeräte - Teil 3: Lastschalter,
sectionneurs, interrupteurs-sectionneurs et combinés- Trennschalter, Lasttrennschalter und Schalter-Sicherungs-
fusibles Einheiten
(IEC 60947-3:2020) (IEC 60947-3:2020)
This European Standard was approved by CENELEC on 2020-05-27. 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60947-3:2021 E

---------------------- Page: 3 ----------------------
SIST EN IEC 60947-3:2021
EN IEC 60947-3:2021 (E)
European foreword
The text of document 121A/340/FDIS, future edition 4 of IEC 60947-3, 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 60947-3:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021–08-19
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024–02-19
document have to be withdrawn
This document supersedes EN 60947-3:2009 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 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 Directive(s).
For the relationship with EU Directive(s) see informative Annexes ZZA and ZZB, which is an integral
part of this document.
Endorsement notice
The text of the International Standard IEC 60947-3:2020 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 t
...