EN 60947-3:2009/A2:2015

SLOVENSKI STANDARD
01-julij-2016
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Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-
disconnectors and fuse-combination units
Niederspannungsschaltgeräte - Teil 3: Lastschalter, Trennschalter, Lasttrennschalter und
Schalter-Sicherungs-Einheiten
Appareillage à basse tension - Partie 3: Interrupteurs, sectionneurs, interrupteurs-
sectionneurs et combinés-fusibles
Ta slovenski standard je istoveten z: EN 60947-3:2009/A2:2015
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60947-3:2009/A2

NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2015
ICS 29.120.40; 29.130.20
English Version
Low-voltage switchgear and controlgear - Part 3: Switches,
disconnectors, switch-disconnectors and fuse-combination units
(IEC 60947-3:2008/A2:2015)
Appareillage à basse tension - Partie 3: Interrupteurs, Niederspannungsschaltgeräte - Teil 3: Lastschalter,
sectionneurs, interrupteurs-sectionneurs et combinés- Trennschalter, Lasttrennschalter und Schalter-Sicherungs-
fusibles Einheiten
(IEC 60947-3:2008/A2:2015) (IEC 60947-3:2008/A2:2015)
This amendment A2 modifies the European Standard EN 60947-3:2009; it was approved by CENELEC on 2015-08-31. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60947-3:2009/A2:2015 E

European foreword
The text of document 121A/42/FDIS, future IEC 60947-3:2008/A2, 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
The following dates are fixed:
• latest date by which the document has to be implemented at (dop) 2016-05-31
national level by publication of an identical national
standard or by endorsement
(dow) 2018-08-31
• latest date by which the national standards conflicting with
the document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment
Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC).
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 Annex ZZ, which is an integral part of this
document.
Endorsement notice
The text of the International Standard IEC 60947-3:2008/A2:2015 was approved by CENELEC as a
European Standard without any modification.
In the Bibliography of EN 60947-3:2009, the following notes have to be added for the standards indicated:
IEC 60364-7-712:2002 NOTE Harmonized as HD 60364-7-712:2005 (not modified).
IEC 60664-1 NOTE Harmonized as EN 60664-1.
Replace Annex ZA by the following:
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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 60050-441 1984 International Electrotechnical Vocabulary - -
(IEV) -
+ A1 2000 - -
Chapter 441: Switchgear, controlgear and
fuses
IEC 60269 series Low-voltage fuses EN 60269 series
HD 60269
CLC/TR 60269
IEC 60410 1973 Sampling plans and procedures for - -
inspection by attributes
IEC 60417-DB 2002 Graphical symbols for use on equipment - -
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 2006 Low-voltage switchgear and controlgear - EN 60947-2 2006
Part 2: Circuit-breakers
+ A1 2009 + A1 2009
+ A2 2013 + A2 2013
IEC 60947-4-1 2009 Low-voltage switchgear and controlgear - EN 60947-4-1 2010
Part 4-1: Contactors and motor-starters -
+ A1 2012 + A1 2012
Electromechanical contactors and motor-
starters
IEC 60947-5-1 2003 Low-voltage switchgear and controlgear - EN 60947-5-1 2004
Part 5-1: Control circuit devices and
- -  + corrigendum Nov. 2004
switching elements - Electromechanical
- -  control circuit devices + corrigendum Jul. 2005
+ A1 2009 + A1 2009
Publication Year Title EN/HD Year
IEC 61000-4-2 2008 Electromagnetic compatibility (EMC) - EN 61000-4-2 2009
Part 4-2: Testing and measurement
techniques - Electrostatic discharge
immunity test
IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) - EN 61000-4-3 2006
Part 4-3: Testing and measurement
+ A1 2007 + A1 2008
techniques - Radiated, radio-frequency,
- - electromagnetic field immunity test + IS 2009
+ A2 2010 + A2 2010
IEC 61000-4-4 2012 Electromagnetic compatibility (EMC) - EN 61000-4-4 2012
Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst
immunity test
IEC 61000-4-5 2014 Electromagnetic compatibility (EMC) - EN 61000-4-5 2014
Part 4-5: Testing and measurement
techniques - Surge immunity test
IEC 61000-4-6 2013 Electromagnetic compatibility (EMC) - EN 61000-4-6 2014
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields
CISPR 11 (mod) 2009 Industrial, scientific and medical EN 55011 2009
equipment - Radio-frequency disturbance
+ A1 2010 + A1 2010
characteristics - Limits and methods of
measurement
CISPR 22 (mod) 2008 Information technology equipment - Radio EN 55022 2010
disturbance characteristics - Limits and
- -  + AC 2011
methods of measurement
Replace Annex ZZ by the following:
Annex ZZ
(informative)
Coverage of Essential Requirements of EU Directives
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers
protection requirements of Annex I Article 1 of the EU Directive 2004/108/EC.
Compliance with this standard provides presumption of conformity with the specified essential
requirements of the Directives concerned.
NOTE: Other requirements and other EU Directives may be applicable to the products falling within the scope of
this standard.
IEC 60947-3 ®
Edition 3.0 2015-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Low-voltage switchgear and controlgear –

Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination

units
Appareillage à basse tension –

Partie 3: Interrupteurs, sectionneurs, interrupteurs-sectionneurs et combinés-

fusibles
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.40, 29.130.20 ISBN 978-2-8322-2718-3

– 2 – IEC 60947-3:2008/AMD2:2015
© IEC 2015
FOREWORD
This amendment has been prepared by subcommittee 121A: Low-voltage switchgear and
controlgear, of IEC technical committee 121: Switchgear and controlgear and their assemblies
for low voltage.
The text of this amendment is based on the following documents:
FDIS Report on voting
121A/42/FDIS 121A/46/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1 General
1.2 Normative references
Replace the existing subclause by the following new subclause:
The following referenced documents are indispensable for the application 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.
IEC 60050-441:1984, International Electrotechnical Vocabulary (IEV) – Chapter 441
Switchgear, controlgear and fuses
IEC 60050-441:1984/AMD1:2000
IEC 60269 (all parts), Low-voltage fuses
IEC 60410:1973, Sampling plans and procedures for inspection by attributes
IEC 60417-DB:2002 , Graphical symbols for use on equipment
IEC 60947-1:2007, Low-voltage switchgear and controlgear – Part 1: General rules
IEC 60947-1:2007/AMD1:2010
IEC 60947-1:2007/AMD2:2014
_____________
“DB” refers to the IEC on-line database.

IEC 60947-3:2008/AMD2:2015 – 3 –
© IEC 2015
IEC 60947-2:2006, Low-voltage switchgear and controlgear – Part 2: Circuit-breakers
IEC 60947-2:2006/AMD1:2009
IEC 60947-2:2006/AMD2:2013
IEC 60947-4-1:2009, Low-voltage switchgear and controlgear – Part 4-1: Contactors and
motor-starters – Electromechanical contactors and motor-starters
IEC 60947-4-1:2009/AMD1:2012
IEC 60947-5-1:2003, Low-voltage switchgear and controlgear – Part 5-1: Control circuit
devices and switching elements – Electromechanical control circuit devices
IEC 60947-5-1:2003/AMD1:2009
IEC 61000-4-2:2008, Electromagnetic compatibility (EMC) – Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
IEC 61000-4-3:2006, Electromagnetic compatibility (EMC) – Part 4-3: Testing and
measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-3:2006/AMD1:2007
IEC 61000-4-3:2006/AMD2:2010
IEC 61000-4-4:2012, Electromagnetic compatibility (EMC) – Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5:2014, Electromagnetic compatibility (EMC) – Part 4-5: Testing and
measurement techniques – Surge immunity test
IEC 61000-4-6:2013, Electromagnetic compatibility (EMC) – Part 4-6: Testing and
measurement techniques – Immunity to conducted disturbances, induced by radio-frequency
fields
CISPR 11:2009, Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
CISPR 11:2009/AMD1:2010
CISPR 22:2008, Information technology equipment – Radio disturbance characteristics –
Limits and methods of measurement
2 Terms and definitions
Replace the title and text of the existing clause, modified by Amendment 1, by the following
new title and text:
2 Terms, definitions and index of terms
2.1 General
For the purposes of this document, the terms and definitions given in IEC 60050-441 and
IEC 60947-1 as well as the following apply.

– 4 – IEC 60947-3:2008/AMD2:2015
© IEC 2015
2.2 Alphabetical index of terms
Reference
D
Disconnector . 2.3.1
Disconnector-fuse . 2.3.5
Disconnector-fuse single opening . 2.3.5.1
Disconnector-fuse double opening .
...