SIST EN IEC 61071:2025

Capacitors for power electronics (IEC 61071:2017)

NEW! IEC 61071:2017 is available as IEC 61071:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61071:2017 applies to capacitors for power electronics applications. The operating frequency of the systems in which these capacitors are used is usually up to 15 kHz, while the pulse frequencies may be up to 5 to 10 times the operating frequency. The document distinguishes between AC and DC capacitors which are considered as components when mounted in enclosures. This document covers an extremely wide range of capacitor technologies for numerous applications, e.g. overvoltage protection, DC and filtering, switching circuits, energy storage, auxiliary inverters, etc. This second edition cancels and replaces the first edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Introduction of new terms and definitions;
- clarifications for surge discharge test;
- indications for measuring procedure during thermal stability test;
- clarifications for self-healing test;
- clarifications for endurance test;
- clarifications for destruction test;
- update of normative references;
- general editorial review.

Kondensatoren der Leistungselektronik (IEC 61071:2017)

Condensateurs pour électronique de puissance (IEC 61071:2017)

NEW!IEC 61071:2017 est disponible sous forme de IEC 61071:2017 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
IEC 61071:2017 s’applique aux condensateurs pour les applications de l’électronique de puissance. La fréquence de fonctionnement des systèmes utilisant ces condensateurs atteint généralement 15 kHz, mais les fréquences d'impulsions peuvent atteindre 5 à 10 fois la fréquence de fonctionnement. Une distinction est faite dans le présent document entre les condensateurs à courant alternatif et les condensateurs à courant continu qui sont considérés comme des composants lorsqu’ils sont montés dans un boîtier fermé. Le présent document couvre une très grande variété de technologies de condensateurs pour répondre à de nombreuses applications, par exemple la protection contre les surtensions, le filtrage à courant continu et à courant alternatif, les circuits de commutation, le stockage d’énergie à courant continu, les inverseurs auxiliaires, etc Cette deuxième édition annule et remplace la première édition publiée en 2007. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- introduction de nouveaux termes et définitions;
- clarifications des essais de décharge;
- indications sur la procédure de mesure pendant l'essai de stabilité thermique;
- clarifications des essais d'autorégénération;
- clarifications des essais d'endurance;
- clarifications des essais de destruction;
- mise à jour des références normatives;
- révision éditoriale générale
Mots clés: applications de l’électronique de puissance

Kondenzatorji za močnostno elektroniko (IEC 61071:2017)

General Information

• Status: Published
• Publication Date: 31-Aug-2025
• ICS: 31.060.70 - Power capacitors
• Technical Committee: I09 - Imaginarni 09
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 26-Aug-2025
• Due Date: 31-Oct-2025
• Completion Date: 01-Sep-2025
• 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
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: EN IEC 61071:2025 - Capacitors for power electronics

Relations

• Replaces: SIST EN 61071:2007 - Capacitors for power electronics
• Effective Date: 01-Oct-2025

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2025
Nadomešča:
SIST EN 61071:2007
Kondenzatorji za močnostno elektroniko (IEC 61071:2017)
Capacitors for power electronics (IEC 61071:2017)
Kondensatoren der Leistungselektronik (IEC 61071:2017)
Condensateurs pour électronique de puissance (IEC 61071:2017)
Ta slovenski standard je istoveten z: EN IEC 61071:2025
ICS:
31.060.70 Močnostni kondenzatorji Power capacitors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61071

NORME EUROPÉENNE
EUROPÄISCHE NORM August 2025
ICS 31.060.70 Supersedes EN 61071:2007
English Version
Capacitors for power electronics
(IEC 61071:2017)
Condensateurs pour électronique de puissance Kondensatoren der Leistungselektronik
(IEC 61071:2017) (IEC 61071:2017)
This European Standard was approved by CENELEC on 2024-10-16. 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,
Türkiye 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
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61071:2025 E
European foreword
The text of document 33/610/FDIS, future edition 2 of IEC 61071, prepared by TC 33 "Power
capacitors and their applications" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 61071:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-08-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-08-31
document have to be withdrawn
This document supersedes EN 61071:2007 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61071:2017 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 standard indicated:
IEC 60146-1-1:2009 NOTE Approved as EN 60146-1-1:2010 (not modified)
IEC 61287-1:2014 NOTE Approved as EN 61287-1:2014 (not modified)
IEC 60110-1:1998 NOTE Approved as EN 60110-1:1998 (not modified)
IEC 60143 (series) NOTE Approved as EN IEC 60143 (series)
IEC 60252-1:2010 NOTE Approved as EN 60252-1:2011 (not modified)
IEC 60252-1:2010/A1:2013 NOTE Approved as EN 60252-1:2011/A1:2013 (not modified)
IEC 60358-1:2012 NOTE Approved as EN 60358-1:2012 (not modified)
IEC 60384-14:2013 NOTE Approved as EN 60384-14:2013 (not modified)
IEC 60831-1:2014 NOTE Approved as EN 60831-1:2014 (not modified)
IEC 60831-2:2014 NOTE Approved as EN 60831-2:2014 (not modified)
IEC 60871-1:2014 NOTE Approved as EN 60871-1:2014 (not modified)
IEC 60931-1:1996 NOTE Approved as EN 60931-1:1996 (not modified)
IEC 60931-2:1995 NOTE Approved as EN 60931-2:1996 (not modified)
IEC 61048:2006 NOTE Approved as EN 61048:2006 (not modified)
IEC 61048:2006/A1:2015 NOTE Approved as EN 61048:2006/A1:2016 (not modified)
IEC 61270-1:1996 NOTE Approved as EN 61270-1:1996 (not modified)
IEC 61881-1:2010 NOTE Approved as EN 61881-1:2011 (not modified)
IEC 61881-2:2012 NOTE Approved as EN 61881-2:2012 (not modified)
IEC 61881-3:2012 NOTE Approved as EN 61881-3:2012 (not modified)
IEC 61881-3:2012/A1:2013 NOTE Approved as EN 61881-3:2012/A1:2013 (not modified)
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-6 - Environmental testing - Part 2-6: Tests - Test EN 60068-2-6 -
Fc: Vibration (sinusoidal)
IEC 60068-2-14 - Environmental testing - Part 2-14: Tests - Test EN IEC 60068-2-14 -
N: Change of temperature
IEC 60068-2-20 - Environmental testing - Part 2-20: Tests - Test EN IEC 60068-2-20 -
Ta and Tb: Test methods for solderability and
resistance to soldering heat of devices with
leads
IEC 60068-2-21 - Environmental testing - Part 2-21: Tests - Test EN IEC 60068-2-21 -
U: Robustness of terminations and integral
mounting devices
IEC 60068-2-78 - Environmental testing - Part 2-78: Tests - Test EN 60068-2-78 -
Cab: Damp heat, steady state
Low-voltage fuses - Part 1: General
IEC 60269-1 - EN IEC 60269-1 -
requirements
IEC 60664-1 - Insulation coordination for equipment within
EN IEC 60664-1 -
low-voltage supply systems - Part 1:
Principles, requirements and tests
IEC 60695-2-11 - Fire hazard testing - Part 2-11: Glowing/hot- EN IEC 60695-2-11 -
wire based test methods - Glow-wire
flammability test method for end products
(GWEPT)
IEC 60695-2-12 - Fire hazard testing - Part 2-12: Glowing/hot- EN IEC 60695-2-12 -
wire based test methods - Glow-wire
flammability index (GWFI) test method for
materials
IEC 60947-1 2007 Low-voltage switchgear and controlgear - Part - -
1: General rules
IEC 61071 ®
Edition 2.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Capacitors for power electronics

Condensateurs pour électronique de puissance

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.70 ISBN 978-2-8322-4647-4

– 2 – IEC 61071:2017 © IEC 2017
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Service conditions . 14
4.1 Normal service conditions . 14
4.1.1 General . 14
4.1.2 Altitude . 14
4.1.3 Operating temperature (θ ) . 14
max
4.1.4 Operating temperature with forced cooling . 14
4.2 Unusual service conditions . 14
5 Quality requirements and tests . 15
5.1 Test requirements . 15
5.1.1 General . 15
5.1.2 Test conditions . 15
5.2 Classification of tests . 15
5.2.1 General . 15
5.2.2 Routine tests . 15
5.2.3 Type tests . 16
5.3 Capacitance and tan δ measurements (routine test) . 16
5.3.1 Measuring procedure . 16
5.3.2 Capacitance tolerances . 17
5.3.3 Loss requirements (tan δ) . 17
5.4 Measurement of the tangent of the loss angle (tan δ) of a capacitor (type test)
............................................................................................................................. 17
5.4.1 Measurements . 17
5.4.2 Loss requirements . 17
5.5 Voltage test between terminals . 17
5.5.1 General . 17
5.5.2 Routine test . 17
5.5.3 Type test . 18
5.6 AC voltage test between terminals and case . 18
5.6.1 Routine test . 18
5.6.2 Type test . 18
5.7 Test of internal discharge device . 19
5.8 Sealing test . 19
5.9 Surge discharge test . 19
5.10 Thermal stability test . 20
5.10.1 General . 20
5.10.2 Measuring procedure . 20
5.11 Self-healing test . 21
5.12 Resonance frequency measurement . 21
5.13 Environmental testing . 21
5.13.1 Change of temperature . 21
5.13.2 Damp heat, steady state . 22
5.14 Mechanical testing . 22
5.14.1 Mechanical tests of terminals . 22

IEC 61071:2017 © IEC 2017 – 3 –
5.14.2 External inspection . 22
5.14.3 Vibration and shocks . 22
5.15 Endurance test . 23
5.15.1 General
...