EN 60940:2015
(Main)Guidance information on the application of capacitors, resistors, inductors and complete filter units for electromagnetic interference suppression
Guidance information on the application of capacitors, resistors, inductors and complete filter units for electromagnetic interference suppression
IEC 60940:2015 provides guidance applicable to information on application of capacitors, resistors, inductors, and complete filter units for electromagnetic interference suppression. This second edition cancels and replaces the first edition published in 1988. This second edition is a result of maintenance activities related to the previous edition. All changes that have been agreed upon can be categorized as minor revisions.
Grundlagen für die Anwendung von Kondensatoren, Widerständen, Drosseln und vollständigen Filtereinheiten zur Unterdrückung elektromagnetischer Störungen
Guide d'emploi des condensateurs, résistances, inductances et filtres complets d'antiparasitage
L'IEC 60940:2015 constitue un guide d'emploi des condensateurs, résistances, inductances et filtres complets d'antiparasitage. Cette deuxième édition annule et remplace la première édition parue en 1988. Cette deuxième édition est le résultat des activités de maintenance relatives à l'édition précédente. Toutes les modifications ayant fait l'objet d'un accord peuvent être considérées comme des révisions mineures.
Navodilo za uporabo kondenzatorjev, uporov, tuljav in celotnih filtrskih enot za dušenje elektromagnetnih motenj
Ta mednarodni standard nudi navodila za uporabo kondenzatorjev, uporov, tuljav in celotnih filtrskih enot za dušenje elektromagnetnih motenj.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2015
Navodilo za uporabo kondenzatorjev, uporov, tuljav in celotnih filtrskih enot za
dušenje elektromagnetnih motenj
Guidance information on the application of capacitors, resistors, inductors and complete
filter units for electromagnetic interference suppression
Grundlagen für die Anwendung von Kondensatoren, Widerständen, Drosseln und
vollständigen Filtereinheiten zur Unterdrückung elektromagnetischer Störungen
Guide d'emploi des condensateurs, résistances, inductances et filtres complets
d'antiparasitage
Ta slovenski standard je istoveten z: EN 60940:2015
ICS:
31.020 Elektronske komponente na Electronic components in
splošno general
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 60940
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 33.100
English Version
Guidance information on the application of capacitors, resistors,
inductors and complete filter units for electromagnetic
interference suppression
(IEC 60940:2015)
Guide d'emploi des condensateurs, résistances, Grundlagen für die Anwendung von Kondensatoren,
inductances et filtres complets d'antiparasitage Widerständen, Drosseln und vollständigen Filtereinheiten
(IEC 60940:2015) zur Unterdrückung elektromagnetischer Störungen
(IEC 60940:2015)
This European Standard was approved by CENELEC on 2015-04-14. 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, 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 60940:2015 E
Foreword
The text of document 40/2337/FDIS, future edition 2 of IEC 60940, prepared by IEC/TC 40
"Capacitors and resistors for electronic equipment" was submitted to the IEC-CENELEC parallel vote
and approved by CENELEC as EN 60940:2015.
The following dates are fixed:
(dop) 2016-01-14
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2018-04-14
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.
Endorsement notice
The text of the International Standard IEC 60940:2015 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 60068-2-78 NOTE Harmonized as EN 60068-2-78.
IEC 60204-1 NOTE Harmonized as EN 60204-1.
IEC 60384-14-1 NOTE Harmonized as EN 60384-14-1.
IEC 60384-14-2 NOTE Harmonized as EN 60384-14-2.
IEC 60384-14-3 NOTE Harmonized as EN 60384-14-3.
IEC 60664-1 NOTE Harmonized as EN 60664-1.
IEC 60938-1 NOTE Harmonized as EN 60938-1.
IEC 60938-2 NOTE Harmonized as EN 60938-2.
IEC 60938-2-1 NOTE Harmonized as EN 60938-2-1.
IEC 60938-2-2 NOTE Harmonized as EN 60938-2-2.
IEC 60939-1 NOTE Harmonized as EN 60939-1.
IEC 60939-2 NOTE Harmonized as EN 60939-2.
IEC 60939-2-1 NOTE Harmonized as EN 60939-2-1.
IEC 60939-2-2 NOTE Harmonized as EN 60939-2-2.
IEC 60950-1 NOTE Harmonized as EN 60950-1.
IEC 62368-1 NOTE Harmonized as EN 62368-1.
CISPR 11 NOTE Harmonized as EN 55011.
CISPR 17 NOTE Harmonized as EN 55017.
- 3 - EN 60940:2015
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 60335-1 - Household and similar electrical EN 60335-1 -
appliances - Safety -
Part 1: General requirements
IEC 60384-14 - Fixed capacitors for use in electronic EN 60384-14 -
equipment -
Part 14: Sectional specification - Fixed
capacitors for electromagnetic interference
suppression and connection to the supply
mains
IEC 60940 ®
Edition 2.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Guidance information on the application of capacitors, resistors, inductors and
complete filter units for electromagnetic interference suppression
Guide d'emploi des condensateurs, résistances, inductances et filtres complets
d'antiparasitage
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100 ISBN 978-2-8322-2290-4
– 2 – IEC 60940:2015 IEC 2015
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Electromagnetic and Radio frequency interference suppression (EMI/RFI) . 5
3.1 General . 5
3.2 Limits of interference . 6
4 Classification of suppression components . 6
4.1 Suppression components . 6
4.2 Capacitors . 8
4.3 Inductors . 8
4.4 Filters . 8
5 Choice of ratings for specific applications . 8
5.1 Voltage . 8
5.2 Current . 9
5.3 Environmental classification (climatic category) . 9
5.4 Insertion loss . 9
6 Connection of suppression components . 9
7 Safety aspects . 10
7.1 Class X and Y capacitors . 10
7.2 Leakage current . 11
7.3 Mounting of radio interference suppression components in equipment and
appliances . 11
7.4 Electrical shock hazard protection testing . 11
Bibliography . 12
Figure 1 – Example use of suppression components in EMI filter . 7
IEC 60940:2015 IEC 2015 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
GUIDANCE INFORMATION ON THE APPLICATION OF CAPACITORS,
RESISTORS, INDUCTORS AND COMPLETE FILTER UNITS FOR
ELECTROMAGNETIC INTERFERENCE SUPPRESSION
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60940 has been prepared by IEC technical committee 40:
Capacitors and resistors for electronic equipment.
This second edition cancels and replaces the first edition published in 1988. This second
edition is a result of maintenance activities related to the previous edition. All changes that
have been agreed upon can be categorized as minor revisions.
The text of this standard is based on the following documents:
FDIS Report on voting
40/2337/FDIS 40/2362/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
– 4 – IEC 60940:2015 IEC 2015
The c
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