Safety of transformers, reactors, power supply units and combinations thereof - EMC requirements (IEC 62041:2010)

IEC 62041:2010 applies to transformers, reactors, power supply units and combinations thereof covered by the IEC 61558 series of standards. This standard deals with the electromagnetic compatibility requirements for emission and immunity within the frequency range 0 Hz - 400 GHz. No measurement needs to be performed at frequencies where no requirement is specified. This second edition cancels and replaces the first edition published in 2003. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:  - the frequency range for tests according to IEC 61000-4-3 has been extended above 1 GHz according to technologies used in this frequency area;  - the testing requirements according to IEC 61000-4-11 have been amended significantly;  - the inclusion of a clause on tests in series production;   - the inclusion of a new clause on measurement uncertainly, and   - the inclusion of requirements on DC power ports and telecommunication ports.  It has the status of a product family EMC standard in accordance with IEC Guide 107:2009, Electromagnetic compatibility - Guide to the drafting of electromagnetic compatibility publications. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months from the date of publication. In the meantime, the previous edition can still be ordered by contacting your local IEC member National Committee or the IEC Central Office.

Sicherheit von Transformatoren, Drosseln, Netzgeräten und entsprechenden Kombinationen - EMV-Anforderungen (IEC 62041:2010)

Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et des combinaisons de ces éléments - Exigences CEM (CEI 62041:2010)

La CEI 62041:2010 s'applique aux transformateurs, bobines d'inductance, blocs d'alimentation et aux combinaisons de ces éléments couverts par la série de normes CEI 61558. La présente norme traite des exigences de compatibilité électromagnétique pour l'émission et l'immunité dans la bande de fréquences 0 Hz - 400 GHz. Aucune mesure n'est nécessaire aux fréquences pour lesquelles aucune exigence n'est spécifiée. Cette deuxième édition annule et remplace la première édition parue en 2003. Elle constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:  - la plage de fréquences pour les essais selon la CEI 61000-4-3 a été étendue à des fréquences au-dessus de 1 GHz d'après les technologies utilisées dans cette zone de fréquence;  - les exigences d'essai d'après la CEI 61000-4-11 ont été amendées de manière significative;  - ajout d'un article sur les essais de production en série;   - ajout d'un nouvel article sur l'incertitude des mesures, et   - l'introduction d'exigences sur les accès de puissance en courant continu et sur les accès de télécommunication.  Elle a le statut d'une norme CEM de famille de produits conformément au Guide CEI 107:2009, Compatibilité électromagnétique - Guide pour la rédaction des publications sur la compatibilité électromagnétique. L'attention des Comités Nationaux est attirée sur le fait que les fabricants d'appareils et les organismes d'essai peuvent avoir besoin d'une période transitoire après la publication d'une nouvelle publication CEI, ou d'une publication amendée ou révisée, pour fabriquer des produits conformes aux nouvelles exigences et pour adapter leurs équipements aux nouveaux essais ou aux essais révisés. Le comité recommande que le contenu de cette publication soit entériné au niveau national non plus tôt que 12 mois de la date de publication. Pendant ce temps, l'édition précédente peut toujours être commandée auprès du Comité National CEI de votre pays ou auprès du bureau Central de la CEI.

Varnost močnostnih transformatorjev, dušilk, napajalnikov in kombinacij teh elementov - Zahteve EMC (IEC 62041:2010)

Ta mednarodni standard za družino izdelkov velja za transformatorje, dušilke, napajalnike in kombinacije teh elementov, zajetih v skupini standardov IEC 61558. Ta standard obravnava zahteve za elektromagnetno združljivost za oddajanje in odpornost v frekvenčnem razponu od 0 Hz do 400 GHz. Kjer zahteve niso določene, ni potrebno nobeno merjenje. Transformatorji, dušilke, napajalniki in kombinacije teh elementov, dobavljeni z napravo ali opremo ali v njiju vgrajeni, morajo upoštevati ustrezne standarde o elektromagnetni združljivosti, ki veljajo za te naprave ali opremo. Vendar se ta standard lahko uporabi tudi kot vodilo za ločeno preskušanje transformatorjev, dušilk, napajalnikov in kombinacij teh elementov, preden se vgradijo v napravo ali opremo. Ta standard o elektromagnetni združljivosti zajema le delovanje. Druge operacije transformatorjev, dušilk in napajalnikov (npr. simulacija okvar v električnem vezju za namene preskušanja ali funkcionalne varnosti zaradi učinkov elektromagnetnih pojavov ali ocenjevanja človeka pri izpostavljenosti elektromagnetnim poljem (EMF), niso obravnavane v tem standardu. Ta standard ne velja za: - brezprekinitvene napajalnike (UPS), zajete v skupini IEC 62040; napajalnike, zajete v IEC 61204-3 (tj. pretvornike DC-DC, opremo za napajanje z enosmernim tokom in njegovo distribucijo ter napajalnike za uporabo v napravah, zajetih v IEC 60950-1, IEC 61010-1, IEC 60601-1, IEC 60065 in IEC 62368-1); napajalnike in pretvornike za uporabo v izdelkih, zajetih v IEC 61347-1.

General Information

Status
Withdrawn
Publication Date
04-Jan-2011
Withdrawal Date
12-May-2025
Technical Committee
I96 - Imaginarni 96
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
13-May-2025
Due Date
05-Jun-2025
Completion Date
13-May-2025

Relations

Effective Date
01-Dec-2013
Effective Date
25-Feb-2020
Effective Date
05-Jul-2016
Effective Date
03-Dec-2013

Frequently Asked Questions

SIST EN 62041:2011 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Safety of transformers, reactors, power supply units and combinations thereof - EMC requirements (IEC 62041:2010)". This standard covers: IEC 62041:2010 applies to transformers, reactors, power supply units and combinations thereof covered by the IEC 61558 series of standards. This standard deals with the electromagnetic compatibility requirements for emission and immunity within the frequency range 0 Hz - 400 GHz. No measurement needs to be performed at frequencies where no requirement is specified. This second edition cancels and replaces the first edition published in 2003. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the frequency range for tests according to IEC 61000-4-3 has been extended above 1 GHz according to technologies used in this frequency area; - the testing requirements according to IEC 61000-4-11 have been amended significantly; - the inclusion of a clause on tests in series production; - the inclusion of a new clause on measurement uncertainly, and - the inclusion of requirements on DC power ports and telecommunication ports. It has the status of a product family EMC standard in accordance with IEC Guide 107:2009, Electromagnetic compatibility - Guide to the drafting of electromagnetic compatibility publications. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months from the date of publication. In the meantime, the previous edition can still be ordered by contacting your local IEC member National Committee or the IEC Central Office.

IEC 62041:2010 applies to transformers, reactors, power supply units and combinations thereof covered by the IEC 61558 series of standards. This standard deals with the electromagnetic compatibility requirements for emission and immunity within the frequency range 0 Hz - 400 GHz. No measurement needs to be performed at frequencies where no requirement is specified. This second edition cancels and replaces the first edition published in 2003. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the frequency range for tests according to IEC 61000-4-3 has been extended above 1 GHz according to technologies used in this frequency area; - the testing requirements according to IEC 61000-4-11 have been amended significantly; - the inclusion of a clause on tests in series production; - the inclusion of a new clause on measurement uncertainly, and - the inclusion of requirements on DC power ports and telecommunication ports. It has the status of a product family EMC standard in accordance with IEC Guide 107:2009, Electromagnetic compatibility - Guide to the drafting of electromagnetic compatibility publications. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months from the date of publication. In the meantime, the previous edition can still be ordered by contacting your local IEC member National Committee or the IEC Central Office.

SIST EN 62041:2011 is classified under the following ICS (International Classification for Standards) categories: 29.180 - Transformers. Reactors; 33.100.01 - Electromagnetic compatibility in general. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 62041:2011 has the following relationships with other standards: It is inter standard links to SIST EN 62041:2004, SIST EN IEC 62041:2020, SIST EN IEC 62041:2020, SIST EN 62041:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase SIST EN 62041:2011 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-februar-2011
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SIST EN 62041:2004
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HOHPHQWRY=DKWHYH(0& ,(&
Safety of transformers, reactors, power supply units and combinations thereof - EMC
requirements (IEC 62041:2010)
Sicherheit von Transformatoren, Drosseln, Netzgeräten und entsprechenden
Kombinationen - EMV-Anforderungen (IEC 62041:2010)
Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et des
combinaisons de ces éléments - Exigences CEM (CEI 62041:2010)
Ta slovenski standard je istoveten z: EN 62041:2010
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
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 62041
NORME EUROPÉENNE
December 2010
EUROPÄISCHE NORM
ICS 29.180; 33.100 Supersedes EN 62041:2003

English version
Safety of transformers, reactors, power supply units and combinations
thereof -
EMC requirements
(IEC 62041:2010)
Sécurité des transformateurs, bobines Sicherheit von Transformatoren, Drosseln,
d'inductance, blocs d'alimentation et des Netzgeräten und entsprechenden
combinaisons de ces éléments - Kombinationen -
Exigences CEM EMV-Anforderungen
(CEI 62041:2010) (IEC 62041:2010)

This European Standard was approved by CENELEC on 2010-12-01. 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 Central Secretariat 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 Central Secretariat 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62041:2010 E
Foreword
The text of document 96/358/FDIS, future edition 2 of IEC 62041, prepared by IEC TC 96, Transformers,
reactors, power supply units, and combinations thereof, was submitted to the IEC-CENELEC parallel vote
and was approved by CENELEC as EN 62041 on 2010-12-01.
This European Standard supersedes EN 62041:2003.
This EN 62041:2010 includes the following significant technical changes with respect to EN 62041:2003:
– the frequency range for tests according to EN 61000-4-3 has been extended above 1 GHz according
to technologies used in this frequency area;
– the testing requirements according to EN 61000-4-11 have been amended significantly;
– the inclusion of a clause on tests in series production;
– the inclusion of a new clause on measurement uncertainly; and
– the inclusion of requirements on DC power ports and telecommunication ports.
It has the status of a product family EMC standard in accordance with IEC Guide 107:2009,
Electromagnetic compatibility – Guide to the drafting of electromagnetic compatibility publications.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-09-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2013-12-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62041:2010 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 60065 NOTE  Harmonized as EN 60065.
IEC 60601-1 NOTE  Harmonized as EN 60601-1.
IEC 60950-1 NOTE  Harmonized as EN 60950-1.
IEC 61010-1 NOTE  Harmonized as EN 61010-1.
IEC 61204-3 NOTE  Harmonized as EN 61204-3.
IEC 61347-1 NOTE  Harmonized as EN 61347-1.
IEC 62040-2 NOTE  Harmonized as EN 62040-2.
CISPR 11 NOTE  Harmonized as EN 55011.

- 3 - EN 62041:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 61000-3-2 - Electromagnetic compatibility (EMC) - EN 61000-3-2 -
Part 3-2: Limits - Limits for harmonic current
emissions (equipment input current ≤ 16 A per
phase)
IEC 61000-3-3 - Electromagnetic compatibility (EMC) - EN 61000-3-3 -
Part 3-3: Limits - Limitation of voltage
changes, voltage fluctuations and flicker in
public low-voltage supply systems, for
equipment with rated current ≤16 A per phase
and not subject to conditional connection

IEC 61000-3-11 - Electromagnetic compatibility (EMC) - EN 61000-3-11 -
Part 3-11: Limits - Limitation of voltage
changes, voltage fluctuations and flicker in
public low-voltage supply systems -
Equipment with rated current ≤ 75 A and
subject to conditional connection

IEC 61000-3-12 - Electromagnetic compatibility (EMC) - EN 61000-3-12 -
Part 3-12: Limits - Limits for harmonic currents
produced by equipment connected to public
low-voltage systems with input current > 16 A
and ≤ 75 A per phase
IEC 61000-4-2 - Electromagnetic compatibility (EMC) - EN 61000-4-2 -
Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity
test
IEC 61000-4-3 - Electromagnetic compatibility (EMC) - EN 61000-4-3 -
Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test

IEC 61000-4-4 - Electromagnetic compatibility (EMC) - EN 61000-4-4 -
Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst
immunity test
IEC 61000-4-5 - Electromagnetic compatibility (EMC) - EN 61000-4-5 -
Part 4-5: Testing and measurement
techniques - Surge immunity test

Publication Year Title EN/HD Year

IEC 61000-4-6 - Electromagnetic compatibility (EMC) - EN 61000-4-6 -
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields
IEC 61000-4-11 - Electromagnetic compatibility (EMC) - EN 61000-4-11 -
Part 4-11: Testing and measurement
techniques - Voltage dips, short interruptions
and voltage variations immunity tests

IEC 61000-6-3 - Electromagnetic compatibility (EMC) - EN 61000-6-3 -
Part 6-3: Generic standards - Emission
standard for residential, commercial and light-
industrial environments
IEC 61000-6-4 - Electromagnetic compatibility (EMC) - EN 61000-6-4 -
Part 6-4: Generic standards - Emission
standard for industrial environments

IEC 61558 Series Safety of power transformers, EN 61558 Series
power supplies, reactors
and similar products
CISPR 14-1 2005 Electromagnetic compatibility - EN 55014-1 2006
Requirements for household appliances,
electric tools and similar apparatus -
Part 1: Emission
CISPR 16-1-2 2003 Specification for radio disturbance and EN 55016-1-2 2004
immunity measuring apparatus and methods -
Part 1-2: Radio disturbance and immunity
measuring apparatus - Ancillary equipment -
Conducted disturbances
CISPR 16-2-1 2008 Specification for radio disturbance and EN 55016-2-1 2009
immunity measuring apparatus and methods -
Part 2-1: Methods of measurement of
disturbances and immunity - Conducted
disturbance measurements
CISPR 16-2-3 - Specification for radio disturbance and EN 55016-2-3 -
immunity measuring apparatus and methods -
Part 2-3: Methods of measurement of
disturbances and immunity - Radiated
disturbance measurements
CISPR 22 (mod) - Information technology equipment - Radio EN 55022 -
disturbance characteristics - Limits and
methods of measurement
IEC 62041 ®
Edition 2.0 2010-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Safety of transformers, reactors, power supply units and combinations thereof –
EMC requirements
Sécurité des transformateurs, bobines d’inductance, blocs d'alimentation et des
combinaisons de ces élements –
Exigences CEM
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
R
CODE PRIX
ICS 29.180, 33.100 ISBN 978-2-88912-157-1
– 2 – 62041 © IEC:2010
CONTENTS
FOREWORD.3
1 Scope.5
2 Normative references.5
3 Terms and definitions .6
4 Classification .8
5 Test specifications .8
5.1 Immunity .8
5.1.1 Immunity against disturbances .8
5.1.2 Test levels .10
5.2 Emission .14
5.2.1 Categories .14
5.2.2 Test levels .15
6 Specification of environment .17
Bibliography .18

Figure 1 – Example of ports .7

Table 1 – Electrostatic discharges – Test levels at enclosure.10
Table 2 – Radiated, radio frequency electromagnetic field – Test levels at enclosure .11
Table 3 – Electrical fast transient/burst – Test levels at signal port .11
Table 4 – Electrical fast transient/burst – Test levels at input and output DC power ports .12
Table 5 – Electrical fast transient/burst – Test levels at input and output AC power ports .12
Table 6 – Conducted disturbances, inducted by radio-frequency fields – Test levels at
a
signal ports and input and output at DC and AC power ports.13
Table 7 – Surge – Test levels at signal ports .13
Table 8 – Surge – Test levels at input and output DC power ports.13
Table 9 – Surge – Test levels at input and output AC power ports.14
Table 10 – Voltage dips – Test levels at input AC power ports .14
Table 11 – Voltage interruptions – Test levels at input AC power ports.14
Table 12 – Harmonics and flicker – Test levels at low voltage AC mains ports .15
Table 13 – Conducted radio disturbances – Test levels at signal ports
(telecommunications/network ports) .16
Table 14 – Conducted radio disturbances – Test levels at DC power ports).16
Table 15 – Conducted radio disturbances – Test levels at low voltage AC mains ports .16
Table 16 – Radiated radio disturbances – Test levels at enclosure port.17

62041 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF TRANSFORMERS, REACTORS,
POWER SUPPLY UNITS AND COMBINATIONS THEREOF –

EMC REQUIREMENTS
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 62041 has been prepared by Technical Committee 96: Transformers,
reactors, power supply units and combinations thereof.
This second edition cancels and replaces the first edition published in 2003. It constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– the frequency range for tests according to IEC 61000-4-3 has been extended above 1 GHz
according to technologies used in this frequency area;
– the testing requirements according to IEC 61000-4-11 have been amended significantly;
– the inclusion of a clause on tests in series production;
– the inclusion of a new clause on measurement uncertainly, and
– the inclusion of requirements on DC power ports and telecommunication ports.

– 4 – 62041 © IEC:2010
It has the status of a product family EMC standard in accordance with IEC Guide 107:2009,
Electromagnetic compatibility – Guide to the drafting of electromagnetic compatibility
publications.
The text of this standard is based on the following documents:
FDIS Report on voting
96/358/FDIS 96/367/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.
This standard is to be used in conjunction with IEC 61558 series.
In this standard, the following print types are used:
– requirements proper: in roman type;
– test specifications: in italic type;
– explanatory matter: in smaller roman type.
In the text of this publication, the words in bold are defined in Clause 3 of this standard and in
the IEC 61558 series.
The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC web site 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.
NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation
nationally not earlier than 12 months from the date of publication.

62041 © IEC:2010 – 5 –
SAFETY OF TRANSFORMERS, REACTORS,
POWER SUPPLY UNITS AND COMBINATIONS THEREOF –

EMC REQUIREMENTS
1 Scope
This international product family standard applies to transformers, reactors, power supply
units and combinations thereof covered by the IEC 61558 series of standards. This standard
deals with the electromagnetic compatibility requirements for emission and immunity within the
frequency range 0 Hz - 400 GHz. No measurement needs to be performed at frequencies
where no requirement is specified.
Transformers, reactors, power supply units and combinations thereof delivered with or
incorporated in an appliance or equipment should follow the relevant EMC standard applicable
to that appliance or equipment. However, this standard may be used as a guide to test the
transformers, reactors, power supply units and combinations thereof separately before
incorporating them in the appliance or equipment.
This EMC standard covers performance only. Other operations of the transformers, reactors
and power supply units (e.g. simulated faults in the electric circuitry for testing purposes or
functional safety due to the effects of the electromagnetic phenomena, or evaluation of human
being for exposure to electromagnetic fields (EMF)) have not been taken into consideration in
this standard.
NOTE When EUT (Equipment under Test) is used, it covers transformers, reactors, power supply units and
combinations thereof where applicable.
This standard does not apply to:
– uninterruptible power supplies (UPS) covered by IEC 62040 series;
– power supply units covered by IEC 61204-3,
(i.e. DC-DC converters, DC power and distribution equipment and power supply units for
use in applications covered by IEC 60950-1, IEC 61010-1, IEC 60601-1, IEC 60065 and IEC
62368-1);
– power supplies and converters for use with or in products covered by IEC 61347-1.
2 Normative references
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 61000-3-2, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic
current emissions (equipment input current ≤16 A per phase)
IEC 61000-3-3, Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of voltage
changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment
with rated current ≤ 16 A per phase and not subject to conditional connection
IEC 61000-3-11, Electromagnetic compatibility (EMC) – Part 3-11: Limits – Limitation of voltage
changes, voltage fluctuations and flicker in public low-voltage supply systems – Equipment with
rated current ≤75 A and subject to conditional connection

– 6 – 62041 © IEC:2010
IEC 61000-3-12, Electromagnetic compatibility (EMC) – Part 3-12: Limits – Limits for harmonic
currents produced by equipment connected to public low-voltage systems with input current
>16 A and ≤75 A per phase
IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement
techniques – Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement
techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement
techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement
techniques – Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement
techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-11, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measurement
techniques – Voltage dips, short interruptions and voltage variations immunity tests
IEC 61000-6-3, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission
standard for residential, commercial and light-industrial environments
IEC 61000-6-4, Electromagnetic compatibility (EMC) – Part 6-4: Generic standards – Emission
standard for industrial environments
IEC 61558 (all parts), Safety of power transformers, power supplies, reactors and similar
products
CISPR 14-1:2005, Electromagnetic compatibility – Requirements for household appliances,
electric tools and similar apparatus – Part 1: Emission
CISPR 16-1-2:2003, Specification for radio disturbance and immunity measuring apparatus and
methods – Part 1-2: Radio disturbance and immunity measuring apparatus – Ancillary
equipment – Conducted disturbances
CISPR 16-2-1:2008, Specification for radio disturbance and immunity measuring apparatus and
methods – Part 2-1: Methods of measurement of disturbances and immunity – Conducted
disturbance measurements
CISPR 16-2-3, Specification for radio disturbance and immunity measuring apparatus and
methods – Part 2-3: Methods of measurement of disturbances and immunity – Radiated
disturbance measurements
CISPR 22, Information technology equipment – Radio disturbance characteristics – Limits and
methods of measurement
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
environment 1
residential, commercial and light-industrial locations, both indoor and outdoor

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