EN 62041:2003

SLOVENSKI SIST EN 62041:2004
STANDARD
junij 2004
Power transformers, power supply units, reactors and similar products - EMC
requirements
ICS 29.180; 33.100.01 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 62041
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2003

ICS 29.180; 33.100
English version
Power transformers, power supply units,
reactors and similar products –
EMC requirements
(IEC 62041:2003)
Transformateurs, blocs d'alimentation, Sicherheit von Transformatoren,
bobines d'inductance et produits Netzgeräten, Drosseln und dergleichen –
analogues – EMV-Anforderungen
Prescriptions CEM (IEC 62041:2003)
(CEI 62041:2003)
This European Standard was approved by CENELEC on 2003-10-01. 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62041:2003 E
Foreword
The text of document 96/198/FDIS, future edition 1 of IEC 62041, prepared by IEC TC 96, Small
power transformers, reactors, power supply units and similar products, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as EN 62041 on 2003-10-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2004-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2006-10-01
This standard is only intended to be used for products covered by product safety standards of
IEC Technical Committee 96: the IEC 61558 series (harmonized as EN 61558) and IEC 60989.
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.
__________
Endorsement notice
The text of the International Standard IEC 62041:2003 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 60065:2002 (modified).
IEC 60601-1 NOTE Harmonized as EN 60601-1:1990 (not modified).
IEC 60950 NOTE Harmonized in EN 60950 series (partly modified).
IEC 61010-1 NOTE Harmonized as EN 61010-1:2001 (not modified).
IEC 61347-1 NOTE Harmonized as EN 61347-1:2001 (not modified).
IEC 61347-2-2 NOTE Harmonized as EN 61347-2-2:2001 (not modified).
IEC 62040 NOTE Harmonized in EN 62040 series (partly modified).
__________
- 3 - EN 62041:2003
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
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
1)
IEC 60989 - Separating transformers, - -
autotransformers, variable transformers
and reactors
1)
2)
IEC 61000-3-2 - Electromagnetic compatibility (EMC) EN 61000-3-2 2000
(mod) Part 3-2: Limits - Limits for harmonic
current emissions (equipment input
current up to and including 16 A per
phase)
1)
IEC/TS 61000-3-4 - Part 3-4: Limits - Limitation of emission - -
of harmonic currents in low-voltage
power supply systems for equipment
with rated current greater than 16 A

1) 2)
IEC 61000-4-2 - Part 4-2: Testing and measurement EN 61000-4-2 1995
techniques - Electrostatic discharge
immunity test
1) 2)
IEC 61000-4-3 - Part 4-3: Testing and measurement EN 61000-4-3 2002
techniques - Radiated, radio-frequency,
electromagnetic field immunity test

1) 2)
IEC 61000-4-4 - Part 4-4: Testing and measurement EN 61000-4-4 1995
techniques - Electrical fast
transient/burst immunity test
1) 2)
IEC 61000-4-5 - Part 4-5: Testing and measurement EN 61000-4-5 1995
techniques - Surge immunity test

1)
IEC 61000-4-6 - Part 4-6: Testing and measurement - -
techniques - Immunity to conducted
disturbances, induced by radio-
frequency fields
1)
Undated reference.
2)
Valid edition at date of issue.

Publication Year Title EN/HD Year
2)
IEC 61000-4-11 1994 Part 4-11: Testing and measurement EN 61000-4-11 1994
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests
IEC 61558 Series Safety of power transformers, power EN 61558 Series
supply units and similar
CISPR 11 2003 Industrial scientific and medical (ISM) - -
radio-frequency equipment -
Electromagnetic disturbance
characteristics - Limits and methods of
measurement
NORME CEI
INTERNATIONALE IEC
INTERNATIONAL
Première édition
STANDARD
First edition
2003-08
Transformateurs, blocs d'alimentation,
bobines d'inductance et produits analogues –
Prescriptions CEM
Power transformers, power supply units,
reactors and similar products –
EMC requirements
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Pour prix, voir catalogue en vigueur
For price, see current catalogue

62041¤ IEC:2003 – 3 –
CONTENTS
FOREWORD . 5
1 Scope . 9
2 Normative references. 9
3 Terms and definitions.11
4 Classification .13
5 Test specifications .13
5.1 Immunity.13
5.1.1 Immunity against disturbances .13
5.1.2 Test levels .17
5.2 Emission.21
5.2.1 Categories .21
5.2.2 Test levels .23
6 Specification of environment .25
Bibliography .27
Table 1 – Electrostatic discharges – Test levels at enclosure .17
Table 2 – Radiated, radio frequency electromagnetic field – Test levels at enclosure.17
Table 3 – Electrical fast transient/burst – Test levels at ports for signal and control lines
and earth.19
Table 4 – Electrical fast transient/burst – Test levels at input and output d.c. and a.c.
power ports .19
Table 5 – Conducted disturbances, inducted by radio-frequency fields –Test levels at ports
for signal lines, control lines, earth and input and output at d.c. and a.c. power ports.19
Table 6 – Surge – Test levels at input and output a.c. power ports .21
Table 7 – Voltage dips and short interruptions – Test levels at input a.c. power ports .21
Table 8 – Conducted radio disturbances – Test levels at input a.c. power ports.23
Table 9 – Radiated radio disturbances – Test levels at enclosure.25

62041¤ IEC:2003 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
POWER TRANSFORMERS, POWER SUPPLY UNITS, REACTORS
AND SIMILAR PRODUCTS –
EMC requirements
FOREWORD
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International standard IEC 62041 has been prepared by Technical Committee 96: Small power
transformers, reactors, power supply units and similar products.
This EMC standard covers only EMC aspects and is not a safety standard.
The text of this standard is based upon the following documents:
FDIS Report on voting
96/198/FDIS 96/210/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 i
...