SIST EN 61000-4-27:2002/A2:2026

SLOVENSKI STANDARD
01-februar-2026
Elektromagnetna združljivost (EMC) - 4-27. del: Preskusne in merilne tehnike -
Preskus odpornosti proti nesimetriji za opremo z vhodnim tokom do 16 A na fazo -
Dopolnilo A2
Amendment 2 - Electromagnetic compatibility (EMC) - Part 4-27: Testing and
measurement techniques - Unbalance, immunity test for equipment with input current not
exceeding 16 A per phase
Elektromagnetische Verträglichkeit (EMV) - Teil 4-27: Prüf- und Messverfahren - Prüfung
der Störfestigkeit von Geräten mit einem Eingangsstrom, der 16 A je Leiter nicht
überschreitet, gegen Unsymmetrie (der Versorgungsspannung)
Amendement 2 - Compatibilité électromagnétique (CEM) - Partie 4-27: Techniques
d'essai et de mesure - Essai d'immunité aux déséquilibres.
Ta slovenski standard je istoveten z: EN 61000-4-27:2000/A2:2025
ICS:
33.100.20 Imunost Immunity
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61000-4-27:2000/A2

NORME EUROPÉENNE
EUROPÄISCHE NORM November 2025
ICS 33.100.20
English Version
Electromagnetic compatibility (EMC) - Part 4-27: Testing and
measurement techniques - Unbalance, immunity test for
equipment with input current not exceeding 16 A per phase
(IEC 61000-4-27:2000/AMD2:2025)
Compatibilité électromagnétique (CEM) - Partie 4-27: Elektromagnetische Verträglichkeit (EMV) - Teil 4-27: Prüf-
Techniques d'essai et de mesure - Essai d'immunité aux und Messverfahren - Prüfung der Störfestigkeit von Geräten
déséquilibres pour des matériels avec un courant appelé mit einem Eingangsstrom, der 16 A je Leiter nicht
n'excédant pas 16 A par phase überschreitet, gegen Unsymmetrie (der
(IEC 61000-4-27:2000/AMD2:2025) Versorgungsspannung)
(IEC 61000-4-27:2000/AMD2:2025)
This amendment A2 modifies the European Standard EN 61000-4-27:2000; it was approved by CENELEC on 2025-10-08. 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, 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 61000-4-27:2000/A2:2025 E

European foreword
The text of document 77A/1236/CDV, future edition 1 of IEC 61000-4-27/AMD2, prepared by SC 77A
"EMC - Low frequency phenomena" of IEC/TC 77 "Electromagnetic compatibility" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 61000-4-27:2000/A2:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-11-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-11-30
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 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 61000-4-27:2000/AMD2:2025 was approved by CENELEC
as a European Standard without any modification.

IEC 61000-4-27 ®
Edition 1.0 2025-09
INTERNATIONAL
STANDARD
BASIC EMC PUBLICATION
AMENDMENT 2
Electromagnetic compatibility (EMC) -
Part 4-27: Testing and measurement techniques - Unbalance, immunity test for
equipment with input current not exceeding 16 A per phase
ICS 33.100.20  ISBN 978-2-8327-0675-6

IEC 61000-4-27:2000-08/AMD2:2025-09(en)

IEC 61000-4-27:2000/AMD2:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Electromagnetic compatibility (EMC) -
Part 4-27: Testing and measurement techniques - Unbalance, immunity
test for equipment with input current not exceeding 16 A per phase

AMENDMENT 2
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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
Amendment 2 to IEC 61000-4-27:2000 has been prepared by subcommittee 77A: EMC – Low
frequency phenomena, of IEC technical committee 77: Electromagnetic compatibility.
The text of this Amendment is based on the following documents:
Draft Report on voting
77A/1236/CDV 77A/1249/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
IEC 61000-4-27:2000/AMD2:2025 © IEC 2025
The language used for the development of this Amendment is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications/.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
___________
INTRODUCTION
This amendment contains the following main changes in comparison with IEC 61000-4-
27:2000/AMD1:2009:
The angles in Table 1 (test levels) suggest a three-phase system with a negative phase
sequence while the intention is to have a positive phase sequence and thus the signs and
values of all angles in Table 1 should be corrected. In addition, the value of ku2 of class 2,
test 3 is 28 % instead of 25 %. The Table 1 is modified accordingly
Class X is defined as special and levels 2 and 3 refers to Annex D instead of 61000-2-4.
U is deleted from Table 1, and it is moved to the new Clause 3 (Terms, definitions, and
N
abbreviations). The definition 3.5 U nominal phase to neutral voltage is added.
N
In addition, the definition of rise and fall time is added (as in 61000-4-11:2020).
The text in Note 1 in Table 1 is deleted and replaced by “U is lagging against U , and U is
b a c
leading against U ”.
a
In Table 1 Add NOTE 2: The product committee may specify any test level; however, for
equipment connected to public supply systems, it Is recommended that the levels should not
be lower than those defined for class 2.
The sentence under Table
...