IEC 61000-3-3:2013/AMD2:2021

IEC 61000-3-3 ®
Edition 3.0 2021-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
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

Compatibilité électromagnétique (CEM) –
Partie 3-3: Limites – Limitation des variations de tension, des fluctuations de
tension et du papillotement dans les réseaux publics d'alimentation basse
tension, pour les matériels ayant un courant assigné ≤ 16 A par phase non
soumis à un raccordement conditionnel

IEC 61000-3-3:2013-05/AMD2:2021-03(en-fr)

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IEC 61000-3-3 ®
Edition 3.0 2021-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
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

Compatibilité électromagnétique (CEM) –

Partie 3-3: Limites – Limitation des variations de tension, des fluctuations de

tension et du papillotement dans les réseaux publics d'alimentation basse

tension, pour les matériels ayant un courant assigné ≤ 16 A par phase non

soumis à un raccordement conditionnel

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10 ISBN 978-2-8322-1072-3

– 2 – IEC 61000-3-3:2013/AMD2:2021
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
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

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
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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
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6) All users should ensure that they have the latest edition of this publication.
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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 document may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 2 to IEC 61000-3-3:2013 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:
CDV Report on voting
77A/1075/CDV 77A/1093/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.

© IEC 2021
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/standardsdev/publications/.
A list of all parts in the IEC 61000 series, published under the general title Electromagnetic
compatibility (EMC), can be found on the IEC website.
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,
• replaced by a revised edition, or
• amended.
The contents of the corrigendum 1 (2022-01) have been included in this copy.

INTRODUCTION to the corrigendum
During the final editing of the text for IEC 61000-3-3:2013/AMD2:2021 (Edition 3), a mistake
occurred and the sentence “P shall not be evaluated” is not displayed as a separate paragraph.
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As a result, this could lead to a wrong interpretation of the text and to wrong Pass/Fail results.
This corrigendum is needed to clarify that the text “P shall not be evaluated” applies to all
lt
equipment in Clause A.16.
– 4 – IEC 61000-3-3:2013/AMD2:2021
© IEC 2021
A.1.6 Microwave ovens
Replace the text of A.1.6 with the following:
The microwave oven shall be operated with a potable water load of initially 1 000 g ± 50 g in a
cylindrical borosilicate glass vessel, having a maximum material thickness of 3 mm and an
outside diameter of approximately 190 mm. The load shall be placed at the centre of the load-
carrying surface. The initial temperature of the water shall be between 10 °C and 25 °C.
The tests shall be performed at the lowest power stage, the stage nearest to 50 % of the
maximum power, and a third stage which is the highest adjustable power which is less than or
equal to 90 % of the maximum power. The worst result shall be recorded. The microwave
heating is switched on during the first 10 s of the observation period. For the highest measured
power stage, the microwave heating shall be switched off after 300 s ± 10 s. For the other power
stages, the microwave heating is switched off during the last 10 s of the observation period.
The P shall be evaluated in each case over the required 10 min.
st
A.5 Test conditions for refrigerators
Replace the title and text of Clause A.5 with the following:
A.5 Test conditions for refrigerators and freezers
Refrigerators shall operate continuously with the door closed. Adjust the thermostat to the mid-
value of the adjusting range. The cabinet shall be empty and not heated. The measurement
shall be made after a steady state has been reached. P and P shall not be evaluated. For
st lt
repeatability reasons, at least three switch-on and three switch-off events of the compressor
shall be evaluated.
Refrigerators with a rated power < 200 W are deemed to comply with all requirements of this
document without testing.
A.10 Test conditions for hairdryers
Replace the title and text of Clause A.10 with the following:
A.10 Test conditions for hairdryers and similar hair care equipment
For hairdryers and similar hair care equipment, which are intended to be held in hand during
use, P shall not be evaluated.

lt
If the EUT is not intended for continuous operation of at least 10 min or switches off
automatically before that time, the minimum time to restart the equipment shall be included in
the observation period. The measurement shall continue until the end of the 10 min interval.
For equipment that can be operated at different settings (e.g. for heat and/or airflow) the power
of the EUT shall be varied by changing the settings during the 10 min observation period as
described below, but without including those settings where the heating is not active.
If the user controls provide discrete settings, all settings shall be included in the observation
period up to a maximum of 10 settings. The maximum and minimum power settings shall be
included.
If the user controls provide instead a range in which the quantity being controlled (e.g. heat)
can be varied continuously between maximum and minimum, the total range shall be divided

© IEC 2021
into 10 equally spaced steps and the corresponding settings shall be used to determine the test
conditions subjected to measurement.
In any case, the 10 min observation time shall include two periods during which the EUT is
switched off. The duration of each off period shall be 1 min. The remaining time (8 min) shall
be equally divided between the available power levels with heating on.
NOTE For example, if a hairdryer provides the user with a combination of 5 settings with heating on, each setting
will be operated for (10-2)/5 = 1,6 min (96 s). Multiple power settings can result from the possible combinations
obtained from multiple settings of heat and airflow.
The initial switch on event and the final switch off event shall be included in the observation
time. The stepping through the different levels is with decreasing heating power, starting from
maximum.
A.14 Test conditions for air conditioners, dehumidifiers, heat pumps, and
commercial refrigerating equipment
Replace the last paragraph with the following:
P and P shall be evaluated using the number of cycles per hour declared by the manufacturer.
st lt
Add the following new Clauses A.16, A.17 and A.18:
A.16 Coffee machines and tea machines
Before the start of a measurement, the machine is warmed up, so that the preparation of
beverages can start immediately after the start of the measurement. To achieve good
repeatability of measurement it is recommended to prepare a typical beverage as warming up
and then wait 30 s before starting the measurements.
For machines designed to prepare only one type of beverage, this beverage shall be prepared
consecutively with an interval of 30 s between two dispensings. This means that at each end of
a beverage, the operator waits 30 s before starting the next beverage.
Any rinsing process during the observation period may be evaluated as a dispensing of a
beverage.
NOTE 1 Some coffee or tea machines automatically activate a rinsing process that is considered part of the normal
dispensing process of the machine.
For machines designed to prepare cups of different beverages, during the 10 min measuring
period for the P the three most typical beverages are prepared one after the other, with the
st
same interval of 30 s between consecutive dispensings. The preparation of the last beverage
is started, even if it cannot be finished within the measuring period. If the preparation of the
three beverages is finished before the end of the measured period, the cycle of beverages is
continued with the first beverage. The choice of beverages should be based on the
consideration that all internal power loads are at least activated once.
NOTE 2 Typical beverages are for example coffee, cappuccino and tea.
Parameters which can have an influence on the measurement result and can be adjusted by
the operator, are set to the default conditions. For the preparation of cappuccino, water may be
used instead of milk. Hot water may be prepared instead of real tea. The filling temperature of
water is between 10 °C and 25 °C.

– 6 – IEC 61000-3-3:2013/AMD2:2021
© IEC 2021
For machines, which are designed to prepare exclusively complete pots for a number of cups,
during the 10 min measuring period for the P complete pots are prepared one after the other
st
with 1 min separation between consecutive pots.
P shall not be evaluated.
lt
In any situation where it is necessary to verify the original measurement the measuring method
originally chosen shall be used in order to ensure consistency of the results.
A.17 Portable fan heaters
Fan heaters shall be evaluated continuously for 120 min. P and P shall be evaluated.
st lt
Fan heaters providing the user with controls to select different heat settings shall be cycled
according to the following steps:
1) one 10 min interval at maximum heat;
2) one 10 min interval off;
3) one 10 min interval at the heat setting expected to give the highest P value;
st
4) one 10 min interval off:
5) repeat from 1).
NOTE The above steps result in the cycle being run three times (40 × 3 = 120 min).
For equipment that restarts at the latest setting, the operating condition following an off interval
shall be set not later than 10 s after the EUT has been re-started.
For fan heaters which do not provide the user with multiple heat settings (i.e. the heating can
be only on or off), the test conditions evaluation shall be cycled according to the following steps:
a) one interval at maximu
...