IEC 60335-1:2020
(Main)Household and similar electrical appliances - Safety - Part 1: General requirements
Household and similar electrical appliances - Safety - Part 1: General requirements
IEC 60335-1:2020 deals with the safety of electrical appliances for household and similar purposes, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances including direct current (DC) supplied appliances and battery-operated appliances.
Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard.
This standard deals with the reasonably foreseeable hazards presented by appliances that are encountered by all persons. However, in general, it does not take into account:
– persons (including children) whose physical, sensory or mental capabilities, or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Additional requirements may be necessary for appliances intended to be used in vehicles or on board ships or aircraft. In many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour, the national water supply authorities and similar authorities.
This standard does not apply to:
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– audio, video and similar electronic apparatus (IEC 60065);
– medical electrical equipment (IEC 60601 series);
– hand-held motor-operated electric tools (IEC 60745 series);
– information technology equipment (IEC 60950-1);
– transportable motor-operated electric tools (IEC 61029 series);
– audio/video, information and communication technology equipment (IEC 62368-1);
– electric motor-operated hand-held tools, transportable tools and lawn and garden machinery (IEC 62841 series).
This sixth edition cancels and replaces the fifth edition published in 2010, Amendment 1: 2013 and Amendment 2:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition (minor changes are not listed):
a) updated the text of this standard to align with the most recent editions of the dated normative references;
b) deleted some notes and converted many other notes, in whole or in part, to normative text;
c) changed some Annex designations from normative to informative;
d) introduced information on Guidance documents concerning the application of the safety requirements covered by IEC 60335 series and on how to retrieve them;
e) clarified requirements for PELV circuits;
f) clarification of requirements on measurement of power input and rated current when they vary throughout the operating cycle;
g) replaced normative Annex S with the informative Annex S "Guidance for the application of this standard on measurement of power input and current based on the requirements of 10.1 and 10.2 concerning the representative period";
h) introduced and clarified mechanical strength requirements for appliances with integral pins for insertion into socket-outlets;
i) revised requirements for battery-operated appliances;
j) introduced requirements for metal-ion batteries including a new Clause 12 Charging of metal-ion batteries;
k) introduced the application of test probe 18;
l) introduced requirements for appliances incorporating appliance outlets and socket-outlets accessible to the user;
m) revised and clarified requirements for appliances incorporating a functional earth;
n) introduced moisture resistance test requirements for appliances that incorporate an automatic cord reel and that have a second numeral IP rating;
o) clarified the appliance test criteria for the moisture resistance for appliances and parts of appliances with inte
Appareils électrodomestiques et analogues - Sécurité - Partie 1 : Exigences générales
L'IEC 60335-1:2020 traite de la sécurité des appareils électriques pour usages domestiques et analogues dont la tension assignée n'est pas supérieure à 250 V pour les appareils monophasés et à 480 V pour les autres appareils, y compris les appareils alimentés en courant continu (CC) et les appareils alimentés par batteries.
Les appareils non destinés à un usage domestique normal, mais qui néanmoins peuvent constituer une source de danger pour le public, tels que les appareils destinés à être utilisés par des utilisateurs non avertis dans des magasins, chez des artisans et dans des fermes, sont compris dans le domaine d'application de la présente norme.
La présente norme traite des dangers raisonnablement prévisibles que présentent les appareils pour toutes les personnes.
Cependant, la présente norme ne tient pas compte en général:
– des personnes (y compris des enfants) dont les capacités physiques, sensorielles ou mentales; ou le manque d'expérience et de connaissance les empêchent d'utiliser l'appareil en toute sécurité sans surveillance ou instruction;
– de l'utilisation de l'appareil comme jouet par des enfants.
Des exigences supplémentaires peuvent être nécessaires pour les appareils destinés à être utilisés dans des véhicules ou à bord de navires ou d'avions. Dans de nombreux pays, des exigences supplémentaires sont spécifiées par les organismes nationaux de la santé, par les organismes nationaux responsables de la protection des travailleurs, par les organismes nationaux responsables de l'alimentation en eau et par des organismes similaires.
La présente norme ne s'applique pas:
– aux appareils prévus exclusivement pour des usages industriels;
– aux appareils destinés à être utilisés dans des locaux présentant des conditions particulières, telles que la présence d'une atmosphère corrosive ou explosive (poussière, vapeur ou gaz);
– aux appareils audio, vidéo et appareils électroniques analogues (IEC 60065);
– aux appareils électromédicaux (série IEC 60601);
– aux outils électroportatifs à moteur (série IEC 60745);
– aux matériels de traitement de l'information (IEC 60950-1);
– aux machines-outils électriques semi-fixes (série IEC 61029);
– aux équipements des technologies de l'audio/vidéo, de l'information et de la communication (IEC 62368-1);
– aux outils électroportatifs à moteur, aux outils portables et aux machines pour jardins et pelouses (série IEC 62841).
Cette sixième édition annule et remplace la cinquième édition parue en 2010, l'Amendement 1:2013 et l'Amendement 2:2016. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente (les modifications mineures ne sont pas répertoriées):
a) mise à jour du texte de la présente norme pour l'aligner avec les éditions les plus récentes des références normatives datées;
b) suppression de quelques notes et conversion de plusieurs autres notes, en intégralité ou en partie, en texte normatif;
c) modification de certaines désignations d'annexes de normatives à informatives;
d) introduction d'informations sur les documents de recommandations concernant l'application des exigences de sécurité couvertes par la série IEC 60335 et sur la manière de les récupérer;
e) clarification des exigences relatives aux circuits à TBTP;
f) clarification des exigences relatives au mesurage de la puissance et du courant nominal lorsqu'ils varient au cours du cycle de fonctionnement;
g) remplacement de l'Annexe S normative par l'Annexe S informative "Recommandations relatives à l'application de la présente norme pour le mesurage de la puissance et du courant sur la base des exigences du 10.1 et du 10.2 concernant la période représentative";
h) introduction et clarification d'exigences concernant la résistance mécanique des appareils équipés de broches intégrées destinées à être insérées dans des socles de prises de courant;
i) révision des exigences relatives aux appareils alime
General Information
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Standards Content (Sample)
IEC 60335-1 ®
Edition 6.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 1: General requirements
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IEC 60335-1 ®
Edition 6.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 1: General requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120; 97.030 ISBN 978-2-8322-8600-5
– 2 – IEC 60335-1:2020 © IEC 2020
CONTENTS
FOREWORD. 6
INTRODUCTION . 9
1 Scope . 11
2 Normative references . 11
3 Terms and definitions . 16
4 General requirement . 28
5 General conditions for the tests . 28
6 Classification . 32
7 Marking and instructions . 32
8 Protection against access to live parts . 41
9 Starting of motor-operated appliances . 43
10 Power input and current . 43
11 Heating . 45
12 Charging of metal-ion batteries . 51
13 Leakage current and electric strength at operating temperature . 52
14 Transient overvoltages . 55
15 Moisture resistance . 55
16 Leakage current and electric strength. 58
17 Overload protection of transformers and associated circuits. 60
18 Endurance . 60
19 Abnormal operation . 60
20 Stability and mechanical hazards . 71
21 Mechanical strength . 72
22 Construction . 74
23 Internal wiring . 86
24 Components . 88
25 Supply connection and external flexible cords . 93
26 Terminals for external conductors . 101
27 Provision for earthing . 103
28 Screws and connections . 105
29 Clearances, creepage distances and solid insulation . 107
30 Resistance to heat and fire . 116
31 Resistance to rusting . 121
32 Radiation, toxicity and similar hazards . 121
Annex A (informative) Routine tests . 135
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 137
Annex C (normative) Ageing test on motors . 158
Annex D (normative) Thermal motor protectors . 159
Annex E (normative) Needle-flame test . 160
Annex F (normative) Capacitors . 161
Annex G (normative) Safety isolating transformers . 163
Annex H (normative) Switches . 164
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 166
Annex J (normative) Coated printed circuit boards . 168
Annex K (informative) Overvoltage categories . 169
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 170
Annex M (informative) Pollution degree . 173
Annex N (normative) Proof tracking test . 174
Annex O (informative) Selection and sequence of the tests of Clause 30 . 175
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 180
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 182
Annex R (normative) Software evaluation . 185
Annex S (informative) Guidance for the application of this standard on measurement of
power input and current based on the requirements of 10.1 and 10.2 concerning the
representative period . 199
Annex T (normative) UV-C radiation effect on non-metallic materials . 200
Annex U (normative) Appliances intended for remote communication through public
networks . 203
Bibliography . 207
Index of defined terms . 210
Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 122
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 123
Figure 3 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral class II appliances and for parts of class ll construction . 124
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 125
Figure 5 – Small part . 126
Figure 6 – Example of an electronic circuit with low-power points . 126
Figure 7 – Test finger nail . 127
Figure 8 – Flexing test apparatus . 128
Figure 9 – Constructions of cord anchorages . 129
Figure 10 – An example of parts of an earthing terminal . 130
Figure 11 – Examples of clearances . 131
Figure 12 – Example of the placement of the cylinder . 132
Figure 13 – Small parts cylinder . 133
Figure 14 – Example of a specified operating region of a lithium-ion cell during charging . 134
Figure B.1 – Examples of battery-operated appliance constructions and application of
normative Annex B . 155
– 4 – IEC 60335-1:2020 © IEC 2020
Figure B.2 – Examples of correct polarity connection marking representing three
batteries . 157
Figure I.1 – Simulation of faults . 167
Figure L.1 – Sequence for the determination of clearances . 170
Figure L.2 – Sequence for the determination of creepage distances . 171
Figure L.3 – Measurement of clearances . 172
Figure O.1 – Tests for resistance to heat . 175
Figure O.2 – Selection and sequence of tests for resistance to fire in hand-held
appliances . 176
Figure O.3 – Selection and sequence of tests for resistance to fire in attended
appliances . 176
Figure O.4 – Selection and sequence of tests for resistance to fire in unattended
appliances . 177
Figure O.5 – Some applications of the term "within a distance of 3 mm" . 179
Figure Q.1 – Flowchart outlining the sequence of tests for the evaluation of electronic
circuits . 183
Figure S.1 – Flowchart giving guidance on measurement of power input and current
concerning the representative period . 199
Table 1 – Power input deviation . 43
Table 2 – Current deviation . 44
Table 3 – Maximum normal temperature rises . 47
Table 4 – Voltage for electric strength test . 54
Table 5 – Characteristics of high-voltage sources . 54
Table 6 – Impulse test voltage . 55
Table 7 – Test voltages . 59
Table 8 – Maximum winding temperature . 63
Table 9 – Maximum abnormal temperature rise . 69
Table 10 – Dimensions of cables and conduits . 94
Table 11 – Minimum cross-sectional area of conductors . 96
Table 12 – Pull force and torque . 98
Table 13 – Nominal cross-sectional area of conductors. 102
Table 14 – Torque for testing screws and nuts . 106
Table 15 – Rated impulse voltage . 108
Table 16 – Minimum clearances . 109
Table 17 – Minimum creepage distances for basic insulation . 113
Table 18 – Minimum creepage distances for functional insulation . 114
Table 19 – Minimum thickness for accessible parts of reinforced insulation consisting
of a single layer . 116
Table A.1 – Test voltages . 136
Table B.1 – Artificial source characteristics . 139
Table B.2 – Total area of openings for metal-ion cells . 147
Table B.3 – Volume of air injected at 2 070 kPa . 147
Table C.1 – Test conditions . 158
Table R.1 – General fault/error conditions . 187
Table R.2 – Specific fault/error conditions . 189
Table R.3 – Semi-formal methods . 195
Table R.4 – Software architecture specification . 195
Table R.5 – Module design specification . 196
Table R.6 – Design and coding standards . 197
Table R.7 – Software safety validation . 197
Table T.1 – Minimum property retention limits after UV-C exposure . 201
Table T.2 – Minimum electric strength for internal wiring after UV-C exposure . 202
Table U.1 – Examples of acceptable measures against unauthorised access and
transmission fault/error modes . 205
– 6 – IEC 60335-1:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 1: General 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,
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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.
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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
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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 60335-1 has been prepared by IEC technical committee 61: Safety
of household and similar electrical appliances.
This sixth edition cancels and replaces the fifth edition published in 2010, Amendment 1:2013
and Amendment 2:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition (minor changes are not listed):
a) updated the text of this standard to align with the most recent editions of the dated normative
references;
b) deleted some notes and converted many other notes, in whole or in part, to normative text;
c) changed some Annex designations from normative to informative;
d) introduced information on Guidance documents concerning the application of the safety
requirements covered by IEC 60335 series and on how to retrieve them;
e) clarified requirements for PELV circuits;
f) clarification of requirements on measurement of power input and rated current when they
vary throughout the operating cycle;
g) replaced normative Annex S with the informative Annex S "Guidance for the application of
this standard on measurement of power input and current based on the requirements of 10.1
and 10.2 concerning the representative period";
h) introduced and clarified mechanical strength requirements for appliances with integral pins
for insertion into socket-outlets;
i) revised requirements for battery-operated appliances;
j) introduced requirements for metal-ion batteries including a new Clause 12 Charging of
metal-ion batteries;
k) introduced the application of test probe 18;
l) introduced requirements for appliances incorporating appliance outlets and socket-outlets
accessible to the user;
m) revised and clarified requirements for appliances incorporating a functional earth;
n) introduced moisture resistance test requirements for appliances that incorporate an
automatic cord reel and that have a second numeral IP rating;
o) clarified the appliance test criteria for the moisture resistance for appliances and parts of
appliances with integral pins for insertion into socket-outlets;
p) introduced limits on the output voltage of an accessible safety extra-low voltage outlet or
connector or Universal Serial Bus (USB) under abnormal operation conditions;
q) introduced requirements to cover optical radiation hazards;
r) introduced external communication software management items into normative Annex R;
s) revised external communication requirements in Table R.1 and Table R.2;
t) introduced in new normative Annex U cyber security requirements to avoid unauthorized
access and the effects of transmission failures via remote communication through public
networks.
The text of this International Standard is based on the following documents:
FDIS Report on voting
61/6012/FDIS 61/6089/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
The language used for the development of this International Standard is English.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60335 series, published under the general title Household and
similar electrical appliances – Safety, can be found on the IEC website.
This part is to be used in conjunction with the appropriate part 2 of IEC 60335. The parts 2
contain clauses to supplement or modify the corresponding clauses in this part to provide the
relevant requirements for each type of appliance.
This sixth edition of IEC 60335-1 is only to be used in conjunction with parts 2 that have been
established on the basis of this edition.
– 8 – IEC 60335-1:2020 © IEC 2020
The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the
adjective and the associated noun are also in bold.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://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.
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 or later than 36 months from the date of publication.
The following differences exist in the countries indicated below.
– Introduction: The Part 1 standard (UL60335-1) is only used in combination with a part 2 (UL60335-2-x). National
differences are specified in these standards (USA).
– 5.7: The ambient temperature is 25 °C ± 10 °C (Japan).
– 5.7: The ambient temperature is 27 °C ± 5 °C (India).
– 6.1: Class 0 appliances and class 0I appliances are not allowed (Australia, European Union, India, Israel,
New Zealand, Norway, Singapore, Switzerland, United Kingdom).
– 7.12.2: The requirements for full disconnection do not apply (Japan).
– 7.12.8: The maximum inlet water pressure shall be at least 1,0 MPa (Denmark, Norway, Sweden and Finland).
– 13.2: The test circuit and some leakage current limits are different (India).
– 19.5: The test is also applicable to appliances intended to be permanently connected to fixed wiring (Norway).
– 22.2: The second paragraph of this subclause dealing with single-phase class I appliances with heating elements
cannot be complied with because of the supply system (France).
– 22.2: The second paragraph of this subclause, that deals with single-phase, permanently connected class I
appliances having heating elements, is not applicable due to the supply system (Norway).
– 22.2: Double-pole switches or protective devices are required (Norway).
– 25.3: A set of supply leads is not permitted (Norway, Denmark, Finland, Netherlands).
– 25.8: 0,5 mm supply cords are not allowed for class I appliances (Australia and New Zealand).
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
Guidance documents concerning the application of the safety requirements for appliances can
be accessed via TC 61 supporting documents on the IEC website –
www.iec.ch/tc61/supportingdocuments
This information is given for the convenience of users of this International Standard and does
not constitute a replacement for the normative text in this standard.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal
use taking into account the manufacturer's instructions. It also covers abnormal situations that
can be expected in practice and takes into account the way in which electromagnetic
phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that there
is compatibility with the wiring rules when the appliance is connected to the supply mains.
However, national wiring rules may differ.
If the functions of an appliance are covered by different parts 2 of IEC 60335, the relevant part 2
is applied to each function separately, as far as is reasonable. If applicable, the influence of
one function on the other is taken into account.
Throughout this publication, when "part 2" is mentioned, it refers to the relevant part of
IEC 60335.
When a part 2 standard does not include additional requirements to cover hazards dealt with in
Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal publications, basic safety publications and group safety publications covering a hazard are not
applicable since they have been taken into consideration when developing the general and particular requirements
for the IEC 60335 series of standards.
Individual countries may wish to consider the application of this standard, as far as is
reasonable, to appliances not mentioned in a part 2, and to appliances designed on new
principles. In this case, consideration should be given to defining normal operation, specifying
the classification of the appliance according to Clause 6 and specifying whether the appliance
is operated attended or unattended. Consideration should also be given to particular categories
of likely users and to related specific risks such as access to live parts, hot surfaces or
hazardous moving parts.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of this standard if, when examined and tested, it is found to
have other features which impair the level of safety covered by these requirements.
– 10 – IEC 60335-1:2020 © IEC 2020
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of the
requirements and, if found to be substantially equivalent, may be considered to comply with this
standard.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods of measuring performance;
– CISPR 11, CISPR 14-1 and relevant IEC 61000-3 series standards concerning electromagnetic emissions;
– CISPR 14-2 concerning electromagnetic immunity;
– IEC standards published by TC 111 concerning environmental matters.
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 1: General requirements
1 Scope
This International Standard deals with the safety of electrical appliances for household and
similar purposes, their rated voltage being not more than 250 V for single-phase appliances
and 480 V for other appliances including direct current (DC) supplied appliances and battery-
operated appliances.
Appliances not intended for normal household use but which nevertheless may be a source of
danger to the public, such as appliances intended to be used by laymen in shops, in light
industry and on farms, are within the scope of this standard.
This standard deals with the reasonably foreseeable hazards presented by appliances that are
encountered by all persons. However, in general, it does not take into account:
– persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge
prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Additional requirements may be necessary for appliances intended to be used in vehicles or on
board ships or aircraft. In many countries, additional requirements are specified by the national
health authorities, the national authorities responsible for the protection of labour, the national
water supply authorities and similar authorities.
This standard does not apply to:
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the
presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– audio, video and similar electronic apparatus (IEC 60065);
– medical electrical equipment (IEC 60601 series);
– hand-held motor-operated electric tools (IEC 60745 series);
– information technology equipment (IEC 60950-1);
– transportable motor-operated electric tools (IEC 61029 series);
– audio/video, information and communication technology equipment (IEC 62368-1);
– electric motor-operated hand-held tools, transportable tools and lawn and garden machinery
(IEC 62841 series).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
– 12 – IEC 60335-1:2020 © IEC 2020
IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance
IEC 60061-1, Lamp caps and holders together with gauges for the control of interchangeability
and safety – Part 1: Lamp caps
IEC 60065:2014, Audio, video and similar electronic apparatus – Safety requirements
IEC 60068-2-2, Environmental testing – Part 2-2: Tests – Test B: Dry heat
IEC 60068-2-31, Environmental testing – Part 2-31: Tests – Test Ec: Rough handling shocks,
primarily for equipment-type specimens
IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady state
IEC TR 60083, Plugs and socket-outlets for domestic and similar general use standardized in
member countries of IEC
IEC 60085:2007, Electrical insulation – Thermal evaluation and designation
IEC 60112:2003, Method for the determination of the proof and the comparative tracking indices
of solid insulating materials
IEC 60112:2003/AMD1:2009
IEC 60127 (all parts), Miniature fuses
IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V
IEC 60227-5:2011, Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V – Part 5: Flexible cables (cords)
IEC 60238, Edison screw lampholders
IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V
IEC 60252-1:2010, AC motor capacitors – Part 1: General – Performance, testing and rating –
Safety requirements – Guidance for installation and operation
IEC 60252-1:2010/AMD1:2013
IEC 60309-2, Plugs, socket-outlets and couplers for industrial purposes – Part 2: Dimensional
interchangeability requirements for pin and contact-tube accessories
IEC 60320 (all parts), Appliance couplers for household and similar general purposes
IEC 60320-1, Appliance couplers for household and similar general purposes – Part 1: General
requirements
IEC 60320-2-3, Appliance couplers for household and similar general purposes – Part 2-3:
Appliance couplers with a degree of protection higher than IPX0
___________
There exists a consolidated edition 4.1:2009 that includes edition 4 and its Amendment 1.
There exists a consolidated edition 2.1:2013 that includes edition 2 and its Amendment 1.
IEC 60320-3, Appliance couplers for household and similar general purposes – Part 3: Standard
sheets and gauges
IEC 60384-14:2013, Fixed capacitors for use in electronic equipment – Part 14: Sectional
specification – Fixed capacitors for electromagnetic interference suppression and connection
to the supply mains
IEC 60384-14:2013/AMD1:2016
IEC 60417, Graphical symbols for use on equipment
IEC 60445:2017, Basic and safety principles for man-machine interface, marking and
identification – Identification of equipment terminals, conductor terminations and conductors
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 60598-1:2014, Luminaires – Part 1: General requirements and tests
IEC 60598-1:2014/AMD1:2017
IEC 60603-11, Connectors for frequencies below 3 MHz for use with printed boards – Part 11:
Detail specification for concentric connectors (dimensions for free connectors and fixed
connectors)
IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 60664-3:2016, Insulation coordination for equipment within low-voltage systems – Part 3:
Use of coating, potting or moulding for protection against pollution
IEC 60664-4:2005, Insulation coordination for equipment within low-voltage systems – Part 4:
Consideration of high-frequency voltage stress
IEC 60691, Thermal-links – Requirements and application guide
IEC 60695-2-11:2014, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products (GWEPT)
IEC 60695-2-12, Fire hazard testing – Part 2-12: Glowing/hot-wire based test methods – Glow-
wire flammability index (GWFI) test method for materials
IEC 60695-2-13, Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods – Glow-
wire ignition temperature (GWIT) test method for materials
IEC 60695-10-2, Fire hazard testing – Part 10-2: Abnormal heat – Ball pressure test
IEC 60695-11-5:2016, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method
– Apparatus, confirmatory test arrangement and guidance
___________
There exists a consolidated edition 4.1:2016 that includes edition 4 and its Amendment 1.
There exists a consolidated edition 2.2:2013 that includes edition 2 and its Amendment 1 and Amendment 2.
There exists a consolidated edition 8.1:2017 that includes edition 8 and its Amendment 1.
– 14 – IEC 60335-1:2020 © IEC 2020
IEC 60695-11-10, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical
flame test methods
IEC 60730-1:2013, Automatic electrical controls – Part 1: General requirements
IEC 60730-1:2013/AMD1:2015
IEC 60730-2-8:2018, Automatic electrical controls – Part 2-8: Particular requirements for
electrically operated water valves, including mechanical requirements
IEC 60730-2-9:2015, Automatic electrical controls – Part 2-9: Particular requirements for
temperature sensing controls
IEC 60730-2-9:2015/AMD1:2018
IEC 60730-2-10, Automatic electrical controls for household and similar use – Part 2-10:
Particular requirements for motor-starting relays
IEC 60738-1, Thermistors – Directly heated positive temperature coefficient – Part 1: Generic
specification
IEC 60799, Electrical accessories – Cord sets and interconnection cord sets
IEC 60906-1, IEC system of plugs and socket-outlets for household and similar purposes –
Part 1: Plugs and socket-outlets 16 A 250 V a.c.
IEC 60934, Circuit-breakers for equipment (CBE)
IEC 60990:2016, Methods of measurement of touch current and protective conductor current
IEC 60999-1:1999, Connecting devices – Electrical copper conductors – Safety requirements
for screw-type and screwless-type clamping units – Part 1: General requirements and particular
2 2
requirements for clamping units for conductors from 0,2 mm up to 35 mm (included)
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 61000-4-11:2020, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measure-
ment techniques – Voltage dips, short interruptions and voltage variations immunity tests for
equipment with input current up to 16 A per phase
___________
There exists a consolidated edition 5.1:2015 that includes edition 5 and its Amendment 1.
There exists a consolidated edition 4.1:2018 that includes edition 4 and its Amendment 1.
IEC 61000-4-13:2002, Electromagnetic compatibili
...
IEC 60335-1 ®
Edition 6.0 2020-09
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 1: General requirements
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IEC 60335-1 ®
Edition 6.0 2020-09
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 1: General requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120; 97.030 ISBN 978-2-8322-8822-1
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60335-1
Edition 6.0 2020-09
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –
Part 1: General requirements
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 61: Safety of
household and similar electrical appliances.
The text of this Interpretation Sheet is based on the following documents:
Draft Report on voting
61/5999/DISH 61/6009/RVDISH
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
___________
INTRODUCTION
Edition 6 of IEC 60335-1:2020 defines and introduces requirements for a detachable
power supply part of an appliance. In the document, 24.2 prohibits the use of a power
supply in a flexible cord.
QUESTION:
Does Subclause 24.2 prohibit the use of a detachable power supply part?
ANSWER
No, a "detachable power supply part" is a defined term and is not captured by the term
"power supply" as used in Subclause 24.2.
NOTE A detachable power supply part is captured by the defined term when the output of the power supply
part is detachable from the class III construction part of the appliance at:
– the power supply part, or
– the class III construction part of the appliance.
However, the supply cord (if any) does not have to be detachable from the detachable power supply part.
ICS 13.120; 97.030
– 2 – IEC 60335-1:2020 CMV © IEC 2020
CONTENTS
FOREWORD. 6
INTRODUCTION . 2
1 Scope . 11
2 Normative references . 11
3 Terms and definitions . 17
4 General requirement . 28
5 General conditions for the tests . 28
6 Classification . 33
7 Marking and instructions . 33
8 Protection against access to live parts . 42
9 Starting of motor-operated appliances . 44
10 Power input and current . 44
11 Heating . 46
12 Void Charging of metal-ion batteries . 52
13 Leakage current and electric strength at operating temperature . 53
14 Transient overvoltages . 56
15 Moisture resistance . 57
16 Leakage current and electric strength. 60
17 Overload protection of transformers and associated circuits. 62
18 Endurance . 62
19 Abnormal operation . 62
20 Stability and mechanical hazards . 72
21 Mechanical strength . 73
22 Construction . 75
23 Internal wiring . 88
24 Components . 91
25 Supply connection and external flexible cords . 95
26 Terminals for external conductors . 104
27 Provision for earthing . 107
28 Screws and connections . 109
29 Clearances, creepage distances and solid insulation . 111
30 Resistance to heat and fire . 121
31 Resistance to rusting . 126
32 Radiation, toxicity and similar hazards . 126
Annex A (informative) Routine tests . 140
Annex B (normative) Appliances powered by rechargeable batteries that are recharged
in the appliance Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 142
Annex C (normative) Ageing test on motors . 168
Annex D (normative) Thermal motor protectors . 169
Annex E (normative) Needle-flame test . 170
Annex F (normative) Capacitors . 171
Annex G (normative) Safety isolating transformers . 173
Annex H (normative) Switches . 174
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 176
Annex J (normative) Coated printed circuit boards . 178
Annex K (normative informative) Overvoltage categories . 179
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 180
Annex M (normative informative) Pollution degree . 183
Annex N (normative) Proof tracking test . 184
Annex O (informative) Selection and sequence of the tests of Clause 30 . 185
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 190
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 192
Annex R (normative) Software evaluation . 196
Annex S (normative informative) Battery-operated appliances powered by batteries that
are non-rechargeable or not recharged in the appliance Guidance for the application of
this standard on measurement of power input and current based on the requirements of
10.1 and 10.2 concerning the representative period . 210
Annex T (normative) UV-C radiation effect on non-metallic materials . 214
Annex U (normative) Appliances intended for remote communication through public
networks . 217
Bibliography . 221
Index of defined terms . 224
List of comments . 225
Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 127
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 128
Figure 3 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral class II appliances and for parts of class ll construction . 129
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 130
Figure 5 – Small part . 131
Figure 6 – Example of an electronic circuit with low-power points . 131
Figure 7 – Test finger nail . 132
Figure 8 – Flexing test apparatus . 133
Figure 9 – Constructions of cord anchorages . 134
Figure 10 – An example of parts of an earthing terminal . 135
Figure 11 – Examples of clearances . 136
Figure 12 – Example of the placement of the cylinder . 137
– 4 – IEC 60335-1:2020 CMV © IEC 2020
Figure 13 – Small parts cylinder . 138
Figure 14 – Example of a specified operating region of a lithium-ion cell during charging . 139
Figure B.1 – Examples of forms of constructions for appliances covered by Annex B . 145
Figure B.1 – Examples of battery-operated appliance constructions and application of
normative Annex B . 165
Figure B.2 – Examples of correct polarity connection marking representing three
batteries . 167
Figure I.1 – Simulation of faults . 177
Figure L.1 – Sequence for the determination of clearances . 180
Figure L.2 – Sequence for the determination of creepage distances . 181
Figure L.3 – Measurement of clearances . 182
Figure O.1 – Tests for resistance to heat . 185
Figure O.2 – Selection and sequence of tests for resistance to fire in hand-held
appliances . 186
Figure O.3 – Selection and sequence of tests for resistance to fire in attended
appliances . 186
Figure O.4 – Selection and sequence of tests for resistance to fire in unattended
appliances . 187
Figure O.5 – Some applications of the term "within a distance of 3 mm" . 189
Figure Q.1 – Flowchart outlining the sequence of tests for the evaluation of electronic
circuits . 194
Figure S.1 – Examples of battery marking representing three batteries . 212
Figure S.1 – Flowchart giving guidance on measurement of power input and current
concerning the representative period . 213
Table 1 – Power input deviation . 44
Table 2 – Current deviation . 45
Table 3 – Maximum normal temperature rises . 48
Table 4 – Voltage for electric strength test . 55
Table 5 – Characteristics of high-voltage sources . 56
Table 6 – Impulse test voltage . 56
Table 7 – Test voltages . 61
Table 8 – Maximum winding temperature . 65
Table 9 – Maximum abnormal temperature rise . 70
Table 10 – Dimensions of cables and conduits . 97
Table 11 – Minimum cross-sectional area of conductors . 99
Table 12 – Pull force and torque . 101
Table 13 – Nominal cross-sectional area of conductors. 106
Table 14 – Torque for testing screws and nuts . 110
Table 15 – Rated impulse voltage . 112
Table 16 – Minimum clearances . 113
Table 17 – Minimum creepage distances for basic insulation . 117
Table 18 – Minimum creepage distances for functional insulation . 117
Table 19 – Minimum thickness for accessible parts of reinforced insulation consisting
of a single layer . 120
Table A.1 – Test voltages . 141
Table B.1 – Artificial source characteristics . 149
Table B.2 – Total area of openings for metal-ion cells . 157
Table B.3 – Volume of air injected at 2 070 kPa . 157
Table C.1 – Test conditions . 168
Table R.1 – General fault/error conditions . 198
Table R.2 – Specific fault/error conditions . 200
Table R.3 – Semi-formal methods . 206
Table R.4 – Software architecture specification . 206
Table R.5 – Module design specification . 207
Table R.6 – Design and coding standards . 208
Table R.7 – Software safety validation . 208
Table T.1 – Minimum property retention limits after UV-C exposure . 215
Table T.2 – Minimum electric strength for internal wiring after UV-C exposure . 216
Table S.101 – Battery source impedance . 211
Table U.1 – Examples of acceptable measures against unauthorised access and
transmission fault/error modes . 219
– 6 – IEC 60335-1:2020 CMV © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 1: General 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
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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 IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
This commented version (CMV) of the official standard IEC 60335-1:2020 edition 6.0
allows the user to identify the changes made to the previous edition IEC 60335-1:2010
+AMD1:2013+AMD2:2016 CSV edition 5.2. Futhermore, comments from IEC TC 61 experts
are provided to explain the reasons of the most relevant changes.
A vertical bar appears in the margin wherever a change has been made. Additions are in
green text, deletions are in strikethrough red text. Experts' comments are identified by a
blue-background number. Mouse over a number to display a pop-up note with the
comment.
This publication contains the CMV and the official standard. The full list of comments is
available at the end of the CMV.
International Standard IEC 60335-1 has been prepared by IEC technical committee 61: Safety
of household and similar electrical appliances.
This sixth edition cancels and replaces the fifth edition published in 2010, Amendment 1:2013
and Amendment 2:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition (minor changes are not listed):
a) updated the text of this standard to align with the most recent editions of the dated normative
references;
b) deleted some notes and converted many other notes, in whole or in part, to normative text;
c) changed some Annex designations from normative to informative;
d) introduced information on Guidance documents concerning the application of the safety
requirements covered by IEC 60335 series and on how to retrieve them;
e) clarified requirements for PELV circuits;
f) clarification of requirements on measurement of power input and rated current when they
vary throughout the operating cycle;
g) replaced normative Annex S with the informative Annex S "Guidance for the application of
this standard on measurement of power input and current based on the requirements of 10.1
and 10.2 concerning the representative period";
h) introduced and clarified mechanical strength requirements for appliances with integral pins
for insertion into socket-outlets;
i) revised requirements for battery-operated appliances;
j) introduced requirements for metal-ion batteries including a new Clause 12 Charging of
metal-ion batteries;
k) introduced the application of test probe 18;
l) introduced requirements for appliances incorporating appliance outlets and socket-outlets
accessible to the user;
m) revised and clarified requirements for appliances incorporating a functional earth;
n) introduced moisture resistance test requirements for appliances that incorporate an
automatic cord reel and that have a second numeral IP rating;
o) clarified the appliance test criteria for the moisture resistance for appliances and parts of
appliances with integral pins for insertion into socket-outlets;
p) introduced limits on the output voltage of an accessible safety extra-low voltage outlet or
connector or Universal Serial Bus (USB) under abnormal operation conditions;
q) introduced requirements to cover optical radiation hazards;
r) introduced external communication software management items into normative Annex R;
s) revised external communication requirements in Table R.1 and Table R.2;
t) introduced in new normative Annex U cyber security requirements to avoid unauthorized
access and the effects of transmission failures via remote communication through public
networks.
The text of this International Standard is based on the following documents:
FDIS Report on voting
61/6012/FDIS 61/6089/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
The language used for the development of this International Standard is English.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
– 8 – IEC 60335-1:2020 CMV © IEC 2020
A list of all parts of the IEC 60335 series, published under the general title Household and
similar electrical appliances – Safety, can be found on the IEC website.
This part is to be used in conjunction with the appropriate part 2 of IEC 60335. The parts 2
contain clauses to supplement or modify the corresponding clauses in this part to provide the
relevant requirements for each type of appliance.
This sixth edition of IEC 60335-1 is only to be used in conjunction with parts 2 that have been
established on the basis of this edition.
The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the
adjective and the associated noun are also in bold.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://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.
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 or later than 36 months from the date of publication.
The following differences exist in the countries indicated below.
– Introduction: The Part 1 standard (UL60335-1) is only used in combination with a part 2 (UL60335-2-x). National
differences are specified in these standards (USA).
– 5.7: The ambient temperature is 25 °C ± 10 °C (Japan).
– 5.7: The ambient temperature is 27 °C ± 5 °C (India).
– 6.1: Class 0 appliances and class 0I appliances are not allowed (Australia, European Union, India, Israel,
New Zealand, Norway, Singapore, Switzerland, United Kingdom).
– 7.12.2: The requirements for full disconnection do not apply (Japan).
– 7.12.8: The maximum inlet water pressure shall be at least 1,0 MPa (Denmark, Norway, Sweden and Finland).
– 13.2: The test circuit and some leakage current limits are different (India).
– 19.5: The test is also applicable to appliances intended to be permanently connected to fixed wiring (Norway).
– 22.2: The second paragraph of this subclause dealing with single-phase class I appliances with heating elements
cannot be complied with because of the supply system (France).
– 22.2: The second paragraph of this subclause, that deals with single-phase, permanently connected class I
appliances having heating elements, is not applicable due to the supply system (Norway).
– 22.2: Double-pole switches or protective devices are required (Norway).
– 25.3: A set of supply leads is not permitted (Norway, Denmark, Finland, Netherlands).
– 25.8: 0,5 mm supply cords are not allowed for class I appliances (Australia and New Zealand).
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
The contents of the Interpretation Sheet 1 (2021-11) and the corrigendum 1 (2021-12) have
been included in this copy.
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
Guidance documents concerning the application of the safety requirements for appliances can
be accessed via TC 61 supporting documents on the IEC website –
www.iec.ch/tc61/supportingdocuments
This information is given for the convenience of users of this International Standard and does
not constitute a replacement for the normative text in this standard. 6
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal
use taking into account the manufacturer's instructions. It also covers abnormal situations that
can be expected in practice and takes into account the way in which electromagnetic
phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that there
is compatibility with the wiring rules when the appliance is connected to the supply mains.
However, national wiring rules may differ.
If the functions of an appliance are covered by different parts 2 of IEC 60335, the relevant part 2
is applied to each function separately, as far as is reasonable. If applicable, the influence of
one function on the other is taken into account.
NOTE 1 Throughout this publication, when "part 2" is mentioned, it refers to the relevant part of
IEC 60335. 3
When a part 2 standard does not include additional requirements to cover hazards dealt with in
Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards publications, basic safety publications and group safety publications
covering a hazard are not applicable since they have been taken into consideration when developing the general and
particular requirements for the IEC 60335 series of standards. For example, in the case of temperature requirements
for surfaces on many appliances, generic standards, such as ISO 13732-1 for hot surfaces, are not applicable in
addition to Part 1 or part 2 standards. 23
Individual countries may wish to consider the application of this standard, as far as is
reasonable, to appliances not mentioned in a part 2, and to appliances designed on new
principles. In this case, consideration should be given to defining normal operation, specifying
the classification of the appliance according to Clause 6 and specifying whether the appliance
is operated attended or unattended. Consideration should also be given to particular categories
of likely users and to related specific risks such as access to live parts, hot surfaces or
hazardous moving parts.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of this standard if, when examined and tested, it is found to
have other features which impair the level of safety covered by these requirements.
– 10 – IEC 60335-1:2020 CMV © IEC 2020
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of the
requirements and, if found to be substantially equivalent, may be considered to comply with this
standard.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods of measuring performance;
– CISPR 11, CISPR 14-1, IEC 61000-3-2 and IEC 61000-3-3 and relevant IEC 61000-3 series standards
concerning electromagnetic emissions;
– CISPR 14-2 concerning electromagnetic immunity;
– IEC standards published by TC 111 concerning environmental matters.
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 1: General requirements
1 Scope
This International Standard deals with the safety of electrical appliances for household and
similar purposes, their rated voltage being not more than 250 V for single-phase appliances
and 480 V for other appliances including direct current (DC) supplied appliances and battery-
operated appliances.
NOTE 1 Battery-operated appliances and other d.c. supplied appliances are within the scope of this standard. Dual
supply appliances, either mains-supplied or battery-operated, are regarded as battery-operated appliances when
operated in the battery mode. 24
Appliances not intended for normal household use but which nevertheless may be a source of
danger to the public, such as appliances intended to be used by laymen in shops, in light
industry and on farms, are within the scope of this standard.
NOTE 2 Examples of such appliances are catering equipment, cleaning appliances for commercial use, and
appliances for hairdressers. 2
This standard deals with the reasonably foreseeable hazards presented by appliances that are
encountered by all persons. However, in general, it does not take into account:
– persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge
prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
NOTE 3 Attention is drawn to the fact that Additional requirements may be necessary for appliances
intended to be used in vehicles or on board ships or aircraft. In many countries, additional
requirements are specified by the national health authorities, the national authorities
responsible for the protection of labour, the national water supply authorities and similar
authorities. 3
NOTE 4 This standard does not apply to: 3
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the
presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– audio, video and similar electronic apparatus (IEC 60065);
– appliances for medical purposes medical electrical equipment (IEC 60601 series);
– hand-held motor-operated electric tools (IEC 60745 series);
– personal computers and similar equipment information technology equipment (IEC 60950-
1);
– transportable motor-operated electric tools (IEC 61029 series);
– audio/video, information and communication technology equipment (IEC 62368-1);
– electric motor-operated hand-held tools, transportable tools and lawn and garden machinery
(IEC 62841 series).
– 12 – IEC 60335-1:2020 CMV © IEC 2020
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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. 25
IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance
IEC 60061-1, Lamp caps and holders together with gauges for the control of interchangeability
and safety – Part 1: Lamp caps
IEC 60065:20012014, Audio, video and similar electronic apparatus – Safety requirements
IEC 60068-2-2, Environmental testing – Part 2-2: Tests – Test B: Dry heat
IEC 60068-2-31, Environmental testing – Part 2-31: Tests – Test Ec: Rough handling shocks,
primarily for equipment-type specimens
IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady state
IEC TR 60083, Plugs and socket-outlets for domestic and similar general use standardized in
member countries of IEC
IEC 60085:2007, Electrical insulation – Thermal evaluation and designation
IEC 60112:2003, Method for the determination of the proof and the comparative tracking indices
of solid insulating materials
IEC 60112:2003/AMD1:2009
IEC 60127 (all parts), Miniature fuses
IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V
IEC 60227-5:2011, Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V – Part 5: Flexible cables (cords)
IEC 60238, Edison screw lampholders
IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V
IEC 60252-1:2010, AC motor capacitors – Part 1: General – Performance, testing and rating –
Safety requirements – Guide Guidance for installation and operation
IEC 60252-1:2010/AMD1:2013
IEC 60309 (all parts), Plugs, socket-outlets and couplers for industrial purposes
___________
There exists a consolidated edition 4.1:2009 that includes edition 4 and its Amendment 1.
There exists a consolidated edition 2.1:2013 that includes edition 2 and its Amendment 1.
IEC 60309-2, Plugs, socket-outlets and couplers for industrial purposes – Part 2: Dimensional
interchangeability requirements for pin and contact-tube accessories
IEC 60320 (all parts), Appliance couplers for household and similar general purposes
IEC 60320-1, Appliance couplers for household and similar general purposes – Part 1: General
requirements
IEC 60320-2-2, Appliance couplers for household and similar general purposes – Part 2-2:
Interconnection couplers for household and similar equipment
IEC 60320-2-3, Appliance couplers for household and similar general purposes – Part 2-3:
Appliance couplers with a degree of protection higher than IPX0
IEC 60320-3, Appliance couplers for household and similar general purposes – Part 3: Standard
sheets and gauges
IEC 60384-14:20052013, Fixed capacitors for use in electronic equipment – Part 14: Sectional
specification – Fixed capacitors for electromagnetic interference suppression and connection
to the supply mains
IEC 60384-14:2013/AMD1:2016
IEC 60417, Graphical symbols for use on equipment
IEC 60445:20102017, Basic and safety principles for man-machine interface, marking and
identification – Identification of equipment terminals, conductor terminations and conductors
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 60598-1:20082014, Luminaires – Part 1: General requirements and tests
IEC 60598-1:2014/AMD1:2017
IEC 60603-11, Connectors for frequencies below 3 MHz for use with printed boards – Part 11:
Detail specification for concentric connectors (dimensions for free connectors and fixed
connectors)
IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 60664-3:20032016, Insulation coordinati
...
IEC 60335-1 ®
Edition 6.1 2025-10
INTERNATIONAL
STANDARD
CONSOLIDATED VERSION
Household and similar electrical appliances - Safety -
Part 1: General requirements
ICS 13.120; 97.030 ISBN 978-2-8327-0832-3
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60335-1
Edition 6.0 2020-09
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –
Part 1: General requirements
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 61: Safety of
household and similar electrical appliances.
The text of this Interpretation Sheet is based on the following documents:
Draft Report on voting
61/5999/DISH 61/6009/RVDISH
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
___________
INTRODUCTION
Edition 6 of IEC 60335-1:2020 defines and introduces requirements for a detachable
power supply part of an appliance. In the document, 24.2 prohibits the use of a power
supply in a flexible cord.
QUESTION:
Does Subclause 24.2 prohibit the use of a detachable power supply part?
ANSWER
No, a "detachable power supply part" is a defined term and is not captured by the term
"power supply" as used in Subclause 24.2.
NOTE A detachable power supply part is captured by the defined term when the output of the power supply
part is detachable from the class III construction part of the appliance at:
– the power supply part, or
– the class III construction part of the appliance.
However, the supply cord (if any) does not have to be detachable from the detachable power supply part.
ICS 13.120; 97.030
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60335-1
Edition 6.0 2020-09
Household and similar electrical appliances - Safety -
Part 1: General requirements
INTERPRETATION SHEET 2
This interpretation sheet has been prepared by IEC technical committee 61: Safety of
household and similar electrical appliances.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
61/7436/DISH 61/7464/RVDISH
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
___________
TC 61 interpretation sheet on: Mechanical shock and vibration testing on large metal-
ion batteries of IEC 60335-1:2020
INTRODUCTION
Currently the standard mentions:
B.24.1 The relevant standards for non-acid based electrolyte cells employed in
batteries are IEC 62133-1:2017 for nickel systems and IEC 62133-2:2017 for lithium
systems.
NOTE The requirement for cells does not extend to the battery itself.
A battery that uses metal-ion chemistry shall additionally be subjected to the tests of
Subclauses 7.3.8.1 (vibration) and 7.3.8.2 (mechanical shock) of IEC 62133-2:2017.
When Annex B was written for the IEC 60335-1 edition 6, the batteries foreseen were for
portable applications and rather lightweight. The IEC 62133-2:2017 standard referred to is
applicable to portable lithium batteries only.
ICS 13.120, 97.030
For non-portable and/or large batteries (mass > 12 kg), the tests of IEC 62133-2 for
mechanical shock and vibration are not suitable.
QUESTION:
What test sequence for mechanical shock and vibration can be followed for large batteries?
ANSWER:
For practical reasons, IEC 60335-1 should follow the same differentiation as the UN 38.3
transport test or IEC 62281 standard (Safety of primary and secondary lithium cells and
batteries during transport).
For larger batteries with a mass exceeding 12 kg, Subclauses 6.4.3 (Test T-3: Vibration) and
6.4.4 (Test T-4: Shock) of IEC 62281:2019, including AMD1:2021 and AMD2:2023, may be
applied.
NOTE 1 The tests are technically identical to Test T.3 and Test T.4 of the UN manual of tests and criteria, section
38.3 rev.8 (2023).
NOTE 2 In accordance with Table 5 of IEC 62281:2019, testing is carried out on the battery without packaging.
CONTENTS
FOREWORD . 5
INTRODUCTION . 8
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 16
4 General requirement . 28
5 General conditions for the tests . 28
6 Classification . 32
7 Marking and instructions . 33
8 Protection against access to live parts . 41
9 Starting of motor-operated appliances . 43
10 Power input and current . 44
11 Heating . 46
12 Charging of metal-ion batteries . 51
13 Leakage current and electric strength at operating temperature . 53
14 Transient overvoltages . 55
15 Moisture resistance . 56
16 Leakage current and electric strength . 59
17 Overload protection of transformers and associated circuits . 61
18 Endurance . 61
19 Abnormal operation . 61
20 Stability and mechanical hazards . 71
21 Mechanical strength . 73
22 Construction . 74
23 Internal wiring . 89
24 Components . 91
25 Supply connection and external flexible cords . 96
26 Terminals for external conductors . 105
27 Provision for earthing . 107
28 Screws and connections . 109
29 Clearances, creepage distances and solid insulation . 112
30 Resistance to heat and fire . 120
31 Resistance to rusting . 125
32 Radiation, toxicity and similar hazards . 125
Annex A (informative) Routine tests . 141
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 143
Annex C (normative) Ageing test on motors . 167
Annex D (normative) Thermal motor protectors . 168
Annex E (normative) Needle-flame test . 169
Annex F (normative) Capacitors . 170
Annex G (normative) Safety isolating transformers . 172
Annex H (normative) Switches . 173
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 175
Annex J (normative) Coated printed circuit boards . 177
Annex K (informative) Overvoltage categories . 178
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 179
Annex M (informative) Pollution degree . 183
Annex N (normative) Proof tracking test . 184
Annex O (informative) Selection and sequence of the tests of Clause 30 . 185
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 190
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 192
Annex R (normative) Software evaluation . 195
Annex S (informative) Guidance for the application of this standard on measurement
of power input and current based on the requirements of 10.1 and 10.2 concerning the
representative period . 210
Annex T (normative) UV-C radiation effect on non-metallic materials . 211
Annex U (normative) Appliances intended for remote communication through public
networks . 214
Bibliography . 219
Index of defined terms . 222
Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 127
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 128
Figure 3 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral class II appliances and for parts of class ll construction . 129
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 130
Figure 5 – Small part . 131
Figure 6 – Example of an electronic circuit with low-power points . 131
Figure 7 – Test finger nail . 132
Figure 8 – Flexing test apparatus . 133
Figure 9 – Constructions of cord anchorages . 134
Figure 10 – An example of parts of an earthing terminal . 135
Figure 11 – Examples of clearances . 136
Figure 12 – Example of the placement of the cylinder . 138
Figure 13 – Small parts cylinder . 139
Figure 14 – Example of a specified operating region of a lithium-ion cell during
charging . 140
Figure B.1 – Examples of battery-operated appliance constructions and application of
normative Annex B (1 of 2) . 164
Figure B.2 – Examples of correct polarity connection marking representing three
batteries . 166
Figure I.1 – Simulation of faults . 176
Figure L.1 – Sequence for the determination of clearances . 180
Figure L.2 – Sequence for the determination of creepage distances . 181
Figure L.3 – Measurement of clearances . 182
Figure O.1 – Tests for resistance to heat . 185
Figure O.2 – Selection and sequence of tests for resistance to fire in hand-held
appliances . 186
Figure O.3 – Selection and sequence of tests for resistance to fire in attended
appliances . 186
Figure O.4 – Selection and sequence of tests for resistance to fire in unattended
appliances . 187
Figure O.5 – Some applications of the term "within a distance of 3 mm" . 189
Figure Q.1 – Flowchart outlining the sequence of tests for the evaluation of electronic
circuits (1 of 2) . 193
Figure R.1 – Examples of software separation . 206
Figure S.1 – Flowchart giving guidance on measurement of power input and current
concerning the representative period . 210
Table 1 – Power input deviation . 44
Table 2 – Current deviation . 45
Table 3 – Maximum normal temperature rises . 48
Table 4 – Voltage for electric strength test . 55
Table 5 – Characteristics of high-voltage sources . 55
Table 6 – Impulse test voltage . 56
Table 7 – Test voltages. 60
Table 8 – Maximum winding temperature . 64
Table 9 – Maximum abnormal temperature rise . 69
Table 20 – Halogen-free cord sets and cords . 94
Table 10 – Dimensions of cables and conduits . 98
Table 11 – Minimum cross-sectional area of conductors . 100
Table 12 – Pull force and torque . 102
Table 13 – Nominal cross-sectional area of conductors . 106
Table 14 – Torque for testing screws and nuts . 111
Table 15 – Rated impulse voltage . 113
Table 16 – Minimum clearances . 114
Table 17 – Minimum creepage distances for basic insulation . 117
Table 18 – Minimum creepage distances for functional insulation . 118
Table 19 – Minimum thickness for accessible parts of reinforced insulation consisting
of a single layer . 120
Table A.1 – Test voltages . 142
Table B.1 – Artificial source characteristics . 145
Table B.2 – Total area of openings for metal-ion cells . 154
Table B.3 – Volume of air injected at 2 070 kPa . 154
Table C.1 – Test conditions . 167
Table R.1 – General fault/error conditions . 197
Table R.2 – Specific fault/error conditions . 199
Table R.3 – Semi-formal methods . 205
Table R.4 – Software architecture specification . 205
Table R.8 – Principles of software partitioning . 206
Table R.5 – Module design specification . 207
Table R.6 – Design and coding standards . 207
Table R.7 – Software safety validation . 208
Table T.1 – Minimum property retention limits after UV-C exposure . 212
Table T.2 – Minimum electric strength for internal wiring after UV-C exposure .
Table U.1 – Acceptable measures against unauthorised access and transmission
fault/error modes . 216
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Household and similar electrical appliances - Safety -
Part 1: General 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,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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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.
This consolidated version of the official IEC Standard and its amendment has been prepared
for user convenience.
IEC 60335-1 edition 6.1 contains the sixth edition (2020-09) [documents 61/6012/FDIS and
61/6089/RVD], and
• the interpretation sheets 1 (2021-11) and 2 (2025-08)
• the corrigendum 1 (2021-12)
• the amendment 1 (2025-10) [documents 61/7471/FDIS and 61/7502/RVD]
In this Redline version, a vertical line in the margin shows where the technical content is
modified by amendment 1. Additions are in green text, deletions are in strikethrough red text.
A separate Final version with all changes accepted is available in this publication.
International Standard IEC 60335-1 has been prepared by IEC technical committee 61: Safety
of household and similar electrical appliances.
This sixth edition cancels and replaces the fifth edition published in 2010, Amendment 1:2013
and Amendment 2:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition (minor changes are not listed):
a) updated the text of this standard to align with the most recent editions of the dated normative
references;
b) deleted some notes and converted many other notes, in whole or in part, to normative text;
c) changed some Annex designations from normative to informative;
d) introduced information on Guidance documents concerning the application of the safety
requirements covered by IEC 60335 series and on how to retrieve them;
e) clarified requirements for PELV circuits;
f) clarification of requirements on measurement of power input and rated current when they
vary throughout the operating cycle;
g) replaced normative Annex S with the informative Annex S "Guidance for the application of
this standard on measurement of power input and current based on the requirements of 10.1
and 10.2 concerning the representative period";
h) introduced and clarified mechanical strength requirements for appliances with integral pins
for insertion into socket-outlets;
i) revised requirements for battery-operated appliances;
j) introduced requirements for metal-ion batteries including a new Clause 12 Charging of
metal-ion batteries;
k) introduced the application of test probe 18;
l) introduced requirements for appliances incorporating appliance outlets and socket-outlets
accessible to the user;
m) revised and clarified requirements for appliances incorporating a functional earth;
n) introduced moisture resistance test requirements for appliances that incorporate an
automatic cord reel and that have a second numeral IP rating;
o) clarified the appliance test criteria for the moisture resistance for appliances and parts of
appliances with integral pins for insertion into socket-outlets;
p) introduced limits on the output voltage of an accessible safety extra-low voltage outlet or
connector or Universal Serial Bus (USB) under abnormal operation conditions;
q) introduced requirements to cover optical radiation hazards;
r) introduced external communication software management items into normative Annex R;
s) revised external communication requirements in Table R.1 and Table R.2;
t) introduced in new normative Annex U cyber security requirements to avoid unauthorized
access and the effects of transmission failures via remote communication through public
networks.
The text of this International Standard is based on the following documents:
FDIS Report on voting
61/6012/FDIS 61/6089/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
The language used for the development of this International Standard is English.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60335 series, published under the general title Household and
similar electrical appliances – Safety, can be found on the IEC website.
This part is to be used in conjunction with the appropriate part 2 of IEC 60335. The parts 2
contain clauses to supplement or modify the corresponding clauses in this part to provide the
relevant requirements for each type of appliance.
This sixth edition of IEC 60335-1 is only to be used in conjunction with parts 2 that have been
established on the basis of this edition.
The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the
adjective and the associated noun are also in bold.
The committee has decided that the contents of this document and its amendment 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.
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 or later than 36 months from the date of publication.
The following differences exist in the countries indicated below.
– Introduction: The Part 1 standard (UL60335-1) is only used in combination with a part 2 (UL60335-2-x). National
differences are specified in these standards (USA).
– 5.7: The ambient temperature is 25 °C ± 10 °C (Japan).
– 5.7: The ambient temperature is 27 °C ± 5 °C (India).
– 6.1: Class 0 appliances and class 0I appliances are not allowed (Australia, European Union, India, Israel,
New Zealand, Norway, Singapore, Switzerland, United Kingdom).
– 6.1: Class 0 appliances are not allowed (Australia, European Union, India, Israel, New Zealand, Norway,
Singapore, Switzerland, United Kingdom).
– 6.1: Class 0I appliances are not allowed (Australia, European Union, India, Israel, New Zealand, Norway,
Singapore, Switzerland, United Kingdom).
– 7.12.2: The requirements for full disconnection do not apply (Japan).
– 7.12.8: The maximum inlet water pressure shall be at least 1,0 MPa (Denmark, Norway, Sweden and Finland).
– 13.2: The test circuit and some leakage current limits are different (India).
– 19.5: The test is also applicable to appliances intended to be permanently connected to fixed wiring (Norway).
– 22.2: The second paragraph of this subclause dealing with single-phase class I appliances with heating elements
cannot be complied with because of the supply system (France).
– 22.2: The second paragraph of this subclause, that deals with single-phase, permanently connected class I
appliances having heating elements, is not applicable due to the supply system (Norway).
– 22.2: Double-pole switches or protective devices are required (Norway).
– 25.3: A set of supply leads is not permitted (Norway, Denmark, Finland, Netherlands).
– 25.8: 0,5 mm supply cords are not allowed for class I appliances (Australia and New Zealand).
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
Guidance documents concerning the application of the safety requirements for appliances can
be accessed via TC 61 supporting documents on the IEC website –
www.iec.ch/tc61/supportingdocuments
This information is given for the convenience of users of this International Standard and does
not constitute a replacement for the normative text in this standard.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal
use taking into account the manufacturer's instructions. It also covers abnormal situations that
can be expected in practice and takes into account the way in which electromagnetic
phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that there
is compatibility with the wiring rules when the appliance is connected to the supply mains.
However, national wiring rules may differ.
If the functions of an appliance are covered by different parts 2 of IEC 60335, the relevant part 2
is applied to each function separately, as far as is reasonable. If applicable, the influence of
one function on the other is taken into account.
Throughout this publication, when "part 2" is mentioned, it refers to the relevant part of
IEC 60335.
When a part 2 standard does not include additional requirements to cover hazards dealt with in
Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal publications, basic safety publications and group safety publications covering a hazard are not
applicable since they have been taken into consideration when developing the general and particular requirements
for the IEC 60335 series of standards.
Individual countries may wish to consider the application of this standard, as far as is
reasonable, to appliances not mentioned in a part 2, and to appliances designed on new
principles. In this case, consideration should be given to defining normal operation, specifying
the classification of the appliance according to Clause 6 and specifying whether the appliance
is operated attended or unattended. Consideration should also be given to particular categories
of likely users and to related specific risks such as access to live parts, hot surfaces or
hazardous moving parts.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of this standard if, when examined and tested, it is found to
have other features which impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of the
requirements and, if found to be substantially equivalent, may be considered to comply with this
standard.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods of measuring performance;
– CISPR 11, CISPR 14-1 and relevant IEC 61000-3 series standards concerning electromagnetic emissions;
– CISPR 14-2 concerning electromagnetic immunity;
– IEC standards published by TC 111 concerning environmental matters.
1 Scope
This International Standard deals with the safety of electrical appliances for household and
similar purposes, their rated voltage being not more than 250 V for single-phase appliances
and 480 V for other appliances including direct current (DC) supplied appliances and battery-
operated appliances.
Appliances not intended for normal household use but which nevertheless may be a source of
danger to the public, such as appliances intended to be used by laymen in shops, in light
industry and on farms, are within the scope of this standard.
This standard deals with the reasonably foreseeable hazards presented by appliances that are
encountered by all persons. However, in general, it does not take into account:
– persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge
prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Additional requirements may be necessary for appliances intended to be used in vehicles or on
board ships or aircraft. In many countries, additional requirements are specified by the national
health authorities, the national authorities responsible for the protection of labour, the national
water supply authorities and similar authorities.
This standard does not apply to:
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the
presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– audio, video and similar electronic apparatus (IEC 60065);
– medical electrical equipment (IEC 60601 series);
– hand-held motor-operated electric tools (IEC 60745 series);
– information technology equipment (IEC 60950-1);
– transportable motor-operated electric tools (IEC 61029 series);
– audio/video, information and communication technology equipment (IEC 62368-1);
– electric motor-operated hand-held tools, transportable tools and lawn and garden machinery
(IEC 62841 series);
– luminaires (IEC 60598 series).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 60034-1, Rotating electrical machines – Part 1: Rating and performance
IEC 60061-1, Lamp caps and holders together with gauges for the control of interchangeability
and safety – Part 1: Lamp caps
IEC 60065:2014, Audio, video and similar electronic apparatus – Safety requirements
IEC 60068-2-2, Environmental testing – Part 2-2: Tests – Test B: Dry heat
IEC 60068-2-31, Environmental testing – Part 2-31: Tests – Test Ec: Rough handling shocks,
primarily for equipment-type specimens
IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady state
IEC TR 60083, Plugs and socket-outlets for domestic and similar general use standardized in
member countries of IEC
IEC 60085:2007, Electrical insulation – Thermal evaluation and designation
IEC 60112:20032020, Method for the determination of the proof and the comparative tracking
indices of solid insulating materials
IEC 60112:2003/AMD1:2009
IEC 60127 (all parts), Miniature fuses
IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V
IEC 60227-5:20112024, Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V - Part 5: Flexible cables (cords)
IEC 60238, Edison screw lampholders
IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V
IEC 60245-4, Rubber insulated cables - Rated voltages up to and including 450/750 V - Part 4:
Cords and flexible cables
IEC 60252-1:2010, AC motor capacitors – Part 1: General – Performance, testing and rating –
Safety requirements – Guidance for installation and operation
IEC 60252-1:2010/AMD1:2013
IEC 60309-2, Plugs, socket-outlets and couplers for industrial purposes – Part 2: Dimensional
interchangeability requirements for pin and contact-tube accessories
IEC 60320 (all parts), Appliance couplers for household and similar general purposes
IEC 60320-1, Appliance couplers for household
...
IEC 60335-1 ®
Edition 6.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 1: General requirements
Appareils électrodomestiques et analogues – Sécurité –
Partie 1: Exigences générales
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IEC 60335-1 ®
Edition 6.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 1: General requirements
Appareils électrodomestiques et analogues – Sécurité –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120; 97.030 ISBN 978-2-8322-3935-3
– 2 – IEC 60335-1:2020 © IEC 2020
CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 11
2 Normative references . 11
3 Terms and definitions . 16
4 General requirement . 28
5 General conditions for the tests . 28
6 Classification . 32
7 Marking and instructions . 32
8 Protection against access to live parts . 41
9 Starting of motor-operated appliances . 43
10 Power input and current . 43
11 Heating . 45
12 Charging of metal-ion batteries . 51
13 Leakage current and electric strength at operating temperature . 52
14 Transient overvoltages . 55
15 Moisture resistance . 56
16 Leakage current and electric strength . 58
17 Overload protection of transformers and associated circuits . 60
18 Endurance . 61
19 Abnormal operation . 61
20 Stability and mechanical hazards . 71
21 Mechanical strength . 72
22 Construction . 74
23 Internal wiring . 86
24 Components . 88
25 Supply connection and external flexible cords . 93
26 Terminals for external conductors . 101
27 Provision for earthing . 103
28 Screws and connections . 105
29 Clearances, creepage distances and solid insulation . 107
30 Resistance to heat and fire . 116
31 Resistance to rusting . 121
32 Radiation, toxicity and similar hazards . 121
Annex A (informative) Routine tests . 135
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 137
Annex C (normative) Ageing test on motors . 158
Annex D (normative) Thermal motor protectors . 159
Annex E (normative) Needle-flame test . 160
Annex F (normative) Capacitors . 161
Annex G (normative) Safety isolating transformers . 163
Annex H (normative) Switches . 164
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 166
Annex J (normative) Coated printed circuit boards . 168
Annex K (informative) Overvoltage categories . 169
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 170
Annex M (informative) Pollution degree. 173
Annex N (normative) Proof tracking test . 174
Annex O (informative) Selection and sequence of the tests of Clause 30 . 175
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 180
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 182
Annex R (normative) Software evaluation . 185
Annex S (informative) Guidance for the application of this standard on measurement of
power input and current based on the requirements of 10.1 and 10.2 concerning the
representative period . 199
Annex T (normative) UV-C radiation effect on non-metallic materials . 200
Annex U (normative) Appliances intended for remote communication through public
networks . 203
Bibliography . 207
Index of defined terms . 209
Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 122
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 123
Figure 3 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral class II appliances and for parts of class ll construction . 124
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 125
Figure 5 – Small part . 126
Figure 6 – Example of an electronic circuit with low-power points . 126
Figure 7 – Test finger nail . 127
Figure 8 – Flexing test apparatus . 128
Figure 9 – Constructions of cord anchorages . 129
Figure 10 – An example of parts of an earthing terminal . 130
Figure 11 – Examples of clearances . 131
Figure 12 – Example of the placement of the cylinder . 132
Figure 13 – Small parts cylinder . 133
Figure 14 – Example of a specified operating region of a lithium-ion cell during charging . 134
Figure B.1 – Examples of battery-operated appliance constructions and application of
normative Annex B. 155
Figure B.2 – Examples of correct polarity connection marking representing three
batteries . 157
– 4 – IEC 60335-1:2020 © IEC 2020
Figure I.1 – Simulation of faults . 167
Figure L.1 – Sequence for the determination of clearances . 170
Figure L.2 – Sequence for the determination of creepage distances . 171
Figure L.3 – Measurement of clearances . 172
Figure O.1 – Tests for resistance to heat . 175
Figure O.2 – Selection and sequence of tests for resistance to fire in hand-held
appliances . 176
Figure O.3 – Selection and sequence of tests for resistance to fire in attended
appliances . 176
Figure O.4 – Selection and sequence of tests for resistance to fire in unattended
appliances . 177
Figure O.5 – Some applications of the term "within a distance of 3 mm" . 179
Figure Q.1 – Flowchart outlining the sequence of tests for the evaluation of electronic
circuits . 183
Figure S.1 – Flowchart giving guidance on measurement of power input and current
concerning the representative period . 199
Table 1 – Power input deviation . 43
Table 2 – Current deviation . 44
Table 3 – Maximum normal temperature rises . 47
Table 4 – Voltage for electric strength test . 54
Table 5 – Characteristics of high-voltage sources . 55
Table 6 – Impulse test voltage . 55
Table 7 – Test voltages. 60
Table 8 – Maximum winding temperature . 63
Table 9 – Maximum abnormal temperature rise . 69
Table 10 – Dimensions of cables and conduits . 94
Table 11 – Minimum cross-sectional area of conductors . 96
Table 12 – Pull force and torque . 98
Table 13 – Nominal cross-sectional area of conductors . 102
Table 14 – Torque for testing screws and nuts . 106
Table 15 – Rated impulse voltage . 108
Table 16 – Minimum clearances . 109
Table 17 – Minimum creepage distances for basic insulation . 113
Table 18 – Minimum creepage distances for functional insulation . 114
Table 19 – Minimum thickness for accessible parts of reinforced insulation consisting
of a single layer . 116
Table A.1 – Test voltages . 136
Table B.1 – Artificial source characteristics . 139
Table B.2 – Total area of openings for metal-ion cells . 147
Table B.3 – Volume of air injected at 2 070 kPa . 147
Table C.1 – Test conditions . 158
Table R.1 – General fault/error conditions . 187
Table R.2 – Specific fault/error conditions . 189
Table R.3 – Semi-formal methods . 195
Table R.4 – Software architecture specification . 195
Table R.5 – Module design specification . 196
Table R.6 – Design and coding standards . 197
Table R.7 – Software safety validation . 197
Table T.1 – Minimum property retention limits after UV-C exposure . 201
Table T.2 – Minimum electric strength for internal wiring after UV-C exposure . 202
Table U.1 – Examples of acceptable measures against unauthorised access and
transmission fault/error modes . 205
– 6 – IEC 60335-1:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 1: General 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
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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
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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.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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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 60335-1 has been prepared by IEC technical committee 61: Safety
of household and similar electrical appliances.
This sixth edition cancels and replaces the fifth edition published in 2010, Amendment 1:2013
and Amendment 2:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition (minor changes are not listed):
a) updated the text of this standard to align with the most recent editions of the dated normative
references;
b) deleted some notes and converted many other notes, in whole or in part, to normative text;
c) changed some Annex designations from normative to informative;
d) introduced information on Guidance documents concerning the application of the safety
requirements covered by IEC 60335 series and on how to retrieve them;
e) clarified requirements for PELV circuits;
f) clarification of requirements on measurement of power input and rated current when they
vary throughout the operating cycle;
g) replaced normative Annex S with the informative Annex S "Guidance for the application of
this standard on measurement of power input and current based on the requirements of 10.1
and 10.2 concerning the representative period";
h) introduced and clarified mechanical strength requirements for appliances with integral pins
for insertion into socket-outlets;
i) revised requirements for battery-operated appliances;
j) introduced requirements for metal-ion batteries including a new Clause 12 Charging of
metal-ion batteries;
k) introduced the application of test probe 18;
l) introduced requirements for appliances incorporating appliance outlets and socket-outlets
accessible to the user;
m) revised and clarified requirements for appliances incorporating a functional earth;
n) introduced moisture resistance test requirements for appliances that incorporate an
automatic cord reel and that have a second numeral IP rating;
o) clarified the appliance test criteria for the moisture resistance for appliances and parts of
appliances with integral pins for insertion into socket-outlets;
p) introduced limits on the output voltage of an accessible safety extra-low voltage outlet or
connector or Universal Serial Bus (USB) under abnormal operation conditions;
q) introduced requirements to cover optical radiation hazards;
r) introduced external communication software management items into normative Annex R;
s) revised external communication requirements in Table R.1 and Table R.2;
t) introduced in new normative Annex U cyber security requirements to avoid unauthorized
access and the effects of transmission failures via remote communication through public
networks.
The text of this International Standard is based on the following documents:
FDIS Report on voting
61/6012/FDIS 61/6089/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
The language used for the development of this International Standard is English.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60335 series, published under the general title Household and
similar electrical appliances – Safety, can be found on the IEC website.
This part is to be used in conjunction with the appropriate part 2 of IEC 60335. The parts 2
contain clauses to supplement or modify the corresponding clauses in this part to provide the
relevant requirements for each type of appliance.
This sixth edition of IEC 60335-1 is only to be used in conjunction with parts 2 that have been
established on the basis of this edition.
– 8 – IEC 60335-1:2020 © IEC 2020
The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
notes: in small roman type.
–
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the
adjective and the associated noun are also in bold.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://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.
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 or later than 36 months from the date of publication.
The following differences exist in the countries indicated below.
– Introduction: The Part 1 standard (UL60335-1) is only used in combination with a part 2 (UL60335-2-x). National
differences are specified in these standards (USA).
– 5.7: The ambient temperature is 25 °C ± 10 °C (Japan).
– 5.7: The ambient temperature is 27 °C ± 5 °C (India).
– 6.1: Class 0 appliances and class 0I appliances are not allowed (Australia, European Union, India, Israel,
New Zealand, Norway, Singapore, Switzerland, United Kingdom).
– 7.12.2: The requirements for full disconnection do not apply (Japan).
– 7.12.8: The maximum inlet water pressure shall be at least 1,0 MPa (Denmark, Norway, Sweden and Finland).
– 13.2: The test circuit and some leakage current limits are different (India).
– 19.5: The test is also applicable to appliances intended to be permanently connected to fixed wiring (Norway).
– 22.2: The second paragraph of this subclause dealing with single-phase class I appliances with heating elements
cannot be complied with because of the supply system (France).
– 22.2: The second paragraph of this subclause, that deals with single-phase, permanently connected class I
appliances having heating elements, is not applicable due to the supply system (Norway).
– 22.2: Double-pole switches or protective devices are required (Norway).
– 25.3: A set of supply leads is not permitted (Norway, Denmark, Finland, Netherlands).
– 25.8: 0,5 mm supply cords are not allowed for class I appliances (Australia and New Zealand).
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
The contents of the Interpretation Sheet 1 (2021-11) and the corrigendum 1 (2021-12) have
been included in this copy.
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
Guidance documents concerning the application of the safety requirements for appliances can
be accessed via TC 61 supporting documents on the IEC website –
www.iec.ch/tc61/supportingdocuments
This information is given for the convenience of users of this International Standard and does
not constitute a replacement for the normative text in this standard.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal
use taking into account the manufacturer's instructions. It also covers abnormal situations that
can be expected in practice and takes into account the way in which electromagnetic
phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that there
is compatibility with the wiring rules when the appliance is connected to the supply mains.
However, national wiring rules may differ.
If the functions of an appliance are covered by different parts 2 of IEC 60335, the relevant part 2
is applied to each function separately, as far as is reasonable. If applicable, the influence of
one function on the other is taken into account.
Throughout this publication, when "part 2" is mentioned, it refers to the relevant part of
IEC 60335.
When a part 2 standard does not include additional requirements to cover hazards dealt with in
Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal publications, basic safety publications and group safety publications covering a hazard are not
applicable since they have been taken into consideration when developing the general and particular requirements
for the IEC 60335 series of standards.
Individual countries may wish to consider the application of this standard, as far as is
reasonable, to appliances not mentioned in a part 2, and to appliances designed on new
principles. In this case, consideration should be given to defining normal operation, specifying
the classification of the appliance according to Clause 6 and specifying whether the appliance
is operated attended or unattended. Consideration should also be given to particular categories
of likely users and to related specific risks such as access to live parts, hot surfaces or
hazardous moving parts.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of this standard if, when examined and tested, it is found to
have other features which impair the level of safety covered by these requirements.
– 10 – IEC 60335-1:2020 © IEC 2020
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of the
requirements and, if found to be substantially equivalent, may be considered to comply with this
standard.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods of measuring performance;
– CISPR 11, CISPR 14-1 and relevant IEC 61000-3 series standards concerning electromagnetic emissions;
– CISPR 14-2 concerning electromagnetic immunity;
– IEC standards published by TC 111 concerning environmental matters.
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 1: General requirements
1 Scope
This International Standard deals with the safety of electrical appliances for household and
similar purposes, their rated voltage being not more than 250 V for single-phase appliances
and 480 V for other appliances including direct current (DC) supplied appliances and battery-
operated appliances.
Appliances not intended for normal household use but which nevertheless may be a source of
danger to the public, such as appliances intended to be used by laymen in shops, in light
industry and on farms, are within the scope of this standard.
This standard deals with the reasonably foreseeable hazards presented by appliances that are
encountered by all persons. However, in general, it does not take into account:
– persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge
prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Additional requirements may be necessary for appliances intended to be used in vehicles or on
board ships or aircraft. In many countries, additional requirements are specified by the national
health authorities, the national authorities responsible for the protection of labour, the national
water supply authorities and similar authorities.
This standard does not apply to:
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the
presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– audio, video and similar electronic apparatus (IEC 60065);
– medical electrical equipment (IEC 60601 series);
– hand-held motor-operated electric tools (IEC 60745 series);
– information technology equipment (IEC 60950-1);
– transportable motor-operated electric tools (IEC 61029 series);
– audio/video, information and communication technology equipment (IEC 62368-1);
– electric motor-operated hand-held tools, transportable tools and lawn and garden machinery
(IEC 62841 series).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
– 12 – IEC 60335-1:2020 © IEC 2020
IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance
IEC 60061-1, Lamp caps and holders together with gauges for the control of interchangeability
and safety – Part 1: Lamp caps
IEC 60065:2014, Audio, video and similar electronic apparatus – Safety requirements
IEC 60068-2-2, Environmental testing – Part 2-2: Tests – Test B: Dry heat
IEC 60068-2-31, Environmental testing – Part 2-31: Tests – Test Ec: Rough handling shocks,
primarily for equipment-type specimens
IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady state
IEC TR 60083, Plugs and socket-outlets for domestic and similar general use standardized in
member countries of IEC
IEC 60085:2007, Electrical insulation – Thermal evaluation and designation
IEC 60112:2003, Method for the determination of the proof and the comparative tracking indices
of solid insulating materials
IEC 60112:2003/AMD1:2009
IEC 60127 (all parts), Miniature fuses
IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V
IEC 60227-5:2011, Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V – Part 5: Flexible cables (cords)
IEC 60238, Edison screw lampholders
IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V
IEC 60252-1:2010, AC motor capacitors – Part 1: General – Performance, testing and rating –
Safety requirements – Guidance for installation and operation
IEC 60252-1:2010/AMD1:2013
IEC 60309-2, Plugs, socket-outlets and couplers for industrial purposes – Part 2: Dimensional
interchangeability requirements for pin and contact-tube accessories
IEC 60320 (all parts), Appliance couplers for household and similar general purposes
IEC 60320-1, Appliance couplers for household and similar general purposes – Part 1: General
requirements
IEC 60320-2-3, Appliance couplers for household and similar general purposes – Part 2-3:
Appliance couplers with a degree of protection higher than IPX0
___________
There exists a consolidated edition 4.1:2009 that includes edition 4 and its Amendment 1.
There exists a consolidated edition 2.1:2013 that includes edition 2 and its Amendment 1.
IEC 60320-3, Appliance couplers for household and similar general purposes – Part 3: Standard
sheets and gauges
IEC 60384-14:2013, Fixed capacitors for use in electronic equipment – Part 14: Sectional
specification – Fixed capacitors for electromagnetic interference suppression and connection
to the supply mains
IEC 60384-14:2013/AMD1:2016
IEC 60417, Graphical symbols for use on equipment
IEC 60445:2017, Basic and safety principles for man-machine interface, marking and
identification – Identification of equipment terminals, conductor terminations and conductors
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 60598-1:2014, Luminaires – Part 1: General requirements and tests
IEC 60598-1:2014/AMD1:2017
IEC 60603-11, Connectors for frequencies below 3 MHz for use with printed boards – Part 11:
Detail specification for concentric connectors (dimensions for free connectors and fixed
connectors)
IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 60664-3:2016, Insulation coordination for equipment within low-voltage systems – Part 3:
Use of coating, potting or moulding for protection against pollution
IEC 60664-4:2005, Insulation coordination for equipment within low-voltage systems – Part 4:
Consideration of high-frequency voltage stress
IEC 60691, Thermal-links – Requirements and application guide
IEC 60695-2-11:2014, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products (GWEPT)
IEC 60695-2-12, Fire hazard testing – Part 2-12: Glowing/hot-wire based test methods – Glow-
wire flammability index (GWFI) test method for materials
IEC 60695-2-13, Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods – Glow-
wire ignition temperature (GWIT) test method for materials
IEC 60695-10-2, Fire hazard testing – Part 10-2: Abnormal heat – Ball pressure test
IEC 60695-11-5:2016, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method
– Apparatus, confirmatory test arrangement and guidance
___________
There exists a consolidated edition 4.1:2016 that includes edition 4 and its Amendment 1.
There exists a consolidated edition 2.2:2013
...
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