IEC 60335-2-120:2024

Household and similar electrical appliances - Safety - Part 2-120: Particular requirements for the safety of appliances for the generation of directly inhalable aerosols

IEC 603352-120:2024 deals with the safety of appliances for generation of directly inhalable aerosols, their rated voltage being not more than 250 V for single-phase appliances, and other appliances including direct current (DC) supplied appliances and battery-operated appliances.
Examples of the appliances that are within the scope of this standard are:
- vapour and aerosol appliances;
- personal vaping appliances with or without nicotine;
- electronic cigarettes;
- electronic nicotine delivery systems (ENDS);
- electronic non-nicotine delivery systems (ENNDS);
- electronic tobacco heating appliances for heated tobacco products.
This standard does not apply to:
- medical ventilators,
- humidifiers (IEC 60335-2-98).
These requirements do not cover the consumables, such as e-liquids and other inhaled aerosol substances, wicks, and other particulate matter inhaled during use, nor do they cover substances in the emissions from the operation of the appliances. For example, heavy metal emissions in the aerosol and environmental exposure are not covered by this standard. These requirements do not consider the physiological effects of any consumable used with the appliances. This International Standard does not cover requirements or prohibitions of the labelling, packaging and contents of nicotine-containing or nicotine-consuming products that are strictly regulated by law of the relevant jurisdiction.

Appareils électrodomestiques et analogues - Sécurité - Partie 2-120 : Exigences particulières de sécurité des appareils destinés à produire des aérosols directement inhalables

L'IEC 60335-2-120:2024 traite de la sécurité des appareils destinés à produire des aérosols directement inhalables dont la tension assignée n'est pas supérieure à 250 V pour les appareils monophasés et les autres appareils, y compris les appareils alimentés en courant continu et les appareils alimentés par batteries. La liste suivante répertorie les exemples d'appareils qui relèvent du domaine d'application de la présente norme:
- les appareils à vapeur et à aérosol;
- les appareils à vapoter individuels avec ou sans nicotine;
- les cigarettes électroniques;
- les systèmes électroniques de délivrance de nicotine (ENDS, Electronic Nicotine Delivery Systems);
- les systèmes électroniques de délivrance de produits autres que la nicotine (ENNDS, Electronic Non-Nicotine Delivery Systems);
- les appareils électroniques de chauffage du tabac pour les produits du tabac chauffés.
La présente norme ne s'applique pas:
- aux ventilateurs médicaux;
- aux humidificateurs (IEC 60335-2-98).
D'autres aspects liés à la sécurité des appareils compris dans le domaine d'application de la présente norme peuvent être couverts par des normes établies par le comité technique ISO/TC 126. Ces exigences ne s'appliquent pas aux consommables, tels que les e-liquides et autres substances inhalées sous forme d'aérosols, aux mèches et autres particules inhalées lors de l'utilisation, ni aux substances émises lors du fonctionnement des appareils. Par exemple, les émissions de métaux lourds dans l'aérosol et l'exposition de l'environnement ne sont pas couvertes par la présente norme.
Ces exigences ne tiennent pas compte des effets physiologiques de tout consommable utilisé avec les appareils. La présente Norme internationale ne traite pas des exigences ou interdictions concernant l'étiquetage, l'emballage et le contenu des produits qui contiennent ou consomment de la nicotine, ceux-ci étant strictement régis par la législation de la juridiction concernée. La présente partie 2 doit être utilisée conjointement avec la dernière édition de l'IEC 60335 1 et ses amendements sauf si cette édition l'exclut. Dans ce cas, la dernière édition qui n'exclut pas la présente partie 2 est utilisée. Elle a été établie sur la base de la sixième édition (2020) de cette norme.

General Information

• Status: Published
• Publication Date: 07-Feb-2024
• ICS: 13.120 - Domestic safety
• ICS: 97.180 - Miscellaneous domestic and commercial equipment
• Technical Committee: TC 61 - Safety of household and similar electrical appliances
• Drafting Committee: PT 60335-2-120 - TC 61/PT 60335-2-120
• Current Stage: PPUB - Publication issued
• Start Date: 01-Mar-2024
• Completion Date: 08-Feb-2024

Standards Content (Sample)

IEC 60335-2-120 ®
Edition 1.0 2024-02
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-120:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-120: Particular requirements for the safety of appliances for the
generation of directly inhalable aerosols
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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IEC 60335-2-120 ®
Edition 1.0 2024-02
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-120:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-120: Particular requirements for the safety of appliances for the
generation of directly inhalable aerosols
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120, 97.180 ISBN 978-2-8322-8273-1

IEC 60335-1:2020/ISH1:2021 – 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
IEC 60335-1:2020-09/ISH1:2021-11(en)

– 2 – IEC 60335-2-120:2024 EXV © IEC 2024
CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 15
4 General requirement . 27
5 General conditions for the tests . 27
6 Classification . 31
7 Marking and instructions . 32
8 Protection against access to live parts . 40
9 Starting of motor-operated appliances . 42
10 Power input and current . 42
11 Heating . 44
12 Charging of metal-ion batteries . 50
13 Leakage current and electric strength at operating temperature . 51
14 Transient overvoltages . 54
15 Moisture resistance . 55
16 Leakage current and electric strength . 57
17 Overload protection of transformers and associated circuits . 59
18 Endurance . 60
19 Abnormal operation . 60
20 Stability and mechanical hazards . 70
21 Mechanical strength . 71
22 Construction . 73
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 . 159
Annex D (normative) Thermal motor protectors . 160
Annex E (normative) Needle-flame test . 161
Annex F (normative) Capacitors . 162
Annex G (normative) Safety isolating transformers . 164

Annex H (normative) Switches . 165
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 167
Annex J (normative) Coated printed circuit boards . 169
Annex K (informative) Overvoltage categories . 170
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 171
Annex M (informative) Pollution degree . 174
Annex N (normative) Proof tracking test . 175
Annex O (informative) Selection and sequence of the tests of Clause 30 . 176
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 181
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 183
Annex R (normative) Software evaluation . 186
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 . 200
Annex T (normative) UV-C radiation effect on non-metallic materials . 201
Annex U (normative) Appliances intended for remote communication through public
networks . 204
Bibliography . 208
Index of defined terms . 211

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 .
...

IEC 60335-2-120 ®
Edition 1.0 2024-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-120: Particular requirements for the safety of appliances for the
generation of directly inhalable aerosols

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-120: Exigences particulières de sécurité des appareils destinés à
produire des aérosols directement inhalables
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

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a month by email.
and French, with equivalent terms in 25 additional languages.

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IEC 60335-2-120 ®
Edition 1.0 2024-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –

Part 2-120: Particular requirements for the safety of appliances for the

generation of directly inhalable aerosols

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-120: Exigences particulières de sécurité des appareils destinés à

produire des aérosols directement inhalables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120, 97.180 ISBN 978-2-8322-8173-4

– 2 – IEC 60335-2-120:2024 © IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 General requirement . 7
5 General conditions for the tests . 7
6 Classification . 8
7 Marking and instructions . 8
8 Protection against access to live parts . 8
9 Starting of motor-operated appliances . 8
10 Power input and current . 8
11 Heating . 8
12 Charging of metal-ion batteries . 9
13 Leaking current electric strength at operating temperature. 9
14 Transient overvoltages . 9
15 Moisture resistance . 9
16 Leakage current and electric strength . 9
17 Overload protection of transformers and associated circuits . 9
18 Endurance . 9
19 Abnormal operation . 9
20 Stability and mechanical hazards . 10
21 Mechanical strength . 10
22 Construction . 10
23 Internal wiring . 10
24 Components . 11
25 Supply connection and external flexible cords . 11
26 Terminals for external conductors . 11
27 Provision for earthing . 11
28 Screws and connections . 11
29 Clearances, creepage distances and solid insulation . 11
30 Resistance to heat and fire . 11
31 Resistance to rusting . 11
32 Radiation, toxicity and similar hazards . 11
Annexes . 12
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 13
Bibliography . 16

Table B.2 – Total area of openings for metal-ion cells . 14
Table B.3 – Volume of air injected at 2 070 kPa . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-120: Particular requirements for the safety of appliances
for the generation of directly inhalable aerosols

FOREWORD
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