IEC 60335-2-11:2024

Household and similar electrical appliances - Safety - Part 2-11: Particular requirements for tumble dryers

IEC 60335-2-11:2024 deals with the safety of electric tumble dryers intended 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. This standard applies to the drying function of washing machines having a drying cycle. This standard also deals with the safety of heat pump type tumble dryers. These appliances may use flammable refrigerants. Additional requirements for these appliances are given in normative Annex AA. Appliances not intended for normal household use but which nevertheless can 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. Examples of such appliances are tumble dryers for communal use in blocks of flats or in launderettes. As far as is practicable, this standard deals with the common 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.
Attention is drawn to the fact that
- for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary;
- 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.
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);
- appliances incorporating steam generating devices in which steam is produced at a pressure exceeding 50 kPa.
This ninth edition cancels and replaces the eighth edition published in 2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60335-1:2020;
b) conversion of some notes to normative text (Clause 1, Annex AA);
c) implement new definitions to type of appliances (3.5.102, 3.5.103, 3.5.104);
d) specific requirements have been added in 22.51 for remote operation;
e) specific requirements have been added in Clause 24 for motor running capacitors;
f) new modifications in Annex R;
g) update of requirements for appliance that use flammable refrigerants in Clause 21 and Clause 22 of Annex AA;
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments unless that edition precludes it; in that case, the latest edition that does not preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.

Appareils électrodomestiques et analogues - Sécurité - Partie 2-11: Exigences particulières pour les sèche-linge à tambour

L'IEC 60335-2-11:2024 traite de la sécurité des sèche-linge à tambour électriques destinés à un usage domestique et analogue, dont la tension assignée est inférieure ou égale à 250 V pour les appareils monophasés et à 480 V pour les autres appareils, y compris les appareils alimentés en courant continu et les appareils alimentés par batteries. La présente norme s'applique à la fonction de séchage des machines à laver le linge qui possèdent un cycle de séchage. La présente norme traite également de la sécurité des sèche-linge à tambour à pompe à chaleur. Ces appareils peuvent utiliser des fluides frigorigènes inflammables. Des exigences supplémentaires pour ces appareils sont données à l'Annexe AA normative. Les appareils non destinés à un usage domestique normal, mais qui peuvent néanmoins constituer une source de danger pour le public, tels que les appareils destinés à être utilisés par des usagers non avertis dans des magasins, chez des artisans et dans des fermes, sont compris dans le domaine d'application de la présente norme. Les sèche-linge à tambour mis à la disposition commune des utilisateurs dans des immeubles d'habitation ou dans les laveries automatiques sont des exemples de tels appareils. Dans la mesure du possible, la présente norme traite des dangers ordinaires présentés par les appareils, encourus par toutes les personnes.
Cependant, elle 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.
L'attention est attirée sur le fait que
- pour les appareils destinés à être utilisés dans des véhicules ou à bord de navires ou d'avions, des exigences supplémentaires peuvent être nécessaires;
- 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 et par les organismes nationaux responsables de l'alimentation en eau.
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 équipés de dispositifs générant de la vapeur dans lesquels la vapeur est produite à une pression dépassant 50 kPa.
Cette neuvième édition annule et remplace la huitième édition parue en 2019. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le texte a été aligné sur l'IEC 60335-1:2020;
b) certaines notes ont été converties en texte normatif (Article 1, Annexe AA);
c) de nouvelles définitions relatives au type d'appareil sont mises en œuvre (3.5.102, 3.5.103, 3.5.104);
d) des exigences spécifiques ont été ajoutées au 22.51 pour la commande à distance;
e) des exigences spécifiques ont été ajoutées à l'Article 24 pour les condensateurs permanents de moteurs;
f) de nouvelles modifications ont été apportées à l'Annexe R;
g) les exigences relatives aux appareils qui utilisent des fluides frigorigènes inflammables ont été mises à jour à l'Article 21 et à l'Article 22 de l'Annexe AA;
h) de nouvelles exigences relatives au matériel électrique "n" non producteur d'étincelles sont mises en œuvre à l'Annexe BB.
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: 29-Jan-2024
• ICS: 13.120 - Domestic safety
• ICS: 97.060 - Laundry appliances
• Technical Committee: TC 61 - Safety of household and similar electrical appliances
• Drafting Committee: MT 37 - TC 61/MT 37
• Current Stage: PPUB - Publication issued
• Start Date: 23-Feb-2024
• Completion Date: 30-Jan-2024

Relations

• Revises: IEC 60335-2-11:2019 - Household and similar electrical appliances - Safety - Part 2-11: Particular requirements for tumble dryers
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60335-2-11 ®
Edition 9.0 2024-01
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-11: Particular requirements for tumble dryers
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC 60335-2-11 ®
Edition 9.0 2024-01
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-11: Particular requirements for tumble dryers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120, 97.060 ISBN 978-2-8322-8225-0
– 2 – IEC 60335-2-11:2024 CMV © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references. 9
3 Terms and definitions . 9
4 General requirement . 11
5 General conditions for the tests . 11
6 Classification . 11
7 Marking and instructions . 11
8 Protection against access to live parts . 12
9 Starting of motor-operated appliances . 13
10 Power input and current . 13
11 Heating . 13
12 Void Charging of metal-ion batteries . 14
13 Leakage current and electric strength at operating temperature . 14
14 Transient overvoltages. 15
15 Moisture resistance . 15
16 Leakage current and electric strength . 15
17 Overload protection of transformers and associated circuits . 15
18 Endurance . 15
19 Abnormal operation . 16
20 Stability and mechanical hazards . 17
21 Mechanical strength . 18
22 Construction . 18
23 Internal wiring . 21
24 Components . 21
25 Supply connection and external flexible cords . 22
26 Terminals for external conductors . 22
27 Provision for earthing . 22
28 Screws and connections . 22
29 Clearances, creepage distances and solid insulation . 22
30 Resistance to heat and fire . 22
31 Resistance to rusting . 23
32 Radiation, toxicity and similar hazards . 23
Annexes . 24
Annex R (normative) Software evaluation . 25
Annex AA (normative) Tumble dryers that use a refrigerating system incorporating
sealed motor-compressors for carrying out the drying process Heat pump type tumble
dryers . 26
Annex BB (normative) Equipment protection by type of protection "n" Non-sparking "n"
electrical apparatus . 34
Bibliography . 36
List of comments . 37

Figure 101 – Probe for measuring surface temperatures . 23

Table 101 – Maximum temperature rises for accessible external surfaces under normal
operating conditions with the door closed . 14
Table 202 – Refrigerant flammability parameters .
Table AA.1 – Maximum temperatures for motor-compressors . 29

– 4 – IEC 60335-2-11:2024 CMV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-11: Particular requirements for tumble dryers

FOREWORD
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This commented version (CMV) of the official standard IEC 60335-2-11:2024 edition 9.0
allows the user to identify the changes made to the previous IEC 60335-2-11:2019
edition 8.0. Furthermore, comments from IEC TC 61 experts are provided to explain the
reasons of the most relevant changes, or to clarify any part of the content.
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.

IEC 60335-2-11 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This ninth edition cancels and replaces the eighth edition published in 2019. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) alignment with IEC 60335-1:2020;
b) conversion of some notes to normative text (Clause 1, Annex AA);
c) implement new definitions to type of appliances (3.5.102, 3.5.103, 3.5.104);
d) specific requirements have been added in 22.51 for remote operation;
e) specific requirements have been added in Clause 24 for motor running capacitors;
f) new modifications in Annex R;
g) update of requirements for appliance that use flammable refrigerants in Clause 21 and
Clause 22 of Annex AA;
h) implement new requirements for non-sparking "
...

IEC 60335-2-11 ®
Edition 9.0 2024-01
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-11:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-11: Particular requirements for tumble dryers

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
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copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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About the IEC
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International Standards for all electrical, electronic and related technologies.

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IEC 60335-2-11 ®
Edition 9.0 2024-01
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-11:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-11: Particular requirements for tumble dryers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120, 97.060 ISBN 978-2-8322-8230-4

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 60335-2-11:2024 EXV © IEC 2024

CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 10
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 . 33
8 Protection against access to live parts . 42
9 Starting of motor-operated appliances . 44
10 Power input and current . 45
11 Heating . 47
12 Charging of metal-ion batteries . 53
13 Leakage current and electric strength at operating temperature . 55
14 Transient overvoltages . 57
15 Moisture resistance . 58
16 Leakage current and electric strength . 61
17 Overload protection of transformers and associated circuits . 63
18 Endurance . 63
19 Abnormal operation . 63
20 Stability and mechanical hazards . 74
21 Mechanical strength . 77
22 Construction . 78
23 Internal wiring . 93
24 Components . 95
25 Supply connection and external flexible cords . 100
26 Terminals for external conductors . 108
27 Provision for earthing . 110
28 Screws and connections . 112
29 Clearances, creepage distances and solid insulation . 114
30 Resistance to heat and fire . 123
31 Resistance to rusting . 127
32 Radiation, toxicity and similar hazards . 127
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 . 164
Annex D (normative) Thermal motor protectors . 165
Annex E (normative) Needle-flame test . 166
Annex F (normative) Capacitors . 167
Annex G (normative) Safety isolating transformers . 169

Annex H (normative) Switches . 170
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 172
Annex J (normative) Coated printed circuit boards . 174
Annex K (informative) Overvoltage categories . 175
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 176
Annex M (informative) Pollution degree . 179
Annex N (normative) Proof tracking test . 180
Annex O (informative) Selection and sequence of the tests of Clause 30 . 181
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 186
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 188
Annex R (normative) Software evaluation . 191
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 . 205
Annex T (normative) UV-C radiation effect on non-metallic materials . 206
Annex U (normative) Appliances intended for remote communication through public
networks . 209
Annex AA (normative) Heat pump type tumble dryers . 213
Annex BB (normative) Non-sparking "n" electrical apparatus . 220
Bibliography . 221
Index of defined terms . 223

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 . 128
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 . 129
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 . 130
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 . 131
Figure 5 – Small part . 132
Figure 6 – Example of an electronic circuit with low-power points . 132
Figure 7 – Test finger nail . 133
Figure 8 – Flexing test apparatus . 134
Figure 9 – Constructions of cord anchorages . 135
Figure 10 – An example of parts of an earthing terminal .
...

IEC 60335-2-11 ®
Edition 9.0 2024-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-11: Particular requirements for tumble dryers

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-11: Exigences particulières pour les sèche-linge à tambour
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International Standards for all electrical, electronic and related technologies.

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IEC 60335-2-11 ®
Edition 9.0 2024-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –

Part 2-11: Particular requirements for tumble dryers

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-11: Exigences particulières pour les sèche-linge à tambour

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120, 97.060 ISBN 978-2-8322-8157-4

– 2 – IEC 60335-2-11:2024 © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 General requirement . 10
5 General conditions for the tests . 11
6 Classification . 11
7 Marking and instructions . 11
8 Protection against access to live parts . 12
9 Starting of motor-operated appliances . 12
10 Power input and current . 13
11 Heating . 13
12 Charging of metal-ion batteries . 14
13 Leakage current and electric strength at operating temperature . 14
14 Transient overvoltages . 14
15 Moisture resistance . 15
16 Leakage current and electric strength . 15
17 Overload protection of transformers and associated circuits . 15
18 Endurance . 15
19 Abnormal operation . 15
20 Stability and mechanical hazards . 17
21 Mechanical strength . 18
22 Construction . 18
23 Internal wiring . 20
24 Components . 21
25 Supply connection and external flexible cords . 22
26 Terminals for external conductors . 22
27 Provision for earthing . 22
28 Screws and connections . 22
29 Clearances, creepage distances and solid insulation . 22
30 Resistance to heat and fire . 22
31 Resistance to rusting . 23
32 Radiation, toxicity and similar hazards . 23
Annexes . 24
Annex R (normative) Software evaluation . 25
Annex AA (normative) Heat pump type tumble dryers . 26
Annex BB (normative) Non-sparking "n" electrical apparatus . 33
Bibliography . 34

Figure 101 – Probe for measuring surface temperatures . 23

Table 101 – Maximum temperature rises for accessible external surfaces under normal
operating conditions with the door closed . 14
Table AA.1 – Maximum temperatures for motor-compressors . 28

– 4 – IEC 60335-2-11:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-11: Particular requirements for tumble dryers

FOREWORD
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