IEC 60335-2-11:2000

INTERNATIONAL IEC
STANDARD 60335-2-11
Fifth edition
2000-02
Safety of household and similar electrical
appliances –
Part 2-11:
Particular requirements for tumble dryers
Sécurité des appareils électrodomestiques et analogues –
Partie 2-11:
Règles particulières pour les sèche-linge à tambour

Reference number
Numbering
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available. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the
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thus ensuring that the content reflects current technology.
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Terminology, graphical and letter symbols
For general terminology, readers are referred to IEC 60050: International
Electrotechnical Vocabulary (IEV).
For graphical symbols, and letter symbols and signs approved by the IEC for
general use, readers are referred to publications IEC 60027: Letter symbols to be
used in electrical technology, IEC 60417: Graphical symbols for use on equipment.
Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols
for diagrams.
* See web site address on title page.

INTERNATIONAL IEC
STANDARD 60335-2-11
Fifth edition
2000-02
Safety of household and similar electrical
appliances –
Part 2-11:
Particular requirements for tumble dryers
Sécurité des appareils électrodomestiques et analogues –
Partie 2-11:
Règles particulières pour les sèche-linge à tambour

© IEC 2000 ⎯ Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
P
International Electrotechnical Commission
For price, see current catalogue

– 2 – 60335-2-11 © IEC:2000(E)

CONTENTS
Page
FOREWORD . 3

Clause
1 Scope . 5

2 Definitions. 6

3 General requirement . 6
4 General conditions for the tests . 6
5 Void . 6
6 Classification . 6
7 Marking and instructions. 7
8 Protection against access to live parts. 7
9 Starting of motor-operated appliances . 8
10 Power input and current . 8
11 Heating . 8
12 Void . 9
13 Leakage current and electric strength at operating temperature . 9
14 Void . 9
15 Moisture resistance . 9
16 Leakage current and electric strength. 10
17 Overload protection of transformers and associated circuits. 10
18 Endurance .10
19 Abnormal operation . 10
20 Stability and mechanical hazards. 11
21 Mechanical strength . 12
22 Construction. 12
23 Internal wiring . 13
24 Components. 13
25 Supply connection and external flexible cords. 13

26 Terminals for external conductors. 13
27 Provision for earthing . 13
28 Screws and connections. 13
29 Creepage distances, clearances and distances through insulation . 13
30 Resistance to heat, fire and tracking. 14
31 Resistance to rusting. 14
32 Radiation, toxicity and similar hazards . 14
Annex A Normative references . 16
Figure 101 – Probe for measuring surface temperature. 15

60335-2-11 © IEC:2000(E) – 3 –

INTERNATIONAL ELECTROTECHNICAL COMMISSION

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SAFETY OF HOUSEHOLD AND SIMILAR

ELECTRICAL APPLIANCES –
Part 2-11: Particular requirements for tumble dryers

FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
This part of International Standard IEC 60335 has been prepared by IEC technical committee 61:
Safety of household and similar electrical appliances.
This fifth edition cancels and replaces the fourth edition published in 1993, amendment 1
(1998) and amendment 2 (1999). This fifth edition constitutes a technical revision.

The text of this standard is based on the fourth edition, amendments 1 and 2 and the
following documents:
FDIS Report on voting
61/1646/FDIS 61/1742/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This part 2 is intended to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the third edition (1991) of that standard.

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This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert it into the IEC standard: Safety requirements for electric tumble dryers (fourth edition).

Where a particular subclause of part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. Where this standard states "addition", "modification" or "replacement",
the relevant text in part 1 should be adapted accordingly.

NOTE 1 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 2.
NOTE 2 Subclauses and figures which are additional to those in part 1 are numbered starting from 101.
The following differences exist in some countries:
– 2.2.9: Different size cloths are used (USA).
– 6.2: Tumble dryers are not required to be IPX4 (USA).
– 7.1: An instruction concerning cleaning the lint trap is to be marked on the dryer in letters not less than 8 mm
high and is to be conspicuous when the dryer door is open (Australia, New Zealand).
– 7.12: Actual articles of clothing can be specified instead and warnings are required to be marked on the
appliance regarding the use of chemicals for cleaning (USA).
– 11.2: Other methods are used for conducting heating tests on tumble dryers (USA).
– 11.7: This test is continued until steady conditions are established and different criteria are used to determine
when steady conditions are reached (USA).
– 19.4: The test is conducted differently (USA).
– 19.9: A running overload test is required on automatically controlled tumble dryers (USA).
– 20.101: The requirement is applicable to door openings with a dimension exceeding 20 cm (Norway).
– 20.102: When considering accessibility to rotating drums, the maximum drum volume is 60 dm and the
maximum door opening is 20 cm (USA).
– 20.103: This test is not conducted (USA).
– 22.103: Different methods are used to evaluate the stability of stacked tumble dryers and washing machines
(USA).
– 27.1: Earthing terminals and contacts are permitted to be electrically connected to the neutral conductor of a
tumble dryer (USA)
A bilingual version of this standard may be issued at a later date.

60335-2-11 © IEC:2000(E) – 5 –

SAFETY OF HOUSEHOLD AND SIMILAR

ELECTRICAL APPLIANCES –
Part 2-11: Particular requirements for tumble dryers

1 Scope
This clause of part 1 is replaced by:
This standard deals with the safety of electric tumble dryers intended for household and
similar purposes and having a rated voltage not more than 250 V for single-phase appliances
and 480 V for other appliances.
NOTE 1 This standard applies to the drying function of appliances having both a washing and drying function.
Appliances not intended for normal household use but which nevertheless may be a source of
danger to the public, such as appliances for communal use in blocks of flats or in laundrettes,
are also within the scope of this standard.
So far as is practicable, this standard deals with the common hazards presented by appliances
which are encountered by all persons in and around the home. However, this standard does not
in general take into account
– the use of appliances by young children or infirm persons without supervision;
– playing with the appliance by young children.
NOTE 2 Attention is drawn to the fact that:
– For appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– For appliances intended to be used in tropical countries, special requirements may 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 and similar authorities.
NOTE 3 – This standard does not apply to:
– appliances intended exclusively for industrial or commercial 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).

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2 Definitions
This clause of part 1 is applicable except as follows:

Replacement:
2.2.9
normal operation
the tumble dryer is operated with the drum filled with textile material having a mass in the dry

condition equal to the maximum load stated in the instructions for use.

The textile material consists of pre-washed double-hemmed cotton sheets approximately

2 2
70 cm × 70 cm having a mass between 140 g/m and 175 g/m in the dry condition. The textile
material is soaked with water having a temperature of 25 °C ± 5 °C and a mass equal to that of
the textile material.
If the drying function can automatically follow the washing function in a washing machine, the
drum is not separately loaded. The tumble dryer is operated with the maximum quantity of
textile material stated in the instructions for use for the combined washing-drying cycle.
NOTE Cotton having a water content not exceeding 10 % is considered as being in the dry condition.
Cotton conditioned for 24 h in still air having a temperature of 20 °C ± 2 °C, a relative humidity between 60 % and
70 % and a pressure between 860 mbar and 1 060 mbar, will contain approximately 7 % of water.
2.101
tumble dryer
an appliance in which textile material is dried by tumbling in a rotating drum through which
heated air is blown
2.102
condensation-type tumble dryer
a tumble dryer in which the air used for the drying process is dehumidified by cooling.
3 General requirement
This clause of part 1 is applicable.
4 General conditions for the tests
This clause of part 1 is applicable.

5 Void
6 Classification
This clause of part 1 is applicable, except as follows:
6.2 Addition:
Appliances shall be at least IPX4.

60335-2-11 © IEC:2000(E) – 7 –

7 Marking and instructions
This clause of part 1 is applicable, except as follows:

Addition:
7.10
If the off position is only indicated by letters, the word "off" shall be used.

7.12 Addition:
The instructions for use shall state
– the maximum mass in kilogrammes of dry textile material for which the appliance is
designed;
– that the tumble dryer is not to be used if chemicals have been used for cleaning.
– that there has to be adequate ventilation to avoid the back flow of gases into the room from
appliances burning other fuels, including open fires, when operating the tumble dryer.
NOTE This instruction is not required if the tumble dryer discharges the air back into the room.
7.12.1 Addition:
The instructions for use shall state
– that the lint trap is to be cleaned frequently, if applicable;
– that lint is not to be allowed to accumulate around the tumble dryer (not applicable for
appliances intended to be vented to the exterior of the building);
–for condensation-type tumble dryers intended to be connected to the water mains:
• the maximum permissible inlet water pressure, in pascals or bars;
• the minimum permissible inlet water pressure, in pascals or bars, if necessary for
correct operation;
• the appliance is to be connected to the water mains using a new hose-set and old hose-
sets should not be reused.
NOTE 1 This instruction is not required if the hose is permanently attached to the appliance.
– for appliances with ventilation openings in the base, that a carpet must not obstruct the
openings;
– that exhaust air must not be discharged into a flue which is used for exhausting fumes from
appliances burning gas o
...