IEC 60335-2-24:2020

IEC 60335-2-24 ®
Edition 8.0 2020-09
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-24: Particular requirements for refrigerating appliances, ice-cream
appliances and ice-makers
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IEC 60335-2-24 ®
Edition 8.0 2020-09
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –

Part 2-24: Particular requirements for refrigerating appliances, ice-cream

appliances and ice-makers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.040.30 ISBN 978-2-8322-8879-5

– 2 – IEC 60335-2-24:2020 CMV © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 7

1 Scope . 8
2 Normative references. 9
3 Terms and definitions . 10
4 General requirement . 13
5 General conditions for the tests . 13
6 Classification . 15
7 Marking and instructions . 15
8 Protection against access to live parts . 20
9 Starting of motor-operated appliances . 20
10 Power input and current . 20
11 Heating . 21
12 Void . 24
13 Leakage current and electric strength at operating temperature . 24
14 Transient overvoltages. 24
15 Moisture resistance . 25
16 Leakage current and electric strength . 26
17 Overload protection of transformers and associated circuits . 27
18 Endurance . 27
19 Abnormal operation . 27
20 Stability and mechanical hazards . 30
21 Mechanical strength . 32
22 Construction . 33
23 Internal wiring . 44
24 Components . 45
25 Supply connection and external flexible cords . 47
26 Terminals for external conductors . 48
27 Provision for earthing . 48
28 Screws and connections . 49
29 Clearances, creepage distances and solid insulation . 49
30 Resistance to heat and fire . 49
31 Resistance to rusting . 50
32 Radiation, toxicity and similar hazards . 50

Annexes . 53
Annex C (normative) Ageing test on motors . 53
Annex D (normative) Thermal motor protectors . 53
Annex P (informative) Guidance for the application of this standard to appliances used
in warm damp equable tropical climates . 53

Annex AA (normative) Locked-rotor test of fan motors . 54
Annex BB (informative) Method for accumulation of frost . 56
Annex CC (normative) Non-sparking “n” electrical apparatus and test conditions for “dc”
devices . 59
Annex DD (informative) Sound manufacturing practice for compression-type appliances
which use flammable refrigerant . 61
Annex EE (normative) Test for material encasing and in contact with thermal insulation . 62

Bibliography . 64
List of comments . 65

Figure 101 – Apparatus for spillage test . 51
Figure 102 – Scratching tool tip details . 52
Figure AA.1 – Supply circuit for locked-rotor test of a single-phase fan motor . 55
Figure BB.1 – Diagram of apparatus for water evaporation and for accumulation of frost . 57
Figure BB.2 – Apparatus for water evaporation and for accumulation of frost . 58
Figure EE.1 – Arrangement of the test specimen and burner . 63

Table 101 – Maximum temperatures for motor-compressors . 22
Table 102 – Refrigerant flammability parameters . 41

– 4 – IEC 60335-2-24:2020 CMV © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-24: Particular requirements for refrigerating appliances,
ice-cream appliances and ice-makers

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
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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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 60335-2-24:2020 edition 8.0
allows the user to identify the changes made to the previous edition IEC 60335-2-
24:2010+AMD1:2012+AMD2:2017 CSV edition 7.2. Futhermore, comments from IEC SC
61C 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.

This part of IEC 60335 has been prepared by subcommittee 61C: Safety of refrigeration
appliances for household and commercial use, of IEC Technical Committee 61: Safety of
household and similar electrical appliances.
This eighth edition cancels and replaces the seventh edition published in 2010,
Amendment 1:2012 and Amendment 2:2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– aligns the text with IEC 60335-1, Ed 5.2;
– some notes have been converted to normative text or deleted (4, 5.2, 5.7, 7.1, 7.6, 7.10,
7.12, 19.1, 19.101, 19.102, 20.101, 20.102, 20.103, 20.104, 21, 22.7, 22.33, 22.101,
22.102, 22.103, 22.107, 22.108, 22.109, 30.1);
– normative references and associated text have been updated (2, 22.108, 22.109,
Table 102, Annex CC);
– definition of free space has been clarified (3.6.104);
– measurement of the input current of refrigerating appliances using inverter driven motor-
compressors is included (10.2);
– compatibility tests for winding insulation of motor-compressors used with different types of
refrigerants and oils have been introduced (22.9);
– requirements for inadvertent contact points between uncoated aluminium pipes and
copper pipes have been updated (22.111);
– testing of accessible glass panels has been clarified (22.116);
– in refrigerating appliances, requirements for material encasing and in contact with thermal
insulation have been introduced and consequential text has been deleted (22.117, 30.2,
30.2.101, Annex EE);
– requirements for motor running capacitors have been updated (24.5, 24.8);
– the locked rotor test for fan motors has been clarified (Annex AA).
The text of this International Standard is based on the following documents:
FDIS Report on voting
61C/861/FDIS 61C/863/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.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60335 series, under the general title Household and similar
electrical appliances – Safety, can be found on the IEC website.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fifth edition (2010) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for refrigerating
appliances, ice-cream appliances and ice-makers.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.

– 6 – IEC 60335-2-24:2020 CMV © IEC 2020
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 3 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 4 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.
– 22.101： E12 and E17 lamp holders are checked as specified for E14 and B15 lamp holders. E26 lamp holder
is checked as specified for E27 and B22 lamp holders (Japan).
– 22.110：For unsealed glass tube heaters, the temperature requirements are different (Japan).
– 22.117: Only the first two dashed items in the first paragraph of the requirement are allowed (Australia and
New Zealand).
The contents of the corrigendum of August 2021 have been included in this copy.
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.
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 an appliance within the scope of this standard also incorporates functions that are covered
by another part 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.
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 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.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that 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 the standard.
– 8 – IEC 60335-2-24:2020 CMV © IEC 2020
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-24: Particular requirements for refrigerating appliances,
ice-cream appliances and ice-makers

1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of the following appliances, their rated voltage
being not more than 250 V for single-phase appliances, 480 V for other appliances and 24 V
DC for appliances when battery operated:
– refrigerating appliances for household and similar use;
– ice-makers incorporating a motor-compressor and ice-makers intended to be
incorporated in frozen food storage compartments;
– refrigerating appliances and ice-makers for use in camping, touring caravans and boats
for leisure purposes.
These appliances may be operated from the mains, from a separate battery or operated either
from the mains or from a separate battery.
This standard also deals with the safety of ice-cream appliances intended for household use,
their rated voltage being not more than 250 V for single-phase appliances and 480 V for
other appliances.
It also deals with compression-type appliances for household and similar use, which use
flammable refrigerants.
This standard does not cover features of the construction and operation of those
refrigerating appliances which are dealt with in other IEC standards.
Refrigerating appliances not intended for normal household use but which nevertheless may
be a source of danger to the public, such as
− refrigerating appliances used in staff kitchen areas in shops, offices and other working
environments,
− refrigerating appliances used in farm houses and by clients in hotels, motels and other
residential type environments,
− refrigerating appliances used in bed and breakfast type environments, and
− refrigerating appliances used in catering and similar non-retail applications
are within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by
appliances that are encountered by all persons in and around the home. 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 1 Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may can
be necessary;
– in many countries, additional requirements are specified by national health authorities, the national authorities
responsible for the protection of labour, the national water supply authorities and similar authorities.
NOTE 2 This standard does not apply to
– appliances intended to be used in the open air;
– appliances designed 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 a battery intended as a power supply for the refrigerating function;
– appliances assembled on site by the installer;
– appliances with remote motor-compressors;
– motor-compressors (IEC 60335-2-34);
– commercial dispensing appliances and vending appliances (IEC 60335-2-75);
– commercial refrigerators and freezers used for the display of food products, including
beverages, for retail sale refrigerating appliances and ice-makers with an incorporated or
remote refrigerant unit or motor-compressor (IEC 60335-2-89);
– commercial ice-cream appliances professional ice-cream makers (IEC 60335-2-118).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60068-2-11:1981, Basic environmental testing procedures – Part 2-11: Tests – Test Ka:
Salt mist
IEC 60079-1:2014, Explosive atmospheres – Part 1: Equipment protection by flameproof
enclosures "d"
IEC 60079-7:2015, Explosive atmospheres – Part 7: Equipment protection by increased
safety "e"
IEC 60079-7:2015/AMD1:2017
IEC 60079-15:20102017, Explosive atmospheres – Part 15: Equipment protection by type of
protection "n"
IEC 60079-20-1, Explosive atmospheres – Part 20-1: Material characteristics for gas and
vapour classification – Test methods and data
______________
There exists a consolidated edition 5.1:2017 that includes edition 5 and its Amendment 1.

– 10 – IEC 60335-2-24:2020 CMV © IEC 2020
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
IEC60335-2-5:2002, Household and similar electrical appliances – Safety – Part 2-5:
Particular requirements for dishwashers
IEC 60335-2-34:20022012, Household and similar electrical appliances – Safety – Part 2-34:
Particular requirements for motor-compressors
IEC 60335-2-34:2012/AMD1:2015
IEC 60335-2-34:2012/AMD2:2016
IEC 60335-2-34:2021, Household and similar electrical appliances – Safety – Part 2-34:
Particular requirements for motor-compressors
IEC 60598-1:2014, Luminaires – Part 1: General requirements and tests
IEC 60598-1:2014/AMD1:2017
IEC 60695-11-3:2012, Fire hazard testing – Part 11-3: Test flames – 500 W flames –
Apparatus and confirmational test methods
IEC 60695-11-20:2015, Fire hazard testing – Part 11-20: Test flames – 500 W flame test
method
IEC 60730-2-6:2015, Automatic electrical controls – Particular requirements for automatic
electrical pressure sensing controls including mechanical requirements
IEC 60730-2-6:2015/AMD1:2019
IEC 60851-4:2016, Winding wires – Test methods – Part 4: Chemical properties
ISO 209:2007, Aluminium and aluminium alloys – Chemical composition
ISO 817:2014, Refrigerants – Designation and safety classification
ISO 817:2014/AMD1:2017
ISO 4126-2:20032018, Safety devices for protection against excessive pressure – Part 2:
Bursting disc safety devices
ISO 5149-1:2014, Refrigerating systems and heat pumps – Safety and environmental
requirements – Part 1: Definitions, classification and selection criteria
ISO 5149-1:2014/AMD1:2015
ISO 7010:20112019, Graphical symbols – Safety colours and safety signs – Registered safety
signs
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
______________
There exists a consolidated edition 5.2:2016 that includes edition 5 and its Amendment 1 and Amendment 2.
There exists a consolidated edition 8.1:2017 that includes edition 8 and its Amendment 1
There exists a consolidated edition 3.1:2019 that includes edition 3 and its Amendment 1

3.1 Definitions relating to physical characteristics
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions from 3.1.9.101 to 3.1.9.104.
3.1.9.101
normal operation of a refrigerating appliance
operation at an ambient temperature in accordance with 5.7, empty, with the doors and lids
closed. User-adjustable temperature control devices which control the operation of the motor-
compressor in compression-type appliances are short-circuited or otherwise rendered
inoperative
3.1.9.102
normal operation of an ice-maker
operation at an ambient temperature in accordance with 5.7, with the supply water at a
temperature of 15 °C ± 2 °C
3.1.9.103
normal operation of an incorporated ice-maker
operation at the normal temperature of the frozen food storage compartment, with the supply
water at a temperature of 15 °C ± 2 °C
3.1.9.104
normal operation of an ice-cream appliance
operation of the appliance using the maximum quantity of the mixture of ingredients indicated
in the instructions; the mixture used being that which gives the most unfavourable results, the
mixture being at an initial temperature of 23 °C ± 2 °C
3.5 Definitions relating to types of appliances
3.5.101
refrigerating appliance
enclosed thermally insulated appliance of suitable volume for household use, cooled by an
incorporated device and having one or more compartments intended for the preservation of
foodstuffs including cooling of beverages
3.5.102
compression-type appliance
appliance in which refrigeration is effected by the vaporization at low pressure in a heat
exchanger (evaporator) of a liquid refrigerant, the vapour thus formed being restored to the
original state by mechanical compression at a higher pressure and subsequent cooling in
another heat exchanger (condenser)
3.5.103
ice-maker
appliance in which ice is made by freezing water by a device consuming electrical energy and
having a compartment for storing the ice
3.5.104
incorporated ice-maker
ice-maker specially designed to be incorporated into a frozen food storage compartment and
without independent means for freezing water

– 12 – IEC 60335-2-24:2020 CMV © IEC 2020
3.5.105
absorption-type appliance
appliance in which refrigeration is effected by the evaporation in a heat exchanger
(evaporator) of a liquid refrigerant, in the liquid state, the resulting vapour being then
absorbed by an absorbent medium from which it is subsequently expelled at a higher partial
vapour pressure by heating and liquefied by cooling in another heat exchanger (condenser)
3.5.106
ice-cream appliance
compression-type appliance which is used to make ice-cream
3.6 Definitions relating to parts of an appliance
3.6.101
heating system
heating element with associated components such as timers, switches, thermostats and
other controls
3.6.102
condenser
heat exchanger in which, after compression, vaporized refrigerant is liquefied by losing heat
to an external cooling medium
3.6.103
evaporator
heat exchanger in which, after pressure reduction, the liquid refrigerant is vaporized by
absorbing heat from the medium to be refrigerated
3.6.104
free space
space with a volume exceeding 60 l where a child can be entrapped and which is accessible
after opening any door, lid or drawer and removing any detachable internal part, including
shelves, containers or removable drawers which are themselves only accessible after opening
any door or lid
NOTE In calculating the volume, a space with any single dimension not exceeding 150 mm or
any two orthogonal dimensions, each of which do not exceed 200 mm, is ignored.
Note 1 to entry: Evaluation of the ignored volume can be checked by applying a 150 mm ± 0,5 mm diameter
sphere or a square with 200 ± 0,5 mm side without appreciable force. The volume can be ignored if the sphere or
square cannot fit inside. 1
3.6.105
transcritical refrigeration system
refrigeration system where the pressure in the high pressure side is above the pressure where
the vapour and liquid states of the refrigerant can coexist in thermodynamic equilibrium
3.6.106
gas cooler
heat exchanger in which, after compression, the refrigerant is cooled down, by transferring
heat to an external cooling medium, without changing state
Note 1 to entry: A gas cooler is normally used in transcritical refrigeration systems.
3.7 Definitions relating to safety components
3.7.101
bursting disc
disc or foil which bursts at a predetermined pressure to reduce a pressure in a refrigeration
system
3.7.102
pressure relief device
pressure sensing device, intended to reduce pressure automatically when pressures within
the refrigeration system exceed the setting pressure of the device
3.8 Definitions relating to miscellaneous matters
3.8.101
design pressure
DP
gauge pressure that has been assigned to the high-pressure side of a transcritical
refrigeration system
3.8.102
flammable refrigerant
refrigerant with a flammability classification of A2L, A2 or A3 in accordance with ISO 817
Note 1 to entry: For refrigerant blends which have more than one flammability classification, the most
unfavourable classification is taken for the purposes of this definition.
4 General requirement
This clause of Part 1 is applicable except as follows.
Addition:
NOTE 101 The use of flammable refrigerants involves additional hazards which are not
associated with appliances using non-flammable refrigerants.
This standard addresses the hazards due to ignition of leaked flammable refrigerant by
potential ignition sources associated with the appliance.
The hazard due to ignition of leaked flammable refrigerant by an external potential ignition
source associated with the environment in which the appliance is installed is compensated by
the low probability of ignition.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.2 Addition:
At least one additional specially prepared sample is required for the tests of 22.107.
NOTE 101 Unless the motor-compressor conforms to IEC 60335-2-34, at least one additional
specially prepared sample may be is required for the test of 19.1.
NOTE 102 At least one additional sample of the fan motor and its, thermal motor protector
combination may be required for the test of 19.1.
NOTE 103 The test of 22.7 may be performed on separate samples.
NOTE 104 Due to the potentially hazardous nature of the tests of 22.107, 22.108 and 22.109,
special precautions may need to be taken when performing the tests.

– 14 – IEC 60335-2-24:2020 CMV © IEC 2020
5.3 Addition:
Before starting the tests,
– ice-cream appliances are operated empty at rated voltage for 1 h, or for the maximum
setting of an incorporated timer, whichever is shorter;
– other compression-type appliances shall be operated at rated voltage for at least 24 h,
then switched off and left to stand for at least 12 h.
The test of 11.102 is carried out immediately after the tests of Clause 13.
The test of 15.105 is carried out immediately after the test of 11.102.
The tests of 15.101.1, 15.101.2, 15.103 and 15.104 are carried out immediately after the test
of 15.2.
5.4 Replacement:
Tests are carried out using each source of energy (electricity, gas or other fuel) in turn. Gas
appliances are supplied at the appropriate rated pressure.
Tests are additionally carried out with all combinations of energy sources supplied
simultaneously unless this is prevented by interlocking devices.
5.7 Addition:
For ice-cream appliances, tests specified in Clauses 10, 11 and 13 are carried out at an
ambient temperature of 23 °C ± 2 °C.
For other appliances, tests specified in Clauses 10, 11, 13 and Subclause 19.103 are carried
out at an ambient temperature of
− 32 °C ± 1 °C on appliances of extended temperate (SN) and temperate (N) classes;
− 38 °C ± 1 °C on appliances of subtropical (ST) class;
− 43 °C ± 1 °C on appliances of tropical (T) class.
Before starting these tests, the appliance with the doors or lids open is brought to within 2 K
of the ambient temperature specified.
Appliances classified for several climatic classes are tested at the ambient temperature
relevant to the highest climatic class.
Other tests are carried out at an ambient temperature of 20 °C ± 5 °C.
NOTE 101 Steady conditions are considered to be established when three successive readings
of the temperature, taken at approximately 60 min intervals, at the same point of any
operating cycle, do not differ by more than 1 K.
5.8.1 Addition:
Appliances which can be battery operated are tested at the more unfavourable polarity when
the supply terminals or terminations for the connection of the battery have no indication for
polarity.
5.9 Addition:
Appliances incorporating an ice-maker are tested with the ice-maker operating to give the
most unfavourable results.
5.10 Addition:
For the tests of 22.107, 22.108 and 22.109, the appliance is empty and installed as outlined
below:
Built-in appliances are installed in accordance with the instructions for installation.
Other appliances are placed in a test enclosure, the walls enclosing the appliance as near to
all its sides and the top of the appliance as possible, unless the manufacturer indicates in the
instructions for installation that a free distance shall be observed from the walls or the ceiling,
in which case this distance is observed during the test.
NOTE 101 Commonly available fixing hardware, such as screws and bolts, need not be delivered with a fixed
appliance.
5.101 Appliances which are constructed so that an ice-maker may be incorporated are
tested with the intended ice-maker.
5.102 Compression-type appliances with heating systems and Peltier-type appliances
are tested as combined appliances.
5.103 Compression-type appliances which use flammable refrigerants and which,
according to the instructions, may be used with other electrical appliances inside a food
storage compartment are tested with such recommended appliances incorporated and being
operated as in normal use.
NOTE Examples of such electrical appliances are ice-cream makers and deodorizers.
6 Classification
This clause of Part 1 is applicable except as follows.
6.101 Appliances, other than ice-cream appliances, shall be of one or more of the following
climatic classes:
– appliances of extended temperate class (SN);
– appliances of temperate class (N);
– appliances of subtropical class (ST);
– appliances of tropical class (T).
Compliance is checked by inspection.
NOTE The climatic classes are specified in IEC 62552-1:2015.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.

– 16 – IEC 60335-2-24:2020 CMV © IEC 2020
7.1 Addition:
Appliances shall also be marked with
– the power input, in watts, of heating systems, if greater than 100 W;
– the defrosting input, in watts, if greater than the input corresponding to the rated power
input;
– rated power input in watts or rated current in amperes, except that compression-type
appliances, other than ice-cream appliances, shall be marked with the rated current in
amperes;
– the letters SN, N, ST or T indicating the climatic class of the appliance;
– the maximum rated wattage of lamps, in watts (not applicable if the lamps can only be
replaced by the manufacturer or its service agent, together with a part of the appliance);
– the total mass of the refrigerant;
NOTE 101 For absorption-type appliances using ammonia, the total mass of the refrigerant is considered to be
the mass of ammonia used.
– for a single component refrigerant, at least one of the following:
• the chemical name;
• the chemical formula;
• the refrigerant number;
– for a blended refrigerant, at least one of the following:
• the chemical name and nominal proportion of each of the components;
• the chemical formula and nominal proportion of each of the components;
• the refrigerant number and nominal proportion of each of the components;
• the refrigerant number of the refrigerant blend;
– the chemical name or refrigerant number of the principal component of the insulation
blowing gas.
Refrigerant numbers are given in ISO 817.
For compression-type appliances, the defrosting power input in watts shall be marked
separately if the current corresponding to the defrosting power input is greater than the rated
current of the appliance.
Appliances which can be mains and battery operated shall be marked with the battery voltage.
Appliances which can be battery operated shall be marked with the type of battery,
distinguishing between rechargeable and non-rechargeable batteries, if necessary, unless the
type is irrelevant for the operation of the appliance.
The means provided for connection of any additional electrical supply shall be marked with
the voltage and nature of the supply.
Appliances having provision for an incorporated ice-maker shall be marked with the
maximum power input for an incorporated ice-maker, if greater than 100 W.
Ice-makers without automatic water level control shall be marked with the maximum
permissible water level.
Appliances shall be marked with details of the source of supply other than electrical, if any.

For compression-type refrigerating systems, the appliance shall also be marked with the
mass of the refrigerant for each separate refrigerant circuit.
Compression-type appliances which use flammable refrigerants shall be marked with the
symbol ISO 7010 W021 (2019-07).
Appliances employing R-744 in a transcritical refrigeration system shall be marked with the
substance of the following:
WARNING: System contains refrigerant under high pressure. Do not tamper with the
system. It must be serviced by qualified persons only.
Appliances employing R-744 in a transcritical refrigeration system shall be marked with
symbol ISO 7000- 1701 (2004-01).
7.6 Addition:
[symbol IEC 60417-5005
Plus; Positive polarity
(2002-10)]
[symbol IEC 60417-5006
Minus; Negative polarity
(2002-10)]
[symbol ISO 7010 W021 Warning; Risk of fire / Flammable
(2019-07)] materials
[symbol ISO 7000-1701
Pressure
(2004-01)]
NOTE The rules for warning signs in ISO 3864-1 apply to the co
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