IEC 60335-2-47:2021

Household and similar electrical appliances - Safety - Part 2-47: Particular requirements for commercial electric boiling pans

IEC 60335-2-47:2021 deals with the safety of electrically operated commercial boiling pans, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral, and 480 V for other appliances. These appliances are not intended for household and similar purposes. They are used for commercial processing of food in areas not open to the public, for example in kitchens of restaurants, canteens, hospitals and in commercial enterprises such as bakeries and butcheries. The electrical part of appliances making use of other forms of energy is also within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by these types of appliances.
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 and similar authorities;
– in many countries additional requirements are specified for pressure appliances.
This standard does not apply to:
– 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 for continuous mass production of food;
– battery-operated appliances.
This fifth edition cancels and replaces the fourth edition published in 2002, Amendment 1:2008 and Amendment 2:2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the text has been aligned with IEC 60335-1:2020;
b) some notes have been converted to normative text, modified or deleted (Clause 1, 7.15, 11.7, 9.101, 10.1, 11.4, 11.7, 19.101, 20.1, 22.101, 22.113, 23.3, 27.2);
c) clarifications to some test specifications have been made (15.1.1, 15.2, 20.1, 22.101, 22.102);
d) exclusion of battery-operated appliances and appliances used in areas open to the public (Clause 1);
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 2-47: Exigences particulières pour les marmites électriques à usage commercial

L'IEC 60335-2-47:2021 traite de la sécurité des marmites électriques à usage commercial, dont la tension assignée est inférieure ou égale à 250 V pour les appareils monophasés raccordés entre un conducteur de phase et le conducteur de neutre, et à 480 V pour les autres appareils. Ces appareils ne sont pas destinés à un usage domestique ou analogue. Ils sont destinés à un usage commercial pour le traitement des aliments dans des lieux non ouverts au public, par exemple dans les cuisines de restaurants, les cantines, les hôpitaux et les entreprises commerciales, telles que les boulangeries et les boucheries. La partie électrique des appareils qui utilisent d'autres formes d'énergie est également comprise dans le domaine d'application de la présente norme. Dans la mesure du possible, la présente norme traite des dangers courants que présentent ces types d'appareils.
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, par les organismes nationaux responsables de l'alimentation en eau et par des organismes similaires;
– dans de nombreux pays, des exigences supplémentaires sont spécifiées pour les appareils sous pression.
La présente norme ne s'applique pas:
– aux appareils prévus exclusivement pour des usages industriels;
– aux appareils destinés à être utilisés dans des locaux qui présentent des conditions particulières, telles que la présence d'une atmosphère corrosive ou explosive (poussière, vapeur ou gaz);
– aux appareils conçus pour la production continue en masse d'aliments;
– aux appareils alimentés par batteries.
Cette cinquième édition annule et remplace la quatrième édition parue en 2002, l'Amendement 1:2008 et l'Amendement 2:2017. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) alignement du texte sur l'IEC 60335-1:2020;
b) conversion en texte normatif, modification ou suppression de certaines notes (Article 1, 7.15, 11.7, 9.101, 10.1, 11.4, 11.7, 19.101, 20.1, 22.101, 22.113, 23.3, 27.2);
c) clarification de certaines modalités d'essais (15.1.1, 15.2, 20.1, 22.101, 22.102);
d) exclusion des appareils alimentés par batteries et des appareils utilisés dans des lieux ouverts au public (Article 1);
e) déplacement des instructions pour le nettoyage du 7.12.1 au 7.12;
f) introduction du 22.120;
g) alignement du texte de l'IEC 60335-2-47 sur les autres normes sous l'IEC/TC61/MT32.
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: 09-Feb-2025
• ICS: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances
• Technical Committee: TC 61 - Safety of household and similar electrical appliances
• Drafting Committee: MT 32 - TC 61/MT 32
• Current Stage: PPUB - Publication issued
• Start Date: 03-Nov-2021
• Completion Date: 19-Nov-2021

Relations

• Amended By: IEC 60335-2-47:2021/AMD1:2025 - Amendment 1 - Household and similar electrical appliances - Safety - Part 2-47: Particular requirements for commercial electric boiling pans
• Effective Date: 26-Apr-2024
• Revises: IEC 60335-2-47:2002/AMD2:2017 - Amendment 2 - Household and similar electrical appliances - Safety - Part 2-47: Particular requirements for commercial electric boiling pans
• Effective Date: 05-Sep-2023
• Revises: IEC 60335-2-47:2002/AMD1:2008 - Amendment 1 - Household and similar electrical appliances - Safety - Part 2-47: Particular requirements for commercial electric boiling pans
• Effective Date: 05-Sep-2023
• Revises: IEC 60335-2-47:2002 - Household and similar electrical appliances - Safety - Part 2-47: Particular requirements for commercial electric boiling pans
• Effective Date: 05-Sep-2023

Overview - IEC 60335-2-47:2021 (commercial electric boiling pans)

IEC 60335-2-47:2021 is the Part 2 safety standard that specifies particular requirements for commercially used electric boiling pans. It applies to electrically operated commercial boiling pans with rated voltages up to 250 V for single-phase appliances (phase-to-neutral) and 480 V for other appliances. The standard covers the electrical aspects of boiling pans (including appliances that use other energy sources for non-electrical functions) intended for commercial food processing in non-public areas - for example, kitchens in restaurants, canteens, hospitals, bakeries and butcheries. This consolidated edition (Edition 5.1) includes Amendment 1 (2025) and aligns the text with IEC 60335-1:2020.

Note: the standard explicitly excludes household appliances, appliances for continuous mass production, industrial-only devices, battery-operated appliances, and devices intended for locations with special atmospheres (corrosive or explosive). Additional national or sectoral requirements (e.g., for ships, aircraft, pressure vessels, public areas or health-authority rules) may also apply.

Key topics and technical requirements

This Part 2 supplements and modifies IEC 60335-1 and focuses on hazards typical for commercial boiling pans. Major topics include:

• Electrical safety and insulation - leakage current, electric strength and transient overvoltage requirements (see Clauses 13, 14, 16).
• Heating and temperature control - requirements for heating elements, surface temperature limits and temperature-measuring methods (Clause 11; Table 101).
• Moisture and splash resistance - tests and requirements for operation in kitchen environments (Clause 15).
• Abnormal operation and endurance - tests to simulate faults, overheating and long-term operation (Clauses 18–19).
• Mechanical safety and stability - construction, mechanical strength and stability to prevent tipping and mechanical hazards (Clauses 20–21).
• Construction and components - internal wiring, protective earthing, terminals, clearances/creepage and component selection (Clauses 22–29).
• Fire, heat and corrosion resistance - materials, resistance to rusting and resistance to heat/fire (Clauses 30–31).
• Radiation, toxicity and sanitation - limits and guidance to avoid toxic/radioactive hazards and facilitate cleaning (Clause 32; relocation of cleaning instructions to Clause 7.12).

Significant editorial and normative updates in this edition include alignment with IEC 60335-1:2020, conversion of several notes into normative text, clarified test specifications, and exclusion of battery-operated and public-area appliances.

Applications - who uses this standard

• Manufacturers and product designers of commercial electric boiling pans and related food-service appliances.
• Test laboratories and certification bodies performing safety conformity assessment and type testing.
• Regulatory authorities, procurement teams and safety engineers responsible for equipment selection and compliance in commercial kitchens, hospitals and institutional food operations.
• Compliance officers and risk assessors who need to map appliance hazards to regulatory or workplace safety requirements.

Related standards

• IEC 60335-1 (Household and similar electrical appliances - Safety - General requirements) - to be used in conjunction with this Part 2.
• Other Part 2 standards under IEC/TC 61 may apply where appliances incorporate additional functions; apply each relevant Part 2 as appropriate.

For compliance planning, use this standard alongside local health, labour and wiring regulations and consult the latest amendments and national deviations.

Standards Content (Sample)

IEC 60335-2-47 ®
Edition 5.0 2021-11
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-47: Particular requirements for commercial electric boiling pans

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IEC 60335-2-47 ®
Edition 5.0 2021-11
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-47: Particular requirements for commercial electric boiling pans
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.040.20 ISBN 978-2-8322-4075-5

– 2 – IEC 60335-2-47:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 2
1 Scope . 8
2 Normative references . 8
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 . 14
9 Starting of motor-operated appliances . 14
10 Power input and current . 14
11 Heating . 15
12 Void Charging of metal-ion batteries . 16
13 Leakage current and electric strength at operating temperature . 16
14 Transient overvoltages . 17
15 Moisture resistance . 17
16 Leakage current and electric strength . 19
17 Overload protection of transformers and associated circuits . 19
18 Endurance . 19
19 Abnormal operation . 19
20 Stability and mechanical hazards . 20
21 Mechanical strength . 21
22 Construction . 21
23 Internal wiring . 24
24 Components . 24
25 Supply connection and external flexible cords . 24
26 Terminals for external conductors . 25
27 Provision for earthing . 25
28 Screws and connections . 26
29 Clearances, creepage distances and solid insulation . 26
30 Resistance to heat and fire . 27
31 Resistance to rusting . 27
32 Radiation, toxicity and similar hazards . 27
Annexes . 28
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 32
Annex N (normative) Proof tracking test .
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 34
Bibliography . 35

Figure 103 101 – Probe for measuring surface temperatures . 27
Figure 102 – Identification of surfaces for temperature measurement . 28
Figure 101 103 – Splash apparatus. 30

Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 16
Table 102 – Assembling torques for screwed connections providing earthing continuity . 26

– 4 – IEC 60335-2-47:2021 RLV © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-47: Particular requirements for commercial electric boiling pans

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
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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
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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
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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 redline version of the official IEC Standard allows the user to identify the changes made to
the previous edition IEC 60335-2-47:2002+AMD1:2008+AMD2:2017 CSV. A vertical bar appears
in the margin wherever a change has been made. Additions are in green text, deletions are in
strikethrough red text.
IEC 60335-2-47 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This fifth edition cancels and replaces the fourth edition published in 2002, Amendment 1:2008
and Amendment 2:2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the text has been aligned with IEC 60335-1:2020;
b) some notes have been converted to normative text, modified or deleted (Clause 1, 7.15,
11.7, 9.101, 10.1, 11.4, 11.7, 19.101, 20.1, 22.101, 22.113, 23.3, 27.2);
c) clarifications to some test specifications have been made (15.1.1, 15.2, 20.1, 22.101,
22.102);
d) exclusion of battery-operated appliances and appliances used in areas open to the public
(Clause 1);
e) relocation of cleaning instructions from 7.12.1 to 7.12;
f) introduction of 22.120;
g) conciliation of the text of IEC 60335-2-47 with the other standards under IEC/TC61/MT32.
The text of this International Standard is based on the following documents:
FDIS Report on voting
61/6363/FDIS 61/6413/RVD
Full information on the voting for its approval 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.
A list of all parts in the IEC 60335 series, published under the general title Household and
similar electrical appliances – Safety, can be found on the IEC website.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
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.
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: Particular requirements for commercial electric boiling
pans.
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.
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;

– 6 – IEC 60335-2-47:2021 RLV © IEC 2021
– 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 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.
– 6.1: Class 01 appliances are allowed (Japan).
– 13.2: Leakage current limits are different (Japan).
– 16.2: Leakage current limits are different (Japan).

IMPORTANT – The "colour inside" logo on the cover page of this document 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:
https://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.
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 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.
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.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods for 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.

– 8 – IEC 60335-2-47:2021 RLV © IEC 2021
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-47: Particular requirements for commercial electric boiling pans

1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of electrically operated commercial boiling pans
not intended for household and similar use, their rated voltage being not more than 250 V for
single-phase appliances connected between one phase and neutral, and 480 V for other
appliances.
NOTE 101 These appliances are not intended for household and similar purposes. They are
used for commercial processing of food in areas not open to the public, for example in kitchens
of restaurants, canteens, hospitals and in commercial enterprises such as bakeries, and
butcheries, etc.
The electrical part of appliances making use of other forms of energy is also within the scope
of this standard.
As far as is practicable, this standard deals with the common hazards presented by these types
of appliances.
NOTE 102 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 the national health authorities,
the national authorities responsible for the protection of labour, the national water supply
authorities and similar authorities;
– in many countries additional requirements are specified for pressure appliances.
NOTE 103 This standard does not apply to:
– 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 for continuous mass production of food;
– battery-operated appliances.
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60584-1, Thermocouples – Part 1: EMF specifications and tolerances
ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel – Part 1:
Bolts, screws and studs with specified property classes – Coarse thread and fine pitch thread

ISO 3506-1, Fasteners – Mechanical properties of corrosion-resistant stainless steel fasteners
– Part 1: Bolts, screws and studs with specified grade and property classes
ISO 3506-2, Fasteners – Mechanical properties of corrosion-resistant stainless steel fasteners
– Part 2: Nuts with specified grade and property classes
ISO 3506-3, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 3: Set
screws and similar fasteners not under tensile stress
ISO 3506-4, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 4:
Tapping screws
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1 Definitions relating to physical characteristics
3.1.4 Addition:
Note 101 to entry: The rated power input is the sum of the power inputs of all the individual elements in the
appliance that can be on at one time; where there are several such combinations possible, that giving the highest
power input is used in determining the rated power input.
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions
The appliance is filled with water at 15 °C ± 5 °C to the indicated level.
Appliances with more than one programme are operated with the most severe programme. In
addition, any control intended to be operated by the user is set at maximum until the water boils
or the operating temperature is reached. The control is then adjusted to the lowest setting that
maintains boiling or the operating temperature. Lids and covers are in position and closed.
Motors and detachable electrical parts incorporated in the appliance are operated in the
intended manner under the most severe unfavourable conditions that can be expected in normal
use taking into account the manufacturer's instructions.
3.1.101
rated pressure
maximum working pressure assigned by the manufacturer to the pressurized parts of the
appliance
3.5 Definitions relating to types of appliances
3.5.101
boiling pan
appliance in which liquids contained in a vessel are heated to boiling point as part of a cooking
process
Note 1 to entry: The pressure within the vessel can exceed atmospheric pressure.
Note 2 to entry: The vessel may be fixed or tilting.
3.5.102
atmospheric boiling pan
boiling pan in which the pressure within the vessel does not differ significantly from
atmospheric pressure
– 10 – IEC 60335-2-47:2021 RLV © IEC 2021
3.5.103
jacketed boiling pan
appliance having a double-walled vessel, the space between the inner and outer walls
containing a heat transfer medium that is heated by heating elements
3.5.104
dual purpose boiling pan
appliance incorporating two vessels, the inner one being removable
Note 1 to entry: The appliance may be used with or without the removable vessel.
3.5.105
unjacketed boiling pan
appliance in which heating of the contents of the vessel is achieved by means other than via a
heat transfer jacket
3.106
rated pressure
the maximum working pressure assigned by the manufacturer to the pressurized parts of the
appliance
3.107
indicated level
a mark on the appliance to indicate the maximum liquid level for correct operation
3.108
installation wall
a special fixed construction containing supply facilities for appliances installed in conjunction
with it
3.6 Definitions relating to parts of an appliance
3.1096.101
functional surface
surface that is intentionally heated by an internal heat source and has to be hot to carry out the
function for which the appliance is intended
Note 1 to entry: An example is the heated sheath of a tubular heating element.
3.1106.102
adjacent surface
surface that is adjacent to a functional surface and which can become hot through conduction
3.8 Definitions relating to miscellaneous matters
3.8.101
indicated level
mark on the appliance to indicate the maximum liquid level for correct operation
3.8.102
installation wall
special fixed construction containing supply facilities for appliances installed in conjunction with
it
4 General requirement
This clause of Part 1 is applicable.

5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.5 Addition:
Tests are carried out with the vessel in the position of normal use for cooking.
5.10 Addition:
Appliances intended for installation in a bank of other appliances and appliances intended to
be fixed to an installation wall are enclosed to obtain protection against electric shock and
harmful ingress of water equivalent to that obtained when installed in accordance with the
instructions provided with the appliance.
NOTE 101 Appropriate enclosures or additional appliances may can be needed for test purposes.
5.101 Appliances are tested as heating appliances, even if they incorporate a motor.
Appliances are tested as heating appliances when during a mode of operation electrical
heaters are energized. If no electrical heaters are energized, the appliances are tested as
motor-operated appliances.
5.102 Appliances, when assembled in combination with or incorporating other appliances, are
tested in accordance with the requirements of this standard. The other appliances are operated
simultaneously in accordance with the requirements of the relevant standards.
5.103 Tests on dual purpose boiling pans are carried out with or without the inner vessel,
whichever imposes the more severe condition, taking into account the manufacturer's
instructions.
6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Replacement:
Appliances shall be class I with respect to protection against electric shock.
Compliance is checked by inspection and by the relevant tests.
6.2 Addition:
Appliances normally used on a table shall be at least IPX3. Other appliances shall be at least
IPX4.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Appliances shall be marked with the rated pressure, in kilopascals (kPa), on pressurized parts
of the appliance.
– 12 – IEC 60335-2-47:2021 RLV © IEC 2021
If appliances have external accessible surfaces, for which temperature rise limits are specified
in Table 101 and for which the provisions of footnote b to Table 101 apply, then the appliance
shall be marked with symbol IEC 60417-5041 (2002-10), or with the substance of the following:
Caution: Hot surfaces.
7.6 Addition:
[symbol IEC 60417-5041 (2002-10)] caution, hot surface

7.10 Addition:
Devices controlling the tilting process movement of appliances with tilting parts shall be clearly
marked to show the direction of movement.
7.12 Addition:
The instructions of boiling pans except atmospheric boiling pans shall include the substance
of the following warning.
WARNING: Do not open drain cocks or other emptying devices until the pressure has been
reduced to approximately atmospheric pressure.
The instructions shall include the substance of the following warning.
WARNING: Opening the drain cock will lead to the outflow of the hot contents of the boiling
pan.
Instructions for user maintenance, for example cleaning, shall also be given. They shall include
a statement that the appliance is not to be cleaned with a water jet or a steam cleaner.
Unless the appliance or part is intended to be partially or completely immersed in water for
cleaning, the instructions for appliances with detachable electrical parts and appliances, other
than stationary appliances, shall state that the appliance or part shall not be immersed.
If any of symbols IEC 60417-5021 (2002-10) and or IEC 60417-5041 (2002-10) are is marked
on the appliance, their its meaning shall be explained.
The instructions shall include the substance of the following:
These appliances are intended to be used for commercial applications, for example in
kitchens of restaurants, canteens, hospitals and in commercial enterprises such as
bakeries, butcheries, etc., but not for continuous mass production of food.
If the manufacturer wants to limit the use of the appliance to less than the above, this has to be
clearly stated in the instructions.
Modification:
The instructions concerning persons (including children) with reduced physical, sensory or
mental capabilities or lack of experience and knowledge and children playing with the appliance
are is not applicable.
7.12.1 Replacement Addition:
The appliance shall be accompanied by instructions detailing any special precautions necessary
for installation. For appliances intended for installation in a bank of other appliances and
appliances intended to be fixed to an installation wall, details of how to ensure appropriate
protection against electric shock and harmful ingress of water shall be supplied. If the controls
of more than one appliance are combined in a separate enclosure, detailed installation
instructions shall be supplied. Instructions for user maintenance, for example cleaning, shall
also be given. They shall include a statement that the appliance is not to be cleaned with a
water jet or a steam cleaner.
For appliances that are permanently connected to fixed wiring and for which leakage currents
may can exceed 10 mA, particularly if disconnected or not used for long periods, or during initial
installation, the instructions shall give recommendations regarding the rating of protective
devices, such as earth leakage relays residual current devices (RCD), to be installed.
If a stationary appliance is intended to be moved for cleaning, this shall be stated.
For stationary appliances equipped with rollers or castors or intended to be moved for
cleaning, the instructions shall state the substance of the following.
This appliance is to be connected with flexible connections for equipotential bonding and
connection to services such as electricity supply, water supply, gas supply and steam supply
such that the appliance can be moved in the direction required for cleaning a distance not
less than the dimension of the appliance in the direction of movement plus 500 mm without
the flexible connections becoming taut or being subject to strain.
Compliance is checked by inspection.
7.12.4 Addition:
The instructions for built-in appliances having a separate control panel for several appliances
shall state that the control panel is only to be connected to the specified appliances in order to
avoid a possible hazard.
7.12.9 Not applicable.
7.14 Addition:
The height of the triangle used with in symbol IEC 60417-5041 (2002-10) shall be at least
15 mm.
7.15 Addition:
The marking specified for external accessible surfaces shall be visible when the appliance is
operated as in normal use, including when actuating any switch, adjusting any control or
opening a lid or door. It shall not be placed on a functional surface or adjacent surface.
Modification:
For fixed appliances, the marking of the name or trademark or identification mark of the
manufacturer or responsible vendor and the model or type reference shall be marked on the
appliance and, if not visible when the appliance is installed as in normal use shall be included
in the instructions or on an additional label that can be fixed near the appliance after installation.
NOTE 101 An example of such a fixed appliance is a built-in appliance.
7.101 Equipotential bonding terminals shall be marked with symbol 5021 of IEC 60417-1
IEC 60417-5021 (2002-10).
– 14 – IEC 60335-2-47:2021 RLV © IEC 2021
These markings shall not be placed on screws, removable washers or other parts that can be
removed when conductors are being connected.
Compliance is checked by inspection.
7.102 Vessels shall be marked with an indicated level.
Compliance is checked by inspection.
8 Protection against access to live parts
This clause of Part 1 is applicable.
9 Starting of motor-operated appliances
This clause of Part 1 is applicable except as follows.
9.101 Fan motors providing a cooling effect in order to comply with the requirements of
Clause 11 shall start under all voltage conditions that may can occur in use.
Compliance is checked by starting the motor three times at a voltage equal to 0,85 times rated
voltage, the motor being at room temperature at the beginning of the test.
Compliance is checked by the following tests using a supply source such that its drop in voltage
does not exceed 1 % during the tests. The appliance being returned to room temperature after
each test.
The motor appliance is started each time under the conditions occurring at the beginning of
normal operation or, for automatic appliances, at the beginning of the normal cycle of
operation, the motor being allowed to come to rest between successive starts a voltage equal
to 0,85 times rated voltage being applied to the input terminals of the appliance.
For appliances provided with motors having other than centrifugal starting switches, this test is
repeated at a voltage equal to 1,06 times rated voltage being applied to the terminals of the
appliance.
The tests are carried out three times.
In all cases, the motor shall start and it shall function in such a way that safety is not affected,
and the overload protective devices of the motor shall not operate.
NOTE The supply source is such that during the test the drop in voltage does not exceed 1 %.
10 Power input and current
This clause of Part 1 is applicable except as follows.
10.1 Addition:
NOTE 101 For appliances having more than one heating unit, the total power input may be
determined by measuring the power input of each heating unit separately (see also 3.1.4).

11 Heating
This clause of Part 1 is applicable except as follows.
11.2 Addition:
Appliances intended to be fixed to the floor and appliances with a mass greater than 40 kg and
not provided with rollers, castors or similar means are installed in accordance with the
manufacturer's instructions. If no instructions are given, these appliances are considered as
appliances normally placed on the floor.
11.3 Addition:
Where the external accessible surfaces are suitably flat and access permits, then the test
probe of Figure 103 Figure 101 is used to measure the temperature rises of external
accessible surfaces specified in Table 101. The probe is applied with a force of 4 N ± 1 N to
the surface in such a way that the best possible contact between the probe and the surface is
ensured. The measurement is performed after a contact period of 30 s.
The probe may be held in place using a laboratory stand clamp or similar device. Any measuring
instrument giving the same results as the probe may be used.
11.4 Replacement:
Appliances are operated under normal operation such that the total power input of the
appliance is 1,15 times rated power input. If it is not possible to switch on all heating elements
at the same time, the test is made with each of the combinations that the switch arrangement
will allow, the highest load possible with each switching arrangement being in circuit.
If the appliance is provided with a control that limits the total power input, the test is made with
whichever combination of heating units as may be selected by the control imposes the most
severe unfavourable condition.
If the temperature rise limits of motors, transformers or electronic circuits are exceeded, the
test is repeated with the appliance supplied at 1,06 times rated voltage. In this case, only the
temperature rises of motors, transformers or electronic circuits rise of the components for
which the temperature rise limits were exceeded are measured.
NOTE 101 See also 11.7.
11.7 Replacement:
Appliances are operated until steady conditions are established.
NOTE 101 The duration of the test may consist of more than one cycle of operation.
Steady conditions are considered to exist 60 min after reaching the temperatures defined for
normal operation.
When an appliance is assembled in combination with, equipped with or incorporating
accessories or other appliances, the interaction shall be covered if they are provided to operate
simultaneously as stated by the manufacturer or by a common control.
Agitator motors are operated continuously unless provided with a timer, in which case they are
operated for the maximum time allowed by the timer, or until steady conditions are established,
whichever is shorter the shortest.

– 16 – IEC 60335-2-47:2021 RLV © IEC 2021
Tilting motors are operated immediately after the appliance has reached steady conditions, for
one full cycle of operation (one cycle being from the fully up position to the fully down position
and back to the fully up position).
Lifting motors are similarly operated, but for three such cycles.
11.8 Addition Modification:
During the test the pressure relief device shall not operate.
During the test, the temperature rises are monitored continuously and shall not exceed the
values shown in Table 3 and Table 101.
Addition:
During the test, the pressure relief device shall not operate.
Table 101 – Maximum temperature rises for specified external
accessible surfaces under normal operating conditions
b
Temperature rise of external accessible surfaces
a
Surface
K
Bare metal 48
c
Coated metal
Glass and ceramic 65
d, e
Plastic and plastic coating > 0,4 mm
a
Temperature rises are not measured on:
– the underside of appliances intended to be used on a working surface or floor;
– the rear surface of appliances;
– surfaces that are inaccessible to a 75 mm diameter probe having a hemispherical end;
– functional surfaces and adjacent surfaces.
b
The temperature rise on external accessible surfaces up to a distance of 100 mm from adjacent surfaces of
the appliance (see Figure 102) may exceed the limits by up to 25 K, but the relevant part shall then be marked
with symbol IEC 60417-5041 (2002-10) or the equivalent text.
c
Metal is considered coated when a coating having a minimum thickness of 90 µm made by of enamel or non-
substantially plastic coating is used.
d
The temperature rise limit of plastic also applies for plastic material having a metal finish of thickness less than
0,1 mm.
e
When the thickness of the plastic coating does not exceed 0,4 mm, the temperature rise limits of coated metal
for underlying metal apply or the temperature rise limits for glass or ceramic material for underlying glass or
ceramic material apply.
12 Void Charging of metal-ion batteries
This clause of Part 1 is not applicable.
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable except as follows.
13.2 Modification:
Instead of the permissible leakage current for stationary class I appliances, the following
applies:
– for cord and plug connected 0,75 mA or 1 mA per kW rated power input of the
appliances appliance with a maximum of 10 mA, whichever is higher;
– for other appliances 0,75 mA or 1 mA per kW rated power input of the
appliance with no maximum, whichever is higher.

For portable class I appliances, instead of the permissible leakage current, the following
applies:
– for cord and plug connected 0,75 mA or 1 mA per kW rated power input of the
appliances appliance with a maximum of 10 mA, whichever is higher.

14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable except as follows.
15.1.1 Addition:
In addition, IPX0, IPX1, IPX2, IPX3 and IPX4 appliances, except those marked IPX5 and IPX6
are subjected for 5 min to the following splash test.
The apparatus shown in Figure 101 Figure 103 is used. The appliance is placed in normal
position of use and adjustable feet shall be set in accordance with the instructions for use to
the most unfavourable height.
For appliances normally used on the floor, the bowl is placed on the floor and is moved around
in such a way as to splash the appliance from all directions. During the test, the water pressure
is so regulated that the water splashes up 150 mm above the bottom of the bowl. The bowl is
placed on the floor for appliances normally used on the floor not positioned underneath the
appliance.
For all other appliances, on a horizontal support 50 mm below the lowest edge of the appliance, the
bowl is so moved around as to splash the appliance from all directions the bowl is placed on the
same plane where the appliance is placed and is moved around in such a way as to splash the
appliance from all directions. During the test, the water pressure is so regulated that the water
splashes up 100 mm above the bottom of the bowl. The bowl is not positione
...

IEC 60335-2-47 ®
Edition 5.1 2025-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
Household and similar electrical appliances – Safety –
Part 2-47: Particular requirements for commercial electric boiling pans

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IEC 60335-2-47 ®
Edition 5.1 2025-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
Household and similar electrical appliances – Safety –
Part 2-47: Particular requirements for commercial electric boiling pans
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.040.20 ISBN 978-2-8327-0222-2
REDLINE VERSION – 2 – IEC 60335-2-47:2021+AMD1:2025 CSV
© IEC 2025
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 General requirement . 10
5 General conditions for the tests . 10
6 Classification . 11
7 Marking and instructions . 11
8 Protection against access to live parts . 14
9 Starting of motor-operated appliances . 14
10 Power input and current . 14
11 Heating . 14
12 Charging of metal-ion batteries . 16
13 Leakage current and electric strength at operating temperature . 16
14 Transient overvoltages . 17
15 Moisture resistance . 17
16 Leakage current and electric strength . 18
17 Overload protection of transformers and associated circuits . 18
18 Endurance . 18
19 Abnormal operation . 18
20 Stability and mechanical hazards . 19
21 Mechanical strength . 20
22 Construction . 20
23 Internal wiring . 23
24 Components . 23
25 Supply connection and external flexible cords . 23
26 Terminals for external conductors . 24
27 Provision for earthing . 24
28 Screws and connections . 24
29 Clearances, creepage distances and solid insulation . 25
30 Resistance to heat and fire . 25
31 Resistance to rusting . 26
32 Radiation, toxicity and similar hazards . 26
Annexes . 29
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances .
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 31
Bibliography . 32

Figure 101 – Probe for measuring surface temperatures . 26

© IEC 2025
Figure 102 – Identification of surfaces for temperature measurement . 27
Figure 103 – Splash apparatus . 28

Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 16
Table 102 – Assembling torques for screwed connections providing earthing continuity . 25

REDLINE VERSION – 4 – IEC 60335-2-47:2021+AMD1:2025 CSV
© IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-47: Particular requirements for commercial electric boiling pans

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
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
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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
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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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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
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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 60335-2-47 edition 5.1 contains the fifth edition (2021-11) [documents 61/6363/FDIS
and 61/6413/RVD] and its amendment 1 (2025-02) [documents 61/7239/CDV and
61/7355/RVC].
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.

© IEC 2025
IEC 60335-2-47 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This fifth edition cancels and replaces the fourth edition published in 2002, Amendment 1:2008
and Amendment 2:2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the text has been aligned with IEC 60335-1:2020;
b) some notes have been converted to normative text, modified or deleted (Clause 1, 7.15,
11.7, 9.101, 10.1, 11.4, 11.7, 19.101, 20.1, 22.101, 22.113, 23.3, 27.2);
c) clarifications to some test specifications have been made (15.1.1, 15.2, 20.1, 22.101,
22.102);
d) exclusion of battery-operated appliances and appliances used in areas open to the public
(Clause 1);
e) relocation of cleaning instructions from 7.12.1 to 7.12;
f) introduction of 22.120;
g) conciliation of the text of IEC 60335-2-47 with the other standards under IEC/TC61/MT32.
The language used for the development of this International Standard is English.
A list of all parts in the IEC 60335 series, published under the general title Household and
similar electrical appliances – Safety, can be found on the IEC website.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
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.
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: Particular requirements for commercial electric boiling
pans.
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.
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.
REDLINE VERSION – 6 – IEC 60335-2-47:2021+AMD1:2025 CSV
© IEC 2025
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 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.
– 6.1: Class 01 appliances are allowed (Japan).
– 13.2: Leakage current limits are different (Japan).
– 16.2: Leakage current limits are different (Japan).

© IEC 2025
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:
https://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.
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 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.
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.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods for 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.

REDLINE VERSION – 8 – IEC 60335-2-47:2021+AMD1:2025 CSV
© IEC 2025
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-47: Particular requirements for commercial electric boiling pans

1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of electrically operated commercial boiling pans,
their rated voltage being not more than 250 V for single-phase appliances connected between
one phase and neutral, and 480 V for other appliances including direct current (DC) supplied
appliances.
These appliances are not intended for household and similar purposes. They are used for
commercial processing of food in areas not open to the public, for example in kitchens of
restaurants, canteens, hospitals and in commercial enterprises such as bakeries and
butcheries.
The electrical part of appliances making use of other forms of energy is also within the scope
of this standard.
As far as is practicable, this standard deals with the common hazards presented by these types
of appliances.
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 and similar authorities;
– in many countries additional requirements are specified for pressure appliances.
This standard does not apply to:
– 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 for continuous mass production of food;.
– battery-operated appliances.
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60584-1, Thermocouples – Part 1: EMF specifications and tolerances
ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel – Part 1:
Bolts, screws and studs with specified property classes – Coarse thread and fine pitch thread

© IEC 2025
ISO 3506-1, Fasteners – Mechanical properties of corrosion-resistant stainless steel fasteners
– Part 1: Bolts, screws and studs with specified grade and property classes
ISO 3506-2, Fasteners – Mechanical properties of corrosion-resistant stainless steel fasteners
– Part 2: Nuts with specified grade and property classes
ISO 3506-3, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 3: Set
screws and similar fasteners not under tensile stress
ISO 3506-4, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 4:
Tapping screws
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1 Definitions relating to physical characteristics
3.1.4 Addition:
Note 101 to entry: The rated power input is the sum of the power inputs of all the individual elements in the
appliance that can be on at one time; where there are several such combinations possible, that giving the highest
power input is used in determining the rated power input.
3.1.9 Replacement:
Modification:
Replace the first paragraph with the following:
operation of the appliance under the following conditions
The appliance is filled with water at 15 °C ± 5 °C to the indicated level.
Appliances with more than one programme are operated with the most severe programme. In
addition, any control intended to be operated by the user is set at maximum until the water boils
or the operating temperature is reached. The control is then adjusted to the lowest setting that
maintains boiling or the operating temperature. Lids and covers are in position and closed.
Motors and detachable electrical parts incorporated in the appliance are operated under the
most unfavourable conditions that can be expected in normal use taking into account the
manufacturer's instructions.
3.1.101
rated pressure
maximum working pressure assigned by the manufacturer to the pressurized parts of the
appliance
3.5 Definitions relating to types of appliances
3.5.101
boiling pan
appliance in which liquids contained in a vessel are heated to boiling point as part of a cooking
process
Note 1 to entry: The pressure within the vessel can exceed atmospheric pressure.
Note 2 to entry: The vessel may be fixed or tilting.

REDLINE VERSION – 10 – IEC 60335-2-47:2021+AMD1:2025 CSV
© IEC 2025
3.5.102
atmospheric boiling pan
boiling pan in which the pressure within the vessel does not differ significantly from
atmospheric pressure
3.5.103
jacketed boiling pan
appliance having a double-walled vessel, the space between the inner and outer walls
containing a heat transfer medium that is heated by heating elements
3.5.104
dual purpose boiling pan
appliance incorporating two vessels, the inner one being removable
Note 1 to entry: The appliance may be used with or without the removable vessel.
3.5.105
unjacketed boiling pan
appliance in which heating of the contents of the vessel is achieved by means other than via a
heat transfer jacket
3.6 Definitions relating to parts of an appliance
3.6.101
functional surface
surface that is intentionally heated by an internal heat source and has to be hot to carry out the
function for which the appliance is intended
Note 1 to entry: An example is the heated sheath of a tubular heating element.
3.6.102
adjacent surface
surface that is adjacent to a functional surface and which can become hot through conduction
3.8 Definitions relating to miscellaneous matters
3.8.101
indicated level
mark on the appliance to indicate the maximum liquid level for correct operation
3.8.102
installation wall
special fixed construction containing supply facilities for appliances installed in conjunction with
it
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.5 Addition:
Tests are carried out with the vessel in the position of normal use for cooking.

© IEC 2025
5.10 Addition:
Appliances intended for installation in a bank of other appliances and appliances intended to
be fixed to an installation wall are enclosed to obtain protection against electric shock and
harmful ingress of water equivalent to that obtained when installed in accordance with the
instructions provided with the appliance.
NOTE Appropriate enclosures or additional appliances can be needed for test purposes.
5.101 Appliances are tested as heating appliances when during a mode of operation
electrical heaters are energized. If no electrical heaters are energized, the appliances are tested
as motor-operated appliances.
5.102 Appliances, when assembled in combination with or incorporating other appliances, are
tested in accordance with the requirements of this standard. The other appliances are operated
simultaneously in accordance with the requirements of the relevant standards.
5.103 Tests on dual purpose boiling pans are carried out with or without the inner vessel,
whichever imposes the more severe condition, taking into account the manufacturer's
instructions.
6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Replacement:
Appliances shall be class I with respect to protection against electric shock.
Compliance is checked by inspection and by the relevant tests.
6.2 Addition:
Appliances normally used on a table shall be at least IPX3. Other appliances shall be at least
IPX4.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Appliances shall be marked with the rated pressure, in kilopascals (kPa), on pressurized parts
of the appliance.
If appliances have external accessible surfaces, for which temperature rise limits are specified
in Table 101 and for which the provisions of footnote b to Table 101 apply, then the appliance
shall be marked with symbol IEC 60417-5041 (2002-10), or with the substance of the following:
Caution: Hot surfaces.
REDLINE VERSION – 12 – IEC 60335-2-47:2021+AMD1:2025 CSV
© IEC 2025
7.6 Addition:
[symbol IEC 60417-5041 (2002-10)] caution, hot surface

7.10 Addition:
Devices controlling the tilting movement of appliances with tilting parts shall be clearly marked
to show the direction of movement.
7.12 Addition:
The instructions of boiling pans except atmospheric boiling pans shall include the substance
of the following warning.
WARNING: Do not open drain cocks or other emptying devices until the pressure has been
reduced to approximately atmospheric pressure.
The instructions shall include the substance of the following warning.
WARNING: Opening the drain cock will lead to the outflow of the hot contents of the boiling
pan.
Instructions for user maintenance, for example cleaning, shall also be given. They shall include
a statement that the appliance is not to be cleaned with a water jet or a steam cleaner.
Unless the appliance or part is intended to be partially or completely immersed in water for
cleaning, the instructions for appliances with detachable electrical parts and appliances, other
than stationary appliances, shall state that the appliance or part shall not be immersed.
If any of symbols IEC 60417-5021 (2002-10) or IEC 60417-5041 (2002-10) is marked on the
appliance, its meaning shall be explained.
The instructions shall include the substance of the following:
These appliances are intended to be used for commercial applications, for example in
kitchens of restaurants, canteens, hospitals and in commercial enterprises such as
bakeries, butcheries, etc., but not for continuous mass production of food.
If the manufacturer wants to limit the use of the appliance to less than the above, this has to be
clearly stated in the instructions.
Modification:
The instruction concerning persons (including children) with reduced physical, sensory or
mental capabilities or lack of experience and knowledge and children playing with the appliance
is not applicable.
7.12.1 Addition:
The appliance shall be accompanied by instructions detailing any special precautions necessary
for installation. For appliances intended for installation in a bank of other appliances and
appliances intended to be fixed to an installation wall, details of how to ensure appropriate
protection against electric shock and harmful ingress of water shall be supplied. If the controls
of more than one appliance are combined in a separate enclosure, detailed installation
instructions shall be supplied.

© IEC 2025
For appliances that are permanently connected to fixed wiring and for which leakage currents
can exceed 10 mA, particularly if disconnected or not used for long periods, or during initial
installation, the instructions shall give recommendations regarding the rating of protective
devices, such as residual current devices (RCD), to be installed.
If a stationary appliance is intended to be moved for cleaning, this shall be stated.
For stationary appliances equipped with rollers or castors or intended to be moved for
cleaning, the instructions shall state the substance of the following.
This appliance is to be connected with flexible connections for equipotential bonding and
connection to services such as electricity supply, water supply, gas supply and steam supply
such that the appliance can be moved in the direction required for cleaning a distance not
less than the dimension of the appliance in the direction of movement plus 500 mm without
the flexible connections becoming taut or being subject to strain.
Compliance is checked by inspection.
7.12.4 Addition:
The instructions for built-in appliances having a separate control panel for several appliances
shall state that the control panel is only to be connected to the specified appliances in order to
avoid a possible hazard.
7.12.9 Not applicable.
7.14 Addition:
The height of the triangle in symbol IEC 60417-5041 (2002-10) shall be at least 15 mm.
7.15 Addition:
The marking specified for external accessible surfaces shall be visible when the appliance is
operated as in normal use, including when actuating any switch, adjusting any control or
opening a lid or door. It shall not be placed on a functional surface or adjacent surface.
Modification:
For fixed appliances, the marking of the name or trademark or identification mark of the
manufacturer or responsible vendor and the model or type reference shall be marked on the
appliance and, if not visible when the appliance is installed as in normal use shall be included
in the instructions or on an additional label that can be fixed near the appliance after installation.
7.101 Equipotential bonding terminals shall be marked with symbol IEC 60417-5021
(2002-10).
These markings shall not be placed on screws, removable washers or other parts that can be
removed when conductors are being connected.
Compliance is checked by inspection.
7.102 Vessels shall be marked with an indicated level.
Compliance is checked by inspection.

REDLINE VERSION – 14 – IEC 60335-2-47:2021+AMD1:2025 CSV
© IEC 2025
8 Protection against access to live parts
This clause of Part 1 is applicable.
9 Starting of motor-operated appliances
This clause of Part 1 is applicable except as follows.
9.101 Fan motors providing a cooling effect in order to comply with the requirements of
Clause 11 shall start under all voltage conditions that can occur in use.
Compliance is checked by the following tests using a supply source such that its drop in voltage
does not exceed 1 % during the tests. The appliance being returned to room temperature after
each test.
The appliance is started under the conditions occurring at the beginning of normal operation
or, for automatic appliances, at the beginning of the normal cycle of operation, a voltage equal
to 0,85 times rated voltage being applied to the input terminals of the appliance.
For appliances provided with motors having other than centrifugal starting switches, this test is
repeated at a voltage equal to 1,06 times rated voltage being applied to the terminals of the
appliance.
The tests are carried out three times.
In all cases, the motor shall start and it shall function in such a way that safety is not affected,
and the overload protective devices of the motor shall not operate.
10 Power input and current
This clause of Part 1 is applicable except as follows.
10.1 Addition:
For appliances having more than one heating unit, the total power input may be determined by
measuring the power input of each heating unit separately (see also 3.1.4).
11 Heating
This clause of Part 1 is applicable except as follows.
11.2 Addition:
Appliances intended to be fixed to the floor and appliances with a mass greater than 40 kg and
not provided with rollers, castors or similar means are installed in accordance with the
manufacturer's instructions. If no instructions are given, these appliances are considered as
appliances normally placed on the floor.

© IEC 2025
11.3 Addition:
Where the external accessible surfaces are suitably flat and access permits, then the test
probe of Figure 101 is used to measure the temperature rises of external accessible surfaces
specified in Table 101. The probe is applied with a force of 4 N ± 1 N to the surface in such a
way that the best possible contact between the probe and the surface is ensured. The
measurement is performed after a contact period of 30 s.
The probe may be held in place using a laboratory stand clamp or similar device. Any measuring
instrument giving the same results as the probe may be used.
11.4 Replacement:
Appliances are operated under normal operation such that the total power input of the
appliance is 1,15 times rated power input. If it is not possible to switch on all heating elements
at the same time, the test is made with each of the combinations that the switch arrangement
will allow, the highest load possible with each switching arrangement being in circuit.
If the appliance is provided with a control that limits the total power input, the test is made with
whichever combination of heating units as may be selected by the control imposes the most
unfavourable condition.
If the temperature rise limits of motors, transformers or electronic circuits are exceeded, the
test is repeated with the appliance supplied at 1,06 times rated voltage. In this case, only the
temperature rise of the components for which the temperature rise limits were exceeded are
measured.
11.7 Replacement:
Modification:
Replace the first paragraph with the following:
Appliances are operated until steady conditions are established.
Steady conditions are considered to exist 60 min after reaching the temperatures defined for
normal operation.
When an appliance is assembled in combination with, equipped with or incorporating
accessories or other appliances, the interaction shall be covered if they are provided to operate
simultaneously as stated by the manufacturer or by a common control.
Agitator motors are operated continuously unless provided with a timer, in which case they are
operated for the maximum time allowed by the timer, or until steady conditions are established,
whichever is the shortest.
Tilting motors are operated immediately after the appliance has reached steady conditions, for
one full cycle of operation (one cycle being from the fully up position to the fully down position
and back to the fully up position).
Lifting motors are similarly operated, but for three such cycles.
11.8 Modification:
During the test, the temperature rises are monitored continuously and shall not exceed the
values shown in Table 3 and Table 101.

REDLINE VERSION – 16 – IEC 60335-2-47:2021+AMD1:2025 CSV
© IEC 2025
Addition:
During the test, the pressure relief device shall not operate.
Table 101 – Maximum temperature rises for specified external
accessible surfaces under normal operating conditions
b
Temperature rise of external accessible surfaces
a
Surface
K
Bare metal 48
c
Coated metal
Glass and ceramic 65
d, e
Plastic and plastic coating > 0,4 mm
a
Temperature rises are not measured on:
– the underside of appliances intended to be used on a working surface or floor;
– the rear surface of appliances;
– surfaces that are inaccessible to a 75 mm diameter probe having a hemispherical end;
– functional surfaces and adjacent surfaces.
b
The temperature rise on external accessible surfaces up to a distance of 100 mm from adjacent surfaces of
the appliance (see Figure 102) may exceed the limits by up to 25 K, but the relevant part shall then be marked
with symbol IEC 60417-5041 (2002-10) or the equivalent text.
c
Metal is considered coated when a coating having a minimum thickness of 90 µm made of enamel or non-
substantially plastic coating is used.
d
The temperature rise limit of plastic also applies for plastic material having a metal finish of thickness less than
0,1 mm.
e
When the thickness of the plastic coating does not exceed 0,4 mm, the temperature rise limits of coated metal
for underlying metal apply or the temperature rise limits for glass or ceramic material for underlying glass or
ceramic material apply.
12 Charging of metal-ion batteries
This clause of Part 1 is not applicable.
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable except as follows.
13.2 Modification:
Instead of the permissible leakage current for stationary class I appliances, the following
applies:
– for cord and plug connected 0,75 mA or 1 mA per kW rated power input of the
appliances appliance with a maximum of 10 mA, whichever is higher;
– for other appliances 0,75 mA or 1 mA per kW rated power input of the
appliance with no maximum, whichever is higher.

For portable class I appliances, instead of the permissible leakage current, the following
applies:
© IEC 2025
– for cord and plug connected 0,75 mA or 1 mA per kW rated power input of the
appliances appliance with a maximum of 10 mA, whichever is higher.

14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable except as follows.
15.1.1 Addition:
In addition, appliances, except those marked IPX5 and IPX6 are subjected for 5 min to the
following splash test.
The apparatus shown in Figure 103 is used. The appliance is placed in normal position of use
and adjustable feet shall be set in accordance with the instructions for use to the most
unfavourable height.
For appliances normally used on the floor, the bowl is placed on the floor and is moved around
in such a way as to splash the appliance from all directions. During the test, the water pressure
is so regulated that the water splashes up 150 mm above the bottom of the bowl. The bowl is
not positioned underneath the appliance.
For all other appliances, the bowl is placed on the same plane where the appliance is placed
and is moved around in such a way as to splash the appliance from all directions. During the
test, the water pressure is so regulated that the water splashes up 100 mm above the bottom
of the bowl. The bowl is not positioned underneath the appliance.
Care is taken that the appliance is not hit by the direct jet.
15.1.2 Modification:
Appliances normally used on a table are placed on a support having dimensions that are
15 cm ± 5 cm in excess of those of the orthogonal projection of the appliance on the support.
15.2 Modification:
The vessels of appliances intended to be filled by hand are completely filled with the spillage
solution and a further quantity equal to 15 % of the capacity of the vessel but not more than
10 l is poured in steadily over a period of 1 min.
Appliances with vessels intended to be filled by a manually operated tap or automatically are
connected to a water supply having the maximum supply pressure indicated by the
manufacturer. The means for controlling the incoming water is held fully open and the filling
continued for 1 min after the first evidence of overflow, or until a further protective system
operates to stop the inflow.
In addition, jacketed boiling pans are subjected to the following test.
The filling hole for the heat transfer medium is closed and 2 l of the spillage so
...

IEC 60335-2-47 ®
Edition 5.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-47: Particular requirements for commercial electric boiling pans

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-47: Exigences particulières pour les marmites électriques à usage
commercial
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IEC 60335-2-47 ®
Edition 5.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –

Part 2-47: Particular requirements for commercial electric boiling pans

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-47: Exigences particulières pour les marmites électriques à usage

commercial
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.040.20 ISBN 978-2-8322-1039-4

– 2 – IEC 60335-2-47:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 General requirement . 10
5 General conditions for the tests . 10
6 Classification . 11
7 Marking and instructions . 11
8 Protection against access to live parts . 14
9 Starting of motor-operated appliances . 14
10 Power input and current . 14
11 Heating . 14
12 Charging of metal-ion batteries . 16
13 Leakage current and electric strength at operating temperature . 16
14 Transient overvoltages . 17
15 Moisture resistance . 17
16 Leakage current and electric strength . 18
17 Overload protection of transformers and associated circuits . 18
18 Endurance . 18
19 Abnormal operation . 18
20 Stability and mechanical hazards . 19
21 Mechanical strength . 19
22 Construction . 20
23 Internal wiring . 22
24 Components . 23
25 Supply connection and external flexible cords . 23
26 Terminals for external conductors . 23
27 Provision for earthing . 24
28 Screws and connections . 24
29 Clearances, creepage distances and solid insulation . 25
30 Resistance to heat and fire . 25
31 Resistance to rusting . 25
32 Radiation, toxicity and similar hazards . 25
Annexes . 29
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 30
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 31
Bibliography . 32

Figure 101 – Probe for measuring surface temperatures . 26

Figure 102 – Identification of surfaces for temperature measurement . 27
Figure 103 – Splash apparatus . 28

Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 16
Table 102 – Assembling torques for screwed connections providing earthing continuity . 25

– 4 – IEC 60335-2-47:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-47: Particular requirements for commercial electric boiling pans

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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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.
IEC 60335-2-47 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This fifth edition cancels and replaces the fourth edition published in 2002, Amendment 1:2008
and Amendment 2:2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the text has been aligned with IEC 60335-1:2020;
b) some notes have been converted to normative text, modified or deleted (Clause 1, 7.15,
11.7, 9.101, 10.1, 11.4, 11.7, 19.101, 20.1, 22.101, 22.113, 23.3, 27.2);
c) clarifications to some test specifications have been made (15.1.1, 15.2, 20.1, 22.101,
22.102);
d) exclusion of battery-operated appliances and appliances used in areas open to the public
(Clause 1);
e) relocation of cleaning instructions from 7.12.1 to 7.12;
f) introduction of 22.120;
g) conciliation of the text of IEC 60335-2-47 with the other standards under IEC/TC61/MT32.
The text of this International Standard is based on the following documents:
FDIS Report on voting
61/6363/FDIS 61/6413/RVD
Full information on the voting for its approval 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.
A list of all parts in the IEC 60335 series, published under the general title Household and
similar electrical appliances – Safety, can be found on the IEC website.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
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.
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: Particular requirements for commercial electric boiling
pans.
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.
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.

– 6 – IEC 60335-2-47:2021 © IEC 2021
The committee has decided that the contents of this document 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,
• 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.
– 6.1: Class 01 appliances are allowed (Japan).
– 13.2: Leakage current limits are different (Japan).
– 16.2: Leakage current limits are different (Japan).

IMPORTANT – The "colour inside" logo on the cover page of this document 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:
https://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.
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 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.
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.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods for 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.

– 8 – IEC 60335-2-47:2021 © IEC 2021
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-47: Particular requirements for commercial electric boiling pans

1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of electrically operated commercial boiling pans,
their rated voltage being not more than 250 V for single-phase appliances connected between
one phase and neutral, and 480 V for other appliances.
These appliances are not intended for household and similar purposes. They are used for
commercial processing of food in areas not open to the public, for example in kitchens of
restaurants, canteens, hospitals and in commercial enterprises such as bakeries and
butcheries.
The electrical part of appliances making use of other forms of energy is also within the scope
of this standard.
As far as is practicable, this standard deals with the common hazards presented by these types
of appliances.
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 and similar authorities;
– in many countries additional requirements are specified for pressure appliances.
This standard does not apply to:
– 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 for continuous mass production of food;
– battery-operated appliances.
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60584-1, Thermocouples – Part 1: EMF specifications and tolerances
ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel – Part 1:
Bolts, screws and studs with specified property classes – Coarse thread and fine pitch thread

ISO 3506-1, Fasteners – Mechanical properties of corrosion-resistant stainless steel fasteners
– Part 1: Bolts, screws and studs with specified grade and property classes
ISO 3506-2, Fasteners – Mechanical properties of corrosion-resistant stainless steel fasteners
– Part 2: Nuts with specified grade and property classes
ISO 3506-3, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 3: Set
screws and similar fasteners not under tensile stress
ISO 3506-4, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 4:
Tapping screws
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1 Definitions relating to physical characteristics
3.1.4 Addition:
Note 101 to entry: The rated power input is the sum of the power inputs of all the individual elements in the
appliance that can be on at one time; where there are several such combinations possible, that giving the highest
power input is used in determining the rated power input.
3.1.9 Replacement:
operation of the appliance under the following conditions
The appliance is filled with water at 15 °C ± 5 °C to the indicated level.
Appliances with more than one programme are operated with the most severe programme. In
addition, any control intended to be operated by the user is set at maximum until the water boils
or the operating temperature is reached. The control is then adjusted to the lowest setting that
maintains boiling or the operating temperature. Lids and covers are in position and closed.
Motors and detachable electrical parts incorporated in the appliance are operated under the
most unfavourable conditions that can be expected in normal use taking into account the
manufacturer's instructions.
3.1.101
rated pressure
maximum working pressure assigned by the manufacturer to the pressurized parts of the
appliance
3.5 Definitions relating to types of appliances
3.5.101
boiling pan
appliance in which liquids contained in a vessel are heated to boiling point as part of a cooking
process
Note 1 to entry: The pressure within the vessel can exceed atmospheric pressure.
Note 2 to entry: The vessel may be fixed or tilting.
3.5.102
atmospheric boiling pan
boiling pan in which the pressure within the vessel does not differ significantly from
atmospheric pressure
– 10 – IEC 60335-2-47:2021 © IEC 2021
3.5.103
jacketed boiling pan
appliance having a double-walled vessel, the space between the inner and outer walls
containing a heat transfer medium that is heated by heating elements
3.5.104
dual purpose boiling pan
appliance incorporating two vessels, the inner one being removable
Note 1 to entry: The appliance may be used with or without the removable vessel.
3.5.105
unjacketed boiling pan
appliance in which heating of the contents of the vessel is achieved by means other than via a
heat transfer jacket
3.6 Definitions relating to parts of an appliance
3.6.101
functional surface
surface that is intentionally heated by an internal heat source and has to be hot to carry out the
function for which the appliance is intended
Note 1 to entry: An example is the heated sheath of a tubular heating element.
3.6.102
adjacent surface
surface that is adjacent to a functional surface and which can become hot through conduction
3.8 Definitions relating to miscellaneous matters
3.8.101
indicated level
mark on the appliance to indicate the maximum liquid level for correct operation
3.8.102
installation wall
special fixed construction containing supply facilities for appliances installed in conjunction with
it
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.5 Addition:
Tests are carried out with the vessel in the position of normal use for cooking.

5.10 Addition:
Appliances intended for installation in a bank of other appliances and appliances intended to
be fixed to an installation wall are enclosed to obtain protection against electric shock and
harmful ingress of water equivalent to that obtained when installed in accordance with the
instructions provided with the appliance.
NOTE Appropriate enclosures or additional appliances can be needed for test purposes.
5.101 Appliances are tested as heating appliances when during a mode of operation
electrical heaters are energized. If no electrical heaters are energized, the appliances are tested
as motor-operated appliances.
5.102 Appliances, when assembled in combination with or incorporating other appliances, are
tested in accordance with the requirements of this standard. The other appliances are operated
simultaneously in accordance with the requirements of the relevant standards.
5.103 Tests on dual purpose boiling pans are carried out with or without the inner vessel,
whichever imposes the more severe condition, taking into account the manufacturer's
instructions.
6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Replacement:
Appliances shall be class I with respect to protection against electric shock.
Compliance is checked by inspection and by the relevant tests.
6.2 Addition:
Appliances normally used on a table shall be at least IPX3. Other appliances shall be at least
IPX4.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Appliances shall be marked with the rated pressure, in kilopascals (kPa), on pressurized parts
of the appliance.
If appliances have external accessible surfaces, for which temperature rise limits are specified
in Table 101 and for which the provisions of footnote b to Table 101 apply, then the appliance
shall be marked with symbol IEC 60417-5041 (2002-10), or with the substance of the following:
Caution: Hot surfaces.
– 12 – IEC 60335-2-47:2021 © IEC 2021
7.6 Addition:
[symbol IEC 60417-5041 (2002-10)] caution, hot surface

7.10 Addition:
Devices controlling the tilting movement of appliances with tilting parts shall be clearly marked
to show the direction of movement.
7.12 Addition:
The instructions of boiling pans except atmospheric boiling pans shall include the substance
of the following warning.
WARNING: Do not open drain cocks or other emptying devices until the pressure has been
reduced to approximately atmospheric pressure.
The instructions shall include the substance of the following warning.
WARNING: Opening the drain cock will lead to the outflow of the hot contents of the boiling
pan.
Instructions for user maintenance, for example cleaning, shall also be given. They shall include
a statement that the appliance is not to be cleaned with a water jet or a steam cleaner.
Unless the appliance or part is intended to be partially or completely immersed in water for
cleaning, the instructions for appliances with detachable electrical parts and appliances, other
than stationary appliances, shall state that the appliance or part shall not be immersed.
If any of symbols IEC 60417-5021 (2002-10) or IEC 60417-5041 (2002-10) is marked on the
appliance, its meaning shall be explained.
The instructions shall include the substance of the following:
These appliances are intended to be used for commercial applications, for example in
kitchens of restaurants, canteens, hospitals and in commercial enterprises such as
bakeries, butcheries, etc., but not for continuous mass production of food.
If the manufacturer wants to limit the use of the appliance to less than the above, this has to be
clearly stated in the instructions.
Modification:
The instruction concerning persons (including children) with reduced physical, sensory or
mental capabilities or lack of experience and knowledge and children playing with the appliance
is not applicable.
7.12.1 Addition:
The appliance shall be accompanied by instructions detailing any special precautions necessary
for installation. For appliances intended for installation in a bank of other appliances and
appliances intended to be fixed to an installation wall, details of how to ensure appropriate
protection against electric shock and harmful ingress of water shall be supplied. If the controls
of more than one appliance are combined in a separate enclosure, detailed installation
instructions shall be supplied.

For appliances that are permanently connected to fixed wiring and for which leakage currents
can exceed 10 mA, particularly if disconnected or not used for long periods, or during initial
installation, the instructions shall give recommendations regarding the rating of protective
devices, such as residual current devices (RCD), to be installed.
If a stationary appliance is intended to be moved for cleaning, this shall be stated.
For stationary appliances equipped with rollers or castors or intended to be moved for
cleaning, the instructions shall state the substance of the following.
This appliance is to be connected with flexible connections for equipotential bonding and
connection to services such as electricity supply, water supply, gas supply and steam supply
such that the appliance can be moved in the direction required for cleaning a distance not
less than the dimension of the appliance in the direction of movement plus 500 mm without
the flexible connections becoming taut or being subject to strain.
Compliance is checked by inspection.
7.12.4 Addition:
The instructions for built-in appliances having a separate control panel for several appliances
shall state that the control panel is only to be connected to the specified appliances in order to
avoid a possible hazard.
7.12.9 Not applicable.
7.14 Addition:
The height of the triangle in symbol IEC 60417-5041 (2002-10) shall be at least 15 mm.
7.15 Addition:
The marking specified for external accessible surfaces shall be visible when the appliance is
operated as in normal use, including when actuating any switch, adjusting any control or
opening a lid or door. It shall not be placed on a functional surface or adjacent surface.
Modification:
For fixed appliances, the marking of the name or trademark or identification mark of the
manufacturer or responsible vendor and the model or type reference shall be marked on the
appliance and, if not visible when the appliance is installed as in normal use shall be included
in the instructions or on an additional label that can be fixed near the appliance after installation.
7.101 Equipotential bonding terminals shall be marked with symbol IEC 60417-5021
(2002-10).
These markings shall not be placed on screws, removable washers or other parts that can be
removed when conductors are being connected.
Compliance is checked by inspection.
7.102 Vessels shall be marked with an indicated level.
Compliance is checked by inspection.

– 14 – IEC 60335-2-47:2021 © IEC 2021
8 Protection against access to live parts
This clause of Part 1 is applicable.
9 Starting of motor-operated appliances
This clause of Part 1 is applicable except as follows.
9.101 Fan motors providing a cooling effect in order to comply with the requirements of
Clause 11 shall start under all voltage conditions that can occur in use.
Compliance is checked by the following tests using a supply source such that its drop in voltage
does not exceed 1 % during the tests. The appliance being returned to room temperature after
each test.
The appliance is started under the conditions occurring at the beginning of normal operation
or, for automatic appliances, at the beginning of the normal cycle of operation, a voltage equal
to 0,85 times rated voltage being applied to the input terminals of the appliance.
For appliances provided with motors having other than centrifugal starting switches, this test is
repeated at a voltage equal to 1,06 times rated voltage being applied to the terminals of the
appliance.
The tests are carried out three times.
In all cases, the motor shall start and it shall function in such a way that safety is not affected,
and the overload protective devices of the motor shall not operate.
10 Power input and current
This clause of Part 1 is applicable except as follows.
10.1 Addition:
For appliances having more than one heating unit, the total power input may be determined by
measuring the power input of each heating unit separately (see also 3.1.4).
11 Heating
This clause of Part 1 is applicable except as follows.
11.2 Addition:
Appliances intended to be fixed to the floor and appliances with a mass greater than 40 kg and
not provided with rollers, castors or similar means are installed in accordance with the
manufacturer's instructions. If no instructions are given, these appliances are considered as
appliances normally placed on the floor.

11.3 Addition:
Where the external accessible surfaces are suitably flat and access permits, then the test
probe of Figure 101 is used to measure the temperature rises of external accessible surfaces
specified in Table 101. The probe is applied with a force of 4 N ± 1 N to the surface in such a
way that the best possible contact between the probe and the surface is ensured. The
measurement is performed after a contact period of 30 s.
The probe may be held in place using a laboratory stand clamp or similar device. Any measuring
instrument giving the same results as the probe may be used.
11.4 Replacement:
Appliances are operated under normal operation such that the total power input of the
appliance is 1,15 times rated power input. If it is not possible to switch on all heating elements
at the same time, the test is made with each of the combinations that the switch arrangement
will allow, the highest load possible with each switching arrangement being in circuit.
If the appliance is provided with a control that limits the total power input, the test is made with
whichever combination of heating units as may be selected by the control imposes the most
unfavourable condition.
If the temperature rise limits of motors, transformers or electronic circuits are exceeded, the
test is repeated with the appliance supplied at 1,06 times rated voltage. In this case, only the
temperature rise of the components for which the temperature rise limits were exceeded are
measured.
11.7 Replacement:
Appliances are operated until steady conditions are established.
Steady conditions are considered to exist 60 min after reaching the temperatures defined for
normal operation.
When an appliance is assembled in combination with, equipped with or incorporating
accessories or other appliances, the interaction shall be covered if they are provided to operate
simultaneously as stated by the manufacturer or by a common control.
Agitator motors are operated continuously unless provided with a timer, in which case they are
operated for the maximum time allowed by the timer, or until steady conditions are established,
whichever is the shortest.
Tilting motors are operated immediately after the appliance has reached steady conditions, for
one full cycle of operation (one cycle being from the fully up position to the fully down position
and back to the fully up position).
Lifting motors are similarly operated, but for three such cycles.
11.8 Modification:
During the test, the temperature rises are monitored continuously and shall not exceed the
values shown in Table 3 and Table 101.
Addition:
During the test, the pressure relief device shall not operate.

– 16 – IEC 60335-2-47:2021 © IEC 2021
Table 101 – Maximum temperature rises for specified external
accessible surfaces under normal operating conditions
b
Temperature rise of external accessible surfaces
a
Surface
K
Bare metal 48
c
Coated metal
Glass and ceramic 65
d, e
Plastic and plastic coating > 0,4 mm
a
Temperature rises are not measured on:
– the underside of appliances intended to be used on a working surface or floor;
– the rear surface of appliances;
– surfaces that are inaccessible to a 75 mm diameter probe having a hemispherical end;
– functional surfaces and adjacent surfaces.
b
The temperature rise on external accessible surfaces up to a distance of 100 mm from adjacent surfaces of
the appliance (see Figure 102) may exceed the limits by up to 25 K, but the relevant part shall then be marked
with symbol IEC 60417-5041 (2002-10) or the equivalent text.
c
Metal is considered coated when a coating having a minimum thickness of 90 µm made of enamel or non-
substantially plastic coating is used.
d
The temperature rise limit of plastic also applies for plastic material having a metal finish of thickness less than
0,1 mm.
e
When the thickness of the plastic coating does not exceed 0,4 mm, the temperature rise limits of coated metal
for underlying metal apply or the temperature rise limits for glass or ceramic material for underlying glass or
ceramic material apply.
12 Charging of metal-ion batteries
This clause of Part 1 is not applicable.
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable except as follows.
13.2 Modification:
Instead of the permissible leakage current for stationary class I appliances, the following
applies:
– for cord and plug connected 0,75 mA or 1 mA per kW rated power input of the
appliances appliance with a maximum of 10 mA, whichever is higher;
– for other appliances 0,75 mA or 1 mA per kW rated power input of the
appliance with no maximum, whichever is higher.

For portable class I appliances, instead of the permissible leakage current, the following
applies:
– for cord and plug connected 0,75 mA or 1 mA per kW rated power input of the
appliances appliance with a maximum of 10 mA, whichever is higher.

14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable except as follows.
15.1.1 Addition:
In addition, appliances, except those marked IPX5 and IPX6 are subjected for 5 min to the
following splash test.
The apparatus shown in Figure 103 is used. The appliance is placed in normal position of use
and adjustable feet shall be set in accordance with the instructions for use to the most
unfavourable height.
For appliances norm
...