IEC 60335-2-49:2021
(Main)Household and similar electrical appliances - Safety - Part 2-49: Particular requirements for commercial electric appliances for keeping food and crockery warm
Household and similar electrical appliances - Safety - Part 2-49: Particular requirements for commercial electric appliances for keeping food and crockery warm
IEC 60335-2-49:2021 is available as IEC 60335-2-49:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60335-2-49:2021 deals with the safety of electrically operated commercial appliances for keeping food and crockery warm, 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.
Examples of appliances that are within the scope of this standard are:
– hot cupboards, with or without heated tops;
– heated tops;
– heated display cases;
– heated crockery dispensers;
– heated tables;
– radiant heaters.
These appliances are not intended for household and similar purposes. They are used for commercial purposes, processing of food, also in areas 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;
– commercial electric bains-marie (IEC 60335-2-50);
– battery-operated appliances;
– warming plates and similar appliances for household use covered by IEC 60335-2-12 used in the following environments by laymen: staff kitchen areas in shops, offices and other working environments, farm houses, hotels, motels and other residential type environments, bed and breakfast type environments.
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) introduction of requirements for appliances intended for use in areas open to the public, including external accessible surface temperatures (Clause 1, 7.12, 11.8, Table 102);
c) exclusion of battery-operated appliances (Clause 1);
d) clarification of applicable standard for appliances for use by laymen (Clause 1, 7.12);
e) relocation of cleaning instructions from 7.12.1 to 7.12;
f) relocation of 24.101 to 22.106;
g) conciliation of the text of IEC 60335-2-49 with other standards under IEC/TC61/MT32;
h) some notes have been converted to normative text, modified or deleted (Clause 1, 7.1, 7.15, 11.3, 11.7, 15.2, 19.2, 22.101, 23.3);
i) additional requirements for measurement of input current;
j) clarification of the testing procedure in 15.1.1;
k) clarification of the test conditions in 20.1 and 23.3;
l) clarifications of the requirements in 25.3.
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 2-49: Exigences particulières pour les appareils électriques à usage commercial destinés à maintenir au chaud les aliments et la vaisselle
IEC 60335-2-49:2021 est disponible sous forme de IEC 60335-2-49:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60335-2-49:2021 traite de la sécurité des appareils électriques à usage commercial destinés à maintenir au chaud les aliments et la vaisselle, 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.
La liste suivante répertorie les exemples d'appareils qui relèvent du domaine d'application de la présente norme:
– les armoires chauffantes, avec ou sans dessus chauffants;
– les dessus chauffants;
– les comptoirs de distribution chauffants;
– les distributeurs de vaisselle chaude;
– les tables chauffantes;
– les appareils de chauffage rayonnants.
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 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 bains-marie électriques à usage commercial (IEC 60335-2-50);
– aux appareils alimentés par batteries;
– aux plaques chauffantes et appareils analogues destinés à un usage domestique couverts par l'IEC 60335-2-12 et utilisés par des usagers non avertis dans les environnements suivants:
• les coins cuisines réservés au personnel des magasins, bureaux et autres environnements professionnels;
• les fermes;
• les hôtels, les motels et autres environnements résidentiels;
• les environnements de type chambres d'hôtes.
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) introduction d'exigences pour les appareils destinés à être utilisés dans des lieux ouverts au public, y compris les températures des surfaces accessibles extérieures (Article 1, 7.12, 11.8, Tableau 102);
c) exclusion des appareils alimentés par batteries (Article 1);
d) clarification de la norme applicable aux appareils destinés à être utilisés par des usagers non avertis (Article 1, 7.12);
e) déplacement des instructions pour le nettoyage du 7.12.1 au 7.12;
f) déplacement du 24.101 au 22.106;
g) alignement du texte de l'IEC 60335-2-49 sur d'autres normes sous l'IEC/TC61/MT32;
h) conversion en texte normatif, modification ou suppression de certaines
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IEC 60335-2-49 ®
Edition 5.0 2021-11
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-49: Particular requirements for commercial electric appliances for
keeping food and crockery warm
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
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latest edition, a corrigendum or an amendment might have been published.
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IEC 60335-2-49 ®
Edition 5.0 2021-11
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-49: Particular requirements for commercial electric appliances for
keeping food and crockery warm
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.030 ISBN 978-2-8322-4090-8
– 2 – IEC 60335-2-49:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 General requirement . 11
5 General conditions for the tests . 11
6 Classification . 12
7 Marking and instructions . 12
8 Protection against access to live parts . 16
9 Starting of motor-operated appliances . 16
10 Power input and current . 16
11 Heating . 17
12 Void Charging of metal-ion batteries . 20
13 Leakage current and electric strength at operating temperature . 20
14 Transient overvoltages . 21
15 Moisture resistance . 21
16 Leakage current and electric strength . 23
17 Overload protection of transformers and associated circuits . 23
18 Endurance . 23
19 Abnormal operation . 23
20 Stability and mechanical hazards . 25
21 Mechanical strength . 26
22 Construction . 26
23 Internal wiring . 27
24 Components . 28
25 Supply connection and external flexible cords . 28
26 Terminals for external conductors . 29
27 Provision for earthing . 29
28 Screws and connections . 29
29 Clearances, creepage distances and solid insulation . 30
30 Resistance to heat and fire . 30
31 Resistance to rusting . 30
32 Radiation, toxicity and similar hazards . 30
Annexes . 35
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 36
Annex N (normative) Proof tracking test .
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 38
Bibliography . 39
Figure 103 101 – Probe for measuring surface temperatures . 31
Figure 102 – Identification of surfaces for temperature measurement . 32
Figure 101 103 – Splash apparatus. 34
Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 19
Table 102 – Maximum temperature rises of external accessible surfaces for appliances
intended to be installed in areas open to the public under normal operating conditions . 20
Table 102 103 – Assembling torques for screwed connections providing earthing
continuity . 30
– 4 – IEC 60335-2-49:2021 RLV © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-49: Particular requirements for commercial electric
appliances for keeping food and crockery warm
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,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of 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
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) 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) 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 60335-2-49:2002+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 60335-2-49 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) introduction of requirements for appliances intended for use in areas open to the public,
including external accessible surface temperatures (Clause 1, 7.12, 11.8, Table 102);
c) exclusion of battery-operated appliances (Clause 1);
d) clarification of applicable standard for appliances for use by laymen (Clause 1, 7.12);
e) relocation of cleaning instructions from 7.12.1 to 7.12;
f) relocation of 24.101 to 22.106;
g) conciliation of the text of IEC 60335-2-49 with other standards under IEC/TC61/MT32;
h) some notes have been converted to normative text, modified or deleted (Clause 1, 7.1, 7.15,
11.3, 11.7, 15.2, 19.2, 22.101, 23.3);
i) additional requirements for measurement of input current;
j) clarification of the testing procedure in 15.1.1;
k) clarification of the test conditions in 20.1 and 23.3;
l) clarifications of the requirements in 25.3.
The text of this International Standard is based on t
...
IEC 60335-2-49 ®
Edition 5.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-49: Particular requirements for commercial electric appliances for
keeping food and crockery warm
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-49: Exigences particulières pour les appareils électriques à usage
commercial destinés à maintenir au chaud les aliments et la vaisselle
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
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ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
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les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
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IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
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need further assistance, please contact the Customer Service
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IEC 60335-2-49 ®
Edition 5.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-49: Particular requirements for commercial electric appliances for
keeping food and crockery warm
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-49: Exigences particulières pour les appareils électriques à usage
commercial destinés à maintenir au chaud les aliments et la vaisselle
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.030 ISBN 978-2-8322-1039-6
– 2 – IEC 60335-2-49:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 General requirement . 11
5 General conditions for the tests . 11
6 Classification . 12
7 Marking and instructions . 12
8 Protection against access to live parts . 15
9 Starting of motor-operated appliances . 15
10 Power input and current . 16
11 Heating . 17
12 Charging of metal-ion batteries . 20
13 Leakage current and electric strength at operating temperature . 20
14 Transient overvoltages . 21
15 Moisture resistance . 21
16 Leakage current and electric strength . 22
17 Overload protection of transformers and associated circuits . 22
18 Endurance . 22
19 Abnormal operation . 22
20 Stability and mechanical hazards . 24
21 Mechanical strength . 25
22 Construction . 25
23 Internal wiring . 26
24 Components . 27
25 Supply connection and external flexible cords . 27
26 Terminals for external conductors . 27
27 Provision for earthing . 27
28 Screws and connections . 28
29 Clearances, creepage distances and solid insulation . 28
30 Resistance to heat and fire . 29
31 Resistance to rusting . 29
32 Radiation, toxicity and similar hazards . 29
Annexes . 32
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 33
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 34
Bibliography . 35
Figure 101 – Probe for measuring surface temperatures . 29
Figure 102 – Identification of surfaces for temperature measurement . 30
Figure 103 – Splash apparatus . 31
Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 19
Table 102 – Maximum temperature rises of external accessible surfaces for appliances
intended to be installed in areas open to the public under normal operating conditions . 20
Table 103 – Assembling torques for screwed connections providing earthing continuity . 28
– 4 – IEC 60335-2-49:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-49: Particular requirements for commercial electric
appliances for keeping food and crockery warm
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,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of 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
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible
...
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