prEN IEC 60335-2-12:2026

Household and similar electrical appliances - Safety - Part 2-12: Particular requirements for warming plates and similar appliances

This European standard deals with the safety of electric warming plates, warming trays and similar appliances intended to keep food or vessels warm, for household and similar purposes, their rated voltage being not more than 250 V including direct current (DC) supplied appliances and battery-operated appliances

Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-12: Besondere Anforderungen für Warmhalteplatten und ähnliche Geräte

Appareils électrodomestiques et analogues - Sécurité - Partie 2-12: Exigences particulières pour les chauffe-plats et appareils analogues

L’IEC 60335-2-12:2024 traite de la sécurité des chauffe-plats électriques et appareils analogues destinés à maintenir au chaud des aliments ou des récipients, pour usages domestiques et analogues, dont la tension assignée est inférieure ou égale à 250 V, y compris les appareils alimentés en courant continu et les appareils alimentés par batteries. Les appareils destinés à un usage domestique et analogue normal et qui peuvent être également utilisés par des usagers non avertis dans des magasins, chez des artisans et dans des fermes sont compris dans le domaine d'application de la présente norme. Toutefois, si l’appareil est destiné à être utilisé professionnellement pour garder des récipients au chaud ou pour préparer des aliments à des fins commerciales, l’appareil n’est pas considéré comme étant seulement à usage domestique et analogue. Dans la mesure du possible, la présente norme traite des dangers courants que présentent les appareils et auxquels sont exposés tous les individus à l'intérieur et autour de l'habitation. Cependant, elle ne tient en général pas compte – des personnes (y compris des enfants) dont les capacités physiques, sensorielles ou mentales; ou le manque d'expérience et de connaissance les empêchent d'utiliser l'appareil en toute sécurité sans surveillance ou instruction; – de l'utilisation de l'appareil comme jouet par des enfants. L’attention est attirée sur le fait que – pour les appareils destinés à être utilisés dans des véhicules ou à bord de navires ou d’aéronefs, des exigences supplémentaires peuvent être nécessaires; – dans de nombreux pays, des exigences supplémentaires sont spécifiées par les organismes nationaux de la santé publique, par les organismes nationaux responsables de la protection des travailleurs et par des organismes analogues. La présente norme ne s'applique pas – aux appareils constitués de matériaux souples tels que le tissu; – aux appareils destinés à être utilisés exclusivement dans des locaux qui présentent des conditions particulières, telles que la présence d'une atmosphère corrosive ou explosive (poussière, vapeur ou gaz); – aux appareils prévus exclusivement pour la restauration commerciale (IEC 60335 2 49, IEC 60335 2 50); – aux appareils prévus exclusivement pour des usages industriels; – aux meubles de maintien au chaud. Cette sixième édition annule et remplace la cinquième édition parue en 2002, son Amendement 1:2008 et son Amendement 2:2017. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) texte aligné sur l'IEC 60335-1:2020; b) transformation de certaines notes en texte normatif (Articles et paragraphes 1, 5.2, 7.12, 15.2, 15.101, 24.1.5); c) application du calibre d’essai 19 (8.1.1, 20.2, B.22.3, B.22.4); d) clarification de l'applicabilité des exigences pour la commande à distance (22.40, 22.49, 22.51). 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.

Gospodinjski in podobni električni aparati - Varnost - 2-12. del: Posebne zahteve za grelne plošče in podobne aparate

Ta evropski standard obravnava varnost električnih grelnih plošč, grelnih pladnjev in podobnih naprav, namenjenih za ohranjanje toplote hrane ali posod, za gospodinjske in podobne namene, pri čemer njihova naznačena napetost ne presega 250 V, vključno z napravami, ki jih napaja enosmerni tok (DC), in napravami na baterijski pogon.

General Information

• Status: Not Published
• Publication Date: 18-Apr-2027
• ICS: 13.120 - Domestic safety
• ICS: 97.040.50 - Small kitchen appliances
• Technical Committee: CLC/TC 61 - Safety of household and similar electrical appliances
• Drafting Committee: CLC/TC 61/WG 01 - Relation with standardization and legislation
• Current Stage: 4020 - Enquiry circulated - Enquiry
• Start Date: 24-Apr-2026
• Due Date: 14-Oct-2025
• Completion Date: 24-Apr-2026
• Directive: Harmonized Standard2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive:

  ---

  Harmonized Standard2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Mandate: M/536 - [C(2015)536] Standardisation request as regards radio equipment in support of Directive 2014/53/EU
• Ref Project: oSIST prEN IEC 60335-2-12:2026 - Household and similar electrical appliances - Safety - Part 2-12: Particular requirements for warming plates and similar appliances

Relations

• Amended By: prEN IEC 60335-2-12:2026/prAA:2026 - Household and similar electrical appliances - Safety - Part 2-12: Particular requirements for warming plates and similar appliances
• Effective Date: 05-Oct-2024
• Revises: EN 60335-2-12:2003/A1:2008 - Household and similar electrical appliances - Safety - Part 2-12: Particular requirements for warming plates and similar appliances
• Effective Date: 24-Sep-2024
• Revises: EN 60335-2-12:2003/A11:2019 - Household and similar electrical appliances - Safety - Part 2-12: Particular requirements for warming plates and similar appliances
• Effective Date: 24-Sep-2024
• Revises: EN 60335-2-12:2003/A2:2019 - Household and similar electrical appliances - Safety - Part 2-12: Particular requirements for warming plates and similar appliances
• Effective Date: 24-Sep-2024
• Revises: EN 60335-2-12:2003 - Household and similar electrical appliances - Safety - Part 2-12: Particular requirements for warming plates and similar appliances
• Effective Date: 24-Sep-2024

Overview

prEN IEC 60335-2-12:2026 is a draft European standard developed by the CLC for the safety requirements of household and similar electrical appliances, specifically warming plates, warming trays, and comparable devices. The standard focuses on products intended to keep food or vessels warm for household use and similar purposes, with a rated voltage not exceeding 250 V, including both DC-supplied and battery-operated appliances.

This document is integral for manufacturers, testing organizations, and regulatory bodies seeking to ensure that warming plates and similar appliances meet rigorous safety standards, mitigate potential hazards, and support compliance with both European and international legislation.

Key Topics

• Scope and Applicability
  This standard covers electric warming plates and trays for household use and comparable environments such as staff kitchens in workplaces, hotels, and bed-and-breakfast accommodations. It is not applicable to appliances made exclusively for commercial catering or industrial purposes.

• Safety Requirements
  The standard details safety considerations addressing common electrical, mechanical, thermal, and fire hazards associated with warming plates. It incorporates requirements for protection against live parts, temperature limits on accessible surfaces, structural durability, and proper marking and user instructions.

• Testing Conditions
  Specific testing methodologies for electrical safety, moisture resistance, endurance, and abnormal operation are covered. Appliances must undergo rigorous assessments to ensure that any failure or misuse does not compromise user safety.

• User Information and Marking
  Manufacturers are required to provide clear instructions, warnings about hot surfaces, and usage guidelines. Specific symbols - such as the caution, hot surface indicator - must be visible and explained in the documentation.

• Battery and DC Supply
  Provisions are included for appliances powered by batteries and direct current, ensuring consistent safety standards for emerging appliance designs and portable applications.

Applications

For Manufacturers

• Ensures design and production processes meet stringent safety standards, reducing the risk of recalls and non-compliance.
• Supports market access in Europe and countries recognizing IEC standards, streamlining CE marking and other regulatory pathways.

For Testing Laboratories

• Provides consistent procedures to verify the safety of warming plates through standardized tests for electrical insulation, surface temperature, mechanical strength, and immersion resistance.

For Regulatory Authorities

• Serves as a reference for compliance verification in market surveillance and product certification processes.
• Helps align national regulations with the latest international safety practices for small kitchen appliances.

For Consumers and Retailers

• Enhances product safety assurance for electric warming plates and trays in home and light commercial environments.
• Encourages informed purchasing decisions with visible safety markings and usage instructions.

Related Standards

• IEC 60335-1: General requirements for safety of household and similar electrical appliances - the foundational document referenced throughout prEN IEC 60335-2-12.
• IEC 60335-2-49, IEC 60335-2-50: Safety requirements for appliances used in commercial catering or industrial applications, not covered by this standard.
• IEC 61032: Requirements for test probes used in testing access to hazardous parts.
• IEC 60320-1: Appliance couplers for household and similar purposes.
• CISPR 14-1/14-2 and IEC 61000 series: Electromagnetic compatibility requirements (emissions and immunity) for household appliances.

By adopting prEN IEC 60335-2-12:2026, stakeholders ensure that electric warming plates and similar appliances are safe, reliable, and suitable for household and similar environments, meeting the highest standards of electrical, mechanical, and user safety.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2026
Gospodinjski in podobni električni aparati - Varnost - 2-12. del: Posebne zahteve
za grelne plošče in podobne aparate
Household and similar electrical appliances - Safety - Part 2-12: Particular requirements
for warming plates and similar appliances
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-12:
Besondere Anforderungen für Warmhalteplatten und ähnliche Geräte
Appareils électrodomestiques et analogues - Sécurité - Partie 2-12: Exigences
particulières pour les chauffe-plats et appareils analogues
Ta slovenski standard je istoveten z: prEN IEC 60335-2-12:2026
ICS:
13.120 Varnost na domu Domestic safety
97.040.50 Majhni gospodinjski aparati Small kitchen appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
prEN IEC 60335-2-12
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2026
ICS 97.040.30 Will supersede EN 60335-2-12:2003; EN 60335-2-
12:2003/A1:2008; EN 60335-2-12:2003/A11:2019; EN
60335-2-12:2003/A2:2019
English Version
Household and similar electrical appliances - Safety - Part 2-12:
Particular requirements for warming plates and similar
appliances
(IEC 60335-2-12:2024)
Appareils électrodomestiques et analogues - Sécurité - Sicherheit elektrischer Geräte für den Hausgebrauch und
Partie 2-12: Exigences particulières pour les chauffe- ähnliche Zwecke - Teil 2-12: Besondere Anforderungen für
plats et appareils analogues Warmhalteplatten und ähnliche Geräte
(IEC 60335-2-12:2024) (IEC 60335-2-12:2024)
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2026-07-17.
The text of this draft consists of the text of IEC 60335-2-12:2024.
If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 80667 Ref. No. prEN IEC 60335-2-12:2026 E

European foreword
This document (prEN IEC 60335-2-12:2026) consists of the text of document IEC 60335-2-12:2024,
prepared by IEC/TC 61 "Safety of household and similar electrical appliances".
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this document (doa) dav + 6 months
has to be announced at national level
• latest date by which this document has to be (dop) dav + 12 months
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards (dow) dav + 36 months
conflicting with this document have to be withdrawn (to be confirmed or
modified when voting)
This document will supersede EN 60335-2-12:2003 and all of its amendments and corrigenda (if any).
This document is read in conjunction with prEN IEC 60335-2-12:2026/prAA:2026.
This document has been prepared under a standardisation request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
For the relationship with EU Legislation, see informative Annexes ZZA and ZZC, which are an integral
part of prEN IEC 60335-2-12:2026/prAA:2026.

IEC 60335-2-12 ®
Edition 6.0 2024-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –

Part 2-12: Particular requirements for warming plates and similar appliances

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-12: Règles particulières pour les chauffe-plats et appareils analogues

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120, 97.040.50 ISBN 978-2-8322-9559-5

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

Figure 101 – Probe for measuring surface temperatures . 17

IEC 60335-2-12:2024 © IEC 2024 – 3 –
Table 101 – Maximum temperature rises of external accessible surfaces under normal
operating conditions . 12

– 4 – IEC 60335-2-12:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-12: Particular requirements for warming plates
and similar appliances
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
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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
may be required to implement this document. However, implementers are cautioned that this may not represent
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.
IEC 60335-2-12 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This sixth edition cancels and replaces the fifth 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) alignment with IEC 60335-1:2020;
b) conversion of some notes to normative text (Clause 1, 5.2, 7.12, 15.2, 15.101, 24.1.5);
c) application of test probe 19 (8.1.1, 20.2, B.22.3, B.22.4);

IEC 60335-2-12:2024 © IEC 2024 – 5 –
d) clarification of applicability of requirements for remote operation (22.40, 22.49, 22.51).
The text of this International Standard is based on the following documents:
Draft Report on voting
61/7265/FDIS 61/7283/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.
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/publications.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments 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 warming plates and similar
appliances.
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 60335-2-12:2024 © IEC 2024
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, or
• revised.
NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations can 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.

IEC 60335-2-12:2024 © IEC 2024 – 7 –
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 and takes into account the way in which electromagnetic
phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that there
is compatibility with the wiring rules when the appliance is connected to the supply mains.
However, national wiring rules can 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
...