oSIST prEN IEC 60335-2-74:2026

Household and similar electrical appliances - Safety - Part 2-74: Particular requirements for portable immersion heaters

The European standard deals with the safety of portable electric immersion heaters, their rated voltage voltage being not more than 250 V, for household and similar purposes.

Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-74: Besondere Anforderungen für ortsveränderliche Tauchheizgeräte

Appareils électrodomestiques et analogues - Sécurité - Partie 2-74: Exigences particulières pour les thermoplongeurs mobiles

IEC 60335-2-74:2021 est disponible sous forme de IEC 60335-2-74:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60335-2-74:2021 traite de la sécurité des thermoplongeurs mobiles électriques destinés à un usage domestique et analogue, dont la tension assignée est inférieure ou égale à 250 V.
Les appareils non destinés à un usage domestique normal, mais qui peuvent néanmoins constituer une source de danger pour le public, tels que les appareils destinés à être 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. Dans la mesure du possible, la présente norme traite des dangers courants que présentent les appareils et auxquels sont exposés tous les individus situés 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'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 et par des organismes similaires.
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 éléments chauffants incorporés dans des appareils mobiles, tels que les appareils de chauffage de liquides (IEC 60335 2 15);
– aux dispositifs de chauffage pour aquarium (IEC 60335-2-55);
– aux thermoplongeurs installés à poste fixe (IEC 60335-2-73).
– aux appareils alimentés par batteries.
Cette troisième édition annule et remplace la deuxième édition parue en 2002, l'Amendement 1:2006 et l'Amendement 2:2009. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le texte a été aligné sur l'IEC 60335-1:2020;
b) certaines notes ont été converties en texte normatif (Article 1, 7.1);
c) des exigences ont été ajoutées pour les appareils qui maintiennent un liquide à une température définie (19.1, 30.2).
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 - 2-74. del: Posebne zahteve za prenosne potopne grelnike

Evropski standard obravnava varnost prenosnih električnih potopnih grelnikov, katerih nazivna napetost ne presega 250 V, za gospodinjsko in podobno uporabo.

General Information

• Status: Not Published
• Public Enquiry End Date: 29-Jun-2026
• ICS: 13.120 - Domestic safety
• ICS: 97.040.50 - Small kitchen appliances
• Technical Committee: VGA - Safety of household and similar electrical appliances
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 04-May-2026
• Due Date: 21-Sep-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
• Directive:

  ---

  Not Harmonized2014/55/EU - Directive 2014/55/EU of the European Parliament and of The Council of 16 April 2014 on Electronic Invoicing in Public Procurement
• 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
• Mandate: M/585 - standardisation request to the European Telecommunications Standards Institute as regards radio equipment in support of Directive 2014/53/EU of the European Parliament and of the Council in conjunction with Commission Delegated Regulation
• Ref Project: prEN IEC 60335-2-74:2026 - Household and similar electrical appliances - Safety - Part 2-74: Particular requirements for portable immersion heaters

Relations

• Amended By: oSIST prEN IEC 60335-2-74:2026/oprAA:2026 - Household and similar electrical appliances - Safety - Part 2-74: Particular requirements for portable immersion heaters
• Effective Date: 10-Sep-2024
• Revises: SIST EN 60335-2-74:2003/A2:2010 - Household and similar electrical appliances - Safety -- Part 2-74: Particular requirements for portable immersion heaters
• Effective Date: 30-Jul-2024
• Revises: SIST EN 60335-2-74:2003 - Household and similar electrical appliances - Safety -- Part 2-74: Particular requirements for portable immersion heaters
• Effective Date: 30-Jul-2024
• Revises: SIST EN 60335-2-74:2003/A1:2006 - Household and similar electrical appliances - Safety -- Part 2-74: Particular requirements for portable immersion heaters
• Effective Date: 30-Jul-2024
• Revises: SIST EN 60335-2-74:2003/A11:2018 - Household and similar electrical appliances - Safety - Part 2-74: Particular requirements for portable immersion heaters
• Effective Date: 30-Jul-2024

Overview

oSIST prEN IEC 60335-2-74:2026 is a draft European standard developed by CLC, addressing the safety requirements for portable electric immersion heaters used in households and similar environments. These devices, operating at rated voltages not exceeding 250 V, are commonly used to heat water and other liquids. This standard is part of the comprehensive IEC 60335 series, which outlines safety criteria for a broad range of household electrical appliances. The document provides specific requirements to control electrical, mechanical, thermal, and fire hazards, ensuring user safety and product reliability.

Key Topics

• Scope and Applicability

  • Covers safety specifications for portable immersion heaters intended for domestic use and similar purposes.
  • Extends to heaters used by ordinary users in light industry, shops, and farms.
  • Excludes appliances for industrial use, those used in corrosive or explosive atmospheres, fixed immersion heaters, aquarium heaters, and battery-operated heaters.

• Safety and Protection

  • Sets out essential protection against live parts and hazards such as electric shock, fire, mechanical injury, and overheating.
  • Requires a minimum ingress protection rating of IPX7 to ensure safe operation in moist environments.
  • Mandates mechanical strength through drop and impact tests, particularly relevant for portable appliances.

• Markings and User Instructions

  • Appliances must be clearly marked with maximum and minimum immersion depths.
  • Instructions must include guidance on appropriate vessels, safe handling after unplugging, and warnings against touching hot elements or placing them on combustible surfaces.

• Operation and Testing

  • Detailed procedures for thermal testing, including operation at specified temperatures and test durations.
  • Requirements for construction integrity, wiring, earthing, and resistance to heat, fire, and rusting.
  • Stipulates that thermal cut-outs required for safety must not be self-resetting, reducing the risk of accidental reuse after malfunction.

Applications

Portable immersion heaters covered under oSIST prEN IEC 60335-2-74:2026 are widely used in:

• Households: Boiling water for beverages, cooking, and cleaning purposes.
• Agriculture: Preventing water in animal troughs from freezing.
• Light Industrial Settings: Small workshops and stores where heated liquids are occasionally needed.
• Educational and Community Facilities: For instant hot water needs in non-industrial environments.

This standard ensures that such appliances can be operated safely by lay users without exposure to excessive risks associated with electricity and high temperatures. Adequate labeling and robust construction contribute to the product’s longevity and user confidence.

Related Standards

The oSIST prEN IEC 60335-2-74:2026 standard is designed to be read in conjunction with, or as a supplement to, the following key standards:

• IEC 60335-1: Household and similar electrical appliances - Safety - Part 1: General requirements (core safety framework for all appliances).
• IEC 60335-2-15: Particular requirements for appliances for heating liquids (covers other liquid heating devices).
• IEC 60335-2-55: Particular requirements for electrical appliances for use with aquariums and garden ponds.
• IEC 60335-2-73: Particular requirements for fixed immersion heaters.

oSIST prEN IEC 60335-2-74:2026 supersedes the earlier EN 60335-2-74:2003 and its amendments, aligning with the latest safety approaches and harmonization efforts across Europe.

By following this standard, manufacturers, testing laboratories, and regulatory authorities can ensure that portable immersion heaters meet the essential safety requirements for entering the European market, promoting safer use of small kitchen appliances in domestic and similar scenarios.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2026
Gospodinjski in podobni električni aparati - Varnost - 2-74. del: Posebne zahteve
za prenosne potopne grelnike
Household and similar electrical appliances - Safety - Part 2-74: Particular requirements
for portable immersion heaters
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-74:
Besondere Anforderungen für ortsveränderliche Tauchheizgeräte
Appareils électrodomestiques et analogues - Sécurité - Partie 2-74: Exigences
particulières pour les thermoplongeurs mobiles
Ta slovenski standard je istoveten z: prEN IEC 60335-2-74:2026
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 60335-2-74
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2026
ICS 13.120; 97.040.50 Will supersede EN 60335-2-74:2003; EN 60335-2-
74:2003/A1:2006; EN 60335-2-74:2003/A2:2009; EN
60335-2-74:2003/A11:2018
English Version
Household and similar electrical appliances - Safety - Part 2-74:
Particular requirements for portable immersion heaters
(IEC 60335-2-74:2021)
Appareils électrodomestiques et analogues - Sécurité - Sicherheit elektrischer Geräte für den Hausgebrauch und
Partie 2-74: Exigences particulières pour les ähnliche Zwecke - Teil 2-74: Besondere Anforderungen für
thermoplongeurs mobiles ortsveränderliche Tauchheizgeräte
(IEC 60335-2-74:2021) (IEC 60335-2-74:2021)
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2026-07-10.

The text of this draft consists of the text of IEC 60335-2-74:2021.

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: 80441 Ref. No. prEN IEC 60335-2-74:2026 E

European foreword
This document (prEN IEC 60335-2-74:2026) consists of the text of document IEC 60335-2-74:2021,
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 60335-2-74:2003 and all of its amendments and corrigenda (if any).
This document is read in conjunction with prEN IEC 60335-2-74:2026/prAA:2026.

IEC 60335-2-74 ®
Edition 3.0 2021-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-74: Particular requirements for portable immersion heaters
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-74: Exigences particulières pour les thermoplongeurs mobiles
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120; 97.040.50 ISBN 978-2-8322-4112-7
– 2 – IEC 60335-2-74:2021 © IEC 2021
CONTENTS
FOREWORD. 3
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General requirement . 8
5 General conditions for the tests . 8
6 Classification . 8
7 Marking and instructions . 8
8 Protection against access to live parts . 8
9 Starting of motor-operated appliances . 9
10 Power input and current . 9
11 Heating . 9
12 Charging of metal-ion batteries . 9
13 Leakage current and electric strength at operating temperature . 9
14 Transient overvoltages . 9
15 Moisture resistance . 9
16 Leakage current and electric strength. 9
17 Overload protection of transformers and associated circuits. 9
18 Endurance . 9
19 Abnormal operation . 10
20 Stability and mechanical hazards . 10
21 Mechanical strength . 10
22 Construction . 10
23 Internal wiring . 10
24 Components . 10
25 Supply connection and external flexible cords . 11
26 Terminals for external conductors . 11
27 Provision for earthing . 11
28 Screws and connections . 11
29 Clearances, creepage distances and solid insulation . 11
30 Resistance to heat and fire . 11
31 Resistance to rusting . 11
32 Radiation, toxicity and similar hazards . 11
Annexes . 12
Bibliography . 13

IEC 60335-2-74:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –

Part 2-74: Particular requirements for portable immersion heaters

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
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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 60335-2-74 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This third edition cancels and replaces the second edition published in 2002, Amendment 1:
2006 and Amendment 2:2009. 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 (Clause 1, 7.1);
c) requirements for appliances that maintain a liquid at a set temperature are added (19.1,
30.2).
– 4 – IEC 60335-2-74:2021 © IEC 2021
The text of this International Standard is based on the following documents:
Draft Report on voting
61/6172/CDV 61/6293/RVC
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
...