SIST EN 60335-2-21:2022/A1:2022

Household and similar electrical appliances - Safety - Part 2-21: Particular requirements for storage water heaters

This European Standard deals with the safety of electric storage water heaters for household and similar purposes and intended for heating water below boiling temperature, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances.

Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-21: Besondere Anforderungen für Wassererwärmer (Warmwasserspeicher und Warmwasserboiler)

Appareils électrodomestiques et analogues - Sécurité - Partie 2-21: Règles particulières pour les chauffe-eau à accumulation

Gospodinjski in podobni električni aparati - Varnost - 2-21. del: Posebne zahteve za akumulacijske grelnike vode - Dopolnilo A1

Ta evropski standard obravnava varnost električnih akumulacijskih grelnikov vode za gospodinjsko in podobno uporabo, ki so namenjeni gretju vode do temperatur pod temperaturo vrelišča ter katerih nazivna napetost ne presega 250 V za enofazne aparate in 480 V za druge aparate.

General Information

• Status: Published
• Publication Date: 11-Jan-2022
• ICS: 13.120 - Domestic safety
• ICS: 91.140.65 - Water heating equipment
• Technical Committee: VGA - Safety of household and similar electrical appliances
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 13-Dec-2021
• Due Date: 17-Feb-2022
• Completion Date: 12-Jan-2022
• Directive: 2014/35/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
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: EN 60335-2-21:2021/A1:2021 - Household and similar electrical appliances - Safety - Part 2-21: Particular requirements for storage water heaters

Relations

• Amends: SIST EN 60335-2-21:2021 - Household and similar electrical appliances - Safety - Part 2-21: Particular requirements for storage water heaters
• Effective Date: 01-Feb-2022
• Revised: oSIST prEN IEC 60335-2-21:2024 - Household and similar electrical appliances - Safety - Part 2-21: Particular requirements for storage water heaters
• Effective Date: 31-Oct-2023

Overview

SIST EN 60335-2-21:2022/A1:2022 is a European standard published by CLC that specifies the safety requirements for household and similar electrical appliances, specifically focusing on electric storage water heaters. This standard applies to water heaters designed for heating water below boiling temperature, with rated voltages up to 250 V for single-phase appliances and up to 480 V for other appliances. It is an amendment (A1:2021) to the original EN 60335-2-21:2021 and incorporates updates aligned with IEC 60335-2-21:2012/A1:2018.

This standard ensures the safe design, manufacture, and operation of storage water heaters used in domestic and similar environments, providing guidelines on temperature limits, electrical safety, mechanical construction, and testing procedures.

Key Topics

• Scope and Application: Covers electric storage water heaters for household use with voltages up to specified limits; intended for heating water below boiling point.

• Safety Requirements: Specifies protection against electrical hazards, thermal injuries, and mechanical failures.

• Temperature Limits: Defines maximum allowable temperature rises on external accessible surfaces to prevent burns and other injuries.

• Testing Methods: Includes specialized procedures such as using a standardized temperature measurement probe (as shown in the standard’s Figure 103) to verify surface temperature rises.

• Compliance with EU Directives: Harmonized under the Low Voltage Directive 2014/35/EU, promoting conformity with essential safety objectives across Europe.

• Normative References: References related standards like IEC 60584-1 on thermocouples for temperature measurement, ensuring accuracy during testing.

• Amendments and Updates: Reflects the latest technical and safety improvements through amendment A1, reinforcing updated testing methods and requirements.

Applications

SIST EN 60335-2-21:2022/A1:2022 is critical for manufacturers, testing laboratories, and regulatory bodies involved with:

• Residential Electric Storage Water Heaters: Guaranteeing safe design and operation of units supplied for household hot water.

• Similar Appliances: Extends to appliances with comparable functions and design, ensuring a broad scope of safety coverage.

• Product Certification and Market Access: Helps manufacturers demonstrate compliance with European safety legislation, facilitating access to EU and EFTA markets.

• Quality Control and Safety Assurance: Provides manufacturers with clear guidelines for internal testing regimes to ensure product safety and reliability.

• Consumer Safety Enhancement: Mitigates risks of electric shock, burns, and mechanical hazards from storage water heaters in domestic environments.

Related Standards

• EN 60335-1: General safety requirements for household and similar electrical appliances, referenced within EN 60335-2-21 to cover overarching safety principles.

• IEC 60335-2-21:2012/A1:2018: The international base standard from which the European standard is derived, providing globally recognized criteria.

• IEC 60584-1:2013: Specifies EMF specifications and tolerances for thermocouples, referenced for accuracy in temperature measurement.

• EU Directive 2014/35/EU (Low Voltage Directive): The regulatory framework that harmonizes electrical safety laws in Europe, supported by compliance with this standard.

• Other Parts of IEC 60335 series: Address safety of various other household electrical appliances, complementing the focus on storage water heaters.

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By adhering to SIST EN 60335-2-21:2022/A1:2022, manufacturers and stakeholders ensure that electric storage water heaters comply with essential safety requirements, enhancing consumer protection and supporting regulatory compliance in the European market. This standard is essential for anyone involved in the design, testing, certification, and regulation of household water heating appliances.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2022
Gospodinjski in podobni električni aparati - Varnost - 2-21. del: Posebne zahteve
za akumulacijske grelnike vode - Dopolnilo A1
Household and similar electrical appliances - Safety - Part 2-21: Particular requirements
for storage water heaters
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-21:
Besondere Anforderungen für Wassererwärmer (Warmwasserspeicher und
Warmwasserboiler)
Appareils électrodomestiques et analogues - Sécurité - Partie 2-21: Règles particulières
pour les chauffe-eau à accumulation
Ta slovenski standard je istoveten z: EN 60335-2-21:2021/A1:2021
ICS:
13.120 Varnost na domu Domestic safety
91.140.65 Oprema za ogrevanje vode Water heating equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60335-2-21:2021/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM October 2021
ICS 13.120; 91.140.65
English Version
Household and similar electrical appliances - Safety - Part 2-21:
Particular requirements for storage water heaters
(IEC 60335-2-21:2012/A1:2018)
Appareils électrodomestiques et analogues - Sécurité - Sicherheit elektrischer Geräte für den Hausgebrauch und
Partie 2-21: Règles particulières pour les chauffe-eau à ähnliche Zwecke - Teil 2-21: Besondere Anforderungen für
accumulation Wassererwärmer (Warmwasserspeicher und
(IEC 60335-2-21:2012/A1:2018) Warmwasserboiler)
(IEC 60335-2-21:2012/A1:2018)
This amendment A1 modifies the European Standard EN 60335-2-21:2021; it was approved by CENELEC on 2021-10-04. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists 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,
Turkey and the United Kingdom.

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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60335-2-21:2021/A1:2021 E

European foreword
This document (EN 60335-2-21:2021/A1:2021) consists of the text of IEC 60335-2-21:2012/A1:2018
prepared by IEC/TC 61 “Safety of household and similar electrical appliances”.
The following dates is fixed:
• latest date by which this document has to be implemented at (dop) 2022-10-04
national level by publication of an identical national standard or
by endorsement
• latest date by which the national standards conflicting with this (dow) 2024-10-04
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This European Amendment A1 supplements or modifies the corresponding clauses of the standards below:
— EN 60335-1:2012+A11:2014+ A13:2017+A1:2019+A14:2019+A2:2019+A15:2021 (Part 1)
— EN 60335-2-21:2021(Part 2)
This document has been prepared under a Standardization Request given to CENELEC by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZZA, which is an integral part of
this document.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Annex ZC
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
The Annex ZC of part 1 is applicable, with the following addition:
Publication Year Title EN/HD Year
IEC 60584-1 2013 Thermocouples – Part 1: EMF specifications and EN 60584-1 2013
tolerances
Replace the Annex ZZA in Part 2 by the following:
Annex ZZA
(informative)
Relationship between this European Standard and the safety objectives
of Directive 2014/35/EU [2014 OJ L96] aimed to be covered
This European Standard has been prepared under a Commission’s standardization request relating to
harmonized standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means of
conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the Council of
26 February 2014 on the harmonization 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 [2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive, compliance
with the normative clau
...