EN IEC 60335-2-90:2021

Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens

IEC 60335-2-90:2015(E) deals with - the safety of microwave ovens with a cavity door intended for commercial 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; - the safety of combination microwave ovens with a cavity door, the requirements for which are contained in Annex AA; - the safety of microwave ovens without a cavity door and with transportation means that are intended for commercial use only, for the heating of food and beverages, the requirements for which are contained in Annex BB. Microwave ovens covered by Annex BB have transportation means for moving the load through the microwave oven. Requirements for tunnel microwave ovens and several types of microwave vending machines are covered. This standard also deals with microwave ovens intended to be used on board ships, for which Annex EE is applicable. In general, this standard does not take into account the use of appliances by young children or infirm persons without supervision or children playing with the appliance. This international standard does not take into account the use of a microwave oven without a cavity door and with transportation means by ordinary persons except in the vicinity of entrance and exit ports. This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments. It was established on the basis of the fifth edition (2010) of that standard. This fourth edition cancels and replaces the third edition published in 2006 including its Amendment 1 (2010) and Amendment 2 (2014). It constitutes a technical revision. The principal changes with respect to the previous edition are as follows (minor and editorial changes are not listed): - a statement in 7.12 is required for appliances intended to be used on commercial road vehicles; - a statement in 7.12 is required concerning cleaning of the appliance with a water jet; - the replacement of 22.103, 22.104 and 22.105 allows interlock systems with at least one concealed door interlock as well as alternative interlock systems without concealed door interlock; - requirements are added for appliances for installation in commercial road vehicles; - an annex is added dealing with routine tests. 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 standard be adopted for implementation nationally not earlier than 12 months or later than 36 months from the date of its publication. Key words: Microwave, Microwave Oven, Microwave enclosure

Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-90: Besondere Anforderungen für gewerbliche Mikrowellenkochgeräte

Appareils électrodomestiques et analogues - Sécurité - Partie 2-90: Exigences particulières pour les fours à micro-ondes à usage commercial

L'IEC 60335-2-90:2015 traite de la sécurité: - des fours à micro-ondes à usage commercial avec une porte de cavité dont la tension assignée n'est pas supérieure à 250 V pour les appareils monophasés raccordés entre phase et neutre et 480 V pour les autres appareils; - des fours à micro-ondes combinés avec une porte de cavité, dont les exigences sont contenues à l'Annexe AA; - des fours à micro-ondes sans porte de cavité et avec moyen de transport qui sont destinés à un usage commercial uniquement, pour le chauffage des aliments et des boissons, dont les exigences sont contenues à l'Annexe BB. Les fours à micro-ondes couverts par l'Annexe BB comportent un moyen de transport pour déplacer la charge micro-ondes à travers le four à micro-ondes. Les exigences pour les tunnels à micro-ondes et pour plusieurs types de distributeurs à micro-ondes sont couvertes. La présente norme traite également des fours à micro-ondes destinés à être utilisés à bord de navires et pour lesquels l'Annexe EE est applicable. Dans l'Annexe BB, un four à micro-ondes sans porte de cavité et avec moyen de transport est décrit en tant que four à micro-ondes. Tous les articles de cette norme s'appliquent à ces appareils sauf spécification contraire dans l'Annexe BB. La présente Norme internationale prend également en compte les personnes ordinaires ayant accès à la zone de retrait du distributeur automatique. L'appareil peut être construit dans un distributeur automatique, auquel cas l'IEC 60335-2-75 peut aussi s'appliquer. Les appareils qui utilisent une énergie non électrique sont compris dans le domaine d'application de la présente norme. La présente norme ne tient en général pas compte: - de l'utilisation des appareils par de jeunes enfants ou des personnes handicapées sans surveillance; - de l'emploi de l'appareil comme jouet par de jeunes enfants. La présente Norme internationale ne prend pas en compte l'utilisation d'un four à micro-ondes sans porte de cavité et avec moyen de transport par des personnes ordinaires, sauf à proximité des orifices d'entrée et de sortie. Dans l'Annexe BB figurent les justifications pour des conditions particulières d'exposition aux micro-ondes et des mesures liées à l'énergie micro-ondes confinée par une structure ouverte. 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; - pour les appareils destinés à être utilisés dans les pays tropicaux, des exigences spéciales 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 similaires; - dans de nombreux pays, les organismes nationaux responsables spécifient des exigences supplémentaires à celles de BB.22.119.1. La présente norme ne s'applique pas: - aux fours à micro-ondes à usage domestique, y compris les fours à micro-ondes combinés (IEC 60335-2-25); - au matériel industriel de chauffage à micro-ondes (IEC 60519-6); - aux appareils à but médical (IEC 60601); - aux appareils destinés à être utilisés dans des locaux présentant des conditions particulières, telles que la présence d'une atmosphère corrosive

Gospodinjski in podobni električni aparati - Varnost - 2-90. del: Posebne zahteve za mikrovalovne pečice za komercialno uporabo

General Information

• Status: Published
• Publication Date: 30-Sep-2021
• ICS: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances
• Technical Committee: CLC/TC 61 - Safety of household and similar electrical appliances
• Drafting Committee: IEC/SC 61B - IEC_SC_61B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 01-Oct-2021
• Completion Date: 01-Oct-2021
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• 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: SIST EN IEC 60335-2-90:2021 - Household and similar appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens

Relations

• Replaces: EN 60335-2-90:2006/A1:2010 - Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 05-Oct-2021
• Replaces: EN 60335-2-90:2006 - Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 04-Nov-2014
• Amended By: EN IEC 60335-2-90:2021/prAA - Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 28-Jun-2022
• Amended By: EN IEC 60335-2-90:2021/A1:2021 - Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 18-Aug-2020

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2021
Nadomešča:
SIST EN 60335-2-90:2006
SIST EN 60335-2-90:2006/A1:2011
Gospodinjski in podobni električni aparati - Varnost - 2-90. del: Posebne zahteve
za mikrovalovne pečice za komercialno uporabo
Household and similar appliances - Safety - Part 2-90: Particular requirements for
commercial microwave ovens
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-90:
Besondere Anforderungen für gewerbliche Mikrowellenkochgeräte
Appareils électrodomestiques et analogues - Sécurité - Partie 2-90: Règles particulières
pour les fours à micro-ondes à usage commercial
Ta slovenski standard je istoveten z: EN IEC 60335-2-90:2021
ICS:
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60335-2-90

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2021
ICS 97.040.20 Supersedes EN 60335-2-90:2006 and all of its
amendments and corrigenda (if any)
English Version
Household and similar appliances - Safety - Part 2-90: Particular
requirements for commercial microwave ovens
(IEC 60335-2-90:2015)
Appareils électrodomestiques et analogues - Sécurité - Sicherheit elektrischer Geräte für den Hausgebrauch und
Partie 2-90: Règles particulières pour les fours à micro- ähnliche Zwecke - Teil 2-90: Besondere Anforderungen für
ondes à usage commercial gewerbliche Mikrowellenkochgeräte
(IEC 60335-2-90:2015) (IEC 60335-2-90:2015)
This European Standard was approved by CENELEC on 2015-10-02. 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.
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 European Standard 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 IEC 60335-2-90:2021 E

European foreword
This document EN IEC 60335-2-90:2021 consists of the text of IEC 60335-2-90:2015 prepared by
IEC/TC 61 "Safety of household and similar electrical appliances".
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-02-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-08-20
document have to be withdrawn
This document supersedes EN 60335-2-90:2006 and all of its amendments and corrigenda (if any).
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 standard is not linked to any European legislation.
This standard shall be read in conjunction with EN 60335-1:2012+A11:2014+ A13:2017+A1:2019+
A14:2019+A2:2019
Endorsement notice
The text of the International Standard IEC 60335-2-90:2015 was approved by CENELEC as a
European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60335-2-25 NOTE Harmonized as EN 60335-2-25
IEC 60335-2-36 NOTE Harmonized as EN 60335-2-36
IEC 60335-2-42 NOTE Harmonized as EN 60335-2-42
IEC 60335-2-49 NOTE Harmonized as EN 60335-2-49
IEC 60335-2-75 NOTE Harmonized as EN 60335-2-75
IEC 60519-6 NOTE Harmonized as EN 60519-6
IEC 61270-1 NOTE Harmonized as EN 61270-1

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, except as follows:
Publication Year Title EN/HD Year
Addition
IEC 60068-2-6 - Environmental testing - Part 2-6: Tests - EN 60068-2-6 2008
Test Fc: Vibration (sinusoidal)
IEC 60068-2-27 - Environmental testing - Part 2-27: Tests - EN 60068-2-27 2009
Test Ea and guidance: Shock
IEC 60436 (mod) 2004 Electric dishwashers for household use - EN 50242 2016
Methods for measuring the performance
+AMD1 2009  -
+AMD2 2012 - -
IEC 60335-2-90 ®
Edition 4.0 2015-08
INTERNATIONAL
STANDARD
Household and similar electrical appliances – Safety –

Part 2-90: Particular requirements for commercial microwave ovens

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.040.20 ISBN 978-2-8322-2857-9

– 2 – IEC 60335-2-90:2015 © IEC 2015
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Definitions . 9
4 General requirement . 12
5 General conditions for the tests . 12
6 Classification . 13
7 Marking and instructions . 13
8 Protection against access to live parts . 15
9 Starting of motor-operated appliances . 15
10 Power input and current . 15
11 Heating . 15
12 Void . 16
13 Leakage current and electric strength at operating temperature . 16
14 Transient overvoltages . 16
15 Moisture resistance . 16
16 Leakage current and electric strength. 16
17 Overload protection of transformers and associated circuits . 17
18 Endurance . 17
19 Abnormal operation . 18
20 Stability and mechanical hazards . 19
21 Mechanical strength . 20
22 Construction . 22
23 Internal wiring . 26
24 Components . 26
25 Supply connection and external flexible cords . 27
26 Terminals for external conductors . 28
27 Provision for earthing . 28
28 Screws and connections . 28
29 Clearances, creepage distances and solid insulation . 28
30 Resistance to heat and fire . 28
31 Resistance to rusting . 28
32 Radiation, toxicity and similar hazards . 28
Annex A (informative) Routine tests. 30
Annex AA (normative) Combination microwave ovens . 32
Annex BB (normative) Requirements for commercial microwave ovens without a cavity
door and with conveyor-type means . 34
Annex CC (informative) Overview of the requirements for covers, means of access and
similar . 47
Annex DD (informative) Rationales for the microwave barrier and associated leakage
tests . 48

IEC 60335-2-90:2015 © IEC 2015 – 3 –
Annex EE (normative) Microwave ovens intended to be used on board ships . 54
Bibliography . 57

Figure 101 – Test rod for interlock concealment . 29
Figure BB.1 – Splash apparatus . 44
Figure BB.2 – Arrangement for measurement of microwave leakage from access
openings . 45
Figure BB.3 – Examples of definitions of Clause 3 and Clause BB.3 . 46

Table 101 – Number of potatoes . 19
Table BB.101 – Specifications for microwave barriers . 41

– 4 – IEC 60335-2-90:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –

Part 2-90: Particular requirements for commercial microwave ovens

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 St
...