IEC 60335-2-110:2024
(Main)Household and similar electrical appliances - Safety - Part 2-110: Particular requirements for commercial microwave appliances with insertion or contacting applicators
Household and similar electrical appliances - Safety - Part 2-110: Particular requirements for commercial microwave appliances with insertion or contacting applicators
IEC 60335-2-110:2024 is available as IEC 60335-2-110:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60335-2-110:2024 deals with the safety of microwave appliances 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.
As far as is practicable, this standard deals with the common hazards presented by these types of appliances.
Appliances covered by this standard incorporate an open-ended applicator for treatment of the load. They are divided into three types:
- with insertion applicator, typically for moisture removal by insertion into holes in floors, walls or ceilings;
- with large area contacting applicator, typically for drying of floors, walls or ceilings;
- with small area contacting applicator, typically for paint removal and spot-heating.
Microwave appliances with insertion applicator, large area contacting applicator or small area contacting applicator are using electromagnetic energy in one or several of the ISM frequency bands between 300 MHz and 30 GHz, for supplying energy to an external load which is heated so that a resulting process of drying, moisture transport which can result in forces due to formation of steam, decomposition or chemical modification, melting, or termination of organisms such as bacteria or fungus occurs.
Appliances with insertion applicator and with large area contacting applicator are portable appliances. Appliances with small area contacting applicator are handheld appliances.
Appliances that use non-electrical energy are within the scope of this standard. The microwave-related portion is considered motor-operated.
The rationales for the microwave barrier and associated leakage tests are described in informative Annex AA.
Attention is drawn to the fact that
- these appliances can radiate microwave energy outside a restricted area where they are used. The additional requirements specified by national authorities responsible for the protection for non-ionising radiation that the limit of power flux density is 10 W/m2, averaged over any time period of 6 min, outside this restricted area is taken into consideration in this standard;
- these appliances are intended to exclusively treat the load in normal operation, i.e. this standard does not apply to appliances or systems employing free space microwave propagation;
- for appliances intended to be used in tropical countries, special requirements can be necessary;
- in many countries, additional requirements are specified by the national health authorities, and national authorities responsible for the protection of labour and for non-ionising radiation protection.
This standard does not apply to
- household microwave ovens, including combination microwave ovens (IEC 60335-2-25);
- commercial microwave ovens with a cavity door, commercial combination microwave ovens with a cavity door and commercial microwave ovens without a cavity door and with transportation means (IEC 60335-2-90);
- industrial microwave heating equipment (IEC 60519-6);
- appliances for medical purposes (IEC 60601-1);
- appliances and equipment for laboratory use (IEC 61010 series);
- 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);
Some of the specifications and tests in this standard are not applicable for other than 2 450 MHz appliances.
This second edition cancels and replaces the first edition published in 2013 and Amendment 1:2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- Subclause 7.1 has been improved in clarity.
- Subclauses 19.11.2 and 19.103 have been improved in clarity.
- Clause 28 has been m
Appareils électrodomestiques et analogues - Sécurité - Partie 2-110: Exigences particulières pour les appareils à micro-ondes à usage commercial avec applicateurs par insertion ou par contact
IEC 60335-2-110:2024 est disponible sous forme de IEC 60335-2-110:2024 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 60335-2-110:2024 traite de la sécurité des appareils à micro-ondes à usage commercial 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.
Dans la mesure du possible, la présente norme traite des dangers courants que présentent ces types d'appareils.
Les appareils couverts par la présente norme comportent un applicateur ouvert destiné au traitement de la charge. Ils sont classés en trois types:
- les appareils avec applicateur par insertion, généralement destinés à l'élimination de l'humidité par insertion dans des trous au plancher, au mur ou au plafond;
- les appareils avec applicateur par contact de grande surface, généralement destinés au séchage de planchers, murs ou plafonds;
- les appareils avec applicateur par contact de petite surface, généralement destinés au décapage de peinture et au chauffage localisé.
Les appareils à micro-ondes avec applicateur par insertion, applicateur par contact de grande surface ou applicateur par contact de petite surface utilisent l'énergie électromagnétique sur une ou plusieurs bandes de fréquences ISM comprises entre 300 MHz et 30 GHz pour fournir de l'énergie à une charge externe qui est chauffée de manière à assurer le séchage, où le transport d'humidité peut conduire à la génération de forces causée par la formation de vapeur, la décomposition ou la modification chimique, la fusion ou la destruction d'organismes tels que les bactéries ou les champignons.
Les appareils avec applicateur par insertion et avec applicateur par contact de grande surface sont des appareils mobiles. Les appareils avec applicateur par contact de petite surface sont des appareils portatifs.
Les appareils qui utilisent une énergie non électrique relèvent du domaine d'application de la présente norme. La section à micro-ondes est considérée comme un appareil à moteur.
La justification de la barrière micro-ondes et des essais de fuite associés est décrite dans l'Annexe AA informative.
L'attention est attirée sur le fait que
- ces appareils peuvent rayonner de l'énergie micro-ondes à l'extérieur d'une zone restreinte, où ils sont utilisés. La présente norme prend en compte les exigences supplémentaires spécifiées par les organismes nationaux responsables de la protection contre les rayonnements non ionisants, selon lesquelles la puissance surfacique à l'extérieur de cette zone restreinte est limitée à une moyenne de 10 W/m2 par période de 6 min;
- ces appareils sont exclusivement destinés à traiter la charge dans les conditions de fonctionnement normal; autrement dit, la présente norme ne s'applique pas aux appareils ou systèmes qui ont recours à la propagation de micro-ondes en espace libre;
- pour les appareils destinés à être utilisés dans des pays tropicaux, des exigences particulières peuvent être nécessaires;
- dans de nombreux pays, des exigences complémentaires sont spécifiées par les organismes nationaux de la santé publique et par les organismes nationaux responsables de la protection des travailleurs et de la protection contre les rayonnements non ionisants.
La présente norme ne s'applique pas
- aux fours à micro-ondes domestiques, y compris les fours à micro-ondes combinés (IEC 60335-2-25);
- aux fours à micro-ondes à usage commercial avec porte de cavité, aux fours à micro-ondes combinés à usage commercial avec porte de cavité et aux fours à micro-ondes combinés à usage commercial sans porte de cavité et avec moyen de transport (IEC 60335-2-90);
- aux installations de chauffage industriel à hyperfréquences (IEC 60519-6);
- aux appareils destinés à des usages médicaux (IEC 60601-1);
- aux appareils et équipements destinés à un usag
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IEC 60335-2-110 ®
Edition 2.0 2024-07
REDLINE VERSION
INTERNATIONAL
STANDARD
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Household and similar electrical appliances – Safety –
Part 2-110: Particular requirements for commercial microwave appliances with
insertion or contacting applicators
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IEC 60335-2-110 ®
Edition 2.0 2024-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-110: Particular requirements for commercial microwave appliances with
insertion or contacting applicators
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.040.20 ISBN 978-2-8322-9408-6
– 2 – IEC 60335-2-110:2024 RLV © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 2
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 10
4 General requirement . 11
5 General conditions for the tests . 14
6 Classification . 14
7 Marking and instructions . 14
8 Protection against access to live parts . 18
9 Starting of motor-operated appliances . 18
10 Power input and current . 19
11 Heating . 19
12 Charging of metal-ion batteries . 19
13 Leakage current and electric strength at operating temperature . 19
14 Transient overvoltages . 19
15 Moisture resistance . 19
16 Leakage current and electric strength . 20
17 Overload protection of transformers and associated circuits . 20
18 Endurance . 20
19 Abnormal operation . 21
20 Stability and mechanical hazards . 22
21 Mechanical strength . 22
22 Construction . 24
23 Internal wiring . 27
24 Components . 27
25 Supply connection and external flexible cords . 28
26 Terminals for external conductors . 28
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
101 Protection against accessibility to microwave-containing regions . 31
Annexes . 40
Annex AA (informative) Rationales for the microwave barrier and associated leakage
tests . 41
Bibliography . 47
Figure 101 – Test rod for interlock concealment . 34
Figure 102 – Arrangement for measurement of microwave leakage . 34
Figure 103 – Construction site, overview of different applicator types and their use . 35
Figure 104 – Large area contacting applicator without traction drive . 36
Figure 105 – Large area contacting applicator with traction drive . 37
Figure 106 – Insertion applicator . 38
Figure 107 – Small area contacting applicator . 39
Table 101 – Assembling torques for screwed connections providing earthing continuity . 30
Table 101 102 – Specifications for microwave barriers . 33
– 4 – IEC 60335-2-110:2024 RLV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-110: Particular requirements for commercial microwave
appliances with insertion or contacting applicators
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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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
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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 60335-2-110:2013+AMD1:2019 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 60335-2-110 has been prepared by subcommittee 61B: Safety of microwave appliances for
household and commercial use, of IEC technical committee 61: Safety of household and similar
electrical appliances. It is an International Standard.
This second edition cancels and replaces the first edition published in 2013 and
Amendment 1:2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– Subclause 7.1 has been improved in clarity.
– Subclauses 19.11.2 and 19.103 have been improved in clarity.
– Clause 28 has been modified to add screw requirements.
The text of this International Standard is based on the following documents:
Draft Report on voting
61B/688/CDV 61B/691A/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 is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2
...
IEC 60335-2-110 ®
Edition 2.0 2024-07
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-110:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-110: Particular requirements for commercial microwave appliances with
insertion or contacting applicators
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.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
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.
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IEC 60335-2-110 ®
Edition 2.0 2024-07
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-110:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-110: Particular requirements for commercial microwave appliances with
insertion or contacting applicators
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.040.20 ISBN 978-2-8322-9411-6
IEC 60335-1:2020/ISH1:2021 – 1 –
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60335-1
Edition 6.0 2020-09
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –
Part 1: General requirements
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 61: Safety of
household and similar electrical appliances.
The text of this Interpretation Sheet is based on the following documents:
Draft Report on voting
61/5999/DISH 61/6009/RVDISH
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
___________
INTRODUCTION
Edition 6 of IEC 60335-1:2020 defines and introduces requirements for a detachable
power supply part of an appliance. In the document, 24.2 prohibits the use of a power
supply in a flexible cord.
QUESTION:
Does Subclause 24.2 prohibit the use of a detachable power supply part?
ANSWER
No, a "detachable power supply part" is a defined term and is not captured by the term
"power supply" as used in Subclause 24.2.
NOTE A detachable power supply part is captured by the defined term when the output of the power supply
part is detachable from the class III construction part of the appliance at:
– the power supply part, or
– the class III construction part of the appliance.
However, the supply cord (if any) does not have to be detachable from the detachable power supply part.
ICS 13.120; 97.030
IEC 60335-1:2020-09/ISH1:2021-11(en)
– 2 – IEC 60335-2-110:2024 EXV © IEC 2024
CONTENTS
FOREWORD . 6
INTRODUCTION to IEC 60335-1:2020 . 9
INTRODUCTION to IEC 60335-2-110:2024 . 11
1 Scope . 12
2 Normative references . 13
3 Terms and definitions . 18
4 General requirement . 33
5 General conditions for the tests . 33
6 Classification . 37
7 Marking and instructions . 38
8 Protection against access to live parts . 49
9 Starting of motor-operated appliances . 51
10 Power input and current . 52
11 Heating . 54
12 Charging of metal-ion batteries . 60
13 Leakage current and electric strength at operating temperature . 61
14 Transient overvoltages . 64
15 Moisture resistance . 65
16 Leakage current and electric strength . 67
17 Overload protection of transformers and associated circuits . 70
18 Endurance . 70
19 Abnormal operation . 71
20 Stability and mechanical hazards . 82
21 Mechanical strength . 83
22 Construction . 86
23 Internal wiring . 102
24 Components . 104
25 Supply connection and external flexible cords . 109
26 Terminals for external conductors . 116
27 Provision for earthing . 119
28 Screws and connections . 121
29 Clearances, creepage distances and solid insulation . 124
30 Resistance to heat and fire . 132
31 Resistance to rusting . 137
32 Radiation, toxicity and similar hazards . 137
101 Protection against accessibility to microwave-containing regions . 138
Annex A (informative) Routine tests . 160
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 162
Annex C (normative) Ageing test on motors . 183
Annex D (normative) Thermal motor protectors . 184
Annex E (normative) Needle-flame test . 185
Annex G (normative) Safety isolating transformers . 188
Annex H (normative) Switches . 189
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 191
Annex J (normative) Coated printed circuit boards . 193
Annex K (informative) Overvoltage categories. 194
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 195
Annex M (informative) Pollution degree. 198
Annex N (normative) Proof tracking test . 199
Annex O (informative) Selection and sequence of the tests of Clause 30 . 200
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 205
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 207
Annex R (normative) Software evaluation . 210
Annex S (informative) Guidance for the application of this standard on measurement
of power input and current based on the requirements of 10.1 and 10.2 concerning the
representative period . 224
Annex T (normative) UV-C radiation effect on non-metallic materials . 225
Annex U (normative) Appliances intended for remote communication through public
networks . 228
Annex AA (informative) Rationales for the microwave barrier and associated leakage
tests . 232
Bibliography . 238
Index of defined terms . 241
Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 141
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 142
Figure 3 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral class II appliances and for parts of class ll construction . 143
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 144
Figure 5 – Small part . 145
Figure 6 – Example of an electronic circuit with low-power points . 145
Figure 7 – Test finger nail . 146
Figure 8 – Flexing test apparatus . 147
Figure 9 – C
...
IEC 60335-2-110 ®
Edition 2.0 2024-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-110: Particular requirements for commercial microwave appliances with
insertion or contacting applicators
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-110: Exigences particulières pour les appareils à micro-ondes à usage
commercial avec applicateurs par insertion ou par contact
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.
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.
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IEC 60335-2-110 ®
Edition 2.0 2024-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-110: Particular requirements for commercial microwave appliances with
insertion or contacting applicators
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-110: Exigences particulières pour les appareils à micro-ondes à usage
commercial avec applicateurs par insertion ou par contact
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.040.20 ISBN 978-2-8322-9124-5
– 2 – IEC 60335-2-110:2024 © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 10
4 General requirement . 13
5 General conditions for the tests . 14
6 Classification . 14
7 Marking and instructions . 14
8 Protection against access to live parts . 18
9 Starting of motor-operated appliances . 18
10 Power input and current . 19
11 Heating . 19
12 Charging of metal-ion batteries . 19
13 Leakage current and electric strength at operating temperature . 19
14 Transient overvoltages . 19
15 Moisture resistance . 19
16 Leakage current and electric strength . 19
17 Overload protection of transformers and associated circuits . 20
18 Endurance . 20
19 Abnormal operation . 21
20 Stability and mechanical hazards . 22
21 Mechanical strength . 22
22 Construction . 24
23 Internal wiring . 27
24 Components . 27
25 Supply connection and external flexible cords . 27
26 Terminals for external conductors . 28
27 Provision for earthing . 28
28 Screws and connections . 29
29 Clearances, creepage distances and solid insulation . 29
30 Resistance to heat and fire . 30
31 Resistance to rusting . 30
32 Radiation, toxicity and similar hazards . 30
101 Protection against accessibility to microwave-containing regions . 31
Annexes . 40
Annex AA (informative) Rationales for the microwave barrier and associated leakage
tests . 41
Bibliography . 47
Figure 101 – Test rod for interlock concealment . 33
Figure 102 – Arrangement for measurement of microwave leakage . 34
Figure 103 – Construction site, overview of different applicator types and their use . 35
Figure 104 – Large area contacting applicator without traction drive . 36
Figure 105 – Large area contacting applicator with traction drive . 37
Figure 106 – Insertion applicator . 38
Figure 107 – Small area contacting applicator . 39
Table 101 – Assembling torques for screwed connections providing earthing continuity . 29
Table 102 – Specifications for microwave barriers . 32
– 4 – IEC 60335-2-110:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-110: Particular requirements for commercial microwave
appliances with insertion or contacting applicators
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
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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 conform
...
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