IEC 62841-3-4:2016

IEC 62841-3-4 ®
Edition 1.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders

Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables

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
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About the IEC
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International Standards for all electrical, electronic and related technologies.

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IEC 62841-3-4 ®
Edition 1.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and

garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders

Outils électroportatifs à moteur, outils portables et machines pour jardins et

pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-3204-0

– 2 – IEC 62841-3-4:2016 © IEC 2016
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 6
4 General requirements . 7
5 General conditions for the tests . 7
6 Radiation, toxicity and similar hazards . 7
7 Classification . 7
8 Marking and instructions . 7
9 Protection against access to live parts . 9
10 Starting . 9
11 Input and current . 9
12 Heating . 9
13 Resistance to heat and fire . 9
14 Moisture resistance . 9
15 Resistance to rusting . 9
16 Overload protection of transformers and associated circuits . 9
17 Endurance . 10
18 Abnormal operation . 10
19 Mechanical hazards . 10
20 Mechanical strength . 14
21 Construction . 16
22 Internal wiring . 17
23 Components . 17
24 Supply connection and external flexible cables and cords . 17
25 Terminals for external conductors . 17
26 Provision for earthing . 17
27 Screws and connections . 17
28 Creepage distances, clearances and distances through insulation . 17
Annexes . 22
Annex I (informative) Measurement of noise and vibration emissions . 22
Bibliography . 23

Figure 101 – Bench grinder . 18
Figure 102 – Opening angles and dimensions for a guard . 19
Figure 103 – Transparent screen . 20
Figure 104 – Bench grinder with inclinable work rest . 20
Figure 105 – Flange dimensions . 21

Table 4 – Required performance levels . 10
Table 101 – Minimum flange dimensions (see Figure 105) . 13

Table 102 − Test torque for flanges . 13
Table 103 − Guard thickness for steel . 15
Table 104 − Guard thickness for aluminium . 15
Table 105 – Minimum tool spindle diameter . 16
Table I.101 – Operating conditions for bench grinders . 22

– 4 – IEC 62841-3-4:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 3-4: Particular requirements for transportable bench grinders

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
...

IEC 62841-3-4 ®
Edition 1.1 2019-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders

Outils électroportatifs à moteur, outils portables et machines pour jardins
et pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables

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.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
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et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
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les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office 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.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
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IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

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A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

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La recherche avancée permet de trouver des publications IEC monde, avec plus de 22 000 articles terminologiques en
en utilisant différents critères (numéro de référence, texte, anglais et en français, ainsi que les termes équivalents dans
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projets et les publications remplacées ou retirées. Electrotechnique International (IEV) en ligne.

IEC Just Published - webstore.iec.ch/justpublished Glossaire IEC - std.iec.ch/glossary
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Disponible en ligne et une fois par mois par email. publications IEC parues depuis 2002. Plus certaines entrées
antérieures extraites des publications des CE 37, 77, 86 et
Service Clients - webstore.iec.ch/csc CISPR de l'IEC.

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 62841-3-4 ®
Edition 1.1 2019-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and

garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders

Outils électroportatifs à moteur, outils portables et machines pour jardins

et pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-7132-2

IEC 62841-3-4 ®
Edition 1.1 2019-07
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders

Outils électroportatifs à moteur, outils portables et machines pour jardins
et pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables

– 2 – IEC 62841-3-4:2016+AMD1:2019 CSV
© IEC 2019
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 7
5 General conditions for the tests . 7
6 Radiation, toxicity and similar hazards . 7
7 Classification . 7
8 Marking and instructions . 7
9 Protection against access to live parts . 9
10 Starting . 9
11 Input and current . 9
12 Heating . 9
13 Resistance to heat and fire . 9
14 Moisture resistance . 9
15 Resistance to rusting . 9
16 Overload protection of transformers and associated circuits . 9
17 Endurance . 10
18 Abnormal operation . 10
19 Mechanical hazards . 10
20 Mechanical strength . 14
21 Construction . 16
22 Internal wiring . 17
23 Components . 17
24 Supply connection and external flexible cables and cords . 17
25 Terminals for external conductors . 17
26 Provision for earthing . 17
27 Screws and connections . 17
28 Creepage distances, clearances and distances through insulation . 17
Annexes . 22
Annex I (informative) Measurement of noise and vibration emissions . 22
Bibliography . 23

Figure 101 – Bench grinder . 18
Figure 102 – Opening angles and dimensions for a guard . 19
Figure 103 – Transparent screen . 20
Figure 104 – Bench grinder with inclinable work rest . 20
Figure 105 – Flange dimensions . 21
Figure 106 – Type 1 grinding wheel . 21

Table 4 – Required performance levels . 10

© IEC 2019
Table 101 – Minimum flange dimensions (see Figure 105) . 13
Table 102 − Test torque for flanges . 13
Table 103 − Guard thickness for steel . 15
Table 104 − Guard thickness for aluminium . 15
Table 105 – Minimum tool spindle diameter . 16
Table I.101 – Operating conditions for bench grinders . 22

– 4 – IEC 62841-3-4:2016+AMD1:2019 CSV
© IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 3-4: Particular requirements for transportable bench grinders
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
...

IEC 62841-3-4 ®
Edition 1.2 2024-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders

Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables

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.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

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.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.

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Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.

Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need

further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

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Le premier dictionnaire d'électrotechnologie en ligne au monde,
Restez informé sur les nouvelles publications IEC. Just
avec plus de 22 500 articles terminologiques en anglais et en
Published détaille les nouvelles publications parues.
français, ainsi que les termes équivalents dans 25 langues
Disponible en ligne et une fois par mois par email.
additionnelles. Egalement appelé Vocabulaire

Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
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IEC 62841-3-4 ®
Edition 1.2 2024-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-8376-9

IEC 62841-3-4 ®
Edition 1.2 2024-02
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders

Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables

– 2 – IEC 62841-3-4:2016+AMD1:2019
+AMD2:2024 CSV © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 7
5 General conditions for the tests . 7
6 Radiation, toxicity and similar hazards . 7
7 Classification . 7
8 Marking and instructions . 7
9 Protection against access to live parts . 9
10 Starting . 9
11 Input and current . 9
12 Heating . 10
13 Resistance to heat and fire . 10
14 Moisture resistance . 10
15 Resistance to rusting . 10
16 Overload protection of transformers and associated circuits . 10
17 Endurance . 10
18 Abnormal operation . 10
19 Mechanical hazards . 11
20 Mechanical strength . 16
21 Construction . 18
22 Internal wiring . 18
23 Components . 18
24 Supply connection and external flexible cables and cords . 18
25 Terminals for external conductors . 18
26 Provision for earthing . 19
27 Screws and connections . 19
28 Creepage distances, clearances and distances through insulation . 19
Annexes . 24
Annex I (informative) Measurement of noise and vibration emissions . 24
Bibliography . 25

Figure 101 – Bench grinder . 19
Figure 102 – Opening angles and dimensions for a guard . 20
Figure 103 – Transparent screen . 21
Figure 104 – Bench grinder with inclinable work rest . 21
Figure 105 – Flange dimensions . 22
Figure 106 – Type 1 grinding wheel . 22
Figure 107 – Brush guard . 23

Table 4 – Required performance levels . 11

+AMD2:2024 CSV © IEC 2024
Table 101 – Minimum flange dimensions (see Figure 105) . 14
Table 102 − Test torque for flanges . 15
Table 103 − Guard thickness for steel . 16
Table 104 − Guard thickness for aluminium . 16
Table 105 – Minimum tool spindle diameter . 17
Table I.101 – Operating conditions for bench grinders . 24

– 4 – IEC 62841-3-4:2016+AMD1:2019
+AMD2:2024 CSV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 3-4: Particular requirements for transportable bench grinders

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 wa
...