IEC 62841-2-23:2024

Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 2-23: Particular requirements for hand-held die grinders and small rotary tools

IEC 62841-2-23:2024 is to be used in conjunction with IEC 62841-1:2014. This document supplements or modifies the corresponding clauses in IEC 62841-1, so as to convert it into the IEC Standard: Particular requirements for hand-held die grinders and small rotary tools. IEC 62841-1:2014, Clause 1 is applicable, except as follows:
This document applies to hand-held die grinders and to small rotary tools for mounted accessories not exceeding 55 mm in diameter and for mounted sanding accessories not exceeding 80 mm in diameter such as:
- threaded cones and plugs that are threaded on a mandrel with an unrelieved shoulder flange,
- mandrel mounted wheels, and
- rotary files
with a rated speed not exceeding a peripheral speed of the accessory of 80 m/s at rated capacity.
This document does not apply to straight and vertical grinders utilizing flanges for driving an abrasive accessory.
NOTE 101 Straight and vertical grinders are covered by IEC 62841-2-3.

Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses - Sécurité - Partie 2-23: Exigences particulières pour les meules à rectifier les matrices portatives et les outils rotatifs de petite taille

IEC 62841-2-23:2024 doit être utilisé conjointement avec l'IEC 62841-1:2014. Le présent document complète ou modifie les articles correspondants de l'IEC 62841-1 de façon à la transformer en norme IEC: Exigences particulières pour les meules à rectifier les matrices portatives et les outils rotatifs de petite taille. Le présent document s'applique aux meules à rectifier les matrices portatives et aux outils rotatifs de petite taille destinés aux accessoires installés qui ne dépassent pas 55 mm de diamètre et aux accessoires de ponçage installés qui ne dépassent pas 80 mm de diamètre, tels que:
-les meules coniques et sur écrou filetées sur un mandrin avec un flasque à épaulement intégral,
-les meules montées sur mandrin, et
-les limes rotatives
dont la vitesse assignée ne dépasse pas une vitesse périphérique de l'accessoire de 80 m/s à la capacité assignée.
Le présent document ne s'applique pas aux meuleuses droites et verticales qui utilisent des flasques pour entraîner un accessoire abrasif.
NOTE 101 Les meuleuses droites et verticales sont couvertes par l'IEC 62841-2-3.

General Information

• Status: Published
• Publication Date: 20-Jun-2024
• ICS: 25.140.20 - Electric tools
• Technical Committee: TC 116 - Safety of motor-operated electric tools
• Drafting Committee: WG 8 - TC 116/WG 8
• Current Stage: PPUB - Publication issued
• Start Date: 12-Jul-2024
• Completion Date: 21-Jun-2024

Standards Content (Sample)

IEC 62841-2-23 ®
Edition 1.0 2024-06
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 62841-2-23:2024 includes the content of the references made to
IEC 62841-1:2014
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 2-23: Particular requirements for hand-held die grinders and small rotary
tools
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.: [phone]
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About the IEC
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IEC 62841-2-23 ®
Edition 1.0 2024-06
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 62841-2-23:2024 includes the content of the references made to
IEC 62841-1:2014
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 2-23: Particular requirements for hand-held die grinders and small rotary
tools
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.140.20 ISBN 978-2-8322-9277-8

– 2 – IEC 62841-2-23:2024 EXV © IEC 2024
CONTENTS
FOREWORD . 5
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 10
3 Terms and definitions . 15
4 General requirements . 22
5 General conditions for the tests . 22
6 Radiation, toxicity and similar hazards . 25
7 Classification . 26
8 Marking and instructions . 26
9 Protection against access to live parts . 42
10 Starting . 43
11 Input and current . 43
12 Heating . 44
13 Resistance to heat and fire . 48
14 Moisture resistance . 49
15 Resistance to rusting . 52
16 Overload protection of transformers and associated circuits . 53
17 Endurance . 53
18 Abnormal operation . 54
19 Mechanical hazards . 62
20 Mechanical strength . 65
21 Construction . 67
22 Internal wiring . 76
23 Components . 78
24 Supply connection and external flexible cords . 83
25 Terminals for external conductors . 89
26 Provision for earthing . 91
27 Screws and connections . 93
28 Creepage distances, clearances and distances through insulation . 96
Annex A (normative) Measurement of creepage distances and clearances . 103
Annex B (normative) Motors not isolated from the supply mains and having basic
insulation not designed for the rated voltage of the tool . 108
Annex C (normative) Leakage current . 110
Annex D (normative) Electric strength . 114
Annex E (informative) Methods of applying ISO 13849-1 to power tools . 116
Annex F (informative) Rules for routine tests . 118
Annex G Void . 120
Annex H (normative) Determination of a low-power circuit . 121
Annex I (informative) Measurement of noise and vibration emissions . 122
Annex J Void . 139
Annex K (normative) Battery tools and battery packs . 140

Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources. 160
Bibliography . 179

Figure 101 – Wheel overhang . 64
Figure 1 – Test fingernail . 100
Figure 2 – Flexing test apparatus . 101
Figure 3 – Overload test of a class II armature . 102
Figure A.1 – Clearance gap for parallel sided and V-shaped groove . 104
Figure A.2 – Clearance gap for rib and uncemented joint with groove . 105
Figure A.3 – Clearance gap for uncemented joint and diverging-sided groove . 106
Figure A.4 – Clearance gap between wall and screw . 107
Figure B.1 – Simulation of fault conditions . 109
Figure C.1 – Diagram for leakage current measurement for single-phase connection
and three-phase tools suitable for single-phase supply . 112
Figure C.2 – Diagram for leakage current measurement for three-phase connection . 113
Figure C.3 – Circuit of the leakage current meter . 113
Figure H.1 – Example of an electronic circuit with low-power points . 121
Figure I.101 – Positions of transducers for die grinders . 129
Figure I.102 – Positions of transducers for small rotary tools . 130
Figure I.103 – Artificial wheel . 134
Figure I.1 – Test bench . 136
Figure I.2 – Positions of a hand-held power tool and microphones for the

hemispherical / cylindrical measurement surface . 137
Figure I.3 – Microphone positions on a cubic measurement surface . 137
Figure I.4 – Directions of vibration measurement . 138
Figure K.1 – Measurement of clearances . 159
Figure L.1 – Measurement of clearances . 178

Table 1 – Maximum normal temperature rises (1 of 2) . 46
Table 2 – Maximum outside surface temperature rises . 48
Table 3 – Maximum winding temperature . 55
Table 4 – Required performance levels . 61
Table 5 – Impact energies. 65
Table 6 – Test torques . 66
Table 7 – Switch trigger force . 71
Table 8 – Minimum cross-sectional area and AWG sizes of supply cords . 84
Table 9 – Pull and torque value . 86
Table 10 – Quick-connect terminals for earthing conductors . 91
Table 11 – Torque for testing screws and nuts . 94
Table 12 – Minimum creepage distances and clearances . 97
Table D.1 – Test voltages . 114
Table F.1 – Test voltages for the electric strength test . 119
Table I.101 – Vibration test conditions . 133
Table I.102 – Dimensions of the artificial wheel of Figure I.103 . 133

– 4 – IEC 62841-2-23:2024 EXV © IEC 2024
Table K.1 – Minimum creepage distances and clearances between parts of opposite

polarity . 158
Table L.1 – Minimum creepage distances and clearances between parts of opposite
polarity . 177

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-23: Particular requirements for hand-held die
...

IEC 62841-2-23 ®
Edition 1.0 2024-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 2-23: Particular requirements for hand-held die grinders and small rotary
tools
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 2-23: Exigences particulières pour les meules à rectifier les matrices
portatives et les outils rotatifs de petite taille
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
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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 62841-2-23 ®
Edition 1.0 2024-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and

garden machinery – Safety –
Part 2-23: Particular requirements for hand-held die grinders and small rotary

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

pelouses – Sécurité –
Partie 2-23: Exigences particulières pour les meules à rectifier les matrices

portatives et les outils rotatifs de petite taille

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20  ISBN 978-2-8322-9102-3

– 2 – IEC 62841-2-23:2024 © 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 . 12
10 Starting . 12
11 Input and current . 13
12 Heating . 13
13 Resistance to heat and fire . 13
14 Moisture resistance . 13
15 Resistance to rusting . 13
16 Overload protection of transformers and associated circuits . 13
17 Endurance . 13
18 Abnormal operation . 14
19 Mechanical hazards . 14
20 Mechanical strength . 16
21 Construction . 16
22 Internal wiring . 17
23 Components . 17
24 Supply connection and external flexible 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 . 18
Annex K (normative) Battery tools and battery packs . 23
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources . 25
Bibliography . 26

Figure 101 – Wheel overhang . 15
Figure I.101 – Positions of transducers for die grinders. 20
Figure I.102 – Positions of transducers for small rotary tools . 20
Figure I.103 – Artificial wheel . 22

Table 4 – Required performance levels . 14
Table I.101 – Vibration test conditions . 21

Table I.102 – Dimensions of the artificial wheel of Figure I.103 . 21

– 4 – IEC 62841-2-23:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-23: Particular requirements for hand-held die grinders and
small rotary tools
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