IEC 62841-2-16:2024
(Main)Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 2-16: Particular requirements for hand-held fastener driving tools
Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 2-16: Particular requirements for hand-held fastener driving tools
IEC 62841-2-16:2024 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 fastener driving tools. Where a particular subclause of IEC 62841-1 is not mentioned in this document, that subclause applies as far as reasonable. Where this document states "addition", "modification" or "replacement", the relevant text in IEC 62841-1 is to be adapted accordingly.
IEC 62841-1:2014, Clause 1 is applicable, except as follows:
Addition: This document applies to hand-held fastener driving tools
- intended for driving fasteners into or through concrete, fabric, fiberboard, metal, plastic, wood, wood products, cartons, and other materials; and
- whose energy to drive the fastener is derived directly or indirectly from an electric motor or magnetic drive.
This document does not apply to pneumatically driven tools where the compressed gas comes from an external source, such as a compressor or a tank.
This document does not apply to tools powered by combustible gases, even if electrically ignited.
NOTE 101 Tools powered by compressed air or combustible gases are covered by ISO 11148-13:2017.
Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses - Sécurité - Partie 2-16: Exigences particulières pour les machines à enfoncer les fixations portatives
L'IEC 62841-2-16:2024 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 machines à enfoncer les fixations portatives. Lorsqu'un paragraphe particulier de l'IEC 62841-1 n'est pas mentionné dans le présent document, ce paragraphe s'applique pour autant que cela soit raisonnable. Lorsque le présent document mentionne "addition", "modification" ou "remplacement", le texte correspondant de l'IEC 62841-1 doit être adapté en conséquence.
L'Article 1 de l'IEC 62841-1:2014 s'applique, avec l'exception suivante:
Addition:
Le présent document s'applique aux machines à enfoncer les fixations portatives:
conçues pour enfoncer des fixations dans du béton, du tissu, des panneaux de fibres, du métal, du plastique, du bois, des produits en bois, du carton et d'autres matériaux; et
dont l'énergie utilisée pour enfoncer la fixation est produite directement ou indirectement par un moteur électrique ou un système d'entraînement magnétique.
Le présent document ne s'applique pas aux outils à entraînement pneumatique pour lesquels le gaz comprimé provient d'une source externe telle qu'un compresseur ou un réservoir.
Le présent document ne s'applique pas non plus aux outils qui fonctionnent aux gaz combustibles, même à allumage électrique.
General Information
Standards Content (Sample)
IEC 62841-2-16 ®
Edition 1.0 2024-06
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 62841-2-16:2024 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 2-16: Particular requirements for hand-held fastener driving tools
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IEC 62841-2-16 ®
Edition 1.0 2024-06
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 62841-2-16:2024 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 2-16: Particular requirements for hand-held fastener driving tools
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.140.20 ISBN 978-2-8322-9350-8
– 2 – IEC 62841-2-16:2024 EXV © IEC 2024
CONTENTS
FOREWORD . 5
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 10
3 Terms and definitions . 15
4 General requirements . 24
5 General conditions for the tests . 24
6 Radiation, toxicity and similar hazards . 27
7 Classification . 28
8 Marking and instructions . 28
9 Protection against access to live parts . 41
10 Starting . 42
11 Input and current . 43
12 Heating . 43
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 . 61
20 Mechanical strength . 65
21 Construction . 68
22 Internal wiring . 76
23 Components . 78
24 Supply connection and external flexible cords . 83
25 Terminals for external conductors . 88
26 Provision for earthing . 90
27 Screws and connections . 93
28 Creepage distances, clearances and distances through insulation . 95
Annex A (normative) Measurement of creepage distances and clearances. 104
Annex B (normative) Motors not isolated from the supply mains and having basic
insulation not designed for the rated voltage of the tool . 109
Annex C (normative) Leakage current . 111
Annex D (normative) Electric strength . 115
Annex E (informative) Methods of applying ISO 13849-1 to power tools . 117
Annex F (informative) Rules for routine tests . 119
Annex G Void. 121
Annex H (normative) Determination of a low-power circuit . 122
Annex I (informative) Measurement of noise and vibration emissions . 123
Annex J Void . 134
Annex K (normative) Battery tools and battery packs . 135
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources . 157
Bibliography . 176
Figure 1 – Test fingernail . 101
Figure 2 – Flexing test apparatus . 102
Figure 3 – Overload test of a class II armature . 103
Figure A.1 – Clearance gap for parallel sided and V-shaped groove . 105
Figure A.2 – Clearance gap for rib and uncemented joint with groove . 106
Figure A.3 – Clearance gap for uncemented joint and diverging-sided groove . 107
Figure A.4 – Clearance gap between wall and screw . 108
Figure B.1 – Simulation of fault conditions . 110
Figure C.1 – Diagram for leakage current measurement for single-phase connection
and three-phase tools suitable for single-phase supply . 113
Figure C.2 – Diagram for leakage current measurement for three-phase connection . 114
Figure C.3 – Circuit of the leakage current meter . 114
Figure H.1 – Example of an electronic circuit with low-power points . 122
Figure I.1 – Test bench . 132
Figure I.2 – Positions of a hand-held power tool and microphones for the
hemispherical / cylindrical measurement surface . 132
Figure I.3 – Microphone positions on a cubic measurement surface . 133
Figure I.4 – Directions of vibration measurement . 133
Figure K.1 – Measurement of clearances . 156
Figure L.1 – Measurement of clearances . 175
Table 1 – Maximum normal temperature rises (1 of 2) . 46
Table 2 – Maximum outside surface temperature rises . 48
Table 4 – Required performance levels . 60
Table 101 – Permitted actuation modes and workpiece contact force for fastener
driving tools that require a workpiece contact. 64
Table 5 – Impact energies . 66
Table 6 – Test torques . 67
Table 7 – Switch trigger force . 72
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 . 115
Table F.1 – Test voltages for the electric strength test . 120
Table I.101 – Detailed example of a concrete formulation . 125
Table K.1 – Minimum creepage distances and clearances between parts of different
potential . 154
Table K.2 – Minimum total sum of creepage distances and clearances to accessible
surfaces . 155
– 4 – IEC 62841-2-16:2024 EXV © IEC 2024
Table L.1 – Minimum creepage distances and clearances between parts of opposite
polarity . 174
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-16: Particular requirements for hand-held fastener driving tools
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
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s),
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https://patents.iec.ch. IEC shall not be held responsible for identifying any or all such patent rights.
This extended version (EXV) of the official IEC Standard provides the user with the
comprehensive content of the Standard.
made to IEC 62841-1:2014.
The specific content of IEC 62841-2-16:2024 is displayed on a blue background.
– 6 – IEC 62841-2-16:2024 EXV © IEC 2024
IEC 62841-2-16 has been prepared by IEC technical committee 116: Safety of motor-operated
electric tools. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
116/757/FDIS 116/800/RVD
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, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
available at www.iec.ch/members_experts/refdocs. The main document types developed by
IEC are described in greater detail at www.iec.ch/publications.
This document 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 fastener driving tools.
Where a particular subclause of IEC 62841-1 is not mentioned in this document, that
subclause applies as far as reasonable. Where this document states "addition", "modification"
or "replacement", the relevant text in IEC 62841-1 is to be adapted accordingly.
The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– terms defined in Clause 3: in bold type;
– notes: in small roman type.
Subclauses, notes, tables and figures which are additional to those in IEC 62841-1 are
numbered starting from 101.
Subclauses, notes, tables and figures in Annex K and Annex L which are additional to those in
the main body of this document are numbered starting from 301.
A list of all parts in the IEC 62841 series, published under the general title Electric motor-
operated hand-held tools, transportable tools and lawn and garden machinery – Safety, can
be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 8 – IEC 62841-2-16:2024 EXV © IEC 2024
INTRODUCTION
Individual countries may wish to consider the application of this Part 1 of IEC 62841, so far as
is reasonable, to tools not mentioned in an individual part of IEC 62841-2, IEC 62841-3 or
IEC 62841-4 and to tools designed on new principles.
Examples of standards dealing with non-safety aspects of hand-held tools, transportable
tools and lawn and garden machinery are
– standards dealing with EMC aspects;
– standards dealing with environmental aspects.
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-16: Particular requirements for hand-held fastener driving tools
1 Scope
This International Standard deals with the safety of electric motor-operated or magnetically
driven:
– hand-held tools (IEC 62841-2);
– transportable tools (IEC 62841-3);
– lawn and garden machinery (IEC 62841-4).
The above listed categories are hereinafter referred to as “tools” or “machines”.
The rated voltage is not more than 250 V for single-phase a.c. or d.c. tools, and 480 V for
three-phase a.c. tools. The rated input is not more than 3 700 W.
The limits for the applicability of this standard for battery tools are given in K.1 and L.1.
This standard deals with the hazards presented by tools which are encountered by all persons
in the normal use and reasonably foreseeable misuse of the tools.
Tools with electric heating elements are within the scope of this standard.
Requirements for motors not isolated from the supply, and having basic insulation not
designed for the rated voltage of the tools, are given in Annex B. Requirements for
rechargeable battery-powered motor-operated or magnetically driven tools and the battery
packs for such tools are given in Annex K. Requirements for such tools that are also operated
and/or charged directly from the mains or a non-isolated source are given in Annex L.
Hand-held electric tools, which can be mounted on a support or working stand for use as fixed
tools without any alteration of the tool itself, are within the scope of this standard and such
combination of a hand-held tool and a support is considered to be a transportable tool and
thus covered by the relevant Part 3.
This document applies to hand-held fastener driving tools
– intended for driving fasteners into or through concrete, fabric, fiberboard, metal, plastic,
wood, wood products, cartons, and other materials; and
– whose energy to drive the fastener is derived directly or indirectly from an electric motor
or magnetic drive.
This document does not apply to pneumatically driven tools where the compressed gas comes
from an external source, such as a compressor or a tank.
This document does not apply to tools powered by combustible gases, even if electrically
ignited.
NOTE 101 Tools powered by compressed air or combustible gases are covered by ISO 11148-13:2017.
This standard does not apply to:
– 10 – IEC 62841-2-16:2024 EXV © IEC 2024
– tools intended to be used in the presence of explosive atmosphere (dust, vapour or gas);
– tools used for preparing and processing food;
– tools for medical purposes;
NOTE 1 IEC 60601 series covers a variety of tools for medical purposes.
– tools intended to be used with cosmetics or pharmaceutical products;
– heating tools;
NOTE 2 IEC 60335-2-45 covers a variety of heating tools.
– electric motor-operated household and similar electrical appliances;
NOTE 3 IEC 60335 series covers a variety of electric motor-operated household and similar electrical appliances.
– electrical equipment for industrial machine-tools;
NOTE 4 IEC 60204 series deals with electrical safety of machinery.
– small low voltage transformer operated bench tools intended for model making, e.g. the
making of radio controlled model aircraft or cars, etc.
NOTE 5 In the United States of America, the following conditions apply:
This standard deals with tools used in non-hazardous locations in accordance with the National Electrical Code,
NFPA 70.
NOTE 6 In Canada, the following conditions apply:
This standard deals with tools used in non-hazardous locations in accordance with the Canadian Electric Code,
Part 1, CSA C22.1, and General Requirements – Canadian Electrical Code, Part II, CAN/CSA-C22.2 No. 0.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60061, Lamp caps and holders together with gauges for the control of interchangeability
and safety, available at http://std.iec.ch/iec60061
IEC 60065:2001, Audio, video and similar electronic apparatus – Safety requirements
Amendment 2:2010
Amendment 1:2005
IEC 60068-2-75:1997, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC/TR 60083, Plugs and socket-outlets for domestic and similar general use standardized in
member countries of IEC
IEC 60085:2007, Electrical insulation – Thermal evaluation and designation
IEC 60127 (all parts), Miniature fuses
IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V
IEC 60238, Edison screw lampholders
_________
There exists a consolidated version (Edition 7.2:2011) which includes IEC 60065:2001 and its Amendment 1
(2005) and Amendment 2 (2010).
IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including
450/750 V
IEC 60252-1, AC motor capacitors – Part 1: General – Performance, testing and rating –
Safety requirements – Guidance for installation and operation
IEC 60320 (all parts), Appliance couplers for household and similar general purposes
IEC 60320-1, Appliance couplers for household and similar general purposes – Part 1:
General requirements
IEC 60335-1:2010, Household and similar electrical appliances – Safety – Part 1: General
requirements
IEC 60384-14, Fixed capacitors for use in electronic equipment – Part 14: Sectional
specification – Fixed capacitors for electromagnetic interference suppression and connection
to the supply mains
IEC 60417, Graphical symbols for use on equipment, available at http://www.graphical-
symbols.info/graphical-symbols/equipment/db1.nsf/$enHome?OpenForm
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
Amendment 1:1999
Amendment 2:2013
IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 60664-3, Insulation coordination for equipment within low-voltage systems – Part 3: Use
of coating, potting or moulding for protection against pollution
IEC 60664-4:2005, Insulation coordination for equipment within low-voltage systems – Part 4:
Consideration of high-frequency voltage stress
IEC 60695-2-11:2000, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products
IEC 60695-2-13:2010, Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods –
Glow-wire ignition temperature (GWIT) test method for materials
IEC 60695-10-2:2003, Fire hazard testing – Part 10-2: Abnormal heat – Ball pressure test
IEC 60695-11-10:2013, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and
vertical flame test methods
IEC 60730-1:2010, Automatic electrical controls for household and similar use – Part 1:
General requirements
IEC 60825-1:2007, Safety of laser products – Part 1: Equipment classification and
requirements
IEC 60884 (all parts), Plugs and socket-outlets for household and similar purposes
_________
There exists a consolidated version (Edition 2.2:2013) which includes IEC 60529:1989 and its Amendment 1
(1999) and Amendment 2 (2013).
– 12 – IEC 62841-2-16:2024 EXV © IEC 2024
IEC 60906-1, IEC system of plugs and socket-outlets for household and similar purposes –
Part 1: Plugs and socket-outlets 16 A 250 V a.c.
IEC 60990:1999, Methods of measurement of touch current and protective conductor current
IEC 60998-2-1, Connecting devices for low-voltage circuits for household and similar
purposes – Part 2-1: Particular requirements for connecting devices as separate entities with
screw-type clamping units
IEC 60998-2-2, Connecting devices for low-voltage circuits for household and similar
purposes – Part 2-2: Particular requirements for connecting devices as separate entities with
screwless-type clamping units
IEC 60999-1:1999, Connecting devices – Electrical copper conductors – Safety requirements
for screw-type and screwless-type clamping units – Part 1: General requirements and
2 2
up to 35 mm
particular requirements for clamping units for conductors from 0,2 mm
(included)
IEC 61000-4-2:2008, Electromagnetic compatibility (EMC) – Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
IEC 61000-4-3:2006, Electromagnetic compatibility (EMC) – Part 4-3: Testing and
measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test
Amendment 1:2007
Amendment 2:2010
IEC 61000-4-4:2012, Electromagnetic compatibility (EMC) – Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5:2005, Electromagnetic compatibility (EMC) – Part 4-5: Testing and
measurement techniques – Surge immunity test
IEC 61000-4-6:2008, Electromagnetic compatibility (EMC) – Part 4-6: Testing and
measurement techniques – Immunity to conducted disturbances, induced by radio-frequency
fields
IEC 61000-4-11:2004, Electromagnetic compatibility (EMC) – Part 4-11: Testing and
measurement techniques – Voltage dips, short interruptions and voltage variations immunity
tests
IEC 61032:1997, Protection of persons and equipment by enclosures – Probes for verification
IEC 61056-1, General purpose lead-acid batteries (valve-regulated types) – Part 1: General
requirements, functional characteristics – Methods of test
IEC 61058-1:2000, Switches for appliances – Part 1: General requirements
Amendment 1:2001
Amendment 2:2007
IEC 61210, Connecting devices – Flat quick-connect terminations for electrical copper
conductors – Safety requirements
_________
There exists a consolidated version (Edition 3.2:2010) which includes IEC 61000-4-3:2006 and its Amendment
1 (2007) and Amendment 2 (2010).
There exists a consolidated version (Edition 3.2:2008) which includes IEC 61058-1:2000 and its Amendment 1
(2001) and Amendment 2 (2007).
IEC 61540:1997, Electrical accessories – Portable residual current devices without integral
overcurrent protection for household and similar use (PRCDs)
Amendment 1:1998
IEC 61558-1, Safety of power transformers, power supplies, reactors and similar products –
Part 1: General requirements and tests
IEC 61558-2-4, Safety of transformers, reactors, power supply units and similar products for
supply voltages up to 1 100 V – Part 2-4: Particular requirements and tests for isolating
transformers and power supply units incorporating isolating transformers
IEC 61558-2-6, Safety of transformers, reactors, power supply units and similar products for
supply voltages up to 1 100 V – Part 2-6: Particular requirements and tests for safety isolating
transformers and power supply units incorporating safety isolating transformers
IEC 61558-2-16, Safety of transformers, reactors, power supply units and similar products for
supply voltages up to 1 100 V – Part 2-16: Particular requirements and tests for switch mode
power supply units and transformers for switch mode power supply units
IEC 61951-1, Secondary cells and batteries containing alkaline or other non-acid electrolytes
– Portable sealed rechargeable single cells – Part 1: Nickel-cadmium
IEC 61951-2, Secondary cells and batteries containing alkaline or other non-acid electrolytes
– Portable sealed rechargeable single cells – Part 2: Nickel-metal hydride
IEC 61960, Secondary cells and batteries containing alkaline or other non-acid electrolytes –
Secondary lithium cells and batteries for portable applications
IEC 61984, Connectors – Safety requirements and tests
IEC 62133, Secondary cells and batteries containing alkaline or other non-acid electrolytes –
Safety requirements for portable sealed secondary cells, and for batteries made from them,
for use in portable applications
IEC 62233, Measurement methods for electromagnetic fields of household appliances and
similar apparatus with regard to human exposure
IEC 62471, Photobiological safety of lamps and lamp systems
IEC/TR 62471-2:2009, Photobiological safety of lamps and lamp systems – Part 2: Guidance
on manufacturing requirements relating to non-laser optical radiation safety
IEC 62841-1:2014, Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety – Part 1: General requirements
ISO 630-2:2021, Structural steels – Part 2: Technical delivery conditions for structural steels
for general purposes
ISO 1463, Metallic and oxide coatings – Measurement of coating thickness – Microscopical
method
ISO 2178, Non-magnetic coatings on magnetic substrates – Measurement of coating
thickness – Magnetic method
_________
There exists a consolidated version (Edition 1.1:1999) which includes IEC 61540:1997 and its Amendment 1
(2001).
– 14 – IEC 62841-2-16:2024 EXV © IEC 2024
ISO 2768-1, General tolerances – Part 1: Tolerances for linear and angular dimensions
without individual tolerance indications
ISO 3744, Acoustics – Determination of sound power levels and sound energy levels of noise
sources using sound pressure – Engineering methods for an essentially free field over a
reflecting plane
ISO 3864-2, Graphical symbols – Safety colours and safety signs – Part 2: Design principles
for product safety labels
ISO 3864-3, Graphical symbols – Safety colours and safety signs – Part 3: Design principles
for graphical symbols for use in safety signs
ISO 4871:1996, Acoustics – Declaration and verification of noise emission values of
machinery and equipment
ISO 5347 (all parts), Methods for the calibration of vibration and shock pick-ups
ISO 5349-1, Mechanical vibration – Measurement and evaluation of human exposure to hand-
transmitted vibration – Part 1: General requirements
ISO 5349-2, Mechanical vibration – Measurement and evaluation of human exposure to hand-
transmitted vibration – Part 2: Practical guidance for measurement in the workplace
ISO 7000:2012, Graphical symbols for use on equipment – Index and synopsis
ISO 7010, Graphical symbols – Safety colours and safety signs – Registered safety signs
ISO 7574-4, Acoustics – Statistical methods for determining and verifying stated noise
emission values of machinery and equipment – Part 4: Methods for stated values for batches
of machines
ISO 8041, Human response to vibration – Measuring instrumentation
ISO 9772:2012, Cellular plastics – Determination of horizontal burning characteristics of small
specimens subjected to a small flame
ISO 11201, Acoustics – Noise emitted by machinery and equipment – Determination of
emission sound pressure levels at a work station and at other specified positions in an
essentially free field over a reflecting plane with negligible environmental corrections
ISO 11203, Acoustics – Noise emitted by machinery and equipment – Determination of
emission sound pressure levels at a work station and at other specified positions from the
sound power level
ISO 12100, Safety of machinery – General principles for design – Risk assessment and risk
reduction
ISO 13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General
principles for design
ISO 13850, Safety of machinery – Emergency stop – Principles for design
ISO/TR 11690-3, Acoustics – Recommended practice for the design of low-noise workplaces
containing machinery – Part 3: Sound propagation and noise prediction in workrooms
ISO 16063-1, Methods for the calibration of vibration and shock transducers – Part 1: Basic
concepts
ISO 28927-13:2022, Hand-held portable power tools – Test methods for evaluation of
vibration emission – Part 13: Fastener driving tools
EN 12096, Mechanical vibration – Declaration and verification of vibration emission values
EN 12549:1999, Acoustics – Noise test code for fastener driving tools – Engineering method
EN 15895:2011, Cartridge operated hand-held tools – Safety requirements – Fixing and hard
marking tools
ASTM B 258, Standard specification for standard nominal diameters and cross-sectional
areas of AWG sizes of solid round wires used as electrical conductors
UL 969, Standard for marking and labeling systems
NOTE 1 In the United States of America, the following normative reference applies:
US, Code of Federal Regulations (CFR) Title 21, Food and Drugs.
NOTE 2 In Canada, the following normative reference applies:
C.R.C., c. 1370, Radiation Emitting Devices Regulations
NOTE 3 In Europe (EN 62841-1), the following normative references apply:
CR 1030-1, Hand-arm vibration – Guidelines for vibration hazards reduction – Part 1: Engineering methods by
design of machinery
EN ISO 11688-1, Acoustics – Recommended practice for the design of low-noise machinery and equipment –
Part 1: Planning (ISO/TR 11688-1)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
Where the terms voltage and current are used, they imply the r.m.s. values, unless otherwise
specified.
Where in this standard the expressions “with the aid of a tool”, “without the aid of a tool”, and
“requires the use of a tool”, are used, the word “tool” means a hand tool, for example a
screwdriver, which may be used to operate a screw or other fixing means.
3.1
accessible part
conductive part or surface of insulating materials that can be touched by means of the test
probe B of IEC 61032:1997
3.2
accessory
device that is attached only to the output mechanism of the tool
3.3
adjustable guard
guard which is adjustable as a whole or which incorporates adjustable part(s). For manually
adjustable guards, the adjustment remains fixed during a particular operation
– 16 – IEC 62841-2-16:2024 EXV © IEC 2024
3.4
all-pole disconnection
disconnection of all supply conductors except the protective earthing (grounding) conductor
by a single initiating action
3.5
attachment
device attached to the housing or other component of the tool and which may or may not be
attached to the output mechanism and does not modify the normal use of the tool within the
scope of this standard
3.6
basic insulation
insulation applied to live parts to provide protection against electric shock. Insulation applied
to live parts not intended to provide electric shock protection is considered to be insulation
for functional purposes, such as magnet wire insulation
3.7
battery
assembly of one or more cells intended to provide electrical current to the tool
3.8
class I tool
tool in which protection against electric shock does not rely on basic, double or reinforced
insulation only, but which includes an additional safety precaution in that conductive
accessible parts are connected to the protective earthing conductor in the fixed wiring of the
installation in such a way that conductive accessible parts cannot become live in the event of
a failure of the basic insulation
Note 1 to entry: Also considered as class I tools are tools with double insulation and/or reinforced insulation
throughout, but also having an earthing terminal or earthing contact.
3.9
class II tool
tool in which protection against electric shock does not rely on basic insulation only, but in
which additional safety precautions, such as double insulation or reinforced insulation, are
provided, there being no provision for protective earthing or reliance upon installation
conditions
3.10
class III tool
tool in which protection against electric shock relies on supply at safety extra-low voltage,
and in which voltages higher than those of safety extra-low voltages are not generated
3.11
class II construction
part of a tool for which protection against electric shock relies upon double insulation or
reinforced insulation
3.12
class III construction
part of a tool for which protection against electric shock relies upon safety extra-low voltage,
and in which voltages higher than those of safety extra-low voltages are not generated
3.13
clearance
shortest distance between two conductive parts, or between a conductive part and the outer
surface of the enclosure, considered as though metal foil were pressed into contact with
accessible surfaces of insulating material, measured through air
Note 102 to entry: Examples of clearances are given in Annex A.
3.14
control device
device used by the user to adjust and/or regulate an electrical or mechanical function of the
tool
3.15
creepage distance
shortest path between two conductive parts, or between a conductive part and the outer
surface of the enclosure, considered as though metal foil were pressed into contact with
accessible surfaces of insulating material, measured along the surface of the insulating
material
Note 1 to entry: Examples of creepage distances are given in Annex A.
3.16
detachable part
part which can be removed or opened without the aid of a tool, or a part which is removed in
accordance with the instruction for use, except externally accessible brush caps, even if
removal requires the use of a tool
Note 1 to entry: A non-detachable part is covered by the requirements of 21.22.
3.17
double insulation
insulation system comprising both basic insulation and supplementary insulation
3.18
electronic circuit
circuit incorporating at least one electronic component
3.19
electronic component
part in which conduction is achieved principally by electrons moving through a vacuum, gas or
semiconductor, with the exclusion of neon indicators
Note 1 to entry: Examples of electronic components are diodes, transistors, triacs and monolithic integrated
circuits. Resistors, capacitors and inductors are not considered electronic components.
3.20
explosion
failure that occurs, when an enclosure opens violently and major components are forcibly
expelled in a manner that could result in injury
3.21
extra-low voltage
voltage supplied from a source within the tool and, which, when the tool is supplied at rated
voltage, does not exceed 50 V between conductors and between conductors and earth
3.22
fixed guard
guard af
...
IEC 62841-2-16 ®
Edition 1.0 2024-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 2-16: Particular requirements for hand-held fastener driving tools
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 2-16: Exigences particulières pour les machines à enfoncer les fixations
portatives
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IEC 62841-2-16 ®
Edition 1.0 2024-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 2-16: Particular requirements for hand-held fastener driving tools
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 2-16: Exigences particulières pour les machines à enfoncer les fixations
portatives
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-9186-3
– 2 – IEC 62841-2-16:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 General requirements . 9
5 General conditions for the tests . 9
6 Radiation, toxicity and similar hazards . 10
7 Classification . 10
8 Marking and instructions . 10
9 Protection against access to live parts . 12
10 Starting . 12
11 Input and current . 12
12 Heating . 12
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 . 15
20 Mechanical strength . 18
21 Construction . 18
22 Internal wiring . 19
23 Components . 19
24 Supply connection and external flexible cords . 19
25 Terminals for external conductors . 19
26 Provision for earthing . 20
27 Screws and connections . 20
28 Creepage distances, clearances and distances through insulation . 20
Annexes . 26
Annex I (informative) Measurement of noise and vibration emissions . 26
Annex K (normative) Battery tools and battery packs . 29
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources . 35
Bibliography . 36
Table 4 – Required performance levels . 15
Table 101 – Permitted actuation modes and workpiece contact force for fastener
driving tools that require a workpiece contact . 16
Table 12 – Minimum creepage distances and clearances . 22
Table I.101 – Detailed example of a concrete formulation . 27
Table K.1 – Minimum creepage distances and clearances between parts of different
potential . 32
Table K.2 – Minimum total sum of creepage distances and clearances to accessible
surfaces . 33
– 4 – IEC 62841-2-16:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-16: Particular requirements for hand-held fastener driving tools
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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in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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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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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.
IEC 62841-2-16 has been prepared by IEC technical committee 116: Safety of motor-operated
electric tools. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
116/757/FDIS 116/800/RVD
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, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
This document 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 fastener driving tools.
Where a particular subclause of IEC 62841-1 is not mentioned in this document, that subclause
applies as far as reasonable. Where this document states "addition", "modification" or
"replacement", the relevant text in IEC 62841-1 is to be adapted accordingly.
The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– terms defined in Clause 3: in bold type;
– notes: in small roman type.
Subclauses, notes, tables and figures which are additional to those in IEC 62841-1 are
numbered starting from 101.
Subclauses, notes, tables and figures in Annex K and Annex L which are additional to those in
the main body of this document are numbered starting from 301.
A list of all parts in the IEC 62841 series, published under the general title Electric motor-
operated hand-held tools, transportable tools and lawn and garden machinery – Safety, can be
found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
– 6 – IEC 62841-2-16:2024 © IEC 2024
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-16: Particular requirements for hand-held fastener driving tools
1 Scope
IEC 62841-1:2014, Clause 1 is applicable, except as follows:
Addition:
This document applies to hand-held fastener driving tools
– intended for driving fasteners into or through concrete, fabric, fiberboard, metal, plastic,
wood, wood products, cartons, and other materials; and
– whose energy to drive the fastener is derived directly or indirectly from an electric motor or
magnetic drive.
This document does not apply to pneumatically driven tools where the compressed gas comes
from an external source, such as a compressor or a tank.
This document does not apply to tools powered by combustible gases, even if electrically
ignited.
NOTE 101 Tools powered by compressed air or combustible gases are covered by ISO 11148-13:2017.
2 Normative references
IEC 62841-1:2014, Clause 2 is applicable, except as follows:
Addition:
IEC 60664-3, Insulation coordination for equipment within low-voltage systems – Part 3: Use of
coating, potting or moulding for protection against pollution
IEC 60664-4:2005, Insulation coordination for equipment within low-voltage systems – Part 4:
Consideration of high-frequency voltage stress
IEC 62841-1:2014, Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety – Part 1: General requirements
ISO 630-2:2021, Structural steels – Part 2: Technical delivery conditions for structural steels
for general purposes
ISO 28927-13:2022, Hand-held portable power tools – Test methods for evaluation of vibration
emission – Part 13: Fastener driving tools
EN 12549:1999, Acoustics – Noise test code for fastener driving tools – Engineering method
EN 15895:2011, Cartridge operated hand-held tools – Safety requirements – Fixing and hard
marking tools
3 Terms and definitions
IEC 62841-1:2014, Clause 3 is applicable, except as follows:
Addition:
3.101
activate
move or otherwise engage a trigger or workpiece contact so that it is in a state that allows
the fastener driving tool to be actuated or that satisfies one requirement for the fastener
driving tool to be actuated
3.102
actuate
cause movement of the tool component(s) intended to drive a fastener
3.103
actuation mode
sequence by which a fastening operation is performed
3.103.1
contact actuation
actuation mode which allows the tool to operate by activating the workpiece contact whilst
the trigger is continually depressed and held
Note 101 to entry: Contact actuation is also known as bump mode.
3.103.2
contact actuation with automatic reversion
actuation mode that is capable of contact actuation and where the tool cannot actuate if the
trigger is depressed without operation of the workpiece contact within the trigger time-out
period
Note 101 to entry: Additional actuation is possible only after the trigger is released and re-activated.
3.103.3
dual activation
actuation mode where two devices, such as triggers, levers, or switches, work in conjunction
with each other such that two sequential dissimilar actions are required to actuate the tool
3.103.4
full sequential actuation
actuation mode which allows single driving operations via the trigger after the workpiece
contact has been activated and during which additional actuation can occur only when all
operating controls are released and re-activated in the same sequence
3.103.5
single sequential actuation
actuation mode which allows single driving operations via the trigger, after the workpiece
contact has been activated, and during which additional actuation can occur only when the
trigger has been returned to the non-driving position whilst the workpiece contact remains in
the activated position
3.104
actuation system
trigger or workpiece contact activated separately or in some combination or sequence to
actuate the tool
– 8 – IEC 62841-2-16:2024 © IEC 2024
3.105
coil nailer
fastener driving tool that drives fasteners from a collated coil of nails
Note 101 to entry: Roofing nailers are an example of a coil nailer.
3.106
fastener
mechanical device used for securing fixings to surfaces or joining materials together, such as
nails, staples and pins, for use in fastener driving tools
3.107
fastener driving tool
hand-held tool in which energy is transmitted in a linear motion to a fastener for the purpose
of driving the fastener into defined materials
Note 101 to entry: Fasteners are typically driven by mechanical or pneumatic means.
3.108
heavy duty brad nailer
fastener driving tool capable of driving nails of 1,2 mm (18 gauge) or larger nominal diameter
wire
3.109
heavy duty stapler
fastener driving tool capable of driving staples with a staple leg width of 1,6 mm or larger
and a nominal staple leg thickness of 1,4 mm or larger
3.110
horizontal-down
tool orientation where the tool nose is normal to a horizontal work surface and pointed
downwards
3.111
horizontal-up
tool orientation where the tool nose is normal to a horizontal work surface and pointed upwards
3.112
light duty tool
fastener driving tool that is only capable of driving fasteners where
– the mass of the fastener is less than 0,5 g and the length of the fastener does not exceed
26 mm; or
– the mass of the fastener is less than 0,4 g and the length of the fastener does not exceed
36 mm
Note 101 to entry: Heavy duty brad nailers, heavy duty staplers and pinners are considered not to be light duty
tools.
3.113
multi-blow tool
fastener driving tool that drives fasteners through multiple impacts on the head of the
fastener and not through the forcible ejection of the fastener
Note 101 to entry: An example of a multi-blow tool, also known as a percussion nailer, is a palm nailer.
3.114
pinner
fastener driving tool capable of driving headless fasteners up to 51 mm in length and a
maximum diameter of 0,64 mm (23 gauge)
3.115
staple leg thickness
maximum dimension of staple leg cross-section measured parallel to the staple crown axis
3.116
staple leg width
maximum dimension of staple leg cross-section measured perpendicular to the staple crown
axis
3.117
trigger
control element activated manually by a tool operator
3.118
trigger time-out period
for tools with contact actuation with automatic reversion actuation mode, the duration of
time a trigger can be depressed without operation of the workpiece contact before the tool
becomes inoperable
3.119
workpiece contact
control element or assembly on the fastener driving tool intended to be activated by the
workpiece
Note 101 to entry: This includes retractable workpiece contacts that are normally retracted and extend when the
trigger is activated.
3.119.1
protected workpiece contact
workpiece contact that is recessed such that it cannot be activated by pressing against a flat
surface
Note 101 to entry: Protected workpiece contacts are found on tools that are designed to affix cable, tubing and
the like with staples where the workpiece contact presses against the material being affixed.
4 General requirements
IEC 62841-1:2014, Clause 4 is applicable.
5 General conditions for the tests
IEC 62841-1:2014, Clause 5 is applicable, except as follows:
5.17 Addition:
The mass of the tool includes the heaviest fastener magazine in accordance with
8.14.2 b) 102), but excludes any fasteners.
5.101 For tests that are conducted without fasteners, the test may be conducted using a test
fixture that simulates a fastener in order to avoid abnormal stresses that may occur in the tool.
5.102 For tools that employ a function that does not permit the tool to actuate without
fasteners, tests that require the tool to actuate shall be conducted with fasteners or the
function shall be disabled. If required, special hardware or software (or both) may be used in
order to disable the function.
– 10 – IEC 62841-2-16:2024 © IEC 2024
6 Radiation, toxicity and similar hazards
IEC 62841-1:2014, Clause 6 is applicable.
7 Classification
IEC 62841-1:2014, Clause 7 is applicable.
8 Marking and instructions
IEC 62841-1:2014, Clause 8 is applicable, except as follows:
8.1 Replacement of the third dash:
– rated input, in watts or rated current, in amperes;
8.2 Addition:
Fastener driving tools shall be marked with safety information which shall be written in one of
the official languages of the country in which the machine is to be sold or marked with the
appropriate symbol:
– "Wear eye protection" or symbol M004 of ISO 7010;
– "Wear ear protection", or symbol M003 of ISO 7010. This marking may be omitted if the
measured sound pressure level at the operator's ear in accordance with Annex I does not
exceed 85 dB(A).
A combination of product safety labels, such as eye, ear, dust and head protection, is allowed.
8.11 Addition:
For tools with the ability to select different actuation modes, markings indicating which
actuation mode is enabled.
8.14.1 Addition:
The additional safety instructions as specified in 8.14.1.101 or 8.14.1.102 (as applicable) shall
be given. The term "tool" in these warnings may be replaced by a specific tool designation, such
as fastener driving tool, nailer, pinner, stapler, tacker, etc. This part may be printed
separately from the "General Power Tool Safety Warnings".
8.14.1.101 Fastener driving tool safety warnings (except for multi-blow tools)
a) Always assume that the tool contains fasteners. Careless handling of the tool may result
in unexpected firing of fasteners and personal injury.
b) Disconnect the tool from the power source when loading and unloading fasteners,
making adjustments or changing accessories. The tool may be accidentally activated if
it is connected to the power source, which may result in personal injury.
c) Be careful when handling fasteners, especially when loading and unloading. The
fasteners have sharp points which may result in personal injury.
d) Do not point the tool towards yourself or anyone nearby. Unexpected triggering will
discharge a fastener, which may result in personal injury.
e) Keep fingers away from the trigger when not operating the tool and when moving from
one operating position to another. Unexpected triggering will discharge a fastener, which
may result in personal injury.
f) Hold the tool by insulated gripping surfaces, when performing an operation where the
fastener may contact hidden wiring or its own cord. A fastener contacting a "live" wire
may make exposed metal parts of the tool "live" and could give the operator an electric
shock.
g) Hold the tool with a firm grasp during operation. Uncontrolled recoil of the tool may result
in unintended activation, which may result in personal injury.
h) Keep all body parts such as hands and legs, etc. away from the firing direction of the
tool. The fastener may penetrate the workpiece as well as any object behind it, which may
result in personal injury.
i) When using the tool, keep all body parts such as hands and legs, etc. away from the
area where the fastener is driven into the workpiece. The fastener could deflect and exit
the workpiece, which may result in personal injury.
j) Do not actuate the tool unless the tool is placed firmly against the workpiece. If the
tool is not in contact with the workpiece, the fastener may be deflected away from the
workpiece, which may result in personal injury.
k) When fastening electrical cables, make sure the cables are not energized. Hold the
tool only by insulated gripping surfaces. Use only fasteners designed for electrical
cable installations. Inspect that the fastener has not damaged the insulation of the
electrical cables. A fastener that damages the insulation of electric cables can lead to
electric shock and fire hazards.
NOTE 101 The warning in item k) above is omitted for tools that are not intended to fasten electrical cables.
l) Do not use this tool for fastening electrical cables. It is not designed for electric cable
installation and may damage the insulation of electric cables, thereby causing electric shock
or fire hazards.
NOTE 102 The warning in item l) above is omitted for tools intended to fasten electric cables in accordance
with 8.14.2 b) 106).
m) Disconnect the tool from the power source if a fastener jams in the tool. While removing
a jammed fastener, the tool may be accidentally activated if it is connected to the power
source, which may result in personal injury.
n) Use caution while removing a jammed fastener. The mechanism may be under
compression and the fastener may be forcefully discharged, which may result in personal
injury.
NOTE 103 The warning in item n) above is omitted for tools that do not utilize a stored potential energy to drive
the fasteners.
8.14.1.102 Multi-blow tool safety warnings
a) Hold the tool by insulated gripping surfaces, when performing an operation where the
fastener may contact hidden wiring or its own cord. A fastener contacting a "live" wire
may make exposed metal parts of the tool "live" and could give the operator an electric
shock.
b) Keep all body parts such as hands and legs, etc. away from the driving direction of
the fastener. The fastener may penetrate the workpiece as well as any object behind it,
which may result in personal injury.
c) When fastening electrical cables, make sure the cables are not energized. Hold the
tool only by insulated gripping surfaces. Use only fasteners designed for electrical
cable installations. Inspect that the fastener has not damaged the insulation of the
electrical cables. A fastener that damages the insulation of electric cables can lead to
electric shock and fire hazards.
NOTE 101 The warning in item c) above is omitted for tools that are not intended to fasten electrical cables.
d) Do not use this tool for fastening electrical cables. It is not designed for electric cable
installation and may damage the insulation of electric cables, thereby causing electric shock
or fire hazards.
NOTE 102 The warning in item d) above is omitted for tools intended to fasten electric cables in accordance
with 8.14.2 b) 106).
– 12 – IEC 62841-2-16:2024 © IEC 2024
8.14.2 b) Addition:
101) Information on suitable fasteners to be used with the tool;
102) Information on suitable accessories to be used with the tool, such as fastener
magazines or workpiece contact tip protectors;
103) Information on the correct operation of all control elements of the tool (e.g. trigger,
workpiece contact, actuation mode selector);
104) Information stating what materials the tool is designed to drive fasteners into;
105) Information indicating if the tool is intended to be used on hard materials such as steel
and concrete, including information regarding the additional downforce required to
operate the tool;
106) Information that the tool is intended to fasten electrical cables, if applicable;
107) Information on the fasteners to be used for fixing electric cables, if applicable;
108) Instructions for removing a jammed fastener in the tool;
109) Information on actuation modes of the tool;
110) Information on the method to change the fastener magazine, if any.
9 Protection against access to live parts
IEC 62841-1:2014, Clause 9 is applicable.
10 Starting
IEC 62841-1:2014, Clause 10 is applicable.
11 Input and current
IEC 62841-1:2014, Clause 11 is applicable.
12 Heating
IEC 62841-1:2014, Clause 12 is applicable, except as follows:
12.2 Replacement:
For tools with one or more rated voltages: The tool is operated at each rated voltage, under
the load conditions specified in 12.2.1. The voltage is then adjusted to 0,94 times the rated
voltage and 1,06 times the rated voltage.
The temperatures are measured at the most unfavourable of the two voltage settings. The
temperatures that are measured by means of thermocouples are taken while the tool is
operating.
For tools with a rated voltage range: The tool is operated
– at the lower limit of the rated voltage range, under the load conditions specified in 12.2.1.
The voltage is then adjusted to 0,94 times the lower limit of the rated voltage range; and
– at the upper limit of the rated voltage range, under the load conditions specified in 12.2.1.
The voltage is then adjusted to 1,06 times the upper limit of the rated voltage range.
The temperatures are measured at the most unfavourable of the two voltage settings. The
temperatures that are measured by means of thermocouples are taken while the tool is
operating.
12.2.1 Replacement:
The test is conducted with or without fasteners in the tool.
NOTE 101 See 5.101 for tests that are conducted without fasteners.
For tools other than multi-blow tools, the tool is operated for 10 cycles or until thermal
equilibrium is reached, whichever is achieved first. Each cycle consists of the tool operating at
– a rate of one actuation approximately every 1 s; or
– for tools with an inherent operating cycle greater than 1 s, operation with consecutive
operating cycles
for 1 min and a rest period of 3 min with the tool switched off. The temperature rises are
measured at the end of the "on" period. At the manufacturer's option, the tool may be operated
without a rest period until thermal equilibrium is reached.
For multi-blow tools, the tool is operated continuously at a minimum load to activate the
percussion mechanism for 10 min or until thermal equilibrium is reached, whichever is achieved
first.
13 Resistance to heat and fire
IEC 62841-1:2014, Clause 13 is applicable.
14 Moisture resistance
IEC 62841-1:2014, Clause 14 is applicable.
15 Resistance to rusting
IEC 62841-1:2014, Clause 15 is applicable.
16 Overload protection of transformers and associated circuits
IEC 62841-1:2014, Clause 16 is applicable.
17 Endurance
IEC 62841-1:2014, Clause 17 is applicable, except as follows:
17.2 Replacement:
The test is conducted with or without fasteners in the tool.
NOTE See 5.101 for tests that are conducted without fasteners.
For tools other than multi-blow tools, the tool is operated at the cycle rate as specified in
12.2.1 for 20 000 actuations at a voltage equal to the highest rated voltage or equal to the
upper limit of the rated voltage range. It is not necessary for the test to be continuous.
– 14 – IEC 62841-2-16:2024 © IEC 2024
For multi-blow tools, the tool is cycled for 12 h at a voltage equal to the highest rated voltage
or equal to the upper limit of the rated voltage range. It is not necessary for the 12 h of
operation to be continuous. Each cycle of operation comprises an "on" period of 20 s and an
"off" period of 20 s, the "off" periods being included in the specified 12 h operating time. If the
cycle of operation limited by the construction is less than 20 s "on" and 20 s "off", then this
cycle may be used.
The tool may be switched on and off by means of a switch other than that incorporated in the
tool unless this disables a functionality of the tool switch.
During this test, replacement of the carbon brushes is allowed, and the tool is oiled and greased
as in normal use. If mechanical failure occurs and does not impair compliance with this
document, the part that failed may be replaced.
If the temperature rise of any part of the tool exceeds the temperature rise determined during
the test of 12.1, forced cooling or rest periods may be applied, the rest periods being excluded
from the specified operating time. If forced cooling is applied, it shall not alter the air flow of the
tool or redistribute carbon deposits.
During these tests, overload protection devices incorporated in the tool shall not activate.
18 Abnormal operation
IEC 62841-1:2014, Clause 18 is applicable, except as follows:
18.3 This subclause of IEC 62841-1:2014 is not applicable.
18.4 This subclause of IEC 62841-1:2014 is not applicable.
18.5.1 Replacement:
All fuses, thermal cut-outs, overload protectors and the like specified in 18.2 that are
accessible or that can be reset by the user without the aid of a tool and any self-resetting
protective devices are shorted.
The function of electronic circuits that prevent the tool from operating while the tool is stalled
shall be disabled unless that function has been evaluated as a safety critical function in
accordance with 18.8. The tool is connected to a minimum 12 kVA circuit.
The leakage current between live parts and accessible parts that are not grounded by class I
construction, is measured in accordance with Clause C.3 and is monitored throughout the test
and after the test until the leakage current has stabilized or decreases. The leakage current
shall not exceed 2 mA.
The armature or rotor of the motor is stalled or, for solenoid designs, the solenoid is
continuously operated for 15 min or until the tool open-circuits or flame appears. If either
condition occurs, immediately switch off the current and if flame appears, extinguish with CO
extinguisher.
After the tool has returned to within 5 K of the ambient temperature, an electric strength test
per Clause D.2 is performed between live parts and those accessible parts that are not
grounded by class I construction as follows:
– if a tool does not operate after the 15 min, apply a 1 500 V electric strength test;
– if a tool still operates after the 15 min, apply a 2 500 V electric strength test.
If the tool has permanently open-circuited due to an overtemperature condition before 15 min
has elapsed for any reason except the opening of a motor winding, the test shall be repeated.
This second test shall be terminated in the same manner unless the test is otherwise
satisfactorily completed.
If the test terminated due to a non-self-resetting thermal limit function of an electronic circuit,
this circuit shall either be bypassed or evaluated as a safety critical function in accordance
with 18.8.
If the tool has permanently open-circuited for reasons other than above, the cause is determined
and bypassed in a new sample and the test is repeated.
18.8 Replacement of Table 4 by the following:
Table 4 – Required performance levels
Type and purpose of SCF Minimum performance level
(PL)
Power switch – prevent causing light duty tools to actuate with the trigger a
released.
Power switch – prevent causing pinners operated by a dual activation device b
to actuate with either device, such as triggers, levers or switches, released
Power switch – prevent causing tools, other than multi-blow tools, light duty c
tools and pinners operated by a dual activation device, to actuate with either
trigger or workpiece contact released
Power switch – prevent unwanted switch on for multi-blow tools Not an SCF
Power switch – provide desired switch off for multi-blow tools Not an SCF
Indication of contact actuation mode or contact actuation with automatic a
reversion mode as required in 8.11
Prevent exceeding the trigger time-out period for contact actuation with a
automatic reversion as in 19.103.
Prevent being in contact actuation modes when single sequential actuation a
or full sequential actuation modes are selected as in 19.104
19 Mechanical hazards
IEC 62841-1:2014, Clause 19 is applicable, except as follows:
19.6 This subclause of IEC 62841-1:2014 is not applicable.
19.101 The tool, except for multi-blow tools, shall be provided with a user-operated trigger
and either shall:
a) have a workpiece contact so that it is not possible to actuate the tool unless both the
trigger and the workpiece contact have been activated; or
b) be a pinner operated by a dual activation device; or
c) be a light duty tool.
Compliance is checked by inspection, by measurement and by practical tests in all possible
positions of use of the tool.
NOTE 101 In Europe (EN IEC 62841-2-16), the following conditions apply:
NOTE 19.101 The tool, except for multi-blow tools, shall be provided with a user-operated trigger and it shall
have a workpiece contact so that it is not possible to actuate the tool unless both the trigger and the workpiece
contact have been activated.
– 16 – IEC 62841-2-16:2024 © IEC 2024
Compliance is checked by inspection, by measurement and by practical tests in all possible positions of use of the
tool.
19.102
19.102.1 Tools required to have a workpiece contact shall be constructed with an actuation
system employing at least one of the actuation modes permitted in Table 101.
Compliance is checked by inspection and by the following test.
A force in accordance with Table 101 is applied to the workpiece contact
– in the same direction as the normal direction of activation of the workpiece contact; and
– in such a way that the weight of any part of the tool, including the workpiece contact, does
not influence the test result.
For tools that operate in full sequential actuation and in single sequential actuation, the test
force specified in Table 101 is applied to the workpiece contact. The trigger is then activated.
The tool shall not actuate.
For tools that operate in contact actuation or in contact actuation with automatic reversion,
the trigger is activated and a force is applied gradually to the workpiece contact until the
force is equal to the test force specified in Table 101. The tool shall not actuate. For tools that
operate in contact actuation with automatic reversion, the test shall be completed before
the tool reverts.
For tools with the ability to select different actuation modes, all actuation modes shall comply.
For to
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