IEC 60204-1:2016/AMD1:2021

IEC 60204-1 ®
Edition 6.0 2021-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Safety of machinery –
Part 1: General requirements
Sécurité des machines –
Partie 1: Exigences générales
IEC 60204-1:2016-10/AMD1:2021-09(en-fr)

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IEC 60204-1 ®
Edition 6.0 2021-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Safety of machinery –
Part 1: General requirements
Sécurité des machines –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.110; 29.020 ISBN 978-2-8322-1022-7

– 2 – IEC 60204-1:2016/AMD1:2021
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF MACHINERY –
Part 1: General requirements
AMENDMENT 1
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 the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
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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) Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 60204-1:2016 has been prepared by IEC technical committee 44: Safety
of machinery – Electrotechnical aspects.
The text of this Amendment is based on the following documents:
Draft Report on voting
44/884/CDV 44/913/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.

© IEC 2021
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/standardsdev/publications/.
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,
• replaced by a revised edition, or
• amended.
___________
FOREWORD
Replace the 7th item under the 8th paragraph with:
6.3.3 b): The use of residual current protective devices with a rated residual operating
current which is coordinated with the earth electrode resistance is mandatory in TT
systems as a means for fault protection by automatic disconnection of supply (Italy).

Replace the 8th item under the 8th paragraph with:
7.2.3: Disconnection of the neutral conductor is mandatory in a TN-S system (France).

Add the following new item after the 8th item under the 8th paragraph with:
7.2.3: Disconnection of the neutral conductor is mandatory in TN-systems (Norway).

2 Normative References
Delete the existing reference to IEC 60034-1.
Replace the existing reference to IEC 60364-4-41 with the following new reference:
IEC 60364-4-41:2005, Low-voltage electrical installations – Part 4-41: Protection for safety –
Protection against electric shock
IEC 60364-4-41:2005/AMD1:2017
– 4 – IEC 60204-1:2016/AMD1:2021
© IEC 2021
Replace the existing reference to IEC 60364-5-53 with the following new reference:
IEC 60364-5-53:2019, Low-voltage electrical installations – Part 5-53: Selection and erection
of electrical equipment – Devices for protection for safety, isolation, switching, control and
monitoring
Add the following new reference:
IEC 60364-6:2016, Low-voltage electrical installations – Part 6: Verification
Replace the existing reference to IEC 60445 with the following new reference:
IEC 60445:2017, Basic and safety principles for man-machine interface, marking and
identification – Identification of equipment terminals, conductor terminations and conductors
Replace the existing reference to IEC 60947-5-1 with the following new reference:
IEC 60947-5-1:2016, Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices
and switching elements – Electromechanical control circuit devices
Replace the existing reference to IEC 61558-1 with the following new reference:
IEC 61558-1:2017, Safety of transformers, reactors, power supply units and combinations
thereof – Part 1: General requirements and tests
Replace the existing reference to ISO 7010 with the following new reference:
ISO 7010:2019, Graphical symbols – Safety colours and safety signs – Registered safety signs
ISO 7010:2019/AMD1:2020
Replace the existing reference to ISO 13850 with the following new reference:
ISO 13850:2015, Safety of machinery – Emergency stop function – Principles for design

3.1 Terms and definitions
Replace existing source reference for term 3.1.16 "direct opening action" with the following new
text:
[SOURCE: IEC 60947-5-1:2016, K.2.2]
Replace the existing source reference for term 3.1.21 "emergency stop device" with the
following new text:
[SOURCE: ISO 13850:2015, 3.3, modified – Note has been added]

© IEC 2021
4.4.2 Electromagnetic Compatibility
Delete the existing second paragraph of Subclause 4.4.2.
Rename existing NOTE to NOTE 1 and add, after NOTE 1, the following new NOTE 2:
NOTE 2 Annex H provides examples of measures to reduce the effects of electromagnetic influences.

4.4.5 Altitude
Replace the existing text of the second paragraph of Subclause 4.4.5 before the hyphenated
list with the following new text:
For equipment to be used at higher altitudes, it is necessary to take into account changes in
parameters for example, the reduction of:
Add, at the beginning of the third paragraph of Subclause 4.4.5, the following new text:
Other parameters of different components can also alter with altitude.

6.3.1 General
Replace the text of NOTE 1 with the following new text:
The risk of harmful physiological effects from touch voltages depends upon a number of factors. These include but
are not limited to; value of touch voltage, duration of possible exposure, environmental factors, skin condition.

8.2.1 General
Replace the fourth bulleted item of Subclause 8.2.1 with the following new text:
• those conductive structural parts of the machine used for protective bonding.

8.2.2 Protective Conductors
Replace the existing text of the fifth paragraph of Subclause 8.2.2 with the following new text:
Each protective conductor shall:
• be part of a multicore cable, or;
• be in a common enclosure with the line conductor, or;
• have a cross-section
...