IEC 60730-1:2013/AMD2:2020

Amendment 2 - Automatic electrical controls - Part 1: General requirements

Amendment 2 - Dispositifs de commande électrique automatiques - Partie 1: Exigences générales

General Information

• Status: Published
• Publication Date: 07-Apr-2020
• ICS: 97.120 - Automatic controls for household use
• Technical Committee: TC 72 - Automatic electrical controls
• Drafting Committee: WG 8 - TC 72/WG 8
• Current Stage: DELPUB - Deleted Publication
• Start Date: 19-Sep-2022
• Completion Date: 26-Oct-2025

Relations

• Amends: IEC 60730-1:2013 - Automatic electrical controls - Part 1: General requirements
• Effective Date: 05-Sep-2023
• Revised: IEC 60730-1:2022 - Automatic electrical controls - Part 1: General requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60730-1 ®
Edition 5.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 2
AM ENDEMENT 2
Automatic electrical controls –
Part 1: General requirements
Dispositifs de commande électrique automatiques –
Partie 1: Exigences générales
IEC 60730-1:2013-11/AMD2:2020-04(en-fr)

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 Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
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.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and definitions clause of
IEC publications issued between 2002 and 2015. Some
IEC Customer Service Centre - webstore.iec.ch/csc entries have been collected from earlier publications of IEC
If you wish to give us your feedback on this publication or TC 37, 77, 86 and CISPR.

need further assistance, please contact the Customer Service

Centre: [e-mail].
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.

Recherche de publications IEC - Electropedia - www.electropedia.org
webstore.iec.ch/advsearchform Le premier dictionnaire d'électrotechnologie en ligne au
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
comité d’études,…). Elle donne aussi des informations sur les 16 langues additionnelles. Egalement appelé Vocabulaire
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
Restez informé sur les nouvelles publications IEC. Just 67 000 entrées terminologiques électrotechniques, en anglais
Published détaille les nouvelles publications parues. et en français, extraites des articles Termes et définitions des
Disponible en ligne et une fois par mois par email. publications IEC parues entre 2002 et 2015. Plus certaines
entrées antérieures extraites des publications des CE 37, 77,
Service Clients - webstore.iec.ch/csc 86 et CISPR de l'IEC.

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 60730-1 ®
Edition 5.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 2
AM ENDEMENT 2
Automatic electrical controls –

Part 1: General requirements
Dispositifs de commande électrique automatiques –

Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.120 ISBN 978-2-8322-8065-2

– 2 – IEC 60730-1:2013/AMD2:2020
 IEC 2020
FOREWORD
This amendment has been prepared by IEC technical committee 72: Automatic electrical
controls.
The text of this amendment is based on the following documents:
FDIS Report on voting
72/1226/FDIS 72/1237/RVD
Full information on the voting for the approval of this amendment can be found in the report on
voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication 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.
_____________
1 Scope and normative references
1.2 Normative references
Replace reference IEC 60664-3:2003 with the following:
IEC 60664-3:2016, Insulation coordination for equipment within low-voltage systems – Part 3:
Use of coating, potting or moulding for protection against pollution
Add the following references:
IEC 61051-1, Varistors for use in electronic equipment – Part 1: Generic specification
IEC 61051-2, Varistors for use in electronic equipment – Part 2: Sectional specification for surge
suppression varistors
IEC 61051-2-2, Varistors for use in electronic equipment – Part 2: Blank detail specification for
zinc oxide surge suppression varistors. Assessment level E

 IEC 2020
IEC 63044-3, Home and Building Electronic Systems (HBES) and Building Automation and
Control Systems (BACS) – Part 3: Electrical safety requirements
2 Terms and definitions
2.1 Definitions relating to ratings, voltages, currents, frequencies, and wattages
Replace Definitions 2.1.4 and 2.1.5 with the following:
2.1.4
extra-low voltage
ELV
voltage not exceeding the maximum values of 50 V AC (RMS), 70,7 V AC (peak) or 120 V DC
(ripple-free) between conductors and between conductors and earth which is permitted to be
maintained indefinitely under normal and single-fault conditions
Note 1 to entry: Ripple-free is conventionally defined as an RMS ripple voltage of not more than 10 % of the DC
component.
Note 2 to entry: The use of ELV other than in SELV system or PELV system is not a protective measure against
electric shock, this is in line with IEC 61140:2001.
2.1.5
safety extra-low voltage
SELV
voltage for use in SELV system or PELV system between simultaneously accessible part(s)
and between any accessible part and earth, not exceeding the limits of 30 V AC (RMS), 42,4 V
AC (peak) or 60 V DC (ripple free) under normal and single-fault condition, which is provided by
an independent source (such as safety isolating transformers, motor generators, and batteries)
or when obtained from higher voltage is obtained by a safety isolating transformer or a
converter with separate windings providing equivalent insulation
Note 1 to entry: The voltage limits are based on the assumption that the safety isolating transformer is supplied
at its rated voltage. For the purpose of the output test in 24.1.1, the secondary output voltage limit shall be increased
as specified in 17.2.2.
Note 2 to entry: Transformers used in converters that have separate windings and provide equivalent insulation
are covered under IEC 61558-2-6 and IEC 61558-2-16.
Note 3 to entry: SELV limits are defined regardless of any special condition which may occur in installation. Different
requirements may be specified in the relevant electrical installation standards (e.g. IEC 60364 (all parts)) or in the
applicable local regulations.
Note 4 to entry: Ripple-free is conventionally defined as an RMS ripple voltage of not more than 10 % of the DC
component.
Note 5 to entry: SELV limits may be different in other product or system standards. In case a control is declared
exclusively for use in applications governed by a different standard, the limits set by the application standard apply
(e.g. controls to be used exclusively in household appliances according IEC 60335 set of standards or connected
to HBES/BACS systems according to IEC 63044-3 accept different SELV voltage limits).
Add the following new definition:
2.3.33
mounting surface temperature
T
s max
declared maximum temperature to which the mounting surface of the control is intended to be
exposed including any likely overshoot once a control has operated

– 4 – IEC 60730-1:2013/AMD2:2020
 IEC 2020
2.13 Miscellaneous definitions
2.13.4
normal use
Add the following Note 3:
Note 3 to entry: Normal use may include standby mode, and one or more operating modes.
Add the following new definition:
2.13.12
intentionally weak trace
printed circuit board trace intended to rupture under conditions of abnormal operation to prevent
the occurrence of a condition which could impair compliance with this document
Note 1 to entry: See 11.1.4.
7 Information
7.2 Methods of providing information
Table 1 (7.2 of edition 3) – Required information and methods
of providing information (1 of 4)
Replace line 23, Line 43, line 76, line 86 and line 87 with the following:
Information Clause or Method
subclause
23 Maximum temperature of mounting surface (T ) if it differs by more than
6.12.2, 14.1, C
s max
17.3
20 K from T
max
j
6.4,11.4.11, D or E
43 Reset characteristics for cut-out action
11.4.12
76 Type of printed circuit board protection Annex P or X
Annex Q
86 For SELV or PELV circuits, the ELV limits realized 2.1.5, 8.1.1, T.3.2 X
87 Value of accessible voltage of SELV/PELV circuit, if different from 8.1.1, and the 2.1.4, 6.8.4.1, X
product standard(s) referred to for the application of the control, in which the 6.8.4.2, 8.1.1.1
accessible SELV/PELV level(s) is (are) given

8 Protection against electric shock
8.1 General requirements
8.1.1
Replace the second and third paragraphs with the following:
Unless otherwise specified, accessible parts connected to SELV systems or PELV systems
where the voltage does not exceed the SELV limits of 2.1.5 are not considered to be hazardous
live parts.
For accessible parts connected to a SELV system or a PELV system where the voltage
exceeds the SELV limits of 2.1.5 or the voltage limits declared in item 87 of Table 1, the current
measured between the simultaneously accessible parts and between accessible parts and
earth shall not exceed the limits in H.8.1.10.1 under fault-free (normal) and single-fault
conditions.
 IEC 2020
8.1.1.1
Replace the second dashed text and the Note with the following:
– if the manufacturer declares the application, product standard governing the application and
level of voltage for accessible SELV/PELV circuits considered to be non-hazardous by the
application standard (Table 1, requirement 87).
11 Constructional requirements
11.1 Materials
Add the following new subclause:
11.1.4 Intentionally weak traces
Intentionally weak traces shall be used only to protect against hazards caused by failure of
components included in Table H.24. See H.27.1.1.8.
11.4 Actions
11.4.11 Type 1.H or 2.H action
Add the following NOTE after the compliance criteria:
NOTE The test is given in the relevant part 2.
11.4.12 Type 1.J or 2.J action
Add in the last sentence before “–35 °C” the text “0 °C or”, so that it reads “0 °C or –35 °C”.
Add the following NOTE after the compliance criteria:
NOTE The test is given in the relevant part 2.
13.2 Electric strength
a
Table 12 (13.2 of edition 3) – Insulation or disconnection test voltages (1 of 2)
Replace in the row for Electronic disconnection in the most right column “–” with “2 × U” as
follows:
b, q
Insulation or disconnection to be
Test voltage for working voltage (U)
c, d
tested
e f
Working voltage
SELV Working voltage
f
≤ 50 V
50 V < U ≤ 690 V
m, n
100 100
Electronic disconnection  2 × U

14 Heating
Replace in 14.5.1 the text “different from T ” with “higher than T by more than 20 K as
max max
follows:
14.5.1 The temperature of the switch head is maintained between T and either
max
(T + 5) °C or 1,05 times T , whichever is greater. The temperature of any mounting surface
max max
– 6 – IEC 60730-1:2013/AMD2:2020
 IEC 2020
is maintained between T and either (T + 5) °C or 1,05 times T whichever is the
s max s max s max
greater if T is higher than T by more than 20 K.
s max max
17 Endurance
17.2 Electrical conditions for the tests
Table 15 – (17.2.2 of edition 3) – Electrical conditions for the overload tests of 17.7 and
17.10
Add the following two “Type of circuits” into the table, after the row “Declared motor load”, as
shown below.
Table 15 (17.2.2 of edition 3) – Electrical conditions
for the overload tests of 17.7 and 17.10
(this table applies in Canada, USA, and all countries which use an overload test)
Type of circuit Operation AC circuit DC circuit
V A Power factor V A
Declared specific load Making and V V
1,5 I 0,75 – 0,8 1,5 I
R R
x R
(classified 6.2.3) breaking
V V
20 mA load (classified Making and 1,5 I 0,95 20 mA Non-
R R
x
6.2.4) breaking inductive
In the line for “Pilot duty load”:
th
• Replace 11 with 10 in the 4 column,
• Remove 1,1 in front of VA/V in the 4th column.
T
nd
Add a new paragraph after the 2 dashed item with the following text:
For Canada, pilot duty, the AC circuit voltage value is 1,2 V for making and breaking operation.
T
Table 16 – (17.2.3 of edition 3) – Electrical conditions for the overload tests
of 17.8, 17.9, 17.11, 17.12 and 17.13
Replace in the title of the table “overload” with “endurance”.
Add the following two “Type of circuits”, after the row “Declared motor load”, as shown below.
Table 16 (17.2.3 of edition 3) – Electrical conditions for the endurance tests
of 17.8, 17.9, 17.11, 17.12 and 17.13
(this table applies in Canada, USA, and all countries which use an overload test)
Type of circuit Operation AC circuit DC circuit
V A Power factor V A
a
Declared specific load Making and V V As determined by
As determined by load
R R
a
(classified 6.2.3) breaking
load
20 mA load Making and V 20 mA 0,95 V 20 mA Non-
R R
(classified 6.2.4) breaking inductive

 IEC 2020
rd
In the line for “Pilot duty load”, remove 1,1 in front of V in the 3 column for Making and
T
Breaking.
Add the following new footnote to the end of the table:
a
“ A control may be operated faster than 1 cycle per minute if synthetic loads are used or if a sufficient number of
banks of lamps controlled by a commutator are employed so that each bank will cool for at least 59 seconds
between successive applications.”
20 Creepage distances, clearances and distances through solid insulation
nd
Replace in the first line of the 2 paragraph “coating” with “protection”.
Replace in the second paragraph "IEC 60664-3:2003" with "IEC 60664-3:2016".
24 Components
24.1
Add the following text after the third paragraph:
If varistors are used as surge protective devices, they shall be selected to withstand the impulses
corresponding to the installation class for which is intended to be used. Additionally, if they are
connected to the supply mains, they shall comply with IEC 61051-1, IEC 61051-2 or
IEC 61051-2-2.
24.5
Add the following text at the end of the second dashed item:
“, or protected against the risk of electric shock through double or reinforced insulation, or by
means of protective impedance;”
Add the following text at the end of the third dashed item:
“, or the control or final equipment complies with Clause H.27.1.1.5 when the thermistor is open
or short circuited”;
Annex H – Requirements for electronic controls
H.7 Information
Replace item 60 with the following:
Information Clause or Method
subclause
60 Installation class (surge immunity) and operating modes 24.1, X
H.26.8.2,
H.26.8.3,
Annex R
– 8 – IEC 60730-1:2013/AMD2:2020
 IEC 2020
H.11 Constructional requirements
H.11.2.5
Replace the second paragraph and the NOTE with the following paragraph:
The use of only one Y1 capacitor is permitted where the capacitor complies with IEC 60384-14
appropriate to the working voltage of application where it is used.
Additionally, add the following compliance criteria text after the text “Capacitors shall comply
with IEC 60384-14, class Y”.
Compliance is checked by
a) open-circuiting each impedance component in turn;
b) short-circuiting of those impedance components which are likely to fail by a short circuit
(according to Clause H.27);
c) applying a fault condition according to Clause H.27 to any part of the circuit which might
influence the maximum leakage current with the protective impedance intact.
Operation of a protective device or loss of one pole of the supply shall also be considered
as faults.
H.11.12.4.1.3.2 Access to data exchange
Remove the first paragraph and remove in the last line of the second paragraph the text “of
which”.
Table H.11 – Examples of defences against unauthorised access
and transmission failure modes
Replace the Table H.11 with the following:
Defences
To Threats Sequence Time Time - Feed- Sourced Identificati Safety Cyrpto-
b d g
cover stamp back destina- on graphic
number out code
c
message tion procedure techniques

e
identifier
f
Repetition of a x x
message
Deletion of message x
Insertion of message x  x x x
Re-sequence of data in x x
message
a
Corrupted, deleted or    x
x
inserted data in
message
Delay in sending / x x
receiving the message
i
x x x
Masquerade
Examples of defences against unauthorized access can also be found in the applications covered by EN 50159:
2011.
h
Unauthorize
Transmission failure modes
d access
 IEC 2020
a
See Table H.1, items 6.1 and 6.2.
b
Additional data field containing a number that changes in a predefined way from message to message.
c
Information concerning time of transmission attached to a message by the sender.
d
Delay between two messages exceeding a predefined allowed maximum time.
NOTE 1 If this is the case, an error can be assumed.
e
Response from a receiver to a sender, via a return channel.
f
Identifier which is assigned to each entity.
NOTE 2 This identifier can be a name, number or arbitrary bit pattern. This identifier will be used for the safety-
related communication. Usually the identifier is added to the user data.
g
Redundant data included in a safety-related message to permit data corruptions to be detected by the safety-
related transmission function.
h
These failure modes are of random and systematic nature.
i
Masquerade: Making an inauthentic message look like an authentic message by an unauthorized user.

H.11.12.4.3.6 Consideration for the evaluation of reset functions on the final application
Add the following note as NOTE 1 and renumber the existing note to NOTE 2:
NOTE 1 Remote reset requirements are dictated by the end product requirements (example – the boiler standard).
H.11.12.4.4.1
Add in the first paragraph after “Software updates” the following text “for Class B and Class C
software”.
H.26 Electromagnetic compatibility (EMC) requirements – Immunity
st
Add in the 1 paragraph of H.26.1 after “normal use” the text “(see NOTE 3 of 2.13.4)”.
H.26.8.3 Test procedure
Replace the second paragraph with the following and remove the third paragraph:
If the system has more than one relevant operating mode, the impulses can be distributed over
the relevant operating modes provided that, for each operating mode, a minimum of one impulse
of each polarity (+, -) and each phase angle described in IEC 61000-4-5, shall be applied.
H.26.9 Electrical fast transient/burst immunity test
H.26.9.2 Test levels
Add in the paragraph for “operating conditions” after “as in the relevant part 2”, "or, in the
absence of a part 2, the relevant operating modes”.
H.27.1.1.2
Replace in d) “an electrical” with “a power” and add an item f) with the following text:
f) The power supply to the control shall have the capability of supplying a short-circuit current
of at least 500 A.
– 10 – IEC 60730-1:2013/AMD2:2020
 IEC 2020
Add the following new subclauses:
H.27.1.1.7 If the test is terminated by the functioning of a component other than an overcurrent
protective device, the following criteria shall be met, in addition to H.27.1.1.3:
a) To ensure consistency and repeatability, the test is to be repeated on two additional samples
resulting in the same component terminating the test.
b) To ensure that the disconnection is reliable, an electric strength potential corresponding to
functional insulation, as specified in Table 12, shall be applied across the “functioned”
component. Each sample shall comply with the criteria of 13.2. Parallel paths that could
compromise the electric strength test results shall be disconnected.
To ensure reproducibility of the test results, the following information shall be recorded: specify
the component by the type, ratings and other relevant technical information.
H.27.1.1.8 If the test is terminated by the functioning of an intentionally weak trace, an
analysis shall be conducted on the open trace and the control shall comply with the criteria of
items a), c), and d) of H.27.1.1.3. The analysis of the open trace shall consist of at least the
following:
a) Upon functioning, an electric strength potential based on the value for functional insulation
per table 12 shall be applied across the two ends of the opened trace.
b) To ensure consistency and repeatability, the test is to be repeated on two additional samples
with complying results.
To ensure reproducibility of the test results, the following information shall be recorded:
– specify the dimensions of the weak trace (width, length, thickness, shape) ,
– material of PCB,
– other relevant technical information.
An example of material is FR4, CEM1, CEM 3, type and thickness of conformal coating, etc.
Annex J – Requirements for thermistor elements and controls using
thermistors
J.4.3.5.4.1
st
Add to the end of the 1 sentence the following new text:
“ provided that it complies with the applicable declaration (e.g. number of cycles) of the control.”
Annex Q – Printed circuit board protection performance test
Q.1
Replace the existing text with the following:
Printed circuit boards conforming with all the requirements for type 1 protection as
specified in IEC 60664-3:2016 shall comply with the minimum creepage distance requirements
of Clause 20 of this document, pollution degree 1.
NOTE Type 1 protection improves the microenvironment of the parts under the protection (IEC 60664-3, 2016).

 IEC 2020
Q.2
Replace the existing text with the following:
Printed circuit boards conforming with all of the requirements for type 2 protection as
specified in IEC 60664-3:2016 shall comply with the minimum requirements for solid insulation
as specified in 20.3 of this document. The spacing between the conductors before the protection
is applied shall not be less than the values as specified in Table 1 of IEC 60664-3:2016, but not
less than 0,2 mm for functional or basic insulation and not less than 0,7 mm for supplementary
or reinforced insulation.
NOTE Type 2 protection is considered to be similar to solid insulation (IEC 60664-3, 2016).
Q.3
Replace the existing text with the following:
Six samples of actual printed circuit boards are required
• testing of the protection
– test specimens according to IEC 60664-3:2016, Annex C, which specifically applies for
printed circuit boards; the specimen used for testing shall have the same minimum
distances as those from production; or
– specimens from production; or
– any printed circuit board, as long as the test specimens are representative of those from
production;
• testing of mouldings and potting materials
– production specimens shall be used, or they shall be representative of those from
production.
Q.4
Replace “coating” with “protection” and “2003, Amendment 1:2010” with “2016”.
Q.5
Replace “2003, Amendment 1:2010” with “2016”.
Table Q.1 – IEC 60664-3 test levels or conditions
Replace Table Q.1 with the following:
IEC 60664-3:2016, Subclause Test level of this document
5.6 Scratch-resistance test Not relevant for inner layers of multi-layer boards of type 2 protection
5.7.2 Cold conditioning –25 °C
5.7.3 Dry-heat conditioning The maximum working surface temperature as given in Table 2 of
IEC 60664-3:2016 is the printed circuit board's surface temperature
during normal operation.
This test covers also the test of 20.3.2.2, second indent.
5.7.4 Rapid change of temperature
Degree of severity 2 (–25 °C to +125°C)
5.7.5.2 Electromigration 21 days
5.8.2 Adhesion of protection Not relevant for inner layers of multi-layer boards of type 2 protection
5.8.5 Partial discharge Only applicable if the peak voltage exceeds 700 V and if the field
strength > 1 kV/mm, see IEC 60664-1:2011, 6.1.3.1.
The test sequence shall be according Table A.1 of IEC 60664-3:2016

– 12 – IEC 60730-1:2013/AMD2:2020
 IEC 2020
Replace Figures Q.1 and Q
...