IEC 60730-2-7:2015

Automatic electrical controls - Part 2-7: Particular requirements for timers and time switches

IEC 60730-2-7:2015 applies to timers and time switches for household and similar use that may use electricity, gas, oil, solid fuel, solar thermal energy, etc. or a combination thereof, including heating, air conditioning and similar applications. This standard is also applicable to individual timers utilized as part of a control system or timers which are mechanically integral with multifunctional controls having non-electrical outputs. This standard does not apply to time-delay switches (TDS) within the scope of IEC 60669-2-3. This standard applies to the inherent safety, to the operating characteristics where such are associated with equipment protection and to the testing of timers used in appliances and other apparatus, electrical and non-electrical, for household and similar purposes, but also extended to industrial purposes when no dedicated product standards exist, such as that for central heating, air conditioning, process heating, etc. Timers for equipment not intended for normal household use, but which nevertheless may be used by the public, such as equipment intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. This third edition cancels and replaces the second edition published in 2008. This third edition constitutes a technical revision. This new edition revises the compliance criteria of type 1.S and 2.S action, revises the requirements for filament lamp loads, adds requirements for abnormal operation in Annex H, removes some special requirements for single countries as well as updates the standard to IEC 60730-1:2010, fourth edition. Key words: Timers, Time Switches
This publication is to be read in conjunction with IEC 60730-1:2013.

Dispositifs de commande électrique automatiques - Partie 2-7: Exigences particulières pour les minuteries et les minuteries cycliques

IEC 60730-2-7:2015 s'applique aux minuteries et aux minuteries cycliques qui peuvent utiliser l'électricité, le gaz, le pétrole, un combustible solide, l'énergie thermique solaire, etc., ou une combinaison de ces énergies, y compris des applications de chauffage, de climatisation et analogues.
La présente norme s'applique également aux minuteries particulières qui sont utilisées en tant que parties d'un système de commande ou aux minuteries qui sont intégrées mécaniquement dans des dispositifs de commande multifonctions qui possèdent des sorties non électriques. La présente norme ne s'applique pas aux interrupteurs temporisés (Time-Delay Switches – TDS) qui relèvent du domaine d'application de l’IEC 60669-2-3.
La présente norme s'applique à la sécurité intrinsèque, aux caractéristiques de fonctionnement dans la mesure où elles interviennent dans la protection des matériels ainsi qu'aux essais des minuteries utilisées dans les appareils et autres appareillages, électriques et non électriques, à usage domestique et analogue, mais aussi avec une extension aux applications industrielles pour lesquelles il n'existe aucune norme de produit spécifique, telles que celles pour le chauffage central, la climatisation, la production de chaleur industrielle, etc.
Les minuteries pour les matériels qui ne sont pas prévus pour un usage domestique normal, mais qui peuvent néanmoins être utilisés par le grand public, comme les matériels prévus pour être utilisés par des profanes dans les magasins, dans l'industrie légère et dans les fermes, entrent dans le domaine d'application de la présente norme.
Cette troisième édition annule et remplace la deuxième édition parue en 2008. Cette troisième édition constitue une révision technique. La présente nouvelle édition révise les critères de conformité des actions de type 1.S et 2.S ainsi que les exigences pour les charges par lampes à filament, elle ajoute des exigences pour le fonctionnement anormal dans l'Annexe H, elle supprime une partie des exigences spécifiques à certains pays et elle met la norme à jour par rapport à l'IEC 60730-1:2010, quatrième édition.
Mots clés: minuteries, minuteries cycliques
La présente partie 2-7 est destinée à être utilisée conjointement avec l'IEC 60730-1:2013.

General Information

• Status: Published
• Publication Date: 11-Mar-2015
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 97.120 - Automatic controls for household use
• Technical Committee: TC 72 - Automatic electrical controls
• Drafting Committee: WG 5 - TC 72/WG 5
• Current Stage: PPUB - Publication issued
• Start Date: 28-Feb-2015
• Completion Date: 12-Mar-2015

Relations

• Revises: IEC 60730-2-7:2008 - Automatic electrical controls for household and similar use - Part 2-7: Particular requirements for timers and time switches
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60730-2-7 ®
Edition 3.0 2015-03
INTERNATIONAL
STANDARD
Automatic electrical controls –
Part 2-7: Particular requirements for timers and time switches

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.

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IEC 60730-2-7 ®
Edition 3.0 2015-03
INTERNATIONAL
STANDARD
Automatic electrical controls –

Part 2-7: Particular requirements for timers and time switches

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.120 ISBN 978-2-8322-2432-8

– 2 – IEC 60730-2-7:2015 © IEC 2015
CONTENTS
FOREWORD . 3
1 Scope and normative references . 6
2 Definitions . 7
3 General requirements . 8
4 General notes on tests . 8
5 Rating. 8
6 Classification . 8
7 Information . 9
8 Protection against electric shock . 10
9 Provision for protective earthing . 10
10 Terminals and terminations . 10
11 Constructional requirements . 10
12 Moisture and dust resistance . 11
13 Electric strength and insulation resistance . 11
14 Heating . 11
15 Manufacturing deviation and drift . 11
16 Environmental stress . 12
17 Endurance . 12
18 Mechanical strength . 17
19 Threaded parts and connections . 17
20 Creepage distances, clearances and distances through solid insulation . 17
21 Resistance to heat, fire and tracking . 17
22 Resistance to corrosion . 17
23 Electromagnetic compatibility (EMC) requirements – emission . 17
24 Components . 18
25 Normal operation . 18
26 Electromagnetic compatibility (EMC) requirements – immunity . 18
27 Abnormal operation . 18
28 Guidance on the use of electronic disconnection . 18
Annex H (normative) Requirements for electronic controls . 19
Annex AA (normative) Number of cycles, automatic and manual action . 23
Bibliography . 24

Table 14 – Electrical conditions for the overvoltage test . 13
Table 15 – Electrical conditions for the overload tests of 17.7 and 17.10 . 13
Table 16 – Electrical conditions for the overload tests of 17.8, 17.9, 17.11, 17.12 and
17.13 . 13
Table 101 – Electrical conditions for overload and endurance testing. 16
Table AA.1 – Values for free standing, independently mounted and in-line cord timers
a
and time switches . 23

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC ELECTRICAL CONTROLS –

Part 2-7: Particular requirements
for timers and time switches
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
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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
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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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 IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60730-2-7 has been prepared by IEC technical committee 72:
Automatic electrical controls.
This third edition cancels and replaces the second edition published in 2008. This third edition
constitutes a technical revision. This new edition revises the compliance criteria of type 1.S
and 2.S action, revises the requirements for filament lamp loads, adds requirements for
abnormal operation in Annex H, removes some special requirements for single countries as
well as updates the standard to IEC 60730-1:2010, fourth edition.
This Part 2-7 is intended to be used in conjunction with IEC 60730-1. It was established on
the basis of the fourth edition (2010) of that publication. IEC 60730-1 Ed. 5 is available, and
this part 2-7 will be aligned with that edition in the future. Consideration may be given to
future editions of, or amendments to, IEC 60730-1.

– 4 – IEC 60730-2-7:2015 © IEC 2015
The title of IEC 60730-2-7 Ed.3 has been updated to the title of IEC 60730-1 Ed.5.0. However,
IEC 60730-2-7 Ed.3.0 has not been updated in accordance with the technical requirements in
IEC 60730-1 Ed. 5.0.
This Part 2-7 supplements or modifies the corresponding clauses in IEC 60730-1 so as to
convert that publication into the IEC standard: Particular requirements for timers and time
switches.
Where this Part 2-7 states "addition", "modification" or "replacement", the relevant require-
ment, test specification or explanatory matter in Part 1 should be adapted accordingly.
Where no change is necessary, this Part 2-7 indicates that the relevant clause or subclause
applies.
In the development of a fully international standard, it has been necessary to take into
consideration the differing requirements resulting from practical experience in various parts of
the world and to recognize the variation in national electrical systems and wiring rules.
The “in some countries” notes regarding differing national practice are contained in the
following clauses and subclauses:
– 6.3.6.101
– Table 1, Notes 101 and 103
– 7.2.9
– 11.4.104
– 17.16.101.1
– 17.16.101.3
– 17.16.103.1
– Table 15, Notes 101 and 102
– Table 16, Notes 101 and 102
– 21.101
– Annex D
– H.26.11
In this publication:
1) The following print types are used:
– Requirements proper: in roman type.
– Test specifications: in italic type.
– Explanatory matter: in smaller roman type
2) Subclauses, notes, tables or figures which are additional to those in Part 1 are numbered
starting from 101, additional annexes are lettered AA, BB, etc.
The text of this standard is based on the following documents:
CDV Report on voting
72/926/CDV 72/959/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
...

IEC 60730-2-7 ®
Edition 3.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Automatic electrical controls –
Part 2-7: Particular requirements for timers and time switches

Dispositifs de commande électrique automatiques –
Partie 2-7: Exigences particulières pour les minuteries et les minuteries
cycliques
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

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IEC 60730-2-7 ®
Edition 3.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Automatic electrical controls –

Part 2-7: Particular requirements for timers and time switches

Dispositifs de commande électrique automatiques –

Partie 2-7: Exigences particulières pour les minuteries et les minuteries

cycliques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.120 ISBN 978-2-8322-8691-3

– 2 – IEC 60730-2-7:2015 © IEC 2015
CONTENTS
FOREWORD . 3
1 Scope and normative references . 6
2 Definitions . 7
3 General requirements . 8
4 General notes on tests . 8
5 Rating. 8
6 Classification . 8
7 Information . 9
8 Protection against electric shock . 10
9 Provision for protective earthing . 10
10 Terminals and terminations . 10
11 Constructional requirements . 10
12 Moisture and dust resistance . 11
13 Electric strength and insulation resistance . 11
14 Heating . 11
15 Manufacturing deviation and drift . 11
16 Environmental stress . 12
17 Endurance . 12
18 Mechanical strength . 17
19 Threaded parts and connections . 17
20 Creepage distances, clearances and distances through solid insulation . 17
21 Resistance to heat, fire and tracking . 17
22 Resistance to corrosion . 17
23 Electromagnetic compatibility (EMC) requirements – emission . 17
24 Components . 18
25 Normal operation . 18
26 Electromagnetic compatibility (EMC) requirements – immunity . 18
27 Abnormal operation . 18
28 Guidance on the use of electronic disconnection . 18
Annex H (normative) Requirements for electronic controls . 19
Annex AA (normative) Number of cycles, automatic and manual action . 23
Bibliography . 24

Table 14 – Electrical conditions for the overvoltage test . 13
Table 15 – Electrical conditions for the overload tests of 17.7 and 17.10 . 13
Table 16 – Electrical conditions for the overload tests of 17.8, 17.9, 17.11, 17.12 and
17.13 . 13
Table 101 – Electrical conditions for overload and endurance testing. 16
Table AA.1 – Values for free standing, independently mounted and in-line cord timers
a
and time switches . 23

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC ELECTRICAL CONTROLS –

Part 2-7: Particular requirements
for timers and time switches
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
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60730-2-7 has been prepared by IEC technical committee 72:
Automatic electrical controls.
This third edition cancels and replaces the second edition published in 2008. This third edition
constitutes a technical revision. This new edition revises the compliance criteria of type 1.S
and 2.S action, revises the requirements for filament lamp loads, adds requirements for
abnormal operati
...