EN IEC 60730-2-24:2026
(Main)Automatic electrical controls - Part 2-24: Particular requirements for displacement electrical controls
- Abstract
This clause of Part 1 is replaced by the following:
This part of IEC 60730 applies to automatic displacement electrical controls
– for use in, on, or in association with appliances for household and similar use;
NOTE 1 Through this document, the word "control" means "displacement electrical control".
EXAMPLE 1 Displacement electrical controls used in electrical pressure cookers with gross volume up to 25 l, with working pressure over 4 kPa and less than 150 kPa.
– that are AC or DC powered controls with a rated voltage not exceeding 690 V AC or 600 V DC;
– used in, on, or in association with equipment that use electricity;
– that are mechanically or electrically operated, responsive to change of position of point of action.
NOTE 2 Requirements for manual switches not forming part of an automatic control are covered in IEC 61058-1-1.
This document applies to
– inherent safety of automatic electro-mechanical displacement electrical controls;
– functional safety of automatic electro-mechanical displacement electrical controls;
– the operating values, operating times, and operating sequences where such are associated with equipment safety;
– displacement electrical controls having temperature sensing element(s), in which cases additional requirements can be considered to be necessary. Requirements for temperature sensing controls are included in IEC 60730-2-9.
This document specifies the requirements for construction, operation and testing of automatic displacement electrical controls used in, on, or in association with equipment.
This document does not
– apply to automatic electronic controls;
– take into account the response value of an automatic action of a control, if such a response value is dependent upon the method of mounting the control in the equipment. Where a response value is of significant purpose for the protection of the user, or surroundings, the value defined in the appropriate equipment standard or as determined by the manufacturer applies.
NOTE 3 For more information about guidance to the application of displacement electrical controls, see Annex AA.
- Status
- Published
- Publication Date
- 23-Jul-2026
- Technical Committee
- CLC/TC 72 - Automatic controls for household use
- Drafting Committee
- IEC/TC 72 - IEC_TC_72
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 24-Jul-2026
- Due Date
- 31-Dec-2021
- Completion Date
- 24-Jul-2026
EN IEC 60730-2-24:2026 is the CENELEC European Standard for automatic electrical controls, part 2-24, covering displacement electrical controls. It specifies construction, operation and test requirements for controls used in, on, or in association with household and similar appliances and other equipment using electricity, for AC or DC powered controls within the stated voltage limits. The standard is intended to be used together with EN IEC 60730-1, which supplies the general requirements that this part modifies.
What does EN IEC 60730-2-24:2026 specify?
EN IEC 60730-2-24:2026 specifies particular requirements for displacement electrical controls and explains how this part supplements Part 1. It covers the controls’ inherent safety, functional safety, operating values, operating times and operating sequences where they affect equipment safety.
The scope includes controls that are mechanically or electrically operated and respond to a change of position of the point of action. It excludes automatic electronic controls, and manual switches that are not part of an automatic control are handled by IEC 61058-1-1.
The document is organized into Clauses 1 to 26, plus two annexes and a bibliography. Annex H deals with functional safety, and Annex AA gives guidance for applying displacement electrical controls in real products.
| Annex | What it covers |
|---|---|
| H | Functional safety requirements, including manufacturing deviation, drift and related checks |
| AA | Guidance for selection, installation and application of displacement electrical controls |
What are the key requirements of EN IEC 60730-2-24:2026?
EN IEC 60730-2-24:2026 is built around declared operating distances, temperatures and cycles, then verifies them by testing. For manufacturers and test labs, that means the declared values are not just descriptive data - they are the values used to select the control and judge compliance.
Clause 4.3.4.5.1 requires controls with two or more sensing positions for multiple functions to be tested one sensing position at a time. In practice, each function has to be checked separately, not only as part of a combined setup.
Clause 5 and Table 1 define the technical information that has to be declared, including the purpose of the control, mounting-surface temperature limits, number of automatic cycles, type 2 action, travel distances and maximum ambient temperature. This matters because the end-product manufacturer needs these values to install the control correctly and to verify that the application stays within the declared limits.
Clause 9.3.101 treats a displacement electrical control with an integrated protective function as a protective control. For a position limiter, once the self-locking travel distance is reached, it must not reconnect automatically when the force drops, unless it is manually reset. That is the safety feature that prevents an unintended return to a hazardous state.
Clause 9.4.3 makes the disconnection travel distance a type 2 action and limits its deviation from the declared value to ±5%. The practical effect is that the operating point has to be controlled tightly, because the switch action is part of the safety behavior.
Clause 16.5 and Clause 19.3.1 define heating-test conditions for the switch head and mounting surface. The control is tested in an appropriate heating apparatus, with special attention to draft-free conditions and to the declared temperature limits. For products mounted on hot surfaces, this confirms that the control can operate at the temperatures it will actually see.
Clause 19 defines endurance testing in terms of cycles for disconnection action and self-locking action, and it distinguishes the cycle count for different automatic actions. For position regulators and position limiters, the clause adds dedicated tests for limit travel distance and self-locking travel distance, so durability is checked at the same operating point that matters in use.
Clause 23 and Clause 25 keep electromagnetic compatibility (EMC) emission and immunity in scope. That means the control still has to behave properly in the electrical environment of the end product, not only as a mechanical device.
Annex H adds functional-safety checks for manufacturing deviation and drift. It uses fixture-based measurements, micrometer readings and simple indicator circuits to confirm that travel distances remain stable after repeated operation. For quality control, this is the part that links the declared distances to measurable test results.
What terms does EN IEC 60730-2-24:2026 define?
Displacement electrical control - an automatic control in which the point of action changes position because the container is displaced by a pressure change.
Position limiter - a displacement electrical control intended to keep a position below one particular value during normal operation, with possible adjustment by the end-product manufacturer.
Position regulator - a cycling displacement electrical control intended to keep a position between two particular values during normal operation, with possible adjustment by the end-product manufacturer.
Free position - the initial state of the point of action before displacement begins.
Disconnection position - the position at which the contact is disconnected from the circuit by the action mechanism under external force.
Self-locking position - the position at which the self-locking mechanism operates and further displacement can continue after the contact has disconnected.
Reset position - the position where the disconnected contact reconnects when displacement is reduced.
Disconnection travel distance - the distance between the free position and the disconnection position.
Who uses EN IEC 60730-2-24:2026?
EN IEC 60730-2-24:2026 is used by control manufacturers, appliance manufacturers, end-product manufacturers, test laboratories and conformity-assessment teams. They use it when designing, selecting, testing and documenting displacement electrical controls.
It is relevant to household and similar appliances, and the document’s examples show pressure-cooker applications. Quality managers and buyers use it to check whether a control matches the required travel distances, temperatures, cycle life and safety behavior for the intended appliance.
Which standards are used with EN IEC 60730-2-24:2026?
EN IEC 60730-2-24:2026 is intended to be used with EN IEC 60730-1, which provides the general requirements that this part supplements or modifies. Annex ZA of EN IEC 60730-1 applies to the European version.
IEC 61058-1-1 is referenced for manual switches that are not part of an automatic control. IEC 60730-2-6 and IEC 60730-2-9 are named in the bibliography notes as related parts for automatic pressure sensing controls and temperature sensing controls. Together, these references show where adjacent control types are handled.
What does the EN IEC 60730-2-24:2026 document contain?
The document contains a requirements table, test methods, figures and application guidance that support design verification and product testing. Table 1 lists the technical information that has to be declared and how it can be provided.
Figures 101 to 103 show the control positions, travel distances, a measurement drawing and an example test fixture. These figures support the practical measurement of disconnection, self-locking, limit and reset travel distances.
Annex H describes how to measure drift and verify stability after cycling, including the test setup, sensing circuit and temperature conditions. Annex AA adds installation examples and selection guidance, including two mounting modes and advice on matching pressure, temperature and current ratings to the appliance.
Relations
- Effective Date
- 28-Jul-2026
- Effective Date
- 28-Jul-2026
- Effective Date
- 28-Jul-2026
- Effective Date
- 28-Jul-2026
- Effective Date
- 28-Jul-2026
Frequently Asked Questions
EN IEC 60730-2-24:2026 is a standard published by CLC. Its full title is "Automatic electrical controls - Part 2-24: Particular requirements for displacement electrical controls". This standard covers: This clause of Part 1 is replaced by the following: This part of IEC 60730 applies to automatic displacement electrical controls – for use in, on, or in association with appliances for household and similar use; NOTE 1 Through this document, the word "control" means "displacement electrical control". EXAMPLE 1 Displacement electrical controls used in electrical pressure cookers with gross volume up to 25 l, with working pressure over 4 kPa and less than 150 kPa. – that are AC or DC powered controls with a rated voltage not exceeding 690 V AC or 600 V DC; – used in, on, or in association with equipment that use electricity; – that are mechanically or electrically operated, responsive to change of position of point of action. NOTE 2 Requirements for manual switches not forming part of an automatic control are covered in IEC 61058-1-1. This document applies to – inherent safety of automatic electro-mechanical displacement electrical controls; – functional safety of automatic electro-mechanical displacement electrical controls; – the operating values, operating times, and operating sequences where such are associated with equipment safety; – displacement electrical controls having temperature sensing element(s), in which cases additional requirements can be considered to be necessary. Requirements for temperature sensing controls are included in IEC 60730-2-9. This document specifies the requirements for construction, operation and testing of automatic displacement electrical controls used in, on, or in association with equipment. This document does not – apply to automatic electronic controls; – take into account the response value of an automatic action of a control, if such a response value is dependent upon the method of mounting the control in the equipment. Where a response value is of significant purpose for the protection of the user, or surroundings, the value defined in the appropriate equipment standard or as determined by the manufacturer applies. NOTE 3 For more information about guidance to the application of displacement electrical controls, see Annex AA.
This clause of Part 1 is replaced by the following: This part of IEC 60730 applies to automatic displacement electrical controls – for use in, on, or in association with appliances for household and similar use; NOTE 1 Through this document, the word "control" means "displacement electrical control". EXAMPLE 1 Displacement electrical controls used in electrical pressure cookers with gross volume up to 25 l, with working pressure over 4 kPa and less than 150 kPa. – that are AC or DC powered controls with a rated voltage not exceeding 690 V AC or 600 V DC; – used in, on, or in association with equipment that use electricity; – that are mechanically or electrically operated, responsive to change of position of point of action. NOTE 2 Requirements for manual switches not forming part of an automatic control are covered in IEC 61058-1-1. This document applies to – inherent safety of automatic electro-mechanical displacement electrical controls; – functional safety of automatic electro-mechanical displacement electrical controls; – the operating values, operating times, and operating sequences where such are associated with equipment safety; – displacement electrical controls having temperature sensing element(s), in which cases additional requirements can be considered to be necessary. Requirements for temperature sensing controls are included in IEC 60730-2-9. This document specifies the requirements for construction, operation and testing of automatic displacement electrical controls used in, on, or in association with equipment. This document does not – apply to automatic electronic controls; – take into account the response value of an automatic action of a control, if such a response value is dependent upon the method of mounting the control in the equipment. Where a response value is of significant purpose for the protection of the user, or surroundings, the value defined in the appropriate equipment standard or as determined by the manufacturer applies. NOTE 3 For more information about guidance to the application of displacement electrical controls, see Annex AA.
EN IEC 60730-2-24:2026 is classified under the following ICS (International Classification for Standards) categories: 97.120 - Automatic controls for household use. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 60730-2-24:2026 has the following relationships with other standards: It is inter standard links to EN 12098-5:2017, EN 15500-1:2017, EN 15500:2008, EN 12977-5:2018, EN 12977-5:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 60730-2-24:2026 is associated with the following European legislation: EU Directives/Regulations: 2014/30/EU, 2014/35/EU, 2014/53/EU; Standardization Mandates: M/511, M/536, M/552. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN IEC 60730-2-24:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2026
Avtomatske električne krmilne naprave - 2-24. del: Posebne zahteve za premične
električne krmilne naprave
Automatic electrical controls - Part 2-24: Particular requirements for displacement
electrical controls
Automatische elektrische Regel- und Steuergeräte - Teil 2-24: Besondere
Anforderungen an elektrische Verschiebung messende Regel- und Steuergeräte
Dispositifs de commande électrique automatiques - Partie 2-24: Exigences particulières
pour les dispositifs de commande électriques de déplacement
Ta slovenski standard je istoveten z: EN IEC 60730-2-24:2026
ICS:
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60730-2-24
NORME EUROPÉENNE
EUROPÄISCHE NORM July 2026
ICS 97.120
English Version
Automatic electrical controls - Part 2-24: Particular requirements
for displacement electrical controls
(IEC 60730-2-24:2026)
Dispositifs de commande électrique automatiques - Partie Automatische elektrische Regel- und Steuergeräte - Teil 2-
2-24: Exigences particulières pour les dispositifs de 24: Besondere Anforderungen an elektrische Verschiebung
commande électriques de déplacement messende Regel- und Steuergeräte
(IEC 60730-2-24:2026) (IEC 60730-2-24:2026)
This European Standard was approved by CENELEC on 2026-07-01. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60730-2-24:2026 E
European foreword
The text of document 72/1506/CDV, future edition 1 of IEC 60730-2-24, prepared by TC 72 "Automatic
electrical controls" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-07-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-07-31
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document is read in conjunction with EN IEC 60730-1.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60730-2-24:2026 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60730-2-6 NOTE Approved as EN IEC 60730-2-6
IEC 60730-2-9 NOTE Approved as EN IEC 60730-2-9
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Annex ZA of EN IEC 60730-1 applies.
IEC 60730-2-24 ®
Edition 1.0 2026-05
INTERNATIONAL
STANDARD
Automatic electrical controls -
Part 2-24: Particular requirements for displacement electrical controls
ICS 97.120 ISBN 978-2-8327-1192-7
IEC 60730-2-24:2026-05(en)
IEC 60730-2-24:2026 © IEC 2026
CONTENTS
FOREWORD . 2
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 General . 6
5 Required technical information . 7
6 Protection against electric shock . 8
7 Provision for protective earthing . 9
8 Terminals and terminations. 9
9 Constructional requirements . 9
10 Threaded parts and connections . 9
11 Creepage distances, clearances and distances through solid insulation . 9
12 Components . 10
13 Fault assessment on electronic circuits . 10
14 Moisture and dust resistance . 10
15 Electric strength and insulation resistance . 10
16 Heating . 10
17 Manufacturing deviation and drift . 10
18 Environmental stress . 10
19 Endurance . 11
20 Mechanical strength . 12
21 Resistance to heat, fire and tracking . 13
22 Resistance to corrosion . 13
23 Electromagnetic compatibility (EMC) requirements – Emission . 13
24 Normal operation . 13
25 Electromagnetic compatibility (EMC) requirements – Immunity . 13
26 Abnormal operation tests . 13
Annex H (normative) Requirements related to functional safety . 16
Annex AA (informative) Guide to the application of displacement electrical controls
within the scope of this standard . 19
Bibliography . 23
Figure 101 – Positions and travel distance of displacement electrical controls . 14
Figure 102 – Drawing for measuring the disconnection travel distance. 15
Figure 103 – An example of test fixture . 15
Figure AA.1 – Diagram of example 1 . 20
Figure AA.2 – Diagram of example 2 . 21
Table 1 – Required technical information and methods of providing these information . 7
IEC 60730-2-24:2026 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Automatic electrical controls -
Part 2-24: Particular requirements for displacement electrical controls
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) 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), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60730-2-24 has been prepared by IEC technical committee 72: Automatic electrical
controls. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
72/1506/CDV 72/1525/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 International Standard is English.
IEC 60730-2-24:2026 © IEC 2026
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 part 2-24 is intended to be used in conjunction with IEC 60730-1. It was established on the
basis of the sixth edition of that standard (2022). Consideration may be given to future editions
of, or amendments to, IEC 60730-1.
This part 2-24 supplements or modifies the corresponding clauses in IEC 60730-1, so as to
convert that publication into the IEC standard: Particular requirements for displacement
electrical controls.
Where this part 2-24 states "addition", "modification" or "replacement", the relevant requirement,
test specification or explanatory matter in Part 1 should be adapted accordingly.
Where no change is necessary, part 2-24 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.
In this publication:
– The following print types are used:
• requirements proper: in roman type;
• test specifications: in italic type;
• explanatory matter: in smaller roman type.
• Defined terms: bold type.
– Subclauses, notes or items which are additional to those in Part 1 are numbered starting
from 101, additional annexes are lettered AA, BB, etc.
A list of all parts of the IEC 60730 series, under the general title Automatic electrical controls,
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.
IEC 60730-2-24:2026 © IEC 2026
1 Scope
This clause of Part 1 is replaced by the following:
This part of IEC 60730 applies to automatic displacement electrical controls
– for use in, on, or in association with appliances for household and similar use;
NOTE 1 Through this document, the word "control" means "displacement electrical control".
EXAMPLE 1 Displacement electrical controls used in electrical pressure cookers with gross volume up to 25 l,
with working pressure over 4 kPa and less than 150 kPa.
– that are AC or DC powered controls with a rated voltage not exceeding 690 V AC or 600 V
DC;
– used in, on, or in association with equipment that use electricity;
– that are mechanically or electrically operated, responsive to change of position of point of
action.
NOTE 2 Requirements for manual switches not forming part of an automatic control are covered in IEC 61058-1-1.
This document applies to
– inherent safety of automatic electro-mechanical displacement electrical controls;
– functional safety of automatic electro-mechanical displacement electrical controls;
– the operating values, operating times, and operating sequences where such are associated
with equipment safety;
– displacement electrical controls having temperature sensing element(s), in which cases
additional requirements can be considered to be necessary. Requirements for temperature
sensing controls are included in IEC 60730-2-9.
This document specifies the requirements for construction, operation and testing of automatic
displacement electrical controls used in, on, or in association with equipment.
This document does not
– apply to automatic electronic controls;
– take into account the response value of an automatic action of a control, if such a response
value is dependent upon the method of mounting the control in the equipment. Where a
response value is of significant purpose for the protection of the user, or surroundings, the
value defined in the appropriate equipment standard or as determined by the manufacturer
applies.
NOTE 3 For more information about guidance to the application of displacement electrical controls, see
Annex AA.
2 Normative references
This clause of Part 1 is applicable.
IEC 60730-2-24:2026 © IEC 2026
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
3.2 Definitions of types of control according to purpose
Additional definitions:
3.2.101
displacement electrical control
automatic control where the displacement of point of action occurs through the displacement
of the container due to pressure change
Note 1 to entry: The container is an inner pot in the case of rice cooker.
Note 2 to entry: The displacement electrical control is considered an operating control with a type 2 action and
normally a protective control is provided on the end product to prevent a hazard, therefore there is no need to verify
the robustness of the self-locking mechanism.
3.2.102
position limiter
displacement electrical control which is intended to keep a position below one particular
value during normal operating conditions and which may have provision for setting by the end-
product manufacturer
Note 1 to entry: A position limiter can be manual reset type.
3.2.103
position regulator
cycling displacement electrical control, which is intended to keep a position between two
particular values under normal operating conditions and which may have provision for setting
by the end-product manufacturer
3.4 Definitions relating to disconnection and interruption
Additional definitions:
3.4.101
free position
P
f
initial state of the point of action of the displacement electrical control
Note 1 to entry: P is indicated as the position of 0 displacement in Figure 101.
f
Note 2 to entry: In general, free position is at located position.
3.4.102
disconnection position
P
d
position where the contact is disconnected from the circuit by the action mechanism under the
external force
Note 1 to entry: P is indicated in Figure 101.
d
3.4.103
self-locking position
P
s
position in which the self-locking mechanism just operates while the displacement can continue
to increase when the contact is disconnected
IEC 60730-2-24:2026 © IEC 2026
3.4.104
limit position
P
l
farthest position of the action mechanism of the displacement electrical control that can be
reached under external force where the action mechanism can recover to the free position
when the external force is released
Note 1 to entry: P is indicated in Figure 101.
l
3.4.105
reset position
P
r
position of the action mechanism where the disconnected contact will be re-connected when
the displacement is reduced
Note 1 to entry: P is indicated in Figure 101.
r
3.4.106
disconnection travel distance
distance between free position and disconnection position
3.4.107
self-locking travel distance
distance between disconnection position and self-locking position
3.4.108
limit travel distance
distance between free position and limit position
3.4.109
reset travel distance
distance between free position and reset position
3.4.110
point of action
point on the displacement electrical control at which the displacement is made
3.8 Definitions relating to component parts of controls
3.8.3
actuating member
Additional note:
Note 101 to entry: In Clause 19 of this document, the term "actuating member" includes that part which is
mechanically moved, pulled, pushed or turned to cause initiation of a control action.
4 General
This clause of Part 1 is applicable except as follows:
4.3.4.5.1
Additional paragraph:
For the displacement electrical controls designed with two or more sensing positions for
multiple functions, the relevant tests shall be applied to the individual sensing position, one at
a time.
IEC 60730-2-24:2026 © IEC 2026
5 Required technical information
This clause of Part 1 is applicable except as follows:
Table 1 – Required technical information and methods
of providing these information
Information Clause or subclause Method
Modifications:
3.2, 4.3.4.2, 4.3.4.5,
6 Purpose of control D or E
19.15, 3.2.101, 3.2.102
16 Temperature limits of mounting surfaces (T ) 16.5, C
s
19.3.1
Maximum temperature of mounting surface (T ) if it is more than
smax
20 K above T
19.15.101
max
19.15.102
NOTE 1 If the displacement electrical control is intended for
installation mode 2, the temperatu
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