prEN IEC 60730-2-24:2025

SLOVENSKI STANDARD
01-oktober-2025
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
Dispositifs de commande électrique automatiques - Partie 2-24: Exigences particulières
pour les dispositifs de commande électriques de déplacement
Ta slovenski standard je istoveten z: prEN IEC 60730-2-24:2025
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.

72/1506/CDV
COMMITTEE DRAFT FOR VOTE (CDV)

PROJECT NUMBER:
IEC 60730-2-24 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:

2025-09-05 2025-11-28
SUPERSEDES DOCUMENTS:
72/1458/CD, 72/1489/CC
IEC TC 72 : AUTOMATIC ELECTRICAL CONTROLS
SECRETARIAT: SECRETARY:
United States of America Ms Grace Roh
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee
Draft for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which
they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Automatic electrical controls –Part 2-24: Particular requirements for displacement electrical controls

PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee
positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose
without permission in writing from IEC.

IEC CDV 60730-2-24 © IEC 2025
1 CONTENTS
3 FOREWORD . 3
4 1 Scope . 5
5 2 Normative references . 5
6 3 Terms and definitions . 5
7 3.2 Definitions of types of control according to purpose . 6
8 3.2.101 6
9 3.2.102 6
10 3.4 Definitions relating to disconnection and interruption . 6
11 3.8 Definitions relating to component parts of controls . 7
12 3.8.3 7
13 4 General . 7
14 4.3.4.5 According to purpose . 7
15 5 Required technical information . 7
16 6 Protection against electric shock . 9
17 7 Provision for protective earthing . 9
18 8 Terminals and terminations . 10
19 9 Constructional requirements . 10
20 9.3.4 Setting by the manufacturer . 10
21 9.3.101 displacement electrical controls with integrated protective function . 10
22 9.4.3 Type 2 action . 10
23 10 Threaded parts and connections . 10
24 11 Creepage distances, clearances and distances through solid insulation . 10
25 12 Components . 10
26 13 Fault assessment on electronic circuits. 10
27 14 Moisture and dust resistance . 10
28 15 Electric strength and insulation resistance . 11
29 16 Heating . 11
30 17 Manufacturing deviation and drift . 11
31 18 Environmental stress . 11
32 19 Endurance . 11
33 19.15 Test for particular purpose controls . 12
34 20 Mechanical strength . 13
35 20.2 Impact resistance . 13
36 20.8 Flexing – test . 13
37 21 Resistance to heat, fire and tracking . 13
38 22 Resistance to corrosion . 13
39 23 Electromagnetic compatibility (EMC) requirements – Emission . 13
40 24 Normal operation . 13
41 25 Electromagnetic compatibility (EMC) requirements – Immunity . 13
42 26 Abnormal operation tests . 13
43 Annex H (normative) Requirements related to functional safety . 17
44 H.17 Manufacturing deviation and drift . 17
IEC CDV 60730-2-24 © IEC 2025
45 H.25 Electromagnetic compatibility (EMC) requirements – Immunity . 18
46 Annex AA (informative) Guide to the application of displacement electrical controls
47 within the scope of this standard . 19
48 AA.1 General . 19
49 AA.2 Operational features . 19
50 AA.3 Installation specification . 19
51 AA.4 Guidance to choose a proper displacement electrical control for a specific
52 application . 21
53 Bibliography . 22
55 Figure 101 – Positions and travel distance of displacement electrical control(s) . 14
56 Figure 102 – Drawing for measuring the disconnection travel distance . 15
57 Figure 103 – An example of test fixture . 16
58 Figure AA.1 – Diagram of Example 1 . 20
59 Figure AA.2 – Diagram of Example 2 . 21
61 Table 1– Required technical information and methods of providing these information . 6
IEC CDV 60730-2-24 © IEC 2025
63 INTERNATIONAL ELECTROTECHNICAL COMMISSION
64 ____________
66 AUTOMATIC ELECTRICAL CONTROLS –
68 Part 2-24: Particular requirements for displacement electrical controls
70 FOREWORD
71 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
72 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
73 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
74 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
75 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
76 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
77 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
78 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
79 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
80 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
81 consensus of opinion on the relevant subjects since each technical committee has representation from all
82 interested IEC National Committees.
83 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
84 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
85 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
86 misinterpretation by any end user.
87 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
88 transparently to the maximum extent possible in their national and regional publications. Any divergence between
89 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
90 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
91 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
92 services carried out by independent certification bodies.
93 6) All users should ensure that they have the latest edition of this publication.
94 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
95 members of its technical committees and IEC National Committees for any personal injury, property damage or
96 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
97 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
98 Publications.
99 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
100 indispensable for the correct application of this publication.
101 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
102 rights. IEC shall not be held responsible for identifying any or all such patent rights.
103 IEC 60730-2-24 has been prepared by IEC technical committee 72: AUTOMATIC ELECTRICAL
104 CONTROLS. It is an International Standard.
105 The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
107 Full information on the voting for its approval can be found in the report on voting indicated in
108 the above table.
109 The language used for the development of this International Standard is English [change
110 language if necessary].
111 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
112 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
113 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
114 described in greater detail at www.iec.ch/publications.
IEC CDV 60730-2-24 © IEC 2025
115 A list of all parts of the IEC 60730 series, under the general title: AUTOMATIC ELECTRICAL
116 CONTROL, can be found on the IEC website.
117 This part 2-24is intended to be used in conjunction with IEC 60730-1. It was established on the basis
118 of the sixth edition of that standard (2022. Consideration may be given to future editions of, or
119 amendments to, IEC 60730-1.
120 This part 2-24supplements or modifies the corresponding clauses in IEC 60730-1, so as to convert
121 that publication into the IEC standard: Particular requirements for displacement electrical controls.
122 Where this part 2-24states "addition", "modification" or "replacement", the relevant requirement, test
123 specification or explanatory matter in part 1 should be adapted accordingly.
124 Where no change is necessary part 2-24indicates that the relevant clause or subclause applies.
125 In the development of a fully international standard it has been necessary to take into consideration
126 the differing requirements resulting from practical experience in various parts of the world and to
127 recognize the variation in national electrical systems and wiring rules.
128 The reader's attention is drawn to the fact that Annex AA and Annex BB list all of the "in-some-
129 country" clauses on differing practices of a less permanent nature relating to the subject of this
130 document.
131 In this publication:
132 1) The following print types are used:
133 – requirements proper: in roman type;
134 – test specifications: in italic type;
135 – explanatory matter: in smaller roman type.
136 – Defined terms: bold type.
137 2) Subclauses, notes or items which are additional to those in Part 1 are numbered starting
138 from 101, additional annexes are lettered AA, BB, etc.
139 The committee has decided that the contents of this document will remain unchanged until the
140 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
141 specific document. At this date, the document will be
142 reconfirmed,
143 withdrawn,
144 replaced by a revised edition, or
145 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.
IEC CDV 60730-2-24 © IEC 2025
149 AUTOMATIC ELECTRICAL CONTROLS –
151 Part 2-24: Particular requirements for displacement electrical controls
154 1 Scope
155 This clause of Part 1 is replaced by the following:
156 This document applies to automatic displacement electrical controls
157 •for use in, on, or in association with appliances for household and similar use;
159 NOTE 1 Through this document, the word”control” means “displacement electrical control”.
160 EXAMPLE 101 Displacement electrical controls used in electrical pressusre cookers with gross volume up to
161 25litres, with working pressure over 4 kPa and less than 150 kPa.
162 • that are AC or DC powered controls with a rated voltage not exceeding 690 V AC or 600 V
163 DC;
164 • used in, on, or in association with equipment that use electricity;
165 • that are mechanically or electrically operated, responsive to change of position of point of
166 action.
167 NOTE 2 Requirements for manual switches not forming part of an automatic control are covered in IEC 61058-1-1.
168 This document applies to
169 - inherent safety of automatic electro-mechanical displacement electrical controls;
170 - functional safety of automatic electro-mechanical displacement electrical controls;
171 - the operating values, operating times, and operating sequences where such are
172 associated with equipment safety;
173 - displacement electrical controls having temperature sensing element(s), in which
174 cases additional requirements can be considered to be necessary. Requirements for
175 temperature sensing controls are included in IEC 60730-2-9.
176 This document specifies the requirements for construction, operation and testing of automatic
177 displacement electrical controls used in, on, or in association with equipment.
178 This document does not:
179 • apply to automatic electronic controls
180 • take into account the response value of an automatic action of a control, if such a response
181 value is dependent upon the method of mounting the control in the equipment. Where a
182 response value is of significant purpose for the protection of the user, or surroundings, the
183 value defined in the appropriate equipment standard or as determined by the manufacturer
184 shall apply.
186 NOTE 101 For more information about guidance to the application of displacement electrical controls see Annex
187 AA.
188 2 Normative references
189 This clause of Part 1 is applicable.
190 3 Terms and definitions
191 This clause of Part 1 is applicable except as follows:
IEC CDV 60730-2-24 © IEC 2025
192 3.2 Definitions of types of control according to purpose
193 Add the following new definitions:
194 3.2.101
195 displacement electrical controls
196 automatic control where the displacement of point of action occurs through the displacement
197 of the container due to pressure change
198 NOTE 1 to entry The container is an inner pot in the case of rice cooker.
199 NOTE 2 to entry The displacement electrical control is considered an operating control with a type 2 action
200 and normally a protective control is provided on the end product to prevent a hazard, therefore there is no need to
201 verify the robustness of the self-locking mechanism.
202 3.2.102
203 position limiter
204 displacement electrical control which is intended to keep a position below one particular
205 value during normal operating conditions and which may have provision for setting by the end-
206 product manufacturer.
207 NOTE 1 to entry A position limiter can be manual reset type.
208 3.2.103
209 position regulator
210 cycling displacement electrical control, which is intended to keep a position between two
211 particular values under normal operating conditions and which may have provision for setting
212 by the end-product manufacturer.
213 3.4 Definitions relating to disconnection and interruption
214 Add the following new definitions:
215 3.4.101
216 free position P
f
217 initial state of the point of action of the displacement electrical control
218 NOTE 1 to entry P is indicated as the position of 0 displacement in Figure 101
f
219 NOTE 2 to entry  In general, free position is at located position.
220 3.4.102
221 disconnection position P
d
222 position where the contact is disconnected from the circuit by the action mechanism under the
223 external force
224 NOTE 1 to entry  P is indicated in Figure 101
d
225 3.4.103
226 self-locking position P
s
227 position in which the self-locking mechanism just operates while the displacement can continue
228 to increase when the contact is disconnected
229 3.4.104
230 limit position P
l
231 farthest position of the action mechanism of the displacement electrical control that can be
232 reached under external force where the action mechanism can recover to the free position
233 when the external force is released
234 NOTE 1 to entry P is indicated in Figure 101.
l
IEC CDV 60730-2-24 © IEC 2025
235 3.4.105
236 reset position P
r
237 position of the action mechanism where the disconnected contact will be re-connected when
238 the displacement is reduced
239 NOTE 1 to entry Pr is indicated in Figure 101.

240 3.4.106
241 disconnection travel distance
242 distance between free position and disconnection position
243 3.4.107
244 self-locking travel distance
245 distance between disconnection position and self-lock position
246 3.4.108
247 limit travel distance
248 distance between free position and limit position
249 3.4.109
250 reset travel distance
251 distance between free position and reset position
252 3.4.110
253 point of action
254 point on the displacement electrical control at which the displacement is made
255 3.8 Definitions relating to component parts of controls
256 3.8.3
257 actuating member
258 Add, to the definition, the following note:
259 NOTE 101 to entry In Clause 19 of this document, the term "actuating member" includes that part which is
260 mechanically moved, pulled, pushed or turned to cause initiation of a control action.
261 4 General
262 This clause of Part 1 is applicable except as follows:
263 4.3.4.5 According to purpose
264 Addition:
265 For the displacement electrical controls designed with two or more sensing positions for
266 multiple functions, the relevant tests shall be applied to the individual sensing position, one at
267 a time.
268 5 Required technical information
269 This clause of Part 1 is applicable except as follows:
270 Table 1– Required technical information and methods of providing these
271 information
Clause or
Information Method
subclause
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
IEC CDV 60730-2-24 © IEC 2025
Clause or
Information Method
subclause
16 16.5, C
Temperature limits of mounting surfaces (T )
s
19.3,1
19.15.101
Maximum temperature of mounting surface (T ) if it is more 19.15.102
smax
AA.1
than 20K above T
max
NOTE If the displacement electrical control is intended for
Installation MODE 2, the temperature of mounting post as shown in
T
Figure AA.2 is taken as s.
18 Not applicable
19 Not applicable
20 Number of automatic cycles (A) for each automatic action. 13.1.3.3,
Table 14,
19.7.6,
- Minimum 6 000 cycles for disconnection action
19.8.4,
19.15.101
- Minimum 30 cycles for self-locking mechanmism
NOTE For controls having more than one automatic action, a different
value can be declared for each.
33 Type 2 action 3.4.106 D or
...