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IEC 60730-2-9
Edition 4.0 2015-05
INTERNATIONAL
STANDARD
Automatic electrical controls –
Part 2-9: Particular requirements for temperature sensing controls
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IEC 60730-2-9
Edition 4.0 2015-05
INTERNATIONAL
STANDARD
Automatic electrical controls –
Part 2-9: Particular requirements for temperature sensing controls
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.120 ISBN 978-2-8322-2673-5
– 2 – IEC 60730-2-9:2015 © IEC 2015
CONTENTS
FOREWORD . 4
1 Scope and normative references . 7
2 Terms and definitions . 8
3 General requirements . 10
4 General notes on tests . 10
5 Rating . 11
6 Classification . 11
7 Information . 12
8 Protection against electric shock . 14
9 Provision for protective earthing . 14
10 Terminals and terminations . 14
11 Constructional requirements . 14
12 Moisture and dust resistance . 17
13 Electric strength and insulation resistance . 18
14 Heating . 18
15 Manufacturing deviation and drift . 19
16 Environmental stress . 20
17 Endurance . 20
18 Mechanical strength . 26
19 Threaded parts and connections . 28
20 Creepage distances, clearances and distances through solid insulation . 28
21 Resistance to heat, fire and tracking . 28
22 Resistance to corrosion . 28
23 Electromagnetic compatibility (EMC) requirements – Emission . 28
24 Components . 29
25 Normal operation . 29
26 Electromagnetic compatibility (EMC) requirements – Immunity . 29
27 Abnormal operation . 29
28 Guidance on the use of electronic disconnection . 29
Annexes . 30
Annex G (normative) Heat and fire resistance tests . 30
Annex H (normative) Requirements for electronic controls . 31
Annex J (normative) Requirements for thermistor elements and controls using
thermistors . 38
a, b
Annex AA (informative) Maximum manufacturing deviation and drift . 39
Annex BB (informative) Time factor . 40
Annex CC (informative) Number of cycles. 43
Annex DD (normative) Controls for use in agricultural confinement buildings. 44
Annex EE (informative) Guide to the application of temperature sensing controls within
the scope of IEC 60730-2-9 . 47
Bibliography . 63
Figure 101 – Impact tool . 16
Figure 102 – Aluminium cylinder for temperature change method . 26
Figure BB.1 – Determination of time factor in the case of a sudden temperature change . 41
Figure BB.2 – Determination of time factor in the case of a linear rise of test-bath
temperature . 42
Figure EE.1 – Thermostat . 55
Figure EE.2 – Self-resetting temperature limiter . 56
Figure EE.3 – Non-self-resetting temperature limiter . 57
Figure EE.4 – Self-resetting thermal cut-out . 58
Figure EE.5 – Manual reset thermal cut-out . 58
Figure EE.6 – Single operation device . 60
Figure EE.7 – Three-stage control system . 61
Table 1 – Required information and methods of providing information . 13
Table H.101 – Compliance criteria . 33
Table BB.1 – Method to determine and verify time factor values (see 11.101) . 42
Table EE.1 – Typical examples of the classification of temperature sensing controls in
accordance with IEC 60730-2-9 . 62
– 4 – IEC 60730-2-9:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC ELECTRICAL CONTROLS –
Part 2-9: Particular requirements for temperature sensing controls
FOREWORD
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International Standard IEC 60730-2-9 has been prepared by technical committee TC 72:
Automatic electrical controls.
The text of this standard is based on the following documents:
FDIS Report on voting
72/990/FDIS 72/998/RVD
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 fourth edition cancels and replaces the third edition published in 2008, and its
Amendment 1:2011. This edition constitutes a technical revision. This edition includes
alignment with the text of 60730-1
...