UL 60730-2-9
Standard for Automatic Electrical Controls - Part 2-9: Particular Requirements for Temperature Sensing Controls

Edition Number:4SCC Approved:--
Edition Date:2017-02-14DOD Approved: --
Price Code:FANSI Approved: 2017-02-14


    1 Scope and normative references

    This clause of part 1 is applicable except as follows:

    1.1 Scope


    This part of IEC 60730 applies to automatic electrical temperature SENSING CONTROLS for use in, on or in association with equipment, including ELECTRICAL CONTROLS for heating, air-conditioning and similar applications. The equipment may use electricity, gas, oil, solid fuel, solar thermal energy, etc., or a combination thereof.

    NOTE Throughout this standard, the word "equipment" includes "appliance" and "control system".

    This standard is applicable to automatic electrical temperature SENSING CONTROLS forming part of a building automation CONTROL SYSTEM within the scope of ISO 16484.

    This standard also applies to automatic electrical temperature SENSING CONTROLS for equipment that may be used by the public, such as equipment intended to be used in shops, offices, hospitals, farms and commercial and industrial applications.

    This standard does not apply to automatic electrical temperature SENSING CONTROLS intended exclusively for industrial process applications, unless explicitly mentioned in the relevant equipment standard.



    This standard applies to the inherent safety, to the OPERATING VALUES, OPERATING TIMES, and OPERATING SEQUENCES where such are associated with equipment safety, and to the testing of automatic electrical temperature SENSING CONTROL devices used in, or in association with, equipment.


    This standard is also applicable to the functional safety of low complexity safety-related temperature SENSING CONTROLS and SYSTEMS.



    This standard also applies to the electrical safety of temperature sensing controls with nonelectrical outputs such as refrigerant flow and gas CONTROLS.

    1.1.3 Not applicable.



    This standard applies to MANUAL CONTROLS when such are electrically and/or mechanically integral with automatic temperature SENSING CONTROLS.

    NOTE Requirements for manual switches not forming part of an AUTOMATIC CONTROL are contained in IEC 61058-1.



    This standard applies to a.c. or d.c. powered temperature SENSING CONTROLS with a rated voltage not exceeding 690 V a.c. or 600 V d.c.



    This standard does not take into account the RESPONSE VALUE of an AUTOMATIC ACTION of a temperature SENSING CONTROL, if such a RESPONSE VALUE is dependent upon the method of mounting it 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 shall apply.



    This standard applies also to temperature SENSING CONTROLS incorporating ELECTRONIC DEVICES, requirements for which are contained in Annex h and to temperature SENSING CONTROLS using NTC THERMISTORS or PTC THERMISTORS, requirements for which are contained in Annex j.

    Additional subclause:

    1.1.101 This standard applies to SINGLE OPERATION DEVICES as defined in this standard.

    1.1.101DV Modify text of 1.1.101 with the following:

    This standard applies to single operation devices, thermostats for drip-type coffee makers, self-heating thermal protectors (SHTP) for recessed lighting fixtures, and Fan/Heat sequencers as defined in this standard.

    1.2 Normative references


    IEC 60216-1:2013,  Electrical insulating materials – Thermal endurance properties – Part 1: Ageing procedures and evaluation of test results

    IEC 60691,  Thermal links – Requirements and application guide

    IEC 60730-2-4,  Automatic electrical controls for household and similar use – Part 2-4: Particular requirements for thermal motor protectors for motor-compressors of hermetic and semi-hermetic type

    Expand All

    • Cover
    • Transmittal
    • Table of Contents
    • UL Preface
    • Deviations
    • IEC Foreword
      • AUTOMATIC ELECTRICAL CONTROLS – Part 2-9: Particular requirements for temperature sensing controls
        • 1 Scope and normative references
          • 1.1 Scope
          • 1.2 Normative references
        • 2 Terms and definitions
          • 2.2 Definitions of types of control according to purpose
          • 2.3 Definitions relating to the function of controls
          • 2.5 Definitions of types of control according to construction
        • 3 General requirements
        • 4 General notes on tests
          • 4.1 Conditions of test
          • 4.2 Samples required
        • 5 Rating
        • 6 Classification
          • 6.4 According to features of automatic action
          • 6.7 According to ambient temperature limits of the switch head
          • 6.15 According to construction
        • 7 Information
          • 7.2 Methods of providing information
        • 8 Protection against electric shock
        • 9 Provision for protective earthing
        • 10 Terminals and terminations
        • 11 Constructional requirements
          • 11.1 Materials
          • 11.3 Actuation and operation
          • 11.4 Actions
          • 11.6 Mounting of controls
          • 11.101 Time factor
        • 12 Moisture and dust resistance
          • 12.101 Refrigeration controls
        • 13 Electric strength and insulation resistance
        • 14 Heating
        • 15 Manufacturing deviation and drift
          • 15.5.6CDV.1 Fan/heat sequencer – Initial time-calibration test I
          • 15.5.6DDV.1 Fan/heat sequencer – Initial time-calibration test II
          • 15.5.6EDV.1 The following is applicable to controls classified under .
        • 16 Environmental stress
        • 17 Endurance
          • 17.15 Single operation devices
          • 17.16 Test for particular purpose controls
          • 17.101 Type 2.P cycling test
        • 18 Mechanical strength
          • 18.101 Push-and-turn or pull-and-turn actuation
          • 18.102 Parts containing liquid metal
        • 19 Threaded parts and connections
        • 20 Creepage distances, clearances and distances through solid insulation
        • 21 Resistance to heat, fire and tracking
        • 22 Resistance to corrosion
        • 23 Electromagnetic compatibility (EMC) requirements – Emission
          • 23.101.1 Test conditions
          • 23.101.2 Test procedure
        • 24 Components
        • 25 Normal operation
        • 26 Electromagnetic compatibility (EMC) requirements – Immunity
        • 27 Abnormal operation
          • 27.101DV.1 Overvoltage
          • 27.102DV.1 Thermal Cycling
          • 27.103DV.1 Short Circuit
        • 28 Guidance on the use of electronic disconnection
    • Annexes
    • Annex G (normative) Heat and fire resistance tests
    • Annex H (normative) Requirements for electronic controls
    • Annex J(normative) Requirements for thermistor elements and controls using thermistors
    • Annex AA (informative) Maximum manufacturing deviation and drift
    • Annex BB (informative) Time factor
    • Annex CC (informative) Number of cycles
    • Annex DD (normative) Controls for use in agricultural confinement buildings
    • Annex EE (informative) Guide to the application of temperature sensing controls within the scope of IEC 60730-2-9
    • Bibliography