UL 60730-2-4
Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Thermal Motor Protectors for Motor-Compressors of Hermetic and Semi-Hermetic Type

DETAILS
Edition Number:1SCC Approved:--
Edition Date:2003-01-17DOD Approved: --
Price Code:FANSI Approved: --
Type:uliec

  • SCOPE

    1 Scope and normative references

    This clause of Part 1 is replaced by the following:

    1.1 This standard applies to the partial evaluation of thermal motor protectors as defined in IEC Publication 60730-1 for sealed (hermetic and semi-hermetic type) motor-compressors.

    A thermal motor protector is an integrated control which is dependent on its correct mounting and fixing in or on a motor and which can only be fully tested in combination with the relevant motor.

    Requirements concerning the testing of the combination of motor and thermal motor protector are given in IEC Publication 60335-2-34.

    This standard applies to thermal motor protectors for motor compressors using NTC or PTC thermistors, additional requirements for which are contained in Annex J.

    1.1DV Addition of the following Note to 1.1 of the part 2:

    NOTE – Requirements concerning the testing of the combination of hermetic motor-compressor and thermal motor protector are given in UL 60335-2-34.

    1.1.1 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 thermal motor protectors used in or on sealed (hermetic and semi-hermetic type) motor-compressors.

    This standard applies to thermal motor protectors for motor-compressors within the scope of IEC Publication 60335.

    Throughout this standard the word "equipment” means "appliance and equipment”.

    Thermal motor protectors for motor compressors 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 standard does not apply to thermal motor protectors designed exclusively for industrial applications.

    1.1.1DV Modification of 1.1.1 of the part 2:

    This standard applies to thermal motor protectors for motor-compressors within the scope of UL 60335-2-34.

    1.1.2 This standard does not apply to other means of motor protection.

    1.1.3 This standard does not apply to a manual device for opening the circuit.

    1.2 This standard applies to thermal motor protectors for use with electric motors with a rated voltage equal to or less than 690 V and a rated output of 11 kW or less.

    1.2DV Modification of 1.2 of the part 2:

    This standard applies to thermal motor protectors for use with hermetic motor-compressors with a rated voltage equal to or less than 600 V. No specific output power limits apply.

    1.3 This standard does not 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 household equipment standard or as determined by the manufacturer shall apply.

    1.5 Normative references

    This subclause of part 1 applies except as follows:

    Add the following IEC standards:

    1.5

    IEC 60269-1: 1998,  Low-voltage fuses – Part 1: General requirements

    IEC 60269-3: 1987,  Low-voltage fuses – Part 3: Supplementary requirements for fuses for use by unskilled persons (fuses mainly for household and similar applications)

    IEC 60335-2-34: 1999,  Safety of household and similar electrical appliances – Part 2: Particular requirements for motor-compressors

    1.5DV Addition to 1.5 of the part 2:

    The following UL Standard is quoted in this Standard:

    1.5DV

    UL 60335-2-34,  Household and Similar Electrical Appliances, Part 2: Particular Requirements for Motor-Compressors

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
    • UL Preface
    • UL Foreword
    • Deviations
    • IEC Foreword
    • IEC Preface
      • AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE – Part 2: Particular requirements for thermal motor protectors for motor-compressors of hermetic and semi-hermetic type
        • Section
          • 1 Scope and normative references
            • 1.5 Normative references
          • 2 Definitions
            • 2.6 Definitions of type of automatic action of a control according to test procedures
            • 2.13 Miscellaneous definitions
          • 3 General requirement
          • 4 General notes on tests
          • 5 Rating
          • 6 Classification
            • 6.4 According to features of automatic action
          • 7 Information
          • 8 Protection against electric shock
          • 9 Provision for protective earthing
          • 10 Terminals and terminations
            • 10.2 Terminals and terminations for internal conductors
          • 11 Constructional requirements
            • 11.3.4 Setting by the manufacturer
            • 11.4 Actions
          • 12 Moisture resistance
            • 12.2 Protection against humid conditions:
          • 13 Electric strength and insulation resistance
          • 14 Heating
          • 15 Manufacturing deviation and drift
          • 16 Environmental stress
          • 17 Endurance
            • 17.1 Limited short-circuit capability for thermal protectors classified under Sub-clause
          • 18 Mechanical strength
          • 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
          • 24 Components
          • 25 Normal operation
          • 26 Electromagnetic compatibility (EMC) requirements – Immunity
          • 27 Abnormal operation
          • 28 Guidance on the use of electronic disconnection
        • Annexes
        • Annex C Cotton Used for Mercury Switch Test
        • Annex D Resistance to Heat, Fire and Tracking
        • Annex E Circuit for Measuring Leakage Current
        • Annex H Requirements for electronic controls
        • Annex AA (informative) Endurance test for thermal motor protectors as components, i.e. not installed on a motor
          • AA.1 Purpose
          • AA.2 Endurance test of automatic action at accelerated rate
            • AA.2.1 Electrical conditions for tests
            • AA.2.2 Thermal conditions for the tests
            • AA.2.3 Manual and mechanical conditions for the test
            • AA.2.4 Test of automatic action at accelerated rate
            • AA.2.5 Evaluation of test results