UL 60730-1
Automatic Electrical Controls for Household and Similar Use - Part 1: General Requirements

DETAILS
Edition Number:4SCC Approved:--
Edition Date:2009-10-19DOD Approved: --
Price Code:HANSI Approved: 2013-03-29
Type:uliec

  • SCOPE

    1 Scope and normative references

    1.1 In general, this international standard applies to automatic electrical controls for use in, on, or in association with equipment for household and similar use, including 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.

    1.1.1 This international 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 control devices used in, or in association with, household or similar equipment.

    This standard is also applicable to controls for building automation systems within the scope of ISO 16484-2.

    This standard is also applicable to controls for appliances within the scope of IEC 60335-1.

    Throughout this Standard the word "equipment" means "appliance and equipment."

    This standard does not apply to automatic electrical controls intended exclusively for industrial applications unless explicitly mentioned in the relevant part 2.

    This standard is also applicable to individual controls utilized as part of a control system or controls which are mechanically integral with multifunctional controls having non-electrical outputs.

    Automatic electrical controls for equipment 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.

    See also annex j.

    This standard is also applicable to relays when used as controls for IEC 60335 appliances. Additional requirements for the safety and operating values of relays when used as controls for IEC 60335 appliances are contained in Annex u.

    These requirements are referred to by IEC 61810-1, Scope.

    This standard is intended to be used for the testing of any stand-alone relay which is intended to be used as a control of an appliance according to IEC 60335-1. It is not intended to be used for any other stand-alone relay, or to replace the IEC 61810 series of standards.

    1.1.1DV.1 Modification of 1.1.1 by adding the following after the first paragraph:

    In IEC terminology, "safety" is defined as an acceptable level of risk. This is consistent with the intention of UL requirements to reduce the risk of fire, shock or injury to persons.

    1.1.1DV.2 Modification of the fourth paragraph of 1.1.1 by adding the following text:

    This standard also applies to automatic ELECTRICAL CONTROLS used in commercial and industrial applications where no other standard currently covers the product or when specifically restricted within the scope of a relevant part 2 standard.

    1.1.2 This Standard applies to automatic electrical controls, mechanically or electrically operated, responsive to or controlling such characteristics as temperature, pressure, passage of time, humidity, light, electrostatic effects, flow, or liquid level, current, voltage, acceleration or combinations thereof.

    1.1.3 This Standard applies to starting relays, which are a specific type of automatic electrical control, intended to switch the starting winding of a motor. Such controls may be built into, or be separate from, the motor.

    1.1.4 This Standard applies to manual controls when such are electrically and/or mechanically integral with automatic controls.

    Requirements for manual switches not forming part of an automatic control are contained in IEC 61058-1.

    1.2 This standard applies to controls with a rated voltage not exceeding 690 V and with a rated current not exceeding 63 A.

    1.2DV.1 Modification of 1.2 by adding the following text:

    The maximum voltage is 600 V. The maximum current is unlimited.

    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.

    1.4 This standard applies also to controls incorporating electronic devices, requirements for which are contained in annex h.

    This standard applies also to controls using NTC or PTC thermistors, requirements for which are contained in annex j.

    1.5 Normative references

    The following referenced documents are indispensable for the application 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.

    1.5

    IEC 60038,  IEC standard voltages

    IEC 60065: 2001,  Audio, video and similar electronic apparatus – Safety requirements2)Amendment 1 (2004)

    IEC 60068-2-75,  Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests

    IEC 60085: 2007,  Electrical insulation – Thermal evaluation and designation

    IEC 60099-1, Surge arresters – Part 1: Non-linear resistor type gapped arresters for a.c. systems

    IEC 60112: 2003,  Method for the determination of the proof and the comparative tracking indices of solid insulating materials

    IEC 60127-1: 2006,  Miniature fuses – Part 1: Definitions for miniature fuses and general requirements for miniature fuse-links

    IEC 60227-1,  Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V – Part 1: General requirements

    IEC 60245-1,  Rubber insulated cables – Rated voltages up to and including 450/750 V – Part 1: General requirements

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

    IEC 60335-1: 2006,  Household and similar electrical appliances – Safety – Part 1: General requirements3)Amendment 1 (2004)Amendment 2 (2006)

    IEC 60364 (all parts),  Low-voltage electrical installations

    IEC 60384-14,  Fixed capacitors for use in electronic equipment – Part 14: Sectional specification: Fixed capacitors for electromagnetic suppression and connection to the supply mains

    IEC 60384-16,  Fixed capacitors for use in electronic equipment – Part 16: Sectional specification – Fixed metallized polypropylene film dielectric d.c. capacitors

    IEC 60384-17,  Fixed capacitors for use in electronic equipment – Part 17: Sectional specification – Fixed metallized polypropylene film dielectric a.c. and pulse capacitors

    IEC 60417 (all parts),  Graphical symbols for use on equipment

    IEC 60423,  Conduit systems for cable management – Outside diameters of conduits for electrical installations and threads for conduits and fittings

    IEC 60529: 1989,  Degrees of protection provided by enclosures (IP code)4)Amendment 1 (1999)

    IEC 60539 (all parts),  Directly heated negative temperature coefficient thermistors

    IEC 60664-1: 2007,  Insulation coordination for equipment within low-voltage systems – Part 1: Principles, requirements and tests

    IEC 60664-3: 2003,  Insulation coordination for equipment within low-voltage systems – Part 3: Use of coatings, potting or moulding for protection against pollution

    IEC 60695-2-10,  Fire Hazard testing – Part 2-10: Glowing/hot-wire based test methods – Glow-wire apparatus and common test procedure

    IEC 60695-2-11: 2000,  Fire Hazard testing – Part 2-11: Glowing/hot-wire based test methods – Glow-wire flammability test method for end-products

    IEC 60695-10-2,  Fire hazard testing – Part 10-2: Abnormal heat – Ball pressure test

    IEC 60738-1,  Thermistors – Directly heated positive step-function temperature coefficient – Part 1: Generic specification

    IEC 60738-1-1,  Thermistors – Directly heated positive step-function temperature coefficient – Part 1-1: Blank detail specification – Current limiting application – Assessment level EZ

    IEC 60947-1:2007,  Low-voltage switchgear and controlgear – Part 1: General rules

    IEC 60998-2-2,  Connecting devices for low-voltage circuits for household and similar purposes – Part 2-2: Particular requirements for connecting devices as separate entities with screwless-type clamping units

    IEC 60998-2-3:2002,  Connecting devices for low-voltage circuits for household and similar purposes – Part 2-3: Particular requirements for connecting devices as separate entities with insulation-piercing clamping units

    IEC 61000 (all parts),  Electromagnetic compatibility (EMC)

    IEC 61000-3-2:2005,  Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic current emissions (equipment input current ≤ 16 A per phase)Amendment 1 (2008)Amendment 2(2009)5)

    IEC 61000-3-3:2008,  Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤ 16 A per phase and not subject to conditional connection

    IEC 61000-4-2:2008,  Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement techniques – Electrostatic discharge immunity test

    IEC 61000-4-3:2008,  Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test

    IEC 61000-4-4: 2004,  Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement techniques – Electrical fast transient/burst immunity test.

    IEC 61000-4-5: 2005,  Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement techniques – Surge immunity test

    IEC 61000-4-6:2008,  Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement techniques – Immunity to conducted disturbances, induced by radio-frequency fields

    IEC 61000-4-8:1993,  Electromagnetic compatibility (EMC) – Part 4-8: Testing and measurement techniques – Power frequency magnetic field immunity test6)

    IEC 61000-4-11: 2004,  Electromagnetic compatibility (EMC) – Part 4-11: Testing and measuring techniques – Voltage dips, short interruptions and voltage variations immunity tests

    IEC 61000-4-13: 2002,  Electromagnetic compatibility (EMC) – Part 4-13: Testing and measuring techniques – Harmonics and interharmonics including mains signaling at a.c. power port, low frequency immunity tests7)Amendment 1 (2009)

    IEC 61000-4-28: 1999,  Electromagnetic compatibility (EMC) – Part 4-28: Testing and measuring techniques – Variation of power frequency, immunity tests8)Amendment 1 (2001)Amendment 2(2009)

    IEC 61058-1,  Switches for appliances – Part 1: General requirements

    IEC 61210,  Connecting devices – Flat quick-connect terminations for electrical copper conductors – Safety requirements

    IEC 61249 (all parts),  Materials for printed boards and other interconnecting structures

    IEC 61558-2-6,  Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V – Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers

    IEC 61558-2-16,  Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V – Part 2-16: Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units

    IEC 62326 (all parts),  Printed boards

    CISPR 11:2009,  Industrial, scientific and medical equipment – Radio-frequency disturbance characteristics – Limits and methods of measurement

    CISPR 14-1:2005,  Electromagnetic compatibility – Requirements for household appliances, electric tools and similar apparatus – Part 1: Emission9)Amendment 1 (2008)

    CISPR 22:2008,  Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement

    ISO 16484-2,  Building automation and control systems (BACS) – Part 2: Hardware

    2)There exists a consolidated edition 7.1 including IEC 60065:2001 and its Amendment 1 (2004).

    3)There exists a consolidated edition 4.2 including IEC 60335-1:2001 and its Amendments 1 (2004) and 2 (2006).

    4)There exists a consolidated edition 2.1 including IEC 60529:1989 and its Amendment 1 (1999).

    5)There exists a consolidated edition 3.2 including IEC 61000-3-2:2005 and its Amendments 1 (2008) and 2 (2009).

    6)There exists a consolidated edition 1.1 including IEC 61000-4-8:1993 and its Amendment 1 (2000).

    7)There exists a consolidated edition 1.1 including IEC 61000-4-13:2002 and its Amendment 1 (2009).

    8)There exists a consolidated edition 1.1 including IEC 61000-4-28:1999 and its Amendments 1 (2001) and 2 (2009).

    9)There exists a consolidated edition 5.1 including CISPR 14-1:2005 and its Amendment 1 (2008).

    1.5DV Addition of the following to 1.5:

    The following UL Standards are referenced in this Standard:

    1.5DV

    UL 20 Switches, General Use Snap

    UL 44 Wires and Cables, Thermoset-Insulated

    UL 50 Enclosures for Electrical Equipment, Non-Environmental Considerations

    UL 50E Enclosures for Electrical Equipment, Environmental Considerations

    UL 62 Flexible Cords and Cables

    UL 83 Wire and Cables, Thermoplastic-Insulated

    UL 94 Plastic Materials for Parts in Devices and Appliances, Tests for Flammability of

    UL 157 Gaskets and Seals

    UL 224 Tubing, Extruded Insulated

    UL 248 series Low-Voltage Fuses

    UL 310 Terminals, Electrically Quick-Connect

    UL 372 Automatic Electrical Controls for Household and Similar Use – Part 2: Particular Requirements for Burner Ignition Systems and Components

    UL 429 Valves, Electrically-Operated

    UL 467 Grounding and Bonding Equipment

    UL 486 series Wire Connectors

    UL 498 Attachment Plugs and Receptacles

    UL 508 Industrial Control Equipment

    UL 510 Tape, Polyethylene, and Rubber Insulating Tape

    UL 514A Metallic Outlet Boxes

    UL 514B Fittings, Conduit, Tubing and Cable

    UL 514C Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers

    UL 635 Insulating Bushings

    UL 746A Polymeric Materials – Short Term Property Evaluations

    UL 746B Polymeric Materials – Long Term Property Evaluations

    UL 746C Polymeric Materials – Use in Electrical Equipment Evaluations

    UL 746D Polymeric Materials – Fabricated Parts

    UL 796 Printed-Wiring Boards

    UL 810 Capacitors

    UL 817 Cord Sets and Power-Supply Cords

    UL 863 Time-Indicating and -Recording Appliance

    UL 917 Switches, Clock Operated

    UL 969 Marking and Labeling Systems

    UL 1004-1 Rotating Electrical Machines – General Requirements

    UL 1054 Switches, Special Use

    UL 1059 Terminal Blocks

    UL 1077 Protectors, Supplementary, for Use in Electrical Equipment

    UL 1310 Class 2 Power Units

    UL 1414 Capacitors, and Suppressors for Radio- and Television-Type Appliances

    UL 1434 Thermistor-type Devices

    UL 1441 Sleeving, Coated Electrical

    UL 1446 Systems of Insulating Materials – General

    UL 1998 Software in Programmable Components

    UL 2111 Overheating Protection for Motors

    UL 4248 Fuseholders series

    UL 5085-1 Low Voltage Transformers – Part 1: General Requirements

    UL 5085-2 Low Voltage Transformers – Part 2: General Purpose Transformers

    UL 5085-3 Low Voltage Transformers – Part 3: Class 2 and Class 3 Transformers

    UL 60691 Thermal-Links – Requirements and Application Guide

    UL 60950 Information Technology Equipment Safety – Part 1: General Requirements

    UL 61058-1 Switches for Appliances – Part 1: General Requirements

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
    • UL Preface
    • Deviations
    • IEC Foreword
    • IEC Preface
      • AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE – Part 1: General requirements
        • 1 Scope and normative references
          • 1.5 Normative references
        • 2 Definitions
          • 2.1 Definitions relating to ratings, voltages, currents, frequencies, and wattages
          • 2.2 Definitions of types of control according to purpose
          • 2.3 Definitions relating to the function of controls
          • 2.4 Definitions relating to disconnection and interruption
          • 2.5 Definitions of types of control according to construction
          • 2.6 Definitions of type of AUTOMATIC ACTION of a control according to test procedure
          • 2.7 Definitions relating to protection against electric shock
          • 2.8 Definitions relating to component parts of controls
          • 2.9 Definitions of types of terminals and TERMINATIONS of controls
          • 2.10 Definitions relating to the connections to controls
          • 2.11 Definitions relating to the performance of TYPE 2 ACTIONS
          • 2.12 Definitions relating to the requirements for CREEPAGE DISTANCES and CLEARANCES
          • 2.13 Miscellaneous definitions
          • 2.14 Definitions relating to manufacturer and USER
          • 2.15 Definition pertaining to thermistors
          • 2.16 Definitions relating to the structure of controls using software
          • 2.17 Definitions relating to error avoidance in controls using software
          • 2.18 Definitions relating to fault/error control techniques for controls using software
          • 2.19 Definitions relating to memory tests for controls using software
          • 2.20 Definitions of software terminology – General
          • 2.21 Definitions relating to classes of control functions
        • 3 General requirement
        • 4 General notes on tests
          • 4.1 Conditions of test
          • 4.2 Samples required
          • 4.3 Instructions for test
        • 5 Rating
          • 5.1 Maximum RATED VOLTAGE
          • 5.2 Maximum RATED CURRENT
          • 5.3 Compliance
        • 6 Classification
          • 6.1 According to nature of supply
          • 6.2 According to type of load to be controlled by each circuit of the control
          • 6.3 According to their purpose
          • 6.4 According to features of AUTOMATIC ACTION
          • 6.5 According to the degree of protection and control POLLUTION degree
          • 6.6 According to method of connection
          • 6.7 According to ambient temperature limits of the SWITCH HEAD
          • 6.8 According to protection against electric shock
          • 6.9 According to circuit disconnection or interruption:
          • 6.10 According to number of cycles of ACTUATION (M) of each MANUAL ACTION
          • 6.11 According to number of automatic cycles (A) of each AUTOMATIC ACTION
          • 6.12 According to temperature limits of the mounting surface of the control
          • 6.13 According to value of proof tracking index (PTI) for the insulation material used
          • 6.13DV.1 According to value of comparative tracking index (CTI) for the insulation material used
          • 6.14 According to period of electrical stress across insulating parts supporting LIVE PARTS and between LIVE PARTS and earthed metal
          • 6.15 According to construction:
          • 6.16 According to ageing requirements (Y) of the equipment in which, or with which, the control is intended to be used
          • 6.17 According to use of the thermistor
          • 6.18 According to classes of control functions
        • 7 Information
          • 7.1 General requirements
          • 7.2 Methods of providing information
          • 7.3 Class II symbol
          • 7.4 Additional requirements for marking
        • 8 Protection against electric shock
          • 8.1 General requirements
          • 8.2 ACTUATING MEMBERS and ACTUATING MEANS
          • 8.3 Capacitors
          • 8.4 COVERS and uninsulated live or hazardous parts
        • 9 Provision for protective earthing
          • 9.1 General requirements
          • 9.3 Adequacy of earth connections
          • 9.4 Corrosion resistance
          • 9.5 Other requirements
        • 10 Terminals and TERMINATIONS
          • 10.1 Terminals and TERMINATIONS for external copper conductors
          • 10.2 Terminals and TERMINATIONS for INTERNAL CONDUCTORS
          • 10.3 Terminals and TERMINATIONS for INTEGRATED CONDUCTORS
        • 11 Constructional requirements
          • 11.1 Materials
          • 11.2 Protection against electric shock
          • 11.3 ACTUATION and OPERATION
          • 11.4 Actions
          • 11.5 Openings in enclosures
          • 11.6 Mounting of controls
          • 11.7 Attachment of cords
          • 11.8 Size of cords – non-detachable
          • 11.9 Inlet openings
          • 11.9DV.1 Independently mounted
          • 11.10 Equipment inlets and socket-outlets
          • 11.11 Requirements during mounting, maintenance and SERVICING
          • 11.12 Controls using software
          • 11.13 Protective controls and components of protective control systems
        • 12 Moisture and dust resistance
          • 12.1 Protection against ingress of water and dust
          • 12.2 Protection against humid conditions
        • 13 Electric strength and insulation resistance
          • 13.1 Insulation resistance
          • 13.2 Electric strength
        • 14 Heating
        • 15 MANUFACTURING DEVIATION and DRIFT
        • 16 Environmental stress
          • 16.2 Environmental stress of temperature
        • 17 Endurance
          • 17.1 General requirements
          • 17.2 Electrical conditions for the test
          • 17.3 Thermal conditions for the tests
          • 17.4 Manual and mechanical conditions for the tests
          • 17.5 Dielectric strength requirements
          • 17.6 Ageing test
          • 17.7 Overvoltage test (or overload test in Canada, the USA, and all countries using an overload test) of AUTOMATIC ACTION at accelerated rate
          • 17.8 Test of AUTOMATIC ACTION at accelerated rate
          • 17.9 Test of AUTOMATIC ACTION at slow rate
          • 17.10 Overvoltage test (or overload test in Canada, the USA, and all countries that use the overload test) of MANUAL ACTION at accelerated speed
          • 17.11 Test of MANUAL ACTION at slow speed
          • 17.12 Test of MANUAL ACTION at high speed
          • 17.13 Test of MANUAL ACTION at accelerated speed
          • 17.14 Evaluation of compliance
          • 17.15 Void
          • 17.16 Test for particular purpose controls
        • 18 Mechanical strength
          • 18.1 General requirements
          • 18.2 Impact resistance
          • 18.3 Void
          • 18.4 Alternate compliance – Impact resistance
          • 18.5 FREE-STANDING CONTROLS
          • 18.6 IN-LINE CORD CONTROLS
          • 18.7 PULL-CORD ACTUATED CONTROLS
          • 18.8 Foot actuated controls
          • 18.9 ACTUATING MEMBER and ACTUATING MEANS
        • 19 Threaded parts and connections
          • 19.1 Threaded parts moved during mounting or SERVICING.
          • 19.2 Current-carrying connections
        • 20 CREEPAGE DISTANCES, CLEARANCES and distances through solid insulation
          • 20.1 CLEARANCES
          • 20.2 CREEPAGE DISTANCES
          • 20.3 Solid insulation
        • 21 Resistance to heat, fire and tracking
          • 21.1 General requirement
          • 21.2 Integrated, incorporated and IN-LINE CORD CONTROLS
          • 21.3 Independently-Mounted Controls
        • 22 Resistance to corrosion
          • 22.1 Resistance to rusting
        • 23 Electromagnetic compatibility (EMC) requirements – emission
          • 23.1.1 Test conditions
          • 23.1.2 Test procedure
        • 24 Components
          • 24.2.1DV.3 Overload tests
        • 25 Normal OPERATION
        • 26 Electromagnetic compatibility (EMC) requirements – immunity
        • 27 Abnormal OPERATION
          • 27.2 Burnout test
          • 27.2.3 Blocked mechanical output test (abnormal temperature test)
          • 27.3 Overvoltage and undervoltage test
        • 28 Guidance on the use of electronic disconnection
    • Annex A(normative) Indelibility of markings
    • Annex B(normative) Measurement of CREEPAGE DISTANCES and CLEARANCES in air
    • Annex C(normative) Cotton used for mercury switch test(not applicable in the countries members of CENELEC)
    • Annex D(informative) Heat, fire and tracking
    • Annex E(normative) Circuit for measuring LEAKAGE CURRENT
    • Annex F(informative) Fire hazard testing
    • Annex G(normative) Heat and fire resistance tests
    • Annex H(normative) Requirements for electronic controls
    • Annex J(normative) Requirements for controls using thermistors
    • Annex K(informative) Nominal voltages of supply systems for different modes of overvoltage control
    • Annex L(normative) Overvoltage categories
    • Annex M(informative) Typical usage
    • Annex N(normative) POLLUTION DEGREES
    • Annex P(normative) Printed circuit board coating performance test
    • Annex Q(normative) Printed circuit board coating performance test
    • Annex R(informative) Explanatory notes for surge immunity test
    • Annex S(informative) Guidance for applying clause
    • Annex T(normative) Requirements for SELV and PELV
    • Annex U(normative) Requirements for relays when used as controls in IEC 60335 appliances
    • Annex DVA(normative) Openings
    • Annex DVB(normative) Ratings
    • Annex DVC(normative) Markings
    • Annex DVD(normative) Class 2 Power Sources and Circuits
    • Annex DVE(normative) Manufacturing and Production Tests
    • Bibliography