UL 60730-1

Automatic Electrical Controls for Household and Similar Use, Part 1: General Requirements

UL 60730-1

1 Scope and normative references

1.1 In general, this 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 Standard applies to the inherent safety; to the operating values, operating times, and operating sequence 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 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 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.

IEC 61810-1, Electromechanical elementary relays - Part 1: General and safety requirements.

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 normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60730. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC 60730 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.


IEC 60038: 1997, IEC standard voltages

IEC 60050(604): 1987, International Electrotechnical Vocabulary (IEV) - Chapter 604: Generation, transmission and distribution of electricity - Operation

IEC 60065: 2001, Audio, video and similar electronic apparatus - Safety requirements

IEC 60068-2-75: 1997, Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests

IEC 60085: 1984, Thermal evaluation and classification of electrical insulation

IEC 60099-1: 1999,Surge arresters - Part 1: Non-linear resistor type gapped arresters for a.c. systems

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

IEC 60127-1: 2002, Miniature fuses - Part 1: Definitions for miniature fuses and general requirements for miniature fuse-links

IEC 60216-1: 2001, Property of thermal endurance - Part 1: Ageing procedures and evaluation of test results

IEC 60227-1: 1998, Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V - Part 1: General requirements

IEC 60245-1: 2003, Rubber insulated cables - Rated voltages up to and including 450/750 V - Part 1: General requirements

IEC 60249, Base materials for printed circuits

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

IEC 60326-2: 1990, Printed boards - Part 2: Test methods

IEC 60326-3: 1991, Printed boards - Part 3: Design and use of printed boards

IEC 60335-1: 2006, Household and similar electrical appliances - Safety - Part 1: General requirements

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

IEC 60384-14: 2005, 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: 1992, Fixed capacitors for use in electronic equipment - Part 16: Sectional specification - Fixed metallized polypropylene film dielectric d.c. capacitors

IEC 60384-17: 1987, Fixed capacitors for use in electronic equipment - Part 17: Sectional specification - Fixed metallized polypropylene film dielectric a.c. and pulse capacitors

IEC 60417, Graphical symbols for use on equipment

IEC 60423: 1993, Conduits for electrical purposes - Outside diameters of conduits for electrical installations and threads for conduits and fittings

IEC 60529: 1999, Degrees of protection provided by enclosures (IP code)

IEC 60539: 2002, Directly heated negative temperature coefficient thermistors - Part 1: General specifications

IEC 60664-1: 2002, 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 60695-2-11: 2000, Fire Hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products

IEC 60695-2-13: 2000, Fire Hazard testing - Part 2-13: Glowing/hot-wire based test methods - Glow-wire ignitability test method for materials

IEC 60695-11-5: 2004, Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance

IEC 60695-11-10: 2003, Fire hazard testing - Part 11-10: Test flames - 50 W horizontal and vertical flame test methods Amendment 1 (2003)

IEC 60695-11-20: 1999, Fire hazard testing - Part 11-20: Test flames - 500 W flame test methods Amendment 1 (2003)

IEC 60738-1: 1998, Thermistors - Directly heated positive step-function temperature coefficient - Part 1: Generic specification

IEC 60738-1-1: 1998, Thermistors - Directly heated positive step-function temperature coefficient - Part 1-1: Blank detail specification - Current limiting application - Assessment level EZ

IEC 60998-2-2: 2002, 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 61000 (all parts), Electromagnetic compatibility (EMC)

IEC 61000-3-2: 2001, Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current) £ 16 A per phase)

IEC 61000-3-3: 2001, Electromagnetic compatibility (EMC) - Part 3 Limits - Section 3: Limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current £ 16 A

IEC 61000-4-2: 2000, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 2: Electrostatic discharge immunity test. Basic EMC Publication

IEC 61000-4-3: 2006, 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: Testing and measurement techniques - Electrical fast transient/burst immunity test.

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

IEC 61000-4-6: 2003, Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement techniques - Immunity to conducted disturbances, induced by radio-frequency fields

IEC 61000-4-8: 2000, Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test

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 61058-1: 2000, Switches for appliances - Part 1: General requirements

IEC 61140:2001, Protection against electric shock - Common aspects for installation and equipment

IEC 61201: 1992, Extra-low voltage (ELV) - Limit values

IEC 61210:1993, Connecting devices - Flat quick-connect terminations for electrical copper conductors - Safety requirements

IEC 61558-2-6:1997, Safety of power transformers, power supply units and similar - Part 2: Particular requirements for safety isolating transformers for general use. Group safety publication

IEC 61558-2-17:1997, Safety of power transformers, power supply units and similar - Part 2: Particular requirements for transformers for switch mode power supplies

CISPR 14-1: 2002, Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus - Part 1: Emission

CISPR 22: 2003, Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement

1.5DV Addition of the following to 1.5:

The following UL Standards are referenced in this Standard:


UL 20, Switches, General Use Snap

UL 44, Wires and Cables, Rubber-Insulated

UL 50, Enclosures for Electrical Equipment

UL 50E, Enclosures for Electrical Equipment, Environmental Considerations

UL 62, Flexible Cord and Fixture Wire

UL 83, Wire Cables, Thermoplastic-Insulated

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

UL 224, Tubing, Extruded Quick-Connect

UL 228 series, Low-Voltage Fuses

UL 310, Terminals, Electrically Quick-Connect

UL 372, Primary Safety Controls for Gas-and Oil-Fired Appliances

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, Electrical

UL 510, Tape, Electrical Insulating

UL 512, Fuseholders

UL 514A, Metallic Outlet Boxes

UL 514B, Fittings for Conduit and Outlet Boxes

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

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, Motors, Electric

UL 1054, Switches, Special Use

UL 1059, Terminal Blocks

UL 1077, Protectors, Supplementary, for Use in Electrical Equipment

UL 1414, Capacitors, Across-the-Line, Antenna-Coupling and Line-by-Pass for Radio-and Television -Type Appliances

UL 1434, Thermistor-type Devices

UL 1441, Sleeving, Coated

UL 1446, Systems of Insulating Materials - General

UL 1998, Software in Programmable Components

UL 2111, Overheating Protection for Motors

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

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

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

UL 60691Thermal-Links - Requirements and Application Guide

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