1 Scope

Replacement:

This part of IEC 60730 applies to automatic electrical motor-starting relays

• intended to control the start windings of single phase motors;

• for use in, on, or in association with equipment for household appliance and similar use;

  NOTE 1    Throughout this document, the word "equipment" means "appliance and equipment" and "control" means "motor-starting relays".

• intended for appliances within the scope of IEC 60335;

• for equipment that is used in building automation within the scope of ISO 16484 series and IEC 63044 series (HBES/BACS);

• for equipment that is used by the public, such as equipment intended to be used in shops, offices, hospitals, farms and commercial and industrial applications;

  EXAMPLE 1    Controls for commercial catering, heating and air-conditioning equipment.

• used in, on, or in association with equipment that are smart enabled;

  EXAMPLE 2    Smart grid control, remote interfaces/control of energy-consuming equipment.

• that are AC or DC powered with a rated voltage not exceeding 690 V AC or 600 V DC;

• used in, on, or in association with equipment that use electricity, gas, oil, solid fuel, solar thermal energy, etc., or a combination thereof;

• utilized as part of a control system or controls which are mechanically integral with multifunctional controls having non-electrical outputs;

• using NTC or PTC thermistors, requirements for which are contained in Annex J;

• that are mechanically or electrically operated, responsive to or controlling such characteristics as current and voltage, or combinations thereof;

  EXAMPLE 3    Centrifugal motor-starting devices.

• as well as manual controls when such are electrically and/or mechanically integral with automatic controls.

This document applies to

• the inherent safety of motor-starting control, and

• functional safety of motor-starting control and safety related systems (when required),

• controls where the performance (for example the effect of EMC phenomena) of the product can impair the overall safety and performance of the controlled system,

• the operating values, operating times, and operating sequences where such are associated with equipment safety,

• motor-starting controls incorporating electronic devices, thermistor elements, thermal elements or magnetic elements.

This document specifies the requirements for construction, operation and testing of automatic electrical motor-starting relays used in, on, or in association with an equipment.

This document does not

• apply to motor-starting relays designed exclusively for industrial process applications unless explicitly mentioned in the relevant equipment standard. However, this document can be applied to motor-start relays for equipment intended specifically for industrial applications in cases where no relevant safety standard exists;

• 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 equipment standard or as determined by the manufacturer will apply;

• apply to general purpose relays or to contactors and motor starters of the type covered by IEC 60947 series;

• apply to mechanically operated motor-starting devices.