IEC 60730-2-10 Ed. 3.0 en:2026

Current Revision
Automatic electrical controls - Part 2-10: Particular requirements for motor-starting relays

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Automatic electrical controls - Part 2-10: Particular requirements for motor-starting relays

PUBLISH DATE 2026

IEC 60730-2-10:2026 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.

NOTE 2: Requirements for manually actuated mechanical switches not forming part of an automatic control are contained in IEC 61058-1-1.

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.

This part 2-10 is intended to be used in conjunction with IEC 60730-1. It was established on the basis of the sixth edition of that standard (2022). Consideration may be given to future editions of, or amendments to, IEC 60730-1.

This part 2-10 supplements or modifies the corresponding clauses in IEC 60730-1, so as to convert that publication into the IEC standard: Particular requirements for motor-starting relays.

Where this part 2-10 states "addition", "modification" or "replacement", the relevant requirement, test specification or explanatory matter in Part 1 should be adapted accordingly.

When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies.

This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

  • a) adoption of IEC 60730-1:2022 with all of its significant changes.
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