IEC 60730-2-13 Ed. 4.0 b:2025

IEC 60730-2-13:2025 applies to automatic electrical humidity sensing controls

• for use in, on, or in association with equipment for household appliance and similar use;
• for 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;
• that are smart enabled controls;
• that are AC or DC powered controls 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 and to discrete thermistors, requirements for which are contained in Annex J;
• that are 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;
• as well as manual controls when such are electrically and/or mechanically integral with automatic controls.

NOTE 1 Throughout this document, the word "equipment" means "appliance and equipment" and "controls" means "humidity sensing control".

EXAMPLE 1 Humidity sensing controls for commercial catering, heating and air-conditioning equipment.

EXAMPLE 2 Smart grid control, remote interfaces/control of energy-consuming equipment including computer or smart phone.

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 automatic electrical humidity sensing controls, and
• functional safety of automatic electrical humidity sensing controls and safety related systems,
• humidity sensing 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.

This document specifies the requirements for construction, operation and testing of automatic electrical humidity sensing controls used in, on, or in association with an equipment.

This document does not:

• apply to automatic electrical humidity sensing controls intended exclusively for industrial process applications unless explicitly mentioned in the relevant part 2 or the equipment standard. However, this document can be applied to evaluate humidity sensing controls 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 humidity sensing control, if such a response value is dependent upon the method of mounting the humidity sensing 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;
• address the integrity of the output signal to the network devices, such as interoperability with other devices unless it has been evaluated as part of the control system.

This fourth edition cancels and replaces the third edition published in 2017. This edition constitutes a technical revision.

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

• adoption to IEC 60730-1:2022 with all of its significant changes to IEC 60730-1:2013, IEC 60730-1:2013/AMD1:2015 and IEC 60730-1:2013/AMD2:2020.