Standards Development

Scope

This document applies to timer and time switches

- 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 „controls“ means „timer or time switches “..

NOTE 2 Throughout this document, the word “timers” means timers and time switches, unless the type is specifically mentioned.

- 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;

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

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

NOTE 3 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 timers and timeswitches, and

–        functional safety of timers and timeswitches and safety related systems,

–        timers and timeswitches 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.

–       timers for appliances within the scope of IEC 60335 series.

–        manual controls when such are electrically and/or mechanically integral with timers.

This document specifies the requirements for construction, operation and testing of timers and timeswitches used in, on, or in association with an equipment.

This document does not

- apply to time-delay switches (TDS) within the scope of IEC 60669-2-3.

- include devices which only indicate time or passage of time.

- apply to multi-functional controls having an integrated timing function which is not capable of being tested as a separate timing device.