scope:

This Clause of Part 1 is completely replaced by: This Part of IEC 60669 applies to electronic control devices which is used as a general term to cover electronic switches, HBES/BACS switches and electronic extension units. It applies to electronic switches and to HBES/BACS switches, for alternating current (AC) only with a rated switching voltage not exceeding 250 V and a rated current not exceeding 16 A, intended for household and similar fixed electrical installations, either indoors or outdoors. It also applies to electronic extension units with a rated supply voltage not exceeding 250 V AC and 120 V DC, such as sensors and push buttons controlling the electronic switches, or the HBES/BACS switches or similar control devices used in lighting systems in the building environment. NOTE 1 - An example of lighting systems is DALI. This Part of IEC 60669 also applies to electronic RCS and electronic TDS. Particular requirements are given in Annex FF. Switches including only passive components such as resistors, capacitors, inductors, PTC and NTC components, varistors, printed wiring boards and connectors are not considered as electronic control devices. This Part of IEC 60669 also applies to electronic switches and HBES/BACS switches for the operation of lighting equipment circuits and the control of the brightness of lighting equipment (dimmers) as well as the control of the speed of motors (for example, those used in ventilating fans) and for other purposes (for example, heating controls).