BS EN 60669-2-1:2004+A12:2010 pdf free.Switches for household and similar fixed electrical installations – Part 2-1:Particular requirements – Electronic switches.
This clause of part 1 applies except as follows.
Replacement:
This standard applies to electronic switches and to associated electronic extension units for household and similar fixed electrical installations either indoors or outdoors.
It applies to electronic switches for a.c. only, for the operation of lamp circuits and the control of the brightness of lamps (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), with a rated voltage not exceeding 250 V and a rated current not exceeding 16 A.
The operation and/or control as mentioned above are performed bya person via an actuating member, a sensing surface or a sensing unit, by means of touch, proximity, turn, optical, acoustic, thermal or any other influence.
This standard also applies to general purpose electronic switches with included automatic functions where the operation and/or the control is initiated by a change of a physical quantity, for example light, temperature, humidity, time, wind velocity, presence of persons, etc.
8 Marking
This clause of part 1 applies except as follows.
8.1 Replacement:
Electronic switches shall be marked with
– rated voltage in volts;
rated current in amperes or rated load in volt-amperes or watts:
– symbol for nature of supply;
manufacturer’s or responsible vendor’s name, trade mark or identification mark; type reference, which may be a catalogue number:
– symbol for mini-gap construction, if applicable;
symbol for micro-gap construction, if applicable;
symbol for semiconductor switching device, if applicable;
— first characteristic numeral for the degree of protection against access to hazardous parts and against harmful effects due to ingress of solid objects, if declared higher than 2, in which case the second characteristic numeral shall also be marked;
second characteristic numeral for the degree of protection against harmful effects due to ingress of water, if declared higher than 0, in which case the first characteristic numeral shall also be marked.
NOTE I Marking of the pattern number given in 7.1.1 is recommended if the connections are not clear from an inspection of the electronic switch; this pattern number may be part of the type reference.
NOTE 2 If a base carries two or more electronic switches with separate operating devices, marking with the pattern numbers is recommended, for example 1+6 or 1+1+1.
NOTE 3 For electronic switches suitable for more than one type of rated load, see 8.3.
In addition, electronic switches shall be marked with
— rated frequency in hertz, unless the electronic switch is designed for both 50 Hz and 60 Hz;
– rating and type of any fuse incorporated in the electronic switch; symbols for the kind of load (see 8.2);
the term “extension unit”, if applicable, or the relevant translation in the official language(s) of the country in which the product is to be sold, followed by the identifying reference;
– the minimum height for mounting the electronic switch shall be indicated in the installation instruction of the manufacturer if there is a restriction (see 10.1).BS EN 60669-2-1:2004+A12:2010 pdf free download.