SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
 
 
 
      
SAUDI STANDARD 
NO.  SASO IEC 60669-2-1:  2008  
 
 
SWITCHES FOR HOUSEHOLD AND SIMILAR 
FIXED ELECTRICAL INSTALLATIONS – 
 
Part 2-1: Particular requirements – 
Electronic switches  
 
 
 
 
        
SAUDI ARABIAN STANDARDS ORGANIZATION 
THIS DOCUMENT IS A DRAFT SAUDI STANDARD CIRCULATED FOR COMMENTS.  IT IS, THEREFORE, SUBJECT TO CHANGE AND MAY NOT BE REFERRED TO AS A SAUDI STANDARD UNTIL APPROVED BY THE BOARD OF DIRECTORS.  SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
1 
  
 
CONTENTS  
FOREWO RD ...................................................................................................................... .. 3 
 1 Sco pe ....................................................................................................................... ..... 4 
2 Normative re ferenc es ..................................................................................................... 5 
3 Defini tions ................................................................................................................. ..... 6 
4 General r equirem ents ..................................................................................................... 9 
5 General note s on te sts ................................................................................................... 9 
6 Rati ng ...................................................................................................................... .... 10 
7 Classification ................................................................................................................ 10 
8 Mark ing ..................................................................................................................... ... 11 
9 Checking of dimensions ................................................................................................ 14 
10 Protection against electric s hock .................................................................................. 14 
11 Provision fo r earthin g ................................................................................................... 1 6 
12 Term inals .................................................................................................................. ... 16 
13 Constructional re quirements  ......................................................................................... 17 
14 Mech anism .................................................................................................................. . 18 
15 Resistance to ageing, protection prov ided by enclosures of switches,  
and resistance to  humidity ............................................................................................ 18 
16 Insulation resistance and electric st rength .................................................................... 18 
17 Temperat ure ri se .......................................................................................................... 19 
18 Making and breaking capacity ....................................................................................... 22 
19 Normal operatio n .......................................................................................................... 24 
20 Mechanical strengt h ..................................................................................................... 27  
21 Resistanc e to heat........................................................................................................ 2 7 
22 Screws, current-carryi ng parts and connec tions ............................................................ 27 
23 Creepage distances, clearances and dist ances through sea ling compoun d ................... 27 
24 Resistance of insulating material to abnor mal heat, to fire and to tracki ng ..................... 29 
25 Resistance to  rustin g .................................................................................................... 2 9 
26 EMC requi rement s ........................................................................................................ 29  
101 Abnormal c onditions  ..................................................................................................... 3 5 
102 Com ponents ................................................................................................................ . 37 
 Annex A (normative)  Survey of specimens needed for te sts .............................................. 42 
Annex B (normative)  Additional requirements for switches having facilities for the 
outlet and retention of flexible c ables .................................................................................. 43 
Annex AA (informative)  Examples of types of electronic switches and their functions ......... 44 
 Bibliogr aphy .................................................................................................................. ..... 45 
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
2 
 Figure 101 – Test pin for checking the protection against electric shock ................................ 9 
Figure 102 – Circuit diagram for testing elec tronic switches accord ing to 101.3 ................... 41 
 
Table 101 – Number of  specimens  ...................................................................................... 10 
Table 102 – Permissible temperature rise values (This table is based on table 3  
of IEC 60065 ) ................................................................................................................. .... 23 
Table 103 – Relationship between rat ed current and capa citance ........................................ 26 
Table 104 – Immuni ty tests ................................................................................................. 30  
Table 105 – Voltage dip and short-in terruption test  values ................................................... 30 
Table 106 – Fast transient  test valu es ................................................................................. 31 
Table 107 – C apacito rs ....................................................................................................... 39 
Table B.1 – Maximum current and mi nimum cross-sect ional ar ea ........................................ 43 
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
3 
  
 
FOREWORD 
 
The Saudi Standards,Metrology  and Quality  Organization (SASO) has adopted the 
International Standard IEC 60669-2-1/2008 “SWITCHES FOR HOUSEHOLD AND SIMILAR FIXED ELECTRICAL INSTALLATI ONS –  Part 2-1: Particular 
requirements – Electronic switches ” issued  by the International Electrotechnical 
Commission (IEC). It has been adopted wit hout any technical modifications with a 
view to its approval as a Saudi standard. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
4 
  
 SWITCHES FOR HOUSEHOLD AND SIMILAR 
FIXED ELECTRICAL INSTALLATIONS – 
 
Part 2-1: Particular requirements – 
Electronic switches 
   
1 Scope 
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 inst allations 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 ventila ting fans) and for other purpos es (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 ar e performed by a 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 contro l is initiated by a change of a physical 
quantity, for example light, temperature, humidity , time, wind velocity, presence of persons, 
etc.  
This standard also applies to boxes for electr onic switches, with the exception of mounting 
boxes for flush-type electronic switches. 
This standard also applies to electronic RCS and electronic TDS with a rated voltage not 
exceeding 440 V and a rated current not exceeding 25 A, intended for household and similar 
fixed electrical installations, either indoors or outdoors.  
NOTE 1 Switches including only passive components such  as resistors, capacitors, inductors, PTC and NTC 
components, varistors, printed wiring boards and connecto rs are not considered as  electronic switches.  
NOTE 2 Electronic switches may hav e control circuits with a.c. or d.c. rated control voltages.  
Electronic switches complying with this standar d are suitable for use at ambient temperature 
not normally exceeding 25 °C but occasionally reaching 35 °C. 
In locations where special conditions prevail, su ch as in ships, vehicles and the like and in 
hazardous locations, for example, where explosi ons are liable to occur, special constructions 
may be required. 
NOTE 3 This standard is not intended to cover devices which are designed to be incorporated in appliances or 
are intended to be delivered together with a specific app liance and which are within the scope of IEC 60730 or  
IEC 61058-1. 
Examples of designs of electronic switc hes and functions are shown in annex AA. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
5 
 NOTE 4 Electronic switches without a mechanical switch in the main circuit do not provide a “full off-state”. 
Therefore, the circuit on the load side should be considered to be live. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
6 
 2 Normative references 
This clause of part 1 applies except as follows. 
Addition: 
IEC 60065:2001, Audio, video and similar electronic apparatus – Safety requirements   
IEC 60085:1984, Thermal evaluation and classification of electrical insulation  
IEC 60127 (all parts), Miniature fuses  
IEC 60227-5:1997, Polyvinyl chloride insulated cables of rated voltages up to and including 
450/750 V – Part 5: Flexible cables (cords) 1) 
IEC 60317 (all parts), Specifications for particular types of winding wires  
IEC 60317-0-1:1997, Specifications for particular types of  winding wires – Part 0: General 
requirements – Section 1: Enamelled round copper wire1) 
IEC 60384-14:1993, Fixed capacitors for use in electronic equipment – Part 14: Sectional 
specification: Fixed capacitors for electromagn etic interference suppression and connection 
to the supply mains 
IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems –  
Part 1: Principles, requirements and tests  
IEC 60664-3, Insulation coordination for equipment with in low-voltage systems – Part 3: Use 
of coating, potting or moulding for protection against pollution  
IEC 60669-2-2:2006, Switches for household and similar fixed electrical installations –  
Part 2-2: Particular requirements - Elec tromagnetic remote-control switches (RCS)  
IEC 60669-2-3:2006, Switches for household and similar fixed electrical installations –  
Part 2-3: Particular requirement s - Time-delay switches (TDS)  
IEC 60730 (all parts), Automatic electrical controls for household and similar use   
IEC 60998-2-1, Connecting devices for low-voltage circui ts for household and similar purposes – 
Part 2-1: Particular requirements for connecti ng devices as separate entities with screw-type 
clamping units  
IEC 61000-2-2:2002, Electromagnetic compatibility (EMC) – Part 2-2: Environment –
Compatibility levels for low-frequency conducted disturbances and signalling in public low-
voltage power supply systems  
IEC 61000-3-2:2000, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for 
harmonic current emissions (equipment input current ≤ 16A per phase)1) 
IEC 61000-3-3:1994, Electromagnetic compatibility (EMC) – Part 3: Limits – Section 3: 
Limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with 
rated current ≤ 16 A1) 
IEC 61000-4-2:1995, Electromagnetic compatibility (EMC) − Part 4: Testing and 
measurement techniques − Section 2: Electrostatic discharge immunity test1) 
IEC 61000-4-3:2002, Electromagnetic compatibility (EMC) − Part 4-3: Testing and measure-
ment techniques − Radiated, radio-frequency, electromagnetic field immunity test  
___________ 
1) A  consolidated  versi on of this standard exists. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
7 
 IEC 61000-4-4:1995, Electromagnetic compatibility (EMC) − Part 4: Testing and 
measurement techniques − Section 4: Electrical fast transient/burst immunity test  
IEC 61000-4-5:1995, Electromagnetic compatibility (EMC) − Part 4: Testing and 
measurement techniques − Section 5: Surge immunity test1) 
IEC 61000-4-6:1996, Electromagnetic compatibility (EMC) − Part 4: Testing and 
measurement techniques − Section 6: Immunity to conducted disturbances, induced by radio-
frequency fields 1) 
IEC 61000-4-8:1993, Electromagnetic compatibility (E MC) – Part 4: Testing and 
measurement techniques – Section 8: Powe r frequency magnetic field immunity test1) 
IEC 61000-4-11:1994, Electromagnetic compatibility (EMC) − Part 4: Testing and 
measurement techniques − Section 11: Voltage dips, short interruptions and voltage 
variations immunity tests1)  
IEC 61032, Protection of persons and equipment by en closures – Probes for verification 
IEC 61558-2-6, Safety of power transformers, power supply units and similar –  
Part 2: Particular requirements for safety  isolating transformers for general use  
CISPR 14 (all parts), Electromagnetic compatibility – Requir ements for household appliances, 
electric tools and similar apparatus  
CISPR 15:2000, Limits and methods of measurement of radio disturbance characteristics of 
electrical lighting and similar equipment  
ISO 306:1994, Plastics – Thermoplastic materials – Determination of Vicat softening 
temperature (VST)  
3 Definitions 
This clause of part 1 applies with the following additions. 
Addition, after the first paragraph: 
The term “electronic switch” is used as a general term to cover both electronic switching and 
control devices. 
3.101 
rated load 
load assigned to the electronic switch by the manufacturer 
3.102  
minimum load  
lowest load at which the electronic  switch still operates correctly 
3.103  
minimum current  
lowest current at which the electr onic switch still operates correctly 
3.104 
electromechanically operated contact mechanism  
component which operates the parts used to open and close the circuit electromechanically 
___________ 
1)  A consolidated version of this standard exists. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
8 
 3.105  
semiconductor switching device  
switching device designed to make or break the cu rrent in an electric circuit by means of the 
controlled conductivity of a se miconductor in that circuit 
NOTE 1 In a circuit where the current passes through zero (periodically or otherwise) the effect of “not making” 
the current following such a zero value is equivalent to breaking the current. 
NOTE 2 Typical examples of semi conductor switching devices are: 
− electronic switching devices using t he phase-cut-on principle to control t he load by electronic switching on the 
current at any phase angle at or after zero crossing in each half-wave, for example, by a thyristor; 
− electronic switches using the phase-cut- off principle to control the load by switching off the current at any phase 
angle after zero crossing in each half-wave, for example, by a transistor in a diode bridge. 
3.106  
electronic momentary contact switch  
electronic switch with an electromechanical  switching mechanism or a semiconductor 
switching device which returns automatically  to the initial state after operation 
3.107 
mechanical control unit  
unit directly adjustable by mechanical means (f or example, potentiometer) which controls the 
output via electronic components 
3.108 
electronic output control unit  
unit adjustable by other than mechanical means (for example, sensin g unit), containing 
electronic components and controlling the output via electronic components 
3.109 
electronic extension unit  
unit permitting the control of an el ectronic switch from a distance 
3.110 
protective impedance 
impedance connected between live parts and accessibl e conductive parts, of such value that 
the current, in normal use and under likely fault c onditions in the electronic switch, is limited 
to a safe value, and which is so constructed t hat the reliability is maintained throughout the 
life of the electronic switch. 
3.111 
external flexible cable 
cable, a part of which is external to  the electronic output control unit.  
NOTE Such cable may either be a supply cable or a connecti ng cable between separate parts of an accessory. 
3.112  
RCS remote controlled switch 
switch intended to be operated from a distance  
3.112.1   
electromagnetic RCS  
RCS provided with a coil which is operated by means of impulses or which may be 
permanently energized by means of a control circuit  
NOTE These devices are covered by IEC 60669-2-2.  SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
9 
 3.112.2   
electronic RCS  
electronic switch providing the function, mark ings and connection configuration of an RCS 
according to IEC 60669-2-2, but containing elec tronic components and/or a combination of 
electronic components and a coil or coils, whic h is operated by means of an electronic 
extension unit or units 
NOTE This electronic RCS may for exam ple be used as a look alike repl acement for RCS according to  
IEC 60669-2-2. 
3.113  
rated control voltage  
the voltage assigned to the external cont rol circuit by the manufacturer  
3.114   
switching circuit  
the circuit which contains the parts which allow the rated current to flow through the RCS or 
TDS  
3.115  
control circuit  
the circuit which includes electrical parts  to actuate the switching mechanism  
3.116   
control mechanism  
mechanism which includes all the parts which are intended for the operation of the RCS or 
TDS  
3.117  
incorporated hand-operated device  
device incorporated in the switch which allows th e switching circuit to be operated, directly or 
indirectly. This device is not intended for the normal operation of the RCS or TDS  
3.118  
rated control current  
current required for the initiation of the electr onic RCS assigned to the control circuit by the 
manufacturer  
3.119  
bistable electronic RCS  
electronic RCS containing a control mechanism wh ich, when not initiated electrically or 
actuated mechanically, remains stable in its ope rating position and will change its operating 
position on initiation or actuation  
3.120  
monostable electronic RCS  
electronic RCS containing a control mechanism wh ich, on electrical initiation or mechanical 
actuation, changes the operating position of the switch which remains in this condition while 
the electronic RCS is initiated or actuated, and re turns to the position prior to initiation or 
actuation of the electronic RCS after in itiation or actuation is discontinued 
3.121   
priority electronic RCS  
electronic RCS used to operate directly or indire ctly a first load circuit or group of load 
circuits the use of which at times can be dispen sed with, and where the control circuit of the 
electronic RCS is influenced by or connected to a se cond circuit or group of circuits (priority 
or circuits) which when energized will thus initiate  the control circuit of the electronic RCS to 
de-energize the first load circuit or circuits for the time during which the second circuit or group of circuits is energized  SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
10 
 NOTE The electronic RCS may have a means  for adjusting the sensitivity of t he electronic RCS control circuit to 
initiate the electronic RCS depending on the total load or cu rrent delivered to any part of the circuits (priority 
switch with current coil) or be sensitive to the voltage (p riority switch with voltage coil) applied to the second load 
or group of loads.  
3.122   
TDS  time delayed switch 
switch provided with a time-delay device which operates for a certain time (the delay time). It 
may be either manually actuated and/or remotely electrically initiated  
3.123   
electronic TDS    
electronic switch providing the function, mark ings and connection configuration of a TDS 
according to IEC 60669-2-3, but containing electronic components 
NOTE This electronic TDS may for example be used as a look alike r eplacement for TDS according to 
IEC 60669-2-3.  
3.124  
delay time  
period during which the switching circuit(s) is (are) kept closed. Any time taken for the 
decreasing of the voltage (e.g. to reduce the light ) at the end of the delay period is included 
within the delay time  
3.125  
delay device  
all components which have an influence on the del ay time. The delay time may be adjustable 
4 General requirements 
This clause of part 1 applies. 
5 General notes on tests 
This clause of part 1 applies except as follows. 
5.4 Addition  
The number of test specimens is shown in table 101. 
Table 101 – Number of specimens 
Type of electronic 
switch Number for 
general 
tests Additional specimens for clause or subclause 
18.2 19.101 19.102 24 26 101 and 
102 
Marked with one rated 
current and        
− one rated 
voltage 
− two rated 
voltages 3 
6 3a 
6 a 3 a 
6 a 3 a 
6 a 3 
6 3 
6 3c 
6 b,c 
a  Only for electronic switches with mechanical and electromechanical switching devices; only the complete 
contact mechanism may be submitted. 
b  It may be necessary to provide three addi tional specimens for the test of  101.3. 
c When the tests of Clause 26 have been passed successfu lly, the specimens can be used for these tests. 
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
11 
 5.101  All measurements shall be carried out by methods which are suitable for the purpose, 
which do not appreciably affect the values to  be measured and which are not affected by 
factors such as waveform. 
NOTE Care should be taken to use inst ruments giving true r.m.s. indications. 
5.102  If the electronic circuitry is so enclosed that  the short-circuiting or disconnecting of 
components is impossible or difficult, the manufacturer shall provide one additional test specimen with leads connected for m easurements, short-circuiting, etc. 
It is not necessary to connect leads  to the interior of hybrid and  monolith integrated circuits. 
5.103  It may be necessary to disconnect electronic components for tests. 
5.104  For electronic switches equipped with cut-outs, it may be necessary to provide three 
additional specimens for the test of 102.4.1. 
5.105  If an electronic RCS or electronic TDS is  provided with an incorporated hand-
operated device, it shall be tested as specified in Clause 19 .  
NOTE 1  During the making and breaking capacity tests and the normal operation tests, switching at the same 
phase angle should be avoided, as this  may give misleading results.  
NOTE 2  Precautions should be taken when using combinations equipped with synchronous motors and similar 
operating devices.  
5.106 In the case of an electronic TDS for which the control and the switching circuits have 
no common point, the test is made with the circui ts supplied with the rated voltages which are 
declared by the manufacturer.  
6 Rating 
This clause of part 1 applies except as follows. 
Replacement: 
6.1 Preferred rated voltages are 110 V, 120 V, 130 V, 220 V, 230 V and 240 V. 
6.2 This subclause of part 1 does not apply. 
6.3 The preferred rated supply frequenci es are 50 Hz and/or 60 Hz. 
Addition:  
For electronic RCS, Clause  6 of IEC 60669-2-2 is applicable. 
For electronic TDS, Clause 6 of IEC 60669-2-3 is applicable. 
7 Classification 
7.1  This subclause of part 1 applies except as follows. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
12 
 7.1.1  Add the following new Addition: 
Addition:  
For electronic TDS, Subclause 7. 1.1 of IEC 60669-2-3 applies.  
7.1.5  Addition: 
– touch; 
– proximity; – optical; – acoustic; – other external influences. 
NOTE Actuating the electronic switch includes on/off oper ation, and/or regulating the brightness of lamps or 
speed of motors. 
Addition:  
For electronic RCS, Subclause 7.1.5 of IEC 60669-2-2 is applicable. 
For electronic TDS, Subclause 7.1. 5 of IEC 60669-2-3 is applicable. 
7.1.6 Addition: 
− electronic switches only intended to be m ounted at a height greater than 1,7 m. 
7.1.101  according to the kind of load intended to be controlled by the electronic switch: 
− incandescent lamps; 
− fluorescent lamps; 
− motors; 
− declared load. 
7.2 This subclause of part 1 does not apply. 
7.101  For electronic RCS, Subclause 7.101 of IEC 60669-2-2 is applicable. 
7.102  For electronic RCS, Subclause 7.102 of IEC 60669-2-2 is applicable. 
7.103 Electronic RCS or electronic TDS having a SELV- or PELV-circuit.  
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; SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
13 
 − manufacturer’s or responsible vendor’s na me, 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 1 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 patte rn number may be part of the type reference. 
NOTE 2 If a base carries two or more electronic switc hes 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 sw itches 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 pr oduct 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). 
In addition, electronic switches with screwless term inals shall be marked with an indication of 
the suitability to accept rigid conductors only , for those electronic switches having this 
restriction. This information may be put on the el ectronic switch and/or on the packaging unit. 
For general purpose electronic switches with included automatic function the number of 
operations shall be stated in the accompanyi ng instruction sheet when the manufacturer 
declares the number of operations is higher than indicated in Subclauses 19.101, 19.102 and 
19.104.  
In addition, 
– for electronic RCS, Subclause 8.1 of IEC 60669-2-2 applies; 
– for electronic TDS, Subclause 8.1 of IEC 60669-2-3 applies. 
8.2   Addition:  
Volt-ampere ..........................................................................................................  VA 
Watt  ...................................................................................................................  W Hertz  ...................................................................................................................  Hz 
Terminal for r egulated l oad ...................................................................................  
Type of load: Incandescent  lamps ..............................................................................................  
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
14 
 Fluorescent lamps ................................................................................................  SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
15 
 Motors ..................................................................................................................  
Electronic step-down converter for extra low- voltage incandescent lamps (for example, 
halogen)   ..............................................................................................................  
Iron core transformer for extra low-voltage incandescent lamps  
(for example,  halogen ) ..........................................................................................  
NOTE The rating and type of any fuse may be marked with symbols (see IEC 60127). 
If other particular symbols are used, they sha ll be explained in the installation instructions. 
In addition, 
– for electronic RCS, Subclause 8.2 of IEC 60669-2-2 applies; 
– for electronic TDS, Subclause 8.2 of IEC 60669-2-3 applies. 
8.3 Replacement of the first paragraph:  
The following marking shall be placed on t he main part of the electronic switch: 
− the rated current or rated load, rated volt age, symbol for nature of supply, rated 
frequency (if required by 8.1), at least one ty pe of load, the rating and type of any 
incorporated fuse (this shall be marked on the fuse-holder or in the proximity of the 
fuse), 
− either the name, trade mark or identificati on mark of the manufacturer or of the 
responsible vendor, 
− length of insulation to be removed before the insertion of the conductor into the 
screwless terminal, if any, 
− symbol for mini-gap construction, micro-gap construction or semiconductor device, if 
applicable, 
− the type reference. 
NOTE 1 The type reference may be the series reference only. 
Where an electronic switch is suitable for more t han one type of load if not already marked on 
the electronic switch, the information concerning these shall be stated in the accompanying  
instruction sheet. In addition, the minimum and the maximum current or the minimum and the 
maximum load in volt-ampere or watt shall be stated for each type of load.  
Addition:  
If an electronic switch is intended to be used together with an iron core transformer, 
information shall be given in the instruction sheet that only a transformer intended to be used 
with an electronic switch shall be used. 
8.4   Addition:  
If there are more than two terminals, the load terminal shall be marked with an arrow pointing 
away from the terminal or with one of the sy mbols mentioned in 8.2 and any other terminals 
shall be marked corresponding to the installation instructions. 
Unless the installation of the electronic switch is  made clear by the markings of the terminals, 
a wiring diagram shall be provided with each electronic switch.  M
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
16 
 In addition, 
– for electronic RCS, Subclause 8.4 of IEC 60669-2-2 applies; 
– for electronic TDS, Subclause 8.4 of IEC 60669-2-3 applies. 
8.6   Addition:  
The off-state shall not be marked with an “O” if th e circuit on the load side is considered as 
live, in accordance with clause 10.  
8.6.101   It is recommended that the actual state of the electronic switch intended to 
control the brightness of lamps be indicated w hen used as intended. This can be achieved 
either 
– with marking on the on-/off-state position, or 
– with an indicator lamp, or – by adjusting the lamp dimmer so that at the lowest control state and at rated voltage 
minus 10 %, the light is still visible. 
NOTE A test to verify that the light is still visible is under consideration. 
When the indication of the electronic switch stat e is given only by the lamp, adjustment of the 
lamp at the lowest control state is made as specified in the following: 
− for incandescent lamps, the adjustment of lamp dimmers shall be made by the 
manufacturer. It shall not be possible to reduce the lowest setting without a tool; 
− for fluorescent lamps, the adjustment of lamp dimmers shall be made by the 
manufacturer. It may, however, be possible for the installer to alter the lowest setting 
if such an adjustment is indicat ed in an installation instruction. 
8.8 Addition after the second paragraph:  
If an electronic switch containing a viewing window (lens) for a sensing device is intended to 
be mounted at a height greater than 1,7 m, this information shall be stated in the instruction 
sheet. 
Addition to note 2: 
− information concerning external, directly associ ated fuses/current limiting devices, where applicable. 
9 Checking of dimensions 
This clause of part 1 applies except as follows. 
Addition: Electronic switches may be of dimensions other than those specified in the standard sheets 
(if any) provided they are supplied with suitable boxes. 
10 Protection against electric shock 
This clause of part 1 applies except as  follows.  
10.1 Addition:  
NOTE 1 For the purpose of this standard, metal sensing su rfaces which are connected to  live parts by means of 
protective impedances (see 10.2) ar e not considered to be live parts. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
17 
 Replacement of the 6th and 7th paragraphs : 
During this additional test, the electronic switc hes are subjected for 1 min to a force applied 
through the tip of test probe 11 of IEC 61032.  
This probe, with an electrical indicator as descr ibed above, is applied with a force of 75 N to 
all places where yielding of the insulating materi al could impair the safety of the electronic 
switch, but is applied to thin-walled knock-outs with a force of 10 N. 
Viewing windows or the like on electronic switc hes intended to be mounted at a height 
greater than 1,7 m are subjected to a force of 30 N. 
The test probe  is not applied to membranes and the like. These parts are tested according to 
13.15.1. 
NOTE 2 For the purposes of this standard, parts connec ted to a supply operating at SELV with a voltage up to 
and including 25 V a.c. or 60 V d.c. ripple free are not considered to be hazardous live parts.  
10.2  Addition:  
For touch sensitive electronic switches, the associated protec tive impedance does not have 
to comply with the requirements of clauses 16 and 23. 
For electronic switches classified according to  7.1.4, first dash, accessible parts which are 
needed for the operation of electronic switches  (for example, sensing surfaces) may be 
connected to live parts. If they are connected to live parts, it shall be by means of a 
protective impedance. 
The protective impedance shall consist of at leas t two resistors or independent capacitors in 
series, of the same nominal value or a combinat ion of both. The resistors shall comply with 
the requirements given in 102.3, and the capacitors shall comply with the requirements given 
in 102.2. 
The removal of protective impedance shall only be possible by destruction of the electronic 
switch or by rendering it unusable. 
Compliance is checked by inspec tion and by the following test. 
The measurements are carried out between eit her a single accessible metal part or any 
combination of accessible metal parts and earth, through a non-inductive resistor of 2 k Ω at 
rated voltage (and rated load in on-state), in on-  and off-state, and/or at lowest and highest 
setting values. During the measurements, each one of the resistors and all other 
components, if any, in the protective im pedance, are alternatively short-circuited. 
The current shall not exceed, in any measurement, 0,7 mA (peak value) for a.c. up to 1 kHz 
or 2 mA for d.c. 
For frequencies above 1 kHz, the limit of 0,7 mA is  multiplied by the value of the frequency in 
kilohertz, but shall not exceed 70 mA. 
10.101 If a cover or cover-plate, or a fuse can be removed without the use of a tool, or if the 
installation instructions for the user indicate  that, for the purpose of maintenance, when 
replacing the fuse, covers and cover-plates fastened by means of a tool have to be removed, the protection against contact with live parts s hall be assured even after removal of the cover 
or cover-plate. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
18 
 This requirement does not apply when the electroni c switch must be dismounted from its supporting 
means for the replacement of the fuse-link. 
NOTE The conditions for the replacement of the fuse should be specif ied in the manufacturer’s instruction. 
Compliance is checked by applying test probe B according to IEC 61032 with a force not 
exceeding 10 N. The test probe shall not touch live parts. 
10.102 If an electronic switch is provided with a hole for adjusting the setting of the 
electronic  and this hole is indicated as such, t he adjustment shall not involve the risk of an 
electric shock. 
Compliance is checked by applying a test pin according to figure 101 through the hole. The 
pin shall not touch live parts. 
10.103 Ventilation openings over live parts shall be  so designed that a foreign body 
introduced into these openings shall not come into contact with any live parts with the 
electronic switch installed as in normal use. 
Compliance is checked by applying the test probe 13 of IEC 61032 through the openings. 
The pin of the test probe shall not touch live parts. 
11 Provision for earthing 
This clause of part 1 applies except as follows. 
Addition: 
This clause does not apply to  SELV electronic switches. 
12 Terminals 
This clause of part 1 applies except as follows. 
12.1  Addition to the end of the subclause:   
NOTE The connecting capacity of terminals for other circuits than the main circuit (load circuit) is not in relation 
to the rated current of the electronic switch. That means  that the terminals for the conductors to an external 
sensing unit may not necessarily have the same connecti ng capacity as the supply and load side terminals of the 
electronic switch. 
Addition after the 3rd paragraph: 
Terminals having screw clamping which are in compliance with IEC 60998-2-1 can be used.  
Addition after the last paragraph: 
Terminals having screw clamping complying with IEC 60998-2-1 are considered to be in 
compliance with the requirements and tests of S ubclause 12.2, except those of 12.2.6 and 
12.2.7 and 12.2.8, provided they are chosen according to Table 2.  
12.2  Add the following new Addition: 
Addition to note 2 of Table 2: This requirement may be achieved using term inal(s) with two separate clamping units. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
19 
 13 Constructional requirements 
This clause of part 1 applies except as follows. 
13.4  Addition after the first paragraph: 
Free openings according to 10.102 and 10.103 are accepted. 
13.5  Replacement: 
Knobs of electronic switches shall be securely fi xed in a reliable manner so that they will not 
work loose in normal use, if lo osening may result in a hazard. 
If knobs are used to indicate the position of elec tronic switches, it shall not be possible to fix 
them in a wrong position, if this may result in a hazard. 
Compliance is checked by inspec tion and by the following tests. 
Where it is possible to apply an axial pull in nor mal use, an axial pull shall be applied for 1 
min to try to pull off the knob. 
The pull force to be applied is normally 15 N, but if the knob is intended to be pulled in 
normal use this is increased to 30 N.  
An axial push of 30 N for 1 min is then applied to all knobs. During and after these tests, the electronic switch shall show no damage, nor shall a knob 
have moved so as to impair compliance with this standard. 
NOTE Sealing compound and the like, other than self- hardening resins are not considered to be adequate to 
prevent loosening. 
13.15.1  Replacement:  
Membranes, lenses and the like shall be reliably fixed and shall not be displaced by the 
mechanical and thermal stresses occurring in normal use. 
Compliance is checked by the following tests. 
Membranes, lenses and the like are tested when assembled in the electronic switches. 
First, the electronic switches are fitted with t he membranes, lenses and the like which have 
been subjected to the treatment specified in 15.1. 
The electronic switches are then placed for 2 h in  a heating cabinet as described in 15.1, the 
temperature being maintained at (40 ± 2) °C.  
Immediately after this period, a force of 30 N is applied for 5 s to various parts of the 
membranes, lenses and the like, by means of the tip of test probe 11 to IEC 61032. 
During these tests, the membranes, lenses and th e like shall not deform to such an extent 
that live parts become accessible. 
For membranes, lenses and the like likely to be su bjected to an axial pull in normal use, an 
axial pull of 30 N is applied for 5 s. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
20 
 During this test, the membranes, lens es and the like shall not come out. 
The test is then repeated with membranes, lenses and the like which have not been 
subjected to any treatment. 
13.101 Automatic protective devices incorporated in  electronic switches for lamp circuits 
shall have at least micro-disconnection. 
Cut-outs in electronic switches for motor speed control circuits shall be non-self-resetting. Compliance is checked by inspection. 
13.102 Electronic switches for the control of the vo ltage of iron core transformers for extra 
low- voltage incandescent lamps (for example,  halogen) shall have a maximum tolerance of 
the phase-control angle between the pos itive and negative half-wave of ± 2°. 
NOTE 1 Higher tolerances will generate a d.c. current infl uencing the temperature rise in the windings of the iron 
core transformer. 
NOTE 2 The maximum tolerance between the phase-cont rol angle of the positive and negative half-wave may be 
measured directly or as d.c. voltage in per cent of the rated voltage. This corresponds at 90° to 1,1 % of the peak 
value of the rated voltage. 
Compliance is checked by measurement. 
13.103 For electronic TDS, Subclause 13 .101 of IEC 60669-2-3 applies. 
14 Mechanism 
This clause of part 1 only applies to electronic switches provided with mechanical switching 
devices.  
14.101 For electronic RCS, Subclause 14. 101 of IEC 60669-2-2 applies. 
For electronic TDS, Subclause 14.101 of IEC 60669-2-3 applies. 
15 Resistance to ageing, protection provided by enclosures of switches, and 
resistance to humidity 
This clause of part 1 applies. 
16 Insulation resistance and electric strength 
This clause of part 1 applies except as follows. 
Addition after the first paragraph: 
Insulation resistance and electric strength are measured with the protective impedances 
according to 10.2 disconnected. 
Addition to table 14: 
NOTE 101 The test according to item 3 is carried out  only on electronic switches combined with mechanical 
switches. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
21 
 Addition to Table 14:  
9 Between switching circuit(s) and control circuit(s) if 
they are electrically separated  5  2 000  3 000  
10 Between SELV/PELV circuits and other circuit(s) 
having a higher voltage than SELV/PELV  7  2 500  3 750  
11 Between two SELV/PELV circuits  5  500  500  
 
17 Temperature rise 
This clause of part 1 applies except as follows. 
Replacement: 
Electronic switches shall be so constructed that  the temperature rise in normal use is not 
excessive. 
The metal and the design of the contacts, if any , shall be such that the operation of the 
electronic switch is not adversely affected by oxidation or any other deterioration. 
The design and the material of the electronic switch shall be such that the material and the 
components in the electronic switch  are not adversely affected by the temperature rise in 
normal use. 
Compliance is checked by the fo llowing test, where applicable. 
The electronic switches are fitted with the c onductors as specified in table 15, the cross-
sectional area being not less than 1,5 mm2; the terminal screws or nuts, if any, are tightened 
with a torque equal to two-thirds  of that specified in 12.2.8. 
Electronic switches for incandescent lamps (l amps rated for public supply voltage use) are 
loaded with lamps which have a rated value of 200 W (lamps of lower rated values and resistors, if any, may be used) so that, at ra ted voltage, the rated load will be obtained. 
Electronic switches for fluorescent lamps and motors are loaded in accordance with the 
manufacturer's instructions. 
Other electronic switches shall be loaded with the ty pe of load as stated in the manufacturer’s 
instructions. 
NOTE 1 The rated loads are verified with the electronic switch short-circuited. 
For electronic TDS, Subclause 17.1 of IEC 60669-2-3 is applicable. 
NOTE 2 If the electronic switch is intended to be loaded wi th different types of load, the test should be carried 
out with each type of load declared. 
The electronic switches are loaded until steady-s tate temperature is reached at a voltage 
between 0,9 and 1,1 times rated voltage, whichever is the more unfavourable. 
In lamp dimmers and speed controllers, the se tting is adjusted such that the highest 
temperature rise will occur. 
Flush-mounted electronic switches are mounted in flush-mounted boxes. The box is placed in 
a block of pinewood filled around the box with plaster, so that the front edge of the box does not protrude and is not more than 5 mm below the front surface of the pinewood block. 
NOTE 3 The test assembly should be allowed to  dry for at least seven days when first made. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
22 
 The size of the pinewood block, which may be f abricated from more than one piece, shall be 
such that there is at least 25 mm of wood surrounding the plaster, the plaster having a thickness between 10 mm and 15 mm around the maximum dimensions of the sides and rear of the box. 
NOTE 4 The sides of the cavity in the pinewood block may have a cylindrical shape. 
The cables connected to the electronic switch shall enter through the top of the box, the 
point(s) of entry being sealed to prevent the circ ulation of air. The length of each conductor 
within the box shall be (80 ± 10) mm. 
Surface-type electronic switches shall be mount ed as in normal use, centrally on the surface 
of a wooden block, which shall be at least 20 mm thick, 500 mm wide and 500 mm high. 
The other types of electronic switches shall be mounted according to the manufacturer's 
instructions or, in the absence of such instructi ons, in the position of normal use considered 
to give the most onerous conditions. 
The test assembly shall be placed in a draught-free environment for the test. The temperature is determined by means of melt ing particles, colour-changing indicators or 
thermocouples, so chosen and positioned that they  have negligible effect on the temperature 
being determined. 
During the test, the electronic switch state shall not change, fuses and other protective 
devices shall not operate and the permissible temperature rises determined in table 102, 
column concerning clause 17, shall not be exceeded. 
After this test, the electronic swit ch shall be in operating condition. 
If sealing compounds are used, they shall not have flowed to such an extent that live parts 
are exposed. 
Compliance is checked by inspection. 
NOTE 5 For the purpose of the test of 21.3, the temperat ure rise of external parts of insulating material not 
necessary to retain current-carrying parts and parts of the earthing circuit in position, even though they are in 
contact with them, is also determined. 
NOTE 6 Undue oxidation of contacts may be prevented by s liding action or by the use of silver or silver-faced 
contacts. 
NOTE 7 Pellets of beeswax (melting-point 65 °C) with a diameter of 3 mm may be used as melting particles. 
NOTE 8 In the case of combination of electronic swit ches, the test is carried out  separately on each electronic 
switch. 
For the purposes of the tests of  102.2, 102.3 and 102.4.1,  the reference temperature 
surrounding a component in an electronic switch is the maximum temperature rise measured on the component during the test plus 25 °C. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
23 
 Table 102 – Permissible temperature rise values  
(This table is based on table 3 of IEC 60065) 
Parts of the electronic switch Permissible temperature rise 
K 
Clause 17 Clause 101 
External parts 
Metal parts       Knobs, handles, sensing surfaces, etc. 
        Enclosure (note 1) Non-metallic parts       Knobs, handl es, sensing surfaces, etc. (note 2)
        Enclosure (notes 1 and 2)  
40 50 60 70  
75 75 75 75 
Inside of enclosures of insulating material (Note 3) (Note 3) 
Windings (note 4) 
Class A 
Class E Class B Class F Class H Class 200 Class 220 Class 250  
75 
90 95 
115 140 160 180 210  
115 
130 140 155 175 195 215 245 
Core laminations As for relevant windings 
Supply cable and wiring: 
Insulated with ordinary polyvinyl chloride (note 8) 
− not under mechanical stress 
− under mechanical stress 
Insulated with natural rubber  
 
  70   55   55  
 
110 110 110 
Other insulations (notes 4 and 7) except thermoplastic 
Non-impregnated paper Non-impregnated cardboard Impregnated cotton, silk, paper and textile, urea resins Laminates bonded with phenol-formal dehyde resins, phenol-formaldehyde 
mouldings with cellulose fillers Phenol-formaldehyde mouldings  with mineral fillers 
Laminates bonded with epoxy resins Natural rubber  
  65   70   80 
 
  95 
105 130 
  55  
  80   90 
100 
 
120 140 160 110 
Thermoplastic materials (note 5) (Note 6) 
Terminals and parts which may come into  contact with cable insulation when 
installed  
55  
110 
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
24 
  
The values of the temperature rises are based on an am bient temperature of 25 °C, but the measurements are 
made under normal conditions. 
NOTE 1 For areas not exceeding 5 cm2 and which are not likely to be touched in normal use, temperature rises 
up to 75 K are allowed under normal operating conditions. 
NOTE 2 If these temperature rises are higher than those allo wed by the class of the relevant insulating material, 
the nature of the material is the governing factor. 
NOTE 3 The permissible temperature rises for the inside of  enclosures of insulating material are those indicated 
for the relevant materials. 
NOTE 4 For the purpose of this standard, the permissi ble temperature rises are based on the recommendations 
in IEC 60085. The materials quoted above are shown only as  examples. If materials other than those listed in 
IEC 60085 are used, the maximum temperatures mu st not exceed those which have been proved to be 
satisfactory. 
NOTE 5 Natural and synthetic rubbers are not c onsidered as being therm oplastic materials. 
NOTE 6 Due to their wide variety, it is not possible to  specify permissible temperat ure rises for thermoplastic 
materials. While the matter is under consi deration, the following method shall be used. 
a)  The softening temperature of the material is  determined on a separate spec imen, under the conditions 
specified in ISO 306, modified as follows: 
− the depth of penetration is 0,1 mm; 
− the total thrust of 10 N is applied before the dial  gauge is set to zero or its initial reading noted. 
b)  The temperature limits to be considered for determining the temperature rises are: 
− under normal operating conditions, a temperature 10 °C  lower than the softening temperature as obtained 
under a); 
− under fault conditions, the softening temperature itself. 
NOTE 7 The table does not apply to components which comply with relevant IEC standards. 
NOTE 8 The possibility of raising the values for wires and cables insulated with heat-resistant polyvinyl chloride 
is under consideration. 
 
18 Making and breaking capacity 
This clause of part 1 applies except as follows. 
Replacement of the text before 18.1: 
Electronic switches shall have a dequate making and breaking capacity. 
NOTE 1 Where the term “switch” is used in part 1, this  term is replaced by “cont act mechanism” as appropriate. 
NOTE 2 In the case of electronic switches using relays , the relay is operated at the specified rate of operation 
with the appropriate load(s) as in normal use. 
This test is carried out only on electronic swit ches provided with mechanically or electro-
mechanically operated contact mechanisms. 
Contact mechanisms shall have adequate making and breaking capacity. The test is made on three separate specimens  of the complete contact mechanism. 
Compliance is checked by the following tests: 
– for electronic switches for the control of fl uorescent lamps loads, as specified in 18.1 
of part 1; 
– for electronic switches for the control of mo tor speed control circuits, as specified in 
18.1 of part 1 and, additionally, in 18.101; SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
25 
 – for electronic switches for the control of the voltage of iron core transformers for extra 
low-voltage incandescent lamps, as specifi ed in 18.1, 18.2 of part 1 and 18.102; 
– for electronic switches for the control of  the voltage of electronic step-down 
converters for extra low-voltage incandescent la mps, as specified in 18.2 of part 1. 
– for electronic  switches for the control of othe r types of loads, as specified in 18.1 and 
18.2 of part 1. 
NOTE 3 For electronic switches whose cycle of operation is limited by thei r application (for example, passive 
infra-red, time delay electronic switches, etc.), the ra te of operation during the tests may be specified by the 
manufacturer. 
The tests are made by means of an apparatus the pr inciple of which is shown in figure 12 and 
which is arranged to simulate normal operation. 
The connections are as shown in figure 13. Electronic switches are fi tted with conductors as for the test of clause 17. 
For electronic RCS, Clause 18 of IEC 60669-2-2 applies. 
18.1  Addition after the second paragraph: 
For electronic switches whose rate of operation is limited by their application (for example, heat or 
light sensors), the rate of operation is as follows. The electronic switch is set to the shortest cycle time 
possible. The electronic switch is re-activated at t he end of each cycle within a time of (2 ± 0,5) s. 
Addition:  
For electronic TDS, Subclause 18.1, 2
nd paragraph, of IEC 60669-2-3 applies at the following 
conditions: 
For electronic TDS whose rate of operation is lim ited by their application (for example, heat 
or light sensors), the rate of operation is as fo llows. The electronic TDS is set to the shortest 
cycle time possible. The electronic switch is re-activated at the end of each cycle within a 
time of (2 ± 0,5) s.  
All other electronic TDS are subjected to 200 operations at a uniform rate of  
– 30 operations per minute if the rated current does not exceed 10 A;  
– 15 operations per minute if the rated current exceeds 10 A but is less than 25 A;  – 7,5 operations per minute if the rated current is 25 A or more.  
18.101  The contact mechanism is subjected to tests of 50 cycles of operation, each at rated 
voltage and at the rate of operations  specified in 18.1 of part 1 : 
– the contact mechanism closes a circuit through which a current of 9 l
n (cos ϕ = 0,8 ± 0,05) 
passes, this current being interrupted by means of an auxiliary switch 50 ms to 100 ms 
after each closure;  
– the circuit through which a current of 6 ln (cos ϕ = 0,6 ± 0,05) passes is closed by an 
auxiliary switch and opened by the contact mechanism 300 ms to 500 ms after each 
closure.  
NOTE 1 In is the rated current of the electronic switch. 
NOTE 2 If the electronic switch has a rated load instead of a rated current, In is calculated under the assumption 
that the power factor (cos ϕ) of the motor load is 0,6. 
During the tests, no sustained arcing shall occur. 
After these tests, the specimens shall sh ow no damage impairing their further use. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
26 
 18.102  Electronic switches for control of the volt age of iron core transformers for extra low-
voltage incandescent lamps (for example, halogen) shall be subjected to the following test. 
The test is made on three specimens. The contact mechanism is subjected to 50 maki ng operations, each at rated voltage and at 
the rate of operation as specified in 18.1 of part 1. 
To simulate making, the test circuit shall be adjusted to a test current 10 times the rated 
current of the electronic switch for one half-cycle of the power supply frequency. 
During the tests, no sustained arcing shall occur. After the tests, the specimens shall show  no damage impairing their further use. 
NOTE  Tests for electronic switches which c an be operated with a transformer on no-load are under 
consideration. 
19 Normal operation 
This clause of part 1 applies except as follows. 
Replacement: 
Electronic switches shall withstand, without excessive wear or other harmful effect, the 
mechanical, electrical and thermal stresses occurring in normal use. 
Compliance is checked by the tests of 19.101 , 19.102, 19.103, 19.104 and 19.105, during 
which the electronic switches are tested at rate d voltage and loaded as specified in clause 
17, unless otherwise specified. 
For general purpose electronic switches with included automatic function the number of 
operations for tests of Subclauses 19.101, 19.102 and 19.104 is that specified in the relevant 
subclause. If a manufacturer declares a number of  operations higher than those indicated in 
the relevant subclause, the tests shall be made according to the declared value.  
NOTE For the purpose of this test, the manufacturer c an provide the specimens with  a special circuit that 
simulates the automatic operations.  
Electronic switches which are provided with connecting means for one or more electronic 
extension units are tested with one electronic extension unit connected, the connecting 
conductors being (1 ± 0,1) m long. 
NOTE For electronic  switches whose cycle of operation is limited by their applications (for example, passive 
infrared, time delay electronic switches, etc.), the ra te of operation during the tests may be specified by the 
manufacturer. 
For electronic RCS, Subclause 19.1 of IEC 60669-2-2 applies. 
For electronic TDS, Subclause 19.1 of IEC 60669-2-3 applies. During the test, the specimens shall function correctly. 
After the tests, the specimen shall withstand the following: 
− an electric strength test as specified in cl ause 16, the test voltage of 4 000 V being, 
however, reduced by 1 000 V and the other test voltages by 500 V, except for the specimens tested in 19.102 where no elec tric strength test is performed; 
− a temperature rise test as specified in clause 17. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
27 
 The specimens shall then not show 
– wear impairing their further use; 
– discrepancy between the position of the act uating member and that of the moving 
contacts, if any, if the position of the actuating member is indicated; 
– deterioration of enclosures, insulating linings  or barriers to such an extent that the 
electronic switch cannot be further operated or  that the requirements of clause 10 are no 
longer complied with; 
– loosening of electrical or  mechanical connections; 
– seepage of sealing compound; – relative displacement of the moving contacts  of electronic switches of pattern number 2. 
NOTE 1 The humidity treatment according to 15.3 is not  repeated before the electric strength test of this 
subclause. 
NOTE 2 During the test, the s pecimens are not lubricated. 
19.101  Contact mechanisms incorporated in electronic switches intended for incandescent 
lamp circuits are subjected to the following test. 
The test is made on three separate specimens  of the complete contact mechanism. 
The circuit details and the manner of operation of  the selector switch S are as described in 
18.1, unless otherwise specified. 
The number of operations is 40 000. The rate of operation is as specified in 18.1. For rotary electronic switches intended to be operated in either direction, the actuating 
member is turned in one direction for half the total number of operations and in the reverse direction for the remainder.  
While testing one part, the other part is in the “off”  position. The test is followed by the test of 
14.3, if applicable. 
Contact mechanisms incorporated in electronic switches intended for motor speed control 
circuits are tested as above, but they clos e a circuit through which a current of 6 
× In (cos ϕ  
= 0,65 ± 0,05) passes and open a circuit through which a current of In (cos ϕ = 0,65 ± 0,05) 
passes, the ratio between recovery voltage Us and rated operational voltage Ue being 1,00 
(±10 %). 
19.102  Contact mechanisms incorporated in electronic switches, intended for fluorescent 
lamp circuits or other capacitive loads (for exampl e, electronic ballasts) are tested as in 19.2 
of part 1 with the following modification. 
This is not applicable to dimmers for step-down converters as these accessories are tested 
according to 19.101.  
Replacement, in 19.2 of part 1, of the first dashed text by 
– a capacitor bank C 1, giving a capacitance according to table 103. The capacitors shall be 
connected with 2,5 mm² conductors having the shortest possible length; SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
28 
 Table 103 – Relationship between rated current and capacitance  
Rated current 
A Capacitance 
µF 
Up to and including 1 12 
Up to and including 2 24 
Up to and including 3 35 
Up to and including 4 48 
Up to and including 5 58 
Up to and including 6 70 
Up to and including 7 77 
Up to and including 8 96 
Up to and including 9 105 
Up to and including 10 140 
 
Replacement, in 19.2 of part 1, of the 5th paragraph after the note, by:  
The number of operations is as follows. 
For electronic switches with a rated fluorescent  lamp current up to and including 10 A: 
10 000 operations with 30 operations per minute. 
19.103  Semiconductor switching devices and/or electr onic regulating units incorporated in 
electronic switches are subjec ted to the following tests. 
NOTE Examples of electronic regulating units are controls used for the adjustment of time , light level, sensitivity, 
etc, of the device. 
The electronic switch is loaded with rated l oad until steady-state temperature at 1,1 times 
rated voltage is reached. 
The switch state of the electronic switch is changed 10 times and/or the setting value is 
altered 10 times over the whole range from minimum to maximum and back to minimum by means of the sensing surface or unit. 
Additionally, where appropriate, the switch state of the electronic switch is changed 10 times 
and/or the setting value is altered 10 times over the whole range from minimum to maximum and back to minimum by means of an electronic extension unit. 
19.104  Mechanical control units incorporated in el ectronic switches are subjected to the 
following test . 
The electronic switch is loaded with its rated load and the voltage is then increased to 1,1 
times the rated voltage, the setting is altered 10 000 times over the whole range from minimum to maximum and back to minimum by means of its control unit, the rate of operation being between 10 and 15 operations per minute. 
Mechanical control units are push buttons, potentio meters, etc, requiring a manual operation. 
19.105 For electronic switches for which a minimu m load or current is specified by the 
manufacturer, the characteristic is additionally  tested with the specified minimum load or 
current at 0,9 times rated voltage. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
29 
 The switch state of the electronic switch is changed 10 times and/or the setting value is 
altered 10 times over the whole range from minimum to maximum and back to minimum. 
In addition, where appropriate, the switch state of the electronic switch is changed 10 times 
and/or the setting value is altered 10 times over the whole range from minimum to maximum and back to minimum by means of an electronic extension unit. 
19.106  For electronic RCS, Subclause 19. 101 of IEC 60669-2-2 applies. 
For electronic TDS, Subclause 19.101 of IEC 60669-2-3 applies. 
19.107 For electronic TDS, Subclause 19 .102 of IEC 60669-2-3 applies. 
19.108 For electronic TDS, Subclause 19 .103 of IEC 60669-2-3 applies. 
20 Mechanical strength 
This clause of part 1 applies. 
21 Resistance to heat 
This clause of part 1 applies. 
22 Screws, current-carrying parts and connections 
This clause of part 1 applies.  
23 Creepage distances, clearances and distances through sealing compound 
This clause of part 1 applies except as follows. 
Addition: The values given in items 1, 2, 6 and 7 of tabl e 20 apply to terminals for external wiring and 
do not apply to other live parts which are prot ected by a directly associated fuse with 
adequate breaking capacity or other current-limit ing means, under the provision that the 
requirements of clause 101 are fulfilled. If there is no directly associated fuse, or other 
current-limiting means, the electronic switch shall comply with table 20. 
NOTE 1 Directly associated fuses and current-limiting m eans are devices inserted in the circuit whose primary 
function is to protect the electronic switch.  
NOTE 2 A directly associated fuse and/or current-lim iting means need not necessarily be incorporated in the 
electronic switch. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
30 
 Addition of the following items to Table 20: 
Creepage distances  
101 For creepage distances across which nominal voltages up to 50 V a.c. or d.c. occur a) b), and which 
voltages are generated in a circuit by supply from a safety isolating transformer according to 
IEC 61558-2-6 or by a supply equivalently  separated from the mains supply  
– on printed wiring material - pollution degree 1: – on printed wiring material - pollution degree 2 – on other insulating material- across in sulating material of Material Group I 
– on other insulating material - across in sulating material of Material Group II 
– on other insulating material - across in sulating material of Material Group III   
 
  0,025 0,04 0,6 0,85 1,2 
Clearance distances 
102 For clearance distances across wh ich nominal functional voltages up to 50 V a.c. or d.c. occur a), and 
which voltages are generated in a circuit by supply fr om a safety isolating transformer according to 
IEC 61558-2-6 or by a supply equivalently electrica lly separated from the mains supply in an equally 
effective manner:  – pollution degree 1: – pollution degree 2:   
 
   0,1 mm 0,2 mm 
NOTE 1 The values for the clearances are bas ed on IEC 60664-1, Table F.2, using as input 
– the rated impulse voltage of 800 V derived from IEC 60664-1, Table F.1, for a line to neutral voltage of 50 V a.c. or 
d.c. and overvoltage category III and Case A (inhomogeneous field),  
– pollution degrees 1 and 2. The values for creepages are based on IEC 60664-1 Table F.4 with  the input of voltage rationalized for Table F.4 of 50 
V r.m.s from IEC 60664-1 Table F.3a for a nominal voltage of the supply system of 50 V. 
NOTE 2 For the definition of nominal voltage, see IEV 601-01-21. 
a) For the purposes of this standard the following applies (taken from IEC 60664-1): 
Micro-environment: the immediate environment of the insula tion which particularly infl uences the dimensioning of 
creepage distances (IEC 60664-1) 
Pollution degree: a numeral characterizing the expec ted pollution of the micro-environment (IEC 60664-1)  
Pollution degree 1: no pollution or only dry, non-conducti ve pollution occurs. The pollution has no influence. 
On printed wiring boards of RCS, it is acceptable to us e pollution degree 1 if the printed wiring board is protected 
against any occurrence of condensation and deposition of conductive, hydroscopic, or soluble dust. This usually can be 
achieved only if the printed wiring board and/ or circuits are coated and the coating complies with the specifications of 
IEC 60664-3 and an additional encapsulat ion, or by sealing of the whole printed wiring board assembly by a protective 
coating. 
Pollution degree 2: only non-conductive pollu tion occurs except that occasionally  a temporary conductivity caused by 
condensation is to be ex pected (see IEC 60664-1). 
On printed wiring boards of RCS, it is acceptable to use po llution degree 2, if the printed wiring board and/or circuit is 
coated and the coating complies with the specifications of IEC 60664-3. 
This standard classifies insulating materials acco rding to their PTI values into four groups: 
Material Group I  600 ≤ PTI 
Material Group II  400 ≤ PTI < 600 
Material Group IIIa  175 ≤ PTI < 400 
Material Group IIIb  100 ≤ PTI < 175 
Material Group III includes Material  Group IIIa and Material Group IIIb 
A material shall be included in one of the four groups above on the basis that its PTI, established by the method of 
IEC 60112 using solution A is equal or greater t han the lower value specified for the group. 
b) Values of creepage distances for prin ted wiring boards are given for polluti on degrees 1 and 2. For other insulating 
materials only the values for creepage dist ances for pollution degree 2 are allowed. 
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
31 
 23.101  For electronic switches having a control circuit suitable for connection to a SELV 
supply, the switching circuit being supplied with a voltage greater than the SELV, creepage distances and clearances between control and switching circuits shall not be less than 5,5 mm.  
In case of electronic RCS and electronic TDS cl assified according to 7.103, see the relevant 
requirements in IEC 60669-2-2 and IEC 60669-2-3 for clearance and creepage distances 
between SELV and mains. 
23.102 If the enamel of the wire is at least grade 1 according to the IEC 60317 series, the 
clearances between the wire of the control co il, the live parts of different polarity and 
exposed conductive parts may be reduced to a va lue equal to two-thirds of the clearances 
required in the absence of enamel.  
24 Resistance of insulating material to abnormal heat, to fire and to tracking 
This clause of part 1 applies.  
25 Resistance to rusting 
This clause of part 1 applies.  
26 EMC requirements 
This clause of part 1 applies except as follows. 
Replacement: 
Electronic switches shall be designed to ope rate correctly under the conditions of 
electromagnetic environment in which they are int ended to be used. This applies particularly 
for electronic switches intended to be connected to  a.c. low-voltage public supply systems 
where the design shall take into account the normal disturbances on the supply system, as 
defined by the compatibility levels given in IEC 61000-2-2. 
The tests are carried out with three new specimens (see table 101). For electronic switches, the manufacturer sha ll specify all details related to the load. 
Compliance is checked by the tests of 26.1 and 26.2. 
26.1 Immunity 
Electronic switches shall be designed so that t he switch state (on or off) and/or the setting 
value are protected against interference. 
For the following tests, the electronic switch is m ounted as in normal use in the relevant box, 
if any, as specified by the manuf acturer and is loaded as specified in clause 17 so that, at the 
rated voltage, the rated load will be obtained. 
For the purpose of this test, the electronic switch  is set to the measured or calculated value 
of the output power (r.m.s). 
A variation of less than ± 10 % is not considered to be a change of the setting. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
32 
 Each electronic switch is tested, if  applicable, in the following states: 
a) in the on-state, highest setting, 
b) in the on-state, lowest setting, c) in the off-state. 
The test parameters are referred to in table 104. 
Table 104 – Immunity tests 
Environmental phenomena Test specification Test set-up Sublause 
Voltage dips and short interrupti ons Table 105 IEC 61000-4-11 26.1.1 
Surge ± 1 kV and ± 2 kV (1,2/50) IEC 61000-4-5 26.1.2 
Fast transients (burst) Table 106 IEC 61000-4-4 26.1.3 
Electrostatic discharge ± 4 kV contact discharge 
± 8 kV air discharge IEC 61000-4-2 26.1.4 
Radiated electromagnetic field test 3 V/m IEC 61000-4-3 26.1.5 a 
Radio frequency voltage 3 V r.m.s. IEC 61000-4-6 26.1.6 a 
Power frequency magnetic field 3 A/m, 50 Hz IEC 61000-4-8 26.1.7 b 
a This test is applicable only to electronic switches  containing infra-red (IR)  receivers, radio-frequency 
receivers, passive infra-red (PIR) devices, devic es containing microprocessors or similar.  
b This test is applicable only to electronic switches c ontaining devices susceptible  to magnetic fields, for 
example, Hall elements, electrodynamic microphones, etc. 
 
NOTE In the following subclauses, the origi nal state is the state before the test.  
26.1.1 Voltage dips and short interruptions 
The electronic switch shall be tested with the te st equipment specified in IEC 61000-4-11 as 
specified in 26.1, in accordance with table 105, with a sequence of three dips/interruptions 
with intervals of 10 s minimum between each test event. 
Abrupt changes in supply voltage shall occur at zero crossings.  
The output impedance of the test voltage generator sh all be low, even during the transition. 
The change between the test voltage U T and the changed voltage is abrupt. 
NOTE 100 % UT is equal to the rated voltage. 
A test level of 0 % corresponds to a total supply voltage interruption. 
Table 105 – Voltage dip and short-interruption test values 
Test level 
% UT Voltage dip/interruptions 
% UT Duration 
(number of cycles at rated 
frequency)  
0 100 10 
40 60 10 
70 30 10 
 
During this test, the state of t he electronic switch may alter. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
33 
 Occasional flickering of lamps or irregular runn ing of motors during the test is neglected.  
After the test, the electronic switch shall be in  the original state and the setting shall be 
unchanged. 
After the test, the general purpose electronic swit ch with included automatic functions shall 
operate as intended.  
26.1.2 Surge immunity test for 1,2/50 wave impulses 
Electronic switches shall be tested for resist ance to unidirectional surges caused by 
overvoltages from switching and lightning transients. 
The test is carried out according to IEC 61000- 4-5 by applying two positive discharges and 
two negative discharges at each of the following angles 0°, 90°, 270°, at a repetition rate of (60 ± 5) s with an open-circuit test voltage of 1 kV (level 2). 
If the product has a metallic mounting surface w hen mounted as in normal use, the test is 
repeated between line and earth with a test voltage of 2 kV. 
During the test, the state of the electronic switch may alter.  
Occasional flickering of lamps or irregular runn ing of motors during the test is neglected. 
After the test, the electronic switch shall be in  the original state and the setting shall be 
unchanged. 
After the test, the general purpose electronic swit ch with included automatic functions shall 
operate as intended.  
26.1.3 Electrical fast transient/burst test 
Electronic switches shall be tested for resistance to repetitive fast transi ents/bursts on supply 
and control terminals/terminations. 
The test is carried out according to IEC 61000-4-4 with the following specification. 
The level of the repetitive fast transients cons isting of bursts coupled into the supply and 
control terminals/terminations of the electr onic switch is specified in table 106. 
Table 106 – Fast transient test values 
Open-circuit output test voltage ± 10 % 
Supply terminals/terminations Control terminals/terminations 
1 kV 0,5 kV 
 
The duration of the test shall be 1 min 05+ s for each positive and negative polarities. 
During the test, the state of t he electronic switch may alter. 
Occasional flickering of lamps or irregular runn ing of motors during the test is neglected. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
34 
 After the test, the electronic switch shall be in  the original state and the setting shall be 
unchanged. 
After the test, the general purpose electronic swit ch with included automatic functions shall 
operate as intended.  
26.1.4 Electrostatic discharge test 
Electronic switches mounted as in normal use shall withstand electrostatic contact and air 
discharges. The test shall be carried out with inca ndescent lamps. If the electronic switch is 
not intended to operate incandescent lamps, the test shall be carried out with only one load of the loads specified within t he manufacturer’s instructions. 
The test is carried out according to IEC 61000-4-2 by applying 10 positive and 10 negative 
discharges in the following manner: 
– contact discharge to the conductive surfaces and to coupling planes,  
– air discharge at insulating surfaces, if applicable. 
The static electricity discharges shall be appli ed only to such points and surfaces of the 
electronic switch which are accessible in normal use. 
The discharges are applied to the pre-selected points designated by the manufacturer, which 
shall include different material, if any. 
The following levels apply: 
– test voltage of contact discharge: 4 kV, 
– test voltage of air discharge: 8 kV. 
During the test, the state of the electronic switch may alter.  
Occasional flickering of lamps or irregular runn ing of motors during the test is neglected. 
After the test, the electronic switch shall be in  its original state and the setting shall be 
unchanged. 
After the test for electronic switches with a sens ing surface intended to be operated by touch, 
the state and/or setting may be altered, but it shall be possible to operate the electronic 
switch as intended. 
NOTE Certain electronic switches, for example, passive infra-red switches, PIR switches with an adjustable time 
delay device should be adjusted in such a way that the time delay is higher than the testing time. 
After the test, the general purpose electronic swit ch with included automatic functions shall 
operate as intended.  
26.1.5 Radiated electromagnetic field test 
This test is applicable only to electronic switches  containing infra-Rrd (IR) receivers, radio- 
frequency receivers, passive infra-red (PIR) dev ices, devices containing microprocessors 
or simi lar. 
Electronic switches shall withstand t he radiated electromagnetic field test. 
The test is carried out according to IEC 61000-4-3 by applying a field strength of 3 V/m in the 
frequency range 80 MHz to 1 000 MHz. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
35 
 During the test, the state of the el ectronic switch shall not change. 
Flickering of lamps or irregular running of motors during the test is not allowed. Flickering of 
lamps or irregular running of motors due to switching transients caused by frequency changes of the test equipment during the test procedure is neglected. 
After the test, the electronic switch shall be in  the original state and the setting shall be 
unchanged. 
In case of electronic time delay switches, the sw itch shall be in the original state after the 
time delay. 
After the test, the general purpose electronic swit ch with included automatic functions shall 
operate as intended. 
26.1.6 Radio-frequency voltage test 
This test is applicable only to electronic switches  containing infra-red (IR) receivers, radio- 
frequency receivers, passive infra-red (PIR) dev ices, devices containing microprocessors 
or similar.  
Electronic switches shall withstand the radio-frequency voltage test. 
The test is carried out according to IEC 61000-4-6 by applying a conducted radio-frequency 
voltage of 3 V r.m.s. on supply lines and control lines. 
During the test, the state of the el ectronic switch shall not change. 
Flickering of lamps or irregular running of motors during the test is not allowed. Flickering of 
lamps or irregular running of motors due to switching transients caused by frequency changes of the test equipment during the test procedure is neglected. 
After the test, the electronic switch shall be in  the original state and the setting shall be 
unchanged.  
After the test, the general purpose electronic swit ch with included automatic functions shall 
operate as intended. 
26.1.7 Power-frequency magnetic field test 
This test is applicable only to electronic switc hes containing devices susceptible to magnetic 
fields, for example, Hall elements, electrodynamic microphones, etc. 
Electronic switches shall withstand the power frequency magn etic field test. 
The test is carried out according to IEC 61000-4- 8 by applying a magnetic field of 3 A/m, 
50 Hz. 
During the test, the state of the el ectronic switch shall not change. 
Occasional flickering of lamps or irregular runni ng of motors during the test is not allowed. 
Flickering of lamps or irregular running of moto rs due to switching transients caused by 
frequency changes of the test equipment during the test procedure is neglected. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
36 
 After the test, the electronic switch shall be in  the original state and the setting shall be 
unchanged.  
After the test, the general purpose electronic swit ch with included automatic functions shall 
operate as intended. 
26.2  Emission  
26.2.1 Low-frequency emission 
Electronic switches shall be so designed that they do not cause excessive disturbances in 
the network. 
Requirements are deemed to be met if the electr onic switch complies with IEC 61000-3-2 and 
IEC 61000-3-3. 
NOTE 1 Electronic switches other than those incorporating automatic controls  giving rise to fluctuation of the 
firing angle, for example, automatic systems to be us ed in dance halls, discos and the like, are deemed to meet 
the requirements of IEC 61000-3-3 without need for testing. 
NOTE 2 According to clause C.6 of IEC 61000-3-2,  there is no need to test independent dimmers for 
incandescent lamps up to and including 1 000 W. Electronic switches with semiconductor switching for the load 
current are regarded as dimmers. 
Electronic switches with electromechanically operated contact mechanism (for example, a 
relay), do not cause harmonic current emissions and are deemed to meet the requirements of IEC 61000-3-2 without need for testing. 
26.2.2 Radio-frequency emission 
Electronic switches shall be so designed that t hey do not cause excessive radio interference. 
The electronic switch shall comply with the requirements of CISPR 14 or CISPR 15. For 
electronic switches used for electrical lighting application, CISPR 15 applies. 
Subclauses 8.1.3.1 and 8.1.3.2 of CISPR 15 are applicable with the following modifications. 
Compliance is checked as follows: 
a) At the main terminals (8.1.3.1 of CISPR 15) 
An initial survey or scan of the complete frequency range 9 kHz to 30 MHz shall be made 
in on-state at the highest setting. In addition, the following frequencies and at all frequencies at which there is a local maximum disturbances above the predetermined level of 6 dB below the limits given in CISPR 15, the control setting shall be varied for maximum disturbance while connected to the maximum load: 
9 kHz, 50 kHz, 100 kHz, 150 kHz, 240 kHz, 550 kHz, 1 MHz, 1,4 MH z, 2 MHz, 3,5 MHz, 
6 MHz, 10 MHz, 22 MHz and 30 MHz. 
b) At the load and/or control terminals (8.1.3.2 of CISPR 15 ). 
An initial survey or scan of the complete frequency range 150 kHz to 30 MHz shall be 
made in on-state at the highest setting. In addition, the following frequencies and at all 
frequencies at which there is a local maximum disturbances above the predetermined level of 6 dB below the limits given in CISPR 15, the control setting shall be varied for maximum disturbance while connected to the maximum load: 
150 kHz, 240 kHz, 550 kHz, 1 MHz, 1,4 MHz, 2 MHz, 3,5 MHz, 6 MHz, 10 MHz, 22 MHz 
and 30 MHz. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
37 
 101 Abnormal conditions 
Electronic switches shall not creat e hazard under abnormal conditions. 
Compliance is checked by the tests s pecified in 101.1, 101.2 and 101.3. 
NOTE For these tests, additional components of  the electronic switch may be necessary. 
101.1  When electronic switches are operated under abnormal conditions no part shall reach 
such a temperature that there is danger of fire to the surroundings of the electronic switches. 
Compliance is checked by subjecting the electr onic switches to a heating test under fault 
conditions, as described in 101.1.1. 
During the test, the temperature rises shall not exceed the values given in table 102, column 
concerning clause 101. 
101.1.1  Unless otherwise specified, the tests are ma de on electronic switches while they 
are mounted, connected and loaded as specified in clause 17. 
Each of the abnormal conditions indicated in 101.1.1.1 and 101.1.1.2 is applied in turn. 
NOTE Other faults may occur during t he test, which are a direct consequence. 
The abnormal conditions are applied in the order which is the most convenient for testing. 
101.1.1.1  The following fault conditions shall be simulated: 
– short circuit across creepage distances and clea rances, other than those complying with 
the requirements in clause 23, if they are less than the values given in Figure 10 of IEC 60065; 
– short circuit across insulating coating consis ting, for example, of lacquer or enamel. 
Such coatings are ignored in assessing the creepage distances and clearances. 
If enamel forms the insulation of a conductor and withstands the voltage test prescribed for 
grade 2 in clause 13 of IEC 60317-0-1, it is considered as contributing 1 mm to those creepage distances and clearances. 
NOTE 1 The change of grade 2 is under consideration. 
– short circuit or interrupti on of semiconductor devices; 
NOTE 2 Semiconductors (for example, microcontrollers, integrated circuits, et c.) used in the control circuit of an 
electronic switch are only short-circui ted and interrupted at the supply pins. 
– short circuit of electrolytic capacitors; 
– short circuit or interruption of capacitors or resistors which do not comply with the 
requirements of clause 102; 
– short circuit of the terminals on the load side. 
If a fault condition simulated during the test in fluences other fault conditions, all these fault 
conditions are applied simultaneously. 
If the temperature of the electronic switch is lim ited by the operation of automatic protective 
devices (including fuses), the temperature is measured 2 min after the operation of the device. 
If no temperature-limiting device operates, the te mperature is measured after a steady state 
has been reached or after 4 h, whichever is the shorter time. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
38 
 If the temperature is limited by a fuse, in case of  doubt, the following additional test is carried 
out: the fuse is short-circuited and the current  under the relevant fault conditions is 
measured. 
The electronic switch is then switched on for a duration corresponding to the maximum fusing 
time of the type of fuse as specified by IEC 60127 corresponding to the current measured 
above. The temperature is measured 2 min after the end of the period. 
101.1.1.2  The following overload tests are carried out, where applicable. 
The tripping current of the protective devices (e .g. fuses, automatic protective devices, etc.) 
to be used for the verification of electronic swit ches without incorporated temperature-limiting 
devices and without incorporated fuses shall be in relation with the rated current of protective 
device, specified by the manufacturer, int ended to protect the electronic switch. The 
manufacturers should specify in their instructi on sheets the information of the protective 
device which is intended to protect the elec tronic switch (see 8.8 of IEC 60669-1:1998).  
Electronic switches without incorporated temperature-limiting devices and without 
incorporated fuses are loaded for 1 h with the conventional tripping current for the fuse which, in the installation, w ill protect the electronic switch. 
Electronic switches protected by  automatic protective devices (including fuses) are loaded in 
such a way that the current through the electronic switch is 0,95 times the current with which 
the protecting device releases after 1 h. 
The temperature rise is measured after a steady state has been reached or after 4 h, 
whichever is the shorter time. 
Electronic switches protected by incorporat ed fuses complying with IEC 60127 shall have 
those fuses replaced by links of negligible impedance and shall be loaded in such a manner that the current through the links shall be 2, 1 times the rated current of the fuse. 
The temperature rise is measured after the elec tronic switch has been loaded for 30 min. 
Electronic switches protected both by enclosed fuses and by automatic protective devices are 
loaded either as described above with incorporated fuses or with another automatic protective device, choosing the test requiring the lower load. 
Electronic switches protected by  automatic protective devices which will short-circuit only in 
case of overload shall be tested both as electroni c switches with automatic protective devices 
and as electronic switches without  automatic protective devices. 
101.2  Protection against electric shock is required,  even though an electronic switch is 
being used or has been used during fault conditions. 
Compliance is checked by carrying out the tests of clause 10 immediately following the test 
of 101.1. 
101.3  Electronic switches shall, without endangerin g their surroundings, withstand the short 
circuits they may be subjected to in the load circuit. 
Compliance is checked by the following test. The electronic switch is tested in a substantially  non-inductive circuit in series with a load 
impedance and a device for limiting the let-through I
2t. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
39 
 The prospective short-circuit current of the suppl y shall be 1 500 A r.m.s. at a voltage equal 
to the rated voltage of the electronic switch under test. 
The prospective let-through I2t value shall be 15 000 A2s. 
NOTE 1 The prospective current is a current that would fl ow in the circuit if the electronic switch, the limitation 
device and the load impedance were replaced by links of negligible impedance without any other change in the 
circuit. 
NOTE 2 The prospective I2t value is a value that would be let through by the current limiting device if the 
electronic switch and the load impedance were replaced by links of negligible impedance. The I2t value may be 
limited by using an open wire fuse, an ignitron or other suitable devices. 
NOTE 3 The I2t value of 15 000 A2s corresponds to an unfavourable let-through I2t value of 16 A miniature 
circuit-breakers measured at 1 500 A pr ospective short-circuit current.  
The diagram of the circuit in which the electroni c switch is tested is shown in figure 102. 
The impedance Z 1 (short-circuit impedance) shall be adju stable to satisfy the specified 
prospective short-circuit current. 
The impedance Z 2 (load impedance) shall be so adjusted that the electronic switch is loaded 
with its minimum load or with approximately 10 % of the rated load, whichever is the higher. 
NOTE 4 A load is necessary for the electronic switch to be in the on-state. 
The circuit is calibrated with the following tolerances: current 05+ %, voltage 010+ %, frequency 
±5 %, I2t value ± 10 %. 
The incorporated fuse, if any, recommended by the manufacturer, is inserted into the 
electronic switch which is loaded. The variable c ontrol, if any, is set at the position of 
maximum output. 
The short circuit is caused six times by the auxiliary switch A without any synchronizing with 
respect to the voltage wave. 
NOTE 5 Six tests are made in view of the need to  avoid the complication on point-on-wave timing. 
NOTE 6 Experience shows that at least one of these tests will result in near maximum total I2t. 
During the test, emission of flames or burning particles shall not occur. 
After the test, accessible metal parts shall not be live. It is not necessary for the specimens to remain in operating condition. However, the contacts 
of any incorporated automatic protective device shall not be welded, unless the electronic switch is obviously useless. 
The six tests may be carried out on the same specimen provided that, with the replacement 
of an incorporated fuse, the electronic switch is still capable of operation. Otherwise, new 
specimens shall be used until a total of six tests have been completed. 
101.4 For electronic RCS, Clause 101 of IEC 60669-2-2 applies. 
For electronic TDS, Clause 101 of IEC 60669-2-3 applies. 
102 Components 
Components which, if they fail, may impair the sa fety of the electronic switch shall comply 
with the safety requirements specified in the relevant IEC standards as far as applicable. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
40 
 If components are marked with their operating ch aracteristics, the conditions under which 
they are used in the electronic switch shall be in accordance with these markings, unless a specific exception is made in this standard. 
The testing of components which have to comply wi th other standards is, in general, carried 
out separately, according to t he relevant standard, as follows. 
If the component is marked and used in accordance with its marking, the number of 
specimens is that required by the relevant standard. 
Where no IEC standard exists, or where the comp onent is not marked or is not used in 
accordance with its marking, the component is tested under the conditions occurring in the 
electronic switch, the number of specimens being, in general, that required by the relevant 
standard. 
Components incorporated in the electronic swit ch are subjected to all the tests of this 
standard as parts of the electronic switch. 
 
102.1 Fuses 
Fuses, if any, shall comply with IEC 60127 or other relevant IEC publications and have a 
rated breaking capacity of 1 500 A, unless any fa ult current through the fuse is limited to 35 
A. 
102.2 Capacitors  
Capacitors,  
− the short-circuiting or disconnection of whic h would cause an infringement of the 
requirements under fault conditions with regard to shock or fire hazard,  
− the short-circuiting of which would cause a current of 0,5 A or more through the 
terminals of the capacitor, 
− for suppression of electromagnetic interference,  
shall comply with IEC 60384-14 and shall be in accordance with table 107.  
NOTE Capacitors passing the damp heat steady-state test spec ified in 4.12 of that standard with a duration of not 
less than 21 days are considered acceptable  
These capacitors shall be marked with their rated voltage in volts (V), their rated capacitance 
in microfarads (µF) and their reference temperature in degrees Celsius (°C). 
When determining the current, fuses and relevant capacitors are considered to be short-
circuited.  
For other protective devices, t he resistive element is to be replaced by an equivalent 
impedance. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
41 
 Table 107 – Capacitors  
 
  
Application of capacitor  Approved type(s) of capacitor according to IEC 60384-14  
Un ≤ 125 V  125 V < Un ≤ 250 V  
Without 
overcurrent 
protection  With overcurrent 
protection a 
Between live conductors  
(L or N) and earth (PE)  Y4 Y2 Y2 
Between live conductors  
(L and N or L1 and L2): 
− without impedance in series 
− with impedance in series, which, when 
capacitor(s) is (are) shor t-circuited, limits the 
current to a value of  
  • 0,5 A and higher   • below 0,5 A   
 
X2   
X3 
Any type   
 
X1   X2 Any type   
 
X2   X3 Any type  
a External to the capacitor or built into t he capacitor (for example, a fusing resistor).  
 
102.3 Resistors 
Resistors, the short-circuiting or interruption of which would cause an infringement of the 
requirements with regard to the protection against fire and electric shock in case of a defect, 
shall have an adequately constant value under the overload conditions prevailing in the 
electronic switch. 
These resistors shall comply with the requireme nts of 14.1 of IEC 60065, modified with 
regard to the reference temperature of the resist or in the electronic switch (see clause 17). 
NOTE Additional requirements are under cons ideration for composite-type resistors. 
102.4 Automatic protective devices (other than fuses) 
Automatic protective devices shall be in complianc e with IEC 60730, as far as that standard 
is applicable and with additional requirements s pecified in 102.4.1 for automatic protective 
devices which switch off the current (hereinafter called cut-outs) and in 102.4.2 for automatic protective devices which only decrease the current. 
102.4 .1 Cut-outs shall have adequate making and breaking capacity. 
Compliance is checked by subjec ting three specimens to the tests of 102.4.1.1 or 102.4.1.2. 
If the cut-out in the electronic switch is subject ed to a reference temperature above 55 °C, according 
to clause 17, the specimens are test ed at this reference temperature.  
During the test, the other conditions shall be si milar to those occurring in the electronic 
switch. 
During the test, no sustained arcing shall occur. After the test, the specimens shall show no dam age impairing their further use or the safety 
of the electronic switch. 
The switching frequency of the cut-out may be increased above the normal switching 
frequency inherent to the electronic switch, provided  that no greater risk of failure of the cut-
out is induced. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
42 
 If it is not possible to test the cut-out separatel y, it will be necessary to submit additional 
specimens of the electronic switch  in which the cut-out is used. 
102.4.1.1  Non-self-resetting cut-outs in the load circuit of the electronic switch are tested at 
1,1 times the rated voltage of the electronic switch and with loads as specified below. 
The cut-outs are reset after each operation and thus caused to operate 10 times 
successively. 
– Cut-outs in electronic switches for incande scent lamps are tested in a non-inductive 
circuit and are loaded with 2,1 times the rated curre nt of the protecting fuse (if this fuse is 
in accordance with IEC 60127) or with the rele vant conventional fusing current for other 
fuses. 
– For cut-outs in electronic switches for fluorescent lamps, tests shall be carried out in the 
same way as for electronic switches for incandescent lamps. 
– Cut-outs in electronic switches for speed cont rol circuits are subjected to two series of 
10 operations. 
In the first series, the cut-out under test clos es a circuit through which a current of 9 ln (cos ϕ 
= 0,8 ± 0,05) passes, this current being interrupted  by means of an auxiliary switch 50 ms to 
100 ms after each closure. 
In the second series, the circuit through which a current of 6 ln (cos ϕ = 0,6 ± 0,05) passes is 
closed by an auxiliary switch and open ed by the cut-out under test. 
NOTE 1 The values 6 ln and 9 ln are provisional. 
NOTE 2 “ In” is the rated current of the electronic switch. If the electronic switch has a rated load instead of a 
rated current, In is calculated under the assumption that cos ϕ of the load is 0,6.  
102.4.1.2  Self-resetting cut-outs in the load circuit of  the electronic switch are tested at 
1,1 times the rated voltage of the electronic switch and with loads as specified below: 
– cut-outs in electronic switches for incandescent lamps are operated automatically for 
200 cycles in a non-inductive circuit and are lo aded with 2,1 times the rated current of the 
protective fuse (if this fuse is in accordance with IEC 60127) or with the relevant conventional fusing current for other fuses. 
NOTE For cut-outs in electronic switches for fl uorescent lamps, tests are under consideration. 
During the tests of 102.4.1, no sustained arcing shall occur. 
After the tests of 102.4.1, the specimens shall show no damage impairing their further use or 
the safety of the electronic switch. 
The cut-outs shall withstand for 1 min a test voltage between the open contacts, the voltage 
being 
– for cut-outs in electronic switches fo r incandescent lamp circuits: 500 V; 
– for cut-outs in electronic switches for speed control circuits: 1 200 V for rated voltages up 
to 130 V and 2 000 V for rated voltages above 130 V. 
102.4.2  Automatic protective devices which only de crease current to the electronic switch 
are tested as follows. 
The electronic switch is loaded for 4 h with a current as given in clause 17. At the end of this 
period, the load is increased by closing an auxiliary switch which increases the load so that the prospective current through the electronic sw itch will be 2,1 times the rated current of 
the protective fuse (if the fuse is in accordanc e with IEC 60127) or the relevant conventional 
tripping current for other fuses. SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
43 
 The auxiliary switch is closed for 30 min and then opened until the current through the 
electronic switch is stabilized to the original val ue, after which the auxiliary switch is closed 
again. 
This procedure is repeated 10 times. After this test, the device shall function correctly. Compliance is checked by an additional test according to clause 17. 
102.5 Transformers  
Transformers intended for SELV circuits shall be of  the safety isolating type and shall comply 
with the relevant requirements of IEC 61558-2-6.  
NOTE For the use of SELV and PELV, see IEC 61140 and IEC 60364-4-41.  
 
100
∅4
IEC   1523/0220 ± 0,1
4
  0
–0,05
  0
–0,1
 
Dimensions in millimetres 
Figure 101 – Test pin for checking the protection against electric shock 
 
Z1
Z2LS
A
IEC   1524/02  
Components 
Z1 impedance for adjusting the prospective short-circuit curr ent (non-inductive) 
Z2 impedance for adjusting the l oad current (non-inductive) 
L limiting device for the prospective let-through I2t 
S specimen A auxiliary switch for causing the short circuit 
Figure 102 – Circuit diagram for testing electronic switches according to 101.3 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
44 
 Annex A  
(normative) 
 
Survey of specimens needed for tests 
 
Annex A of part 1 applies. 
 
 
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
45 
 Annex B  
(normative) 
 
Additional requirements for switches having facilities for 
the outlet and retention of flexible cables 
 
Annex B of Part 1 applies except as follows.  
13 Constructional requirements  
13.16  Addition after the first paragraph:  
The cross-sectional area of external flexible cables connected between electronic switches 
and its associated control units and the like can be less if the current in the unit is limited by 
current limiting means. The minimum cross-sectio nal area is shown in Table B.1. Flexible 
cables shall comply with IEC 60245-4, code des ignation 60245 IEC 66, or IEC 60227-5, code 
designation 60227 IEC 53. 
NOTE The requirement for the insulation of the cable is  not applicable to flexible cables supplied at SELV.  
Table B.1 – Maximum current and minimum cross-sectional area  
Maximum current A  Minimum cross-sectional area  
mm2
  
Up to and including 0,2 No requirements 
Up to and including 6 0,75 
Up to and including 10 1,0 
Up to and including 16 1,5 
 
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
46 
 Annex AA 
(informative) 
 
Examples of types of electroni c switches and their functions 
 
Electronic switches* Functions 
Touch switch, etc. Electronically operated semi conductor switching device 
Electronically operated mechanical switching device 
Light dimmer, etc. 
Speed controller, etc. Mechanically operated regulator with an electronic control 
circuit  
Electronically operated regulator with an electronic  control circuit 
Light dimmer, etc., with switch Speed controller, etc., with switch Mechanically operated regulator with an electronic control 
circuit and a mechanical switching device 
Mechanically operated regulator with an electronic control circuit and an electr onically operated mechanical 
switching device 
Mechanically operated regulator with an electronic control circuit and a semiconductor switching device 
Electronically operated regulator with an electronic control circuit and a semi conductor switching device 
Electronically operated regulator  with an electronic control 
circuit and an electronically operated mechanical switching device 
Electronic switches incorporating heat or light sensors Electronically operated semi conductor switching device 
Electronically operated mechanical switching device 
* All electronic switches can be oper ated by auxiliary control circuits. 
 SAUDI ARABIAN STANDARD SASO IEC 60669-2-1/2008
 
47 
 Bibliography 
 
IEC 60050-601:1985, International Electrotechnical Vocabulary – Chapter 601: Generation, 
transmission and distribution of electricity – General  
IEC 60364-4-41, Low-voltage electrical installations – Part 4-41: Protection for safety – 
Protection against electric shock 
IEC 61058-1, Switches for appliances – Pa rt 1: General requirements 
IEC 61140, Protection against electric shock – Common aspects for installation and 
equipment   
 
  
___________