Switches for household and similar fixed electrical installations - Part 2-1: Particular requirements - Electronic switches

This clause of Part 1 is completely replaced by the following: This part of IEC 60669 applies to electronic control devices, a general term to cover electronic switches, home and building electronic systems (HBES) / building automation and control systems (BACS) switches and electronic extension units. It applies to electronic switches and to HBES/BACS switches, for alternating current (AC) only with a rated switching voltage not exceeding 250 V and a rated current not exceeding 16 A, intended for household and similar fixed electrical installations, either indoors or outdoors. It also applies to electronic extension units with a rated supply voltage not exceeding 250 V AC and 120 V DC, such as sensors and push buttons. This document also applies to electronic remote control switches (RCS) and electronic time delay switches (TDS). Particular requirements are given in Annex FF. Switches including only passive components such as resistors, capacitors, inductors, positive temperature coefficient (PTC) and negative temperature coefficient (NTC) components, varistors, printed wiring boards and connectors are not considered as electronic control devices. This document also applies to electronic switches and HBES/BACS switches for the operation of lighting equipment circuits and the control of the brightness of lighting equipment (dimmers) as well as the control of the speed of motors (for example, those used in ventilating fans) and for other purposes (for example, heating controls). The operation and/or control as mentioned above can be transmitted by an electronic signal via several media, for example, powerline (mains), twisted pair, optical fibre, radio frequency, infrared, etc. and are performed: - intentionally by a person via an actuating member, a key, a card, etc., via a sensing surface or a sensing unit, by means of touch, proximity, turn, optical, acoustic, thermal; - by physical means, for example, light, temperature, humidity, time, wind velocity, presence of people; - by any other influence. This document also applies to electronic control devices which include integrated radio receivers and transmitters. This document covers only those requirements for mounting boxes which are necessary for the tests on the electronic control devices. Requirements for general purpose mounting boxes are given in the relevant part, if any, of IEC 60670. This document is not intended to cover devices falling within the scope of IEC 60730 (all parts). Electronic control devices complying with this document are suitable for use at ambient temperature not normally exceeding 25 °C but occasionally reaching 35 °C with a lower limit of the ambient air temperature of −5 °C. NOTE 1 For lower temperatures, see Annex E. Functional safety aspects are not covered by this document. Functional safety requirements are covered by the standards of the controlled devices. In locations where special conditions prevail, such as in ships, vehicles and the like and in hazardous locations, for example where explosions are liable to occur, special construction and/or additional requirements may be required. This document is not intended to cover devices which are designed to be incorporated in appliances or are intended to be delivered together with a specific appliance and which are within the scope of IEC 60730 (all parts) or IEC 61058-1. Examples of designs of electronic switches and HBES/BACS switches and functions are shown in Annex AA. Additional requirements for electronic control devices using DLT-technology in accordance with IEC 62756-1 are given in Annex CC. Electrical interface specification for phase-cut dimmer used in phase-cut dimmed lighting systems are given for information only in Annex EE. NOTE 2 Electronic switches and HBES/BACS switches without a mechanical switch in the main circuit do not provide a "full off-state". Therefore, the circuit on the load side are to be considered to be live.

Schalter für Haushalt und ähnliche ortsfeste elektrische Installationen - Teil 2-1: Besondere Anforderungen - Elektronische Schalter

Interrupteurs pour installations électriques fixes domestiques et analogues - Partie 2-1: Prescriptions particulières - Interrupteurs électroniques

l’IEC 60669-2-1:2021 s’applique aux dispositifs de commande électronique, c’est-à-dire un terme général qui englobe les interrupteurs électroniques, les interrupteurs des systèmes électroniques pour les foyers domestiques et les bâtiments (HBES) / systèmes de gestion technique des bâtiments (SGTB) et les éléments électroniques périphériques. Elle s’applique aux interrupteurs électroniques et aux interrupteurs HBES/SGTB, pour courant alternatif seulement, de tension de coupure assignée ne dépassant pas 250 V et de courant assigné ne dépassant pas 16 A, prévus pour des installations électriques fixes domestiques et analogues, intérieures ou extérieures. Elle s’applique également aux éléments électroniques périphériques dont la tension d’alimentation assignée ne dépasse pas 250 V en courant alternatif et 120 V en courant continu, comme les capteurs et les boutons-poussoirs. Le présent document s’applique également aux télérupteurs électroniques et aux minuteries électroniques. Des exigences particulières sont données dans l’Annexe FF. Cette cinquième édition annule et remplace la quatrième édition parue en 2002, l'Amendement 1:2008 et l'Amendement 2:2015. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) intégration des exigences relatives aux interrupteurs HBES, précédemment incluses dans la norme IEC 60669-2-5; b) modification de 19.106, essais et exigences pour les interrupteurs pour LED; c) indications générales pour couvrir les dispositifs de commande électronique; d) essai de boucle.

Stikala za gospodinjstva in podobne nepremične električne inštalacije - 2-1. del: Posebne zahteve - Elektronska stikala

General Information

Status
Not Published
Public Enquiry End Date
21-Apr-2019
Technical Committee
Current Stage
5020 - Formal vote (FV) (Adopted Project)
Start Date
17-Sep-2020
Due Date
05-Nov-2020
Completion Date
19-Nov-2020

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Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN IEC 60669-2-1:2019
01-april-2019

6WLNDOD]DJRVSRGLQMVWYDLQSRGREQHQHSUHPLþQHHOHNWULþQHLQãWDODFLMHGHO

3RVHEQH]DKWHYH(OHNWURQVNDVWLNDOD

Switches for household and similar fixed electrical installations - Part 2-1: Particular

requirements - Electronic switches

Schalter für Haushalt und ähnliche ortsfeste elektrische Installationen - Teil 2-1:

Besondere Anforderungen - Elektronische Schalter

Interrupteurs pour installations électriques fixes domestiques et analogues - Partie 2-1:

Prescriptions particulières - Interrupteurs électroniques
Ta slovenski standard je istoveten z: prEN IEC 60669-2-1:2019
ICS:
29.120.40 Stikala Switches
oSIST prEN IEC 60669-2-1:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 60669-2-1:2019
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oSIST prEN IEC 60669-2-1:2019
23B/1280/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60669-2-1 ED5
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2019-02-08 2019-05-03
SUPERSEDES DOCUMENTS:
23B/1262/CD,23B/1272A/CC
IEC SC 23B : PLUGS, SOCKET-OUTLETS AND SWITCHES
SECRETARIAT: SECRETARY:
Italy Mr Cristiano Masini
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 34
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of

which they are aware and to provide supporting documentation.
TITLE:

Switches for household and similar fixed electrical installations - Part 2-1: Particular requirements -

Electronic switches
PROPOSED STABILITY DATE: 2023
NOTE FROM TC/SC OFFICERS:
This document includes the following main changes:
- Complete proposal for merging IEC 60669-2-1 ed.4.2 and IEC 60669-2-5 ed.1.0
- All modifications approved by MT 6 as indicated in document 23B/1272A/CC
- Inputs from SC3C

Copyright © 2019 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download

this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee

positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other

purpose without permission in writing from IEC.
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1 CONTENTS

2 1 Scope .............................................................................................................................. 5

3 2 Normative references ...................................................................................................... 6

4 3 Terms and definitions ...................................................................................................... 7

5 4 General requirements .................................................................................................... 10

6 5 General remarks on tests .............................................................................................. 11

7 6 Ratings .......................................................................................................................... 12

8 7 Classification ................................................................................................................. 12

9 8 Marking ......................................................................................................................... 13

10 9 Checking of dimensions ................................................................................................. 17

11 10 Protection against electrical shock ................................................................................. 17

12 11 Provision for earthing .................................................................................................... 18

13 12 Terminals ...................................................................................................................... 19

14 13 Constructional requirements .......................................................................................... 19

15 14 Mechanism .................................................................................................................... 21

16 15 Resistance to ageing, protection provided by enclosures of switches, and resistance

17 to humidity ..................................................................................................................... 21

18 16 Insulation resistance and electric strength ..................................................................... 21

19 17 Temperature rise ........................................................................................................... 23

20 18 Making and breaking capacity........................................................................................ 26

21 19 Normal operation ........................................................................................................... 29

22 20 Mechanical strength ...................................................................................................... 34

23 21 Resistance to heat ......................................................................................................... 35

24 22 Screws, current-carrying parts and connections ............................................................. 35

25 23 Creepage distances, clearances and distances through sealing compound .................... 35

26 24 Resistance of insulating material to abnormal heat, to fire and to tracking ..................... 42

27 25 Resistance to rusting ..................................................................................................... 43

28 26 EMC requirements ......................................................................................................... 43

29 101 Abnormal conditions ...................................................................................................... 51

30 102 Components .................................................................................................................. 56

31 103 Electromagnetic fields (EMF) ......................................................................................... 59

32 Annex A (normative) Additional requirements for electronic control devices having

33 facilities for the outlet and retention of flexible cables .................................................... 63

34 Annex B (informative) Changes planned for the future in order to align IEC 60669-1 with

35 the requirements of IEC 60998, IEC 60999 and IEC 60228 ............................................ 64

36 Annex C (Informative) Circuit development (19.3) ................................................................. 65

37 Annex D (informative) Additional requirements for insulation-piercing terminals .................... 66

38 Annex E (informative) Additional requirements and tests for switches intended to be used

39 at a temperature lower than -5 °C .................................................................................. 67

40 Annex AA (informative) Examples of types of electronic switches or HBES/BACS

41 switches and their functions ........................................................................................... 72

42 Annex BB (informative) Circuit development: subclause 19.109 explained ........................... 73

43 Annex CC (normative) Additional requirements for electronic control devices using DLT-

44 technology according to IEC 62756-1 ............................................................................ 77

45 Annex DD (informative) Test set-ups ................................................................................... 79

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46 Annex EE (normative) Electrical interface specification for phase-cut dimmer in phase-cut

47 dimmed lighting systems ............................................................................................... 86

48 Annex FF (normative) ......................................................................................................... 116

49 Bibliography ........................................................................................................................ 120

51 Table 15 – Test voltage, points of application and minimum values of insulating resistance

52 for the verification of electric strength ................................................................................... 22

53 Table 102 – Permissible temperature rise values .................................................................. 25

54 Table 103 – Application of tests for making and breaking capacity and normal operation

55 for electronic switches and HBES/BACS switches according to 7.102.2 ................................ 28

56 Table 104 – Relationship between rated current and capacitance ......................................... 31

57 Table 105 – Values for I and I t depending on the type of distribution system ............... 33

peak

58 Table 106 – Calculated circuit parameters ............................................................................ 34

59 Table 107 – Test loads for HBES/BACS switches for heating installations ............................ 34

60 Table 23 – Creepage distances, clearances and distances through insulating sealing

61 compound ............................................................................................................................. 36

62 Table 108 – Relation between the rated voltage of the HBES/BACS switch, the rated

63 insulation voltage and the rated impulse voltage ................................................................... 38

64 Table 109 – Minimum clearances without verification test ..................................................... 39

65 Table 110 – Test voltages and corresponding altitudes ......................................................... 40

66 Table 111 – Minimum clearances with verification test .......................................................... 40

67 Table 112 – Minimum creepage distances of basic, supplementary and reinforced

68 insulation without verification test for clearances .................................................................. 41

69 Table 113 – Minimum creepage distances of basic, supplementary and reinforced

70 insulation with verification test for clearances ....................................................................... 42

71 Table 114 – Immunity tests (overview) .................................................................................. 44

72 Table 115 – Voltage dip and short-interruption test values .................................................... 45

73 Table 116 – Surge immunity test voltages ............................................................................. 46

74 Table 117 – Fast transient test values .................................................................................. 46

75 Table 118 – Values for radiated electromagnetic field test of IEC 61000-4-3 ........................ 48

76 Table 119 Measurement methods ......................................................................................... 50

77 Table 120 – Protection methods and test conditions ............................................................. 53

78 Table 121 – Capacitors ......................................................................................................... 57

79 Table A.101 – Maximum current and minimum cross-sectional area...................................... 63

80 Table E.101 – Energy for impact tests .................................................................................. 70

81 Table BB.1 – Lamp ............................................................................................................... 73

82 Table EE.1 – Nominal mains voltage 100 V – Frequency 50 Hz or 60 Hz .............................. 93

83 Table EE.2 – Nominal mains voltage 120 V – Frequency 50 Hz or 60 Hz .............................. 93

84 Table EE.3 – Nominal mains voltage 200 V – Frequency 50 Hz or 60 Hz .............................. 93

85 Table EE.4 – Nominal mains voltage 230 V – Frequency 50 Hz or 60 Hz .............................. 93

86 Table EE.5 – Nominal mains voltage 277 V – Frequency 50 Hz or 60 Hz .............................. 93

87 Table EE.6 – Slew rate for voltage decrease across the phase-cut dimmer ........................... 94

88 Table EE.7 – Nominal mains voltage 100 V – Frequency 50 Hz or 60 Hz .............................. 95

89 Table EE.8 – Nominal mains voltage 120 V – Frequency 50 Hz or 60 Hz .............................. 95

90 Table EE.9 – Nominal mains voltage 200 V – Frequency 50 Hz or 60 Hz .............................. 95

91 Table EE.10 – Nominal mains voltage 230 V – Frequency 50 Hz or 60 Hz ............................ 95

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92 Table EE.11 – Nominal mains voltage 277 V – Frequency 50 Hz or 60 Hz ............................ 95

93 Table EE.12 – Nominal mains voltage from100 to 277 V – Frequency 50 Hz or 60 Hz ........... 98

94 Table EE.13 – Nominal mains moltage 100 V – Frequency 50 Hz or 60 Hz ........................... 99

95 Table EE.14 – Nominal mains voltage 120 V – Frequency 50 Hz or 60 Hz ............................ 99

96 Table EE.15 – Nominal mains voltage 200 V – Frequency 50 Hz or 60 Hz ............................ 99

97 Table EE.16 – Nominal mains voltage 230 V – Frequency 50 Hz or 60 Hz .......................... 100

98 Table EE.17 – Nominal mains voltage 277 V – Frequency 50 Hz or 60 Hz .......................... 100

99 Table EE.18 – Currents and Voltages for controlgear during the electronic off state ........... 101

100 Table EE.19 – Parameters for testing purposes .................................................................. 102

101 Table EE.20 – Parameters for testing purposes .................................................................. 110

102
103
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104 Switches for household and similar fixed electrical installations –
105 Part 2-1: Particular requirements – Electronic control devices
106 1 Scope
107 This Clause of Part 1 is completely replaced by:

108 This Part of IEC 60669 applies to electronic control devices which is used as a general term to

109 cover electronic switches, HBES/BACS switches and electronic extension units.

110 It applies to electronic switches and to HBES/BACS switches, for alternating current (AC) only

111 with a rated switching voltage not exceeding 250 V and a rated current not exceeding 16 A,

112 intended for household and similar fixed electrical installations, either indoors or outdoors.

113 It also applies to electronic extension units with a rated supply voltage not exceeding 250 V AC

114 and 120 V DC, such as sensors and push buttons controlling the electronic switches, or the

115 HBES/BACS switches or similar control devices used in lighting systems in the building

116 environment.
117 NOTE 1 An example of lighting systems is DALI.

118 This Part of IEC 60669 also applies to electronic RCS and electronic TDS. Particular

119 requirements are given in Annex FF.

120 Switches including only passive components such as resistors, capacitors, inductors, PTC and

121 NTC components, varistors, printed wiring boards and connectors are not considered as

122 electronic control devices.

123 This Part of IEC 60669 also applies to electronic switches and HBES/BACS switches for the

124 operation of lighting equipment circuits and the control of the brightness of lighting equipment

125 (dimmers) as well as the control of the speed of motors (for example, those used in ventilating

126 fans) and for other purposes (for example, heating controls).

127 The operation and/or control as mentioned above may be transmitted by an electronic signal via

128 several media, e.g. powerline (mains), twisted pair, optical fibre, radio frequency, infra-red, etc.

129 and are performed:

130 - intentionally by a person via an actuating member, a key, a card, etc., via a sensing surface

131 or a sensing unit, by means of touch, proximity, turn, optical, acoustic, thermal;

132 - by physical means, e.g. light, temperature, humidity, time, wind velocity, presence of people;

133 - by any other influence.

134 This standard covers only those requirements for mounting boxes which are necessary for the

135 tests on the electronic control devices.
136 Requirements for general purpose mounting boxes are given in IEC 60670.

137 This standard is not intended to cover devices falling within the scope of IEC 60730.

138 Electronic control devices complying with this standard are suitable for use at ambient

139 temperature not normally exceeding 25 °C but occasionally reaching 35 °C with a lower limit of

140 the ambient air temperature of –5 °C.
141 NOTE 2 For lower temperatures see ANNEX E.

142 Functional safety aspects are not covered by this standard. Functional safety requirements are

143 covered by the standards of the controlled devices.

144 In locations where special conditions prevail, such as in ships, vehicles and the like and in

145 hazardous locations, for example where explosions are liable to occur, special construction

146 and/or additional requirements may be required.

147 NOTE 3 This standard is not intended to cover devices which are designed to be incorporated in appliances or are

148 intended to be delivered together with a specific appliance and which are within the scope of IEC 60730 or

149 IEC 61058-1.

150 Examples of designs of electronic switches and functions are shown in annex AA.

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151 NOTE 4 Electronic switches and HBES/BACS switches without a mechanical switch in the main circuit do not provide a

152 “full off-state”. Therefore, the circuit on the load side should be considered to be live.

153 2 Normative references
154 This Clause of Part 1 applies except as follows.
155 Addition:

156 IEC 60050 (all parts) International Electrotechnical Vocabulary, available at:

157
158 IEC 60127 (all parts) Miniature fuses
159 IEC 60317 (all parts) Specifications for particular types of winding wires

160 IEC 60317-0-1:2013 Specifications for particular types of winding wires – Part 0: General

161 requirements – Section 1: Enamelled round copper wire1)

162 IEC 60364-4-41 Low-voltage electrical installations– Part 4-41: Protection for safety - Protection

163 against electric shock

164 IEC 60384-14 Fixed capacitors for use in electronic equipment – Part 14: Sectional specification:

165 Fixed capacitors for electromagnetic interference suppression and connection to the supply

166 mains

167 IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems – Part 1:

168 Principles, requirements and tests

169 IEC 60664-3 Insulation coordination for equipment within low-voltage systems – Part 3: Use of

170 coating, potting or moulding for protection against pollution

171 IEC 60669-1:2017 Switches for household and similar fixed-electrical installations – Part 1:

172 General requirements

173 IEC 60669-2-2:2006 Switches for household and similar fixed electrical installations – Part 2-2:

174 Particular requirements - Electromagnetic remote-control switches (RCS)

175 IEC 60669-2-3:2006 Switches for household and similar fixed electrical installations – Part 2-3:

176 Particular requirements - Time-delay switches (TDS)

177 IEC 60670 (All parts) Boxes and enclosures for electrical accessories for household and similar

178 fixed electrical installations – Part 1: General requirements

179 IEC 60715 Dimensions of low-voltage switchgear and controlgear – Standardized mounting on

180 rails for mechanical support of electrical devices in switchgear and controlgear installations

181 IEC 60730 (all parts) Automatic electrical controls for household and similar use

182 IEC 60990 Methods of measurement of touch current and protective conductor current

183 IEC 60999-1 Connecting devices - Electrical copper conductors - Safety requirements for screw-

184 type and screwless-type clamping units - Part 1: General requirements and particular

2 2
185 requirements for clamping units for conductors from 0,2 mm up to 35 mm

186 IEC 61000-2-2 Electromagnetic compatibility (EMC) – Part 2-2: Environment – Compatibility

187 levels for low-frequency conducted disturbances and signaling in public low-voltage power

188 supply systems

189 IEC 61000-3-2:2018 Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic

190 current emissions (equipment input current ≤ 16A per phase) 1)

191 IEC 61000-3-3:2017 Electromagnetic compatibility (EMC) – Part 3-3: Limits - Limitation of

192 voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for

193 equipment with rated current ≤ 16 A per phase and not subject to conditional connection

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194 IEC 61000-4-2 Electromagnetic compatibility (EMC) − Part 4: Testing and measurement

195 techniques − Section 2: Electrostatic discharge immunity test 1)

196 IEC 61000-4-3 Electromagnetic compatibility (EMC) − Part 4-3: Testing and measurement

197 techniques − Radiated, radio-frequency, electromagnetic field immunity test

198 IEC 61000-4-4 Electromagnetic compatibility (EMC) − Part 4: Testing and measurement

199 techniques − Section 4: Electrical fast transient/burst immunity test

200 IEC 61000-4-5 Electromagnetic compatibility (EMC) − Part 4: Testing and measurement

201 techniques − Section 5: Surge immunity test 1)

202 IEC 61000-4-6 Electromagnetic compatibility (EMC) − Part 4: Testing and measurement

203 techniques − Section 6: Immunity to conducted disturbances, induced by radio-frequency fields

204 IEC 61000-4-8 Electromagnetic compatibility (EMC) – Part 4: Testing and measurement

205 techniques – Section 8: Power frequency magnetic field immunity test

206 IEC 61000-4-11 Electromagnetic compatibility (EMC) − Part 4: Testing and measurement

207 techniques − Section 11: Voltage dips, short interruptions and voltage variations immunity tests

208 IEC 61000-4-20:2010 Electromagnetic compatibility (EMC) – Part 4-20: Testing and

209 measurement techniques – Emission and immunity testing in transverse electromagnetic (TEM)

210 waveguides
211 IEC 61058-1:2016 Switches for appliances – Part 1: General requirements

212 IEC 61140:2016 Protection against electric shock – Common aspects for installation and

213 equipment

214 IEC 61558-2-6 Safety of transformers, reactors, power supply units and similar products for

215 supply voltages up to 1 100 V - Part 2-6: Particular requirements and tests for safety isolating

216 transformers and power supply units incorporating safety isolating transformers

217 IEC 61558-2-16 Safety of transformers, reactors, power supply units and similar products for

218 supply voltages up to 1 100 V - Part 2-16: Particular requirements and tests for switch mode

219 power supply units and transformers for switch mode power supply units

220 IEC 62756-1 Digital load side transmission lighting control – Part 1: Basic requirements

221 CISPR 14-1:2016 Electromagnetic compatibility – Requirements for household appliances,

222 electric tools and similar apparatus

223 CISPR 15:2018 Limits and methods of measurement of radio disturbance characteristics of

224 electrical lighting and similar equipment

225 CISPR 32:2015 Information technology equipment – Radio disturbance characteristics – Limits

226 and methods of measurement

227 ISO 306:2013 Plastics – Thermoplastic materials – Determination of Vicat softening temperature

228 (VST)

229 IEC 63044-3:2017 Home and Building Electronic Systems (HBES) and Building Automation and

230 Control Systems (BACS) - Part 3: Electrical safety requirements
231 3 Terms and definitions
232 This Clause of Part 1 applies except as follows.
233 Add the following definitions:
234 3.101
235 electronic switch

236 stand-alone device designed to make or break and/or control directly the current in one or more

237 electric circuits either through mechanical switching element(s) via an electronic control circuit,

238 or through an electronic switching element via a mechanical / electronic control circuit.

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239 NOTE 1 to entry A stand-alone device can still be controlled remotely via RF, IR or a dedicated electronic extension

240 unit.

241 NOTE 2 to entry To make or break and/or to control directly means that an actuator makes or breaks the current

242 and/or controls the current.
243 3.102
244 HBES/BACS

245 combination of HBES/BACS products (including their separate connected/detachable devices)

246 linked together via one or more HBES/BACS networks

247 NOTE 1 to entry Other names used such as "home control network", "home control systems", "home and building

248 electronic systems", "building systems", "building automation system", etc. describe types of HBES/BACS system.

249 [SOURCE: IEC 63044-1: 2017, 3.1.3]
250 3.103
251 HBES/BACS switch

252 network operated electronic device intended to be used in an HBES/BACS, using two-way

253 communication and designed to make or break and/or to control directly the current in one or

254 more electric circuits

255 NOTE 1 to entry The communication can use different media e.g. Twisted Pair (TP), Power Line (PL), Infra-Red (IR)

256 and Radio Frequency (RF).

257 NOTE 2 to entry To make or break and/or to control directly means that an actuator makes or breaks the current

258 and/or controls the current.
259 3.104
260 electronic extension unit

261 a device connected to an electronic switch, a HBES/BACS switch, and lighting products used in

262 lighting systems in the building environment in order to remotely control and/or to monitor the

263 electronic switch, the HBES/BACS switch, and lighting products used in lighting systems in the

264 building environment

265 NOTE 1 to entry The electronic extension unit does not control directly the current in one or more circuits (e.g.

266 sensors, HBES/BACS push buttons, status display)
267 3.105
268 ELV
269 Extra-Low Voltage

270 nominal voltage in the electrical installation of buildings according to the voltage band I specified

271 in IEC 61140:2016

272 NOTE 1 to entry Voltage band I according to IEC 61140 is a voltage below or equal to 50 V a.c. or 120 V d.c.

273 [SOURCE: IEC 63044-3:2017, 3.1.7]
274 3.106
275 FELV
276 Functional Extra-Low Voltage

277 electrical circuit in which the nominal voltage cannot exceed ELV under normal conditions

278 NOTE 1 to entry FELV has simple separation from mains.

279 NOTE 2 to entry A FELV circuit is not safe to touch and may be connected to protective earth.

280 [SOURCE: IEC 63044-3:2017, 3.1.9]
281 3.107
282 SELV circuit
283 Safety Extra-Low-Voltage circuit
284 electrical circuit in which the nominal voltage cannot exceed ELV
285 – under normal conditions,
286 – under single-fault conditions, including earth fault in other circuits

287 NOTE 1 to entry SELV has simple separation from PELV and other SELV systems, and earth and protective separation

288 from all other circuits.

289 NOTE 2 to entry Under normal conditions and single-fault conditions in a dry location inside a building, a SELV circuit

290 with a voltage not higher than 25 V AC or 60 V DC is safe to touch.
291 [SOURCE: IEC 63044-3:2017, 3.1.10]
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292 3.108
293 PELV circuit
294 Protected Extra-Low-Voltage circuit
295 electrical circuit in which the nominal voltage cannot exceed ELV
296 – under normal conditions,
297 – under single-fault conditions, except earth fault in other circuits

298 NOTE 1 to entry PELV has protective separation from all circuits other than PELV, SELV or earth.

299 NOTE 2 to entry PELV circuit is safe to touch within the same equipotential bonding area inside a building under the

300 following conditions: under normal and single-fault conditions in dry locations and with no large contact area with a

301 voltage not higher than 25 V AC or 60 V DC; otherwise not higher than 12 V AC or 30 V DC.

302 [SOURCE: IEC 63044-3:2017, 3.1.11]
303 3.109
304 simple separation
305 separation between circuits or between
...

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