SIST EN 50428:2006/A1:2007

Switches for household and similar fixed electrical installations - Collateral standard - Switches and related accessories for use in home and building electronic systems (HBES)

Schalter für Haushalt und ähnliche ortsfeste elektrische Installationen - Ergänzungsnorm - Schalter und ähnliches Installationsmaterial zur Verwendung in elektronischer Systemtechnik für Heim und Gebäude (ESHG)

Interrupteurs pour installations électriques fixes domestiques et analogues - Norme collatérale - Interrupteurs et appareils associés pour usage dans les systèmes électroniques des foyers domestiques et bâtiments (HBES)

Stikala za gospodinjstva in podobne nepremične električne inštalacije – Spremljevalni standard – Stikala in pripadajoči pribor za uporabo elektronskih sistemov doma in v stavbah

General Information

• Status: Withdrawn
• Publication Date: 04-Nov-2007
• Withdrawal Date: 03-Feb-2021
• ICS: 29.120.40 - Switches
• ICS: 97.120 - Automatic controls for household use
• Technical Committee: EPR - Electrical accessories
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 03-Feb-2021
• Due Date: 26-Feb-2021
• Completion Date: 04-Feb-2021
• Directive: 2004/108/EU - DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 73/23/EEC - Electrical equipment designed for use within certain voltage limits
• Directive: 89/336/EEC - Electromagnetic compatibility (EMC)
• Ref Project: EN 50428:2005/A1:2007 - Switches for household and similar fixed electrical installations - Collateral standard - Switches and related accessories for use in home and building electronic systems (HBES)

Relations

• Replaced By: SIST EN IEC 60669-2-1:2023 - Switches for household and similar fixed electrical installations - Part 2-1: Particular requirements - Electronic control devices (IEC 60669-2-1:2021)
• Effective Date: 20-Sep-2022
• Replaced By: SIST EN 60669-2-5:2017 - Switches for household and similar fixed electrical installations - Part 2-5: Switches and related accessories for use in home and building electronic systems (HBES) (IEC 60669-2-5:2013 , modified)
• Effective Date: 13-May-2010
• Amends: SIST EN 50428:2006 - Switches for household and similar fixed electrical installations - Collateral standard - Switches and related accessories for use in home and building electronic systems (HBES)
• Effective Date: 01-Jan-2008

Overview

SIST EN 50428:2006/A1:2007 is a collateral European standard developed by CLC (European Committee for Electrotechnical Standardization) focusing on switches and related accessories for use in home and building electronic systems (HBES). It specifically addresses switches used in household and similar fixed electrical installations within electronic systems for homes and buildings.

This amendment A1 updates the original EN 50428:2005 standard by refining technical requirements, test methods, and classifications to improve safety, reliability, and electromagnetic compatibility (EMC) of HBES switches. It aligns with EC Directive 2004/108/EC on electromagnetic compatibility.

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Key Topics

• Scope and Definitions
  The standard excludes functional safety aspects of HBES switches but defines HBES as multi-application systems with decentralized functions linked through common communication processes. HBES switches serve functions like switching, open and closed loop controlling, monitoring, and supervising in homes and building environments.

• Classification
  HBES switches are classified according to their intended installation environment:

  • For use in SELV (Separated Extra-Low Voltage)/PELV (Protected Extra-Low Voltage) environments only
  • For use in SELV/PELV and/or mains environments

• Construction and Materials
  The standard sets constructional requirements: for example, lead ends of HBES switches may be prepared but must not be pre-soldered. It also specifies insulation resistance, dielectric strength, minimum clearances, and creepage distances to ensure electrical safety and prevent electric shocks.

• Insulation and Protection
  Detailed tables specify test voltages, minimum insulation resistance, and creepage distances for basic, double, or reinforced insulation between circuits. Protective separation for SELV/PELV circuits must comply with relevant tests as per EN 61558-2-6.

• Electromagnetic Compatibility (EMC)
  The amendment modifies EMC requirements, specifying radiation immunity tests per EN 61000-4-3 with defined field strengths and frequency ranges. It also requires emission tests compliant with EN 50065-1 for power line signaling and sets conducted radio frequency emission tests for TP media interfaces.

• Testing and Verification
  Compliance with construction, insulation, EMC, and other technical requirements is verified through visual inspections and standardized testing procedures defined within the standard and its annexes, including test setups for conducted emission and surge immunity.

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Applications

• Smart Home Systems
  SIST EN 50428:2006/A1:2007 governs switches integral to smart home controls, enabling reliable and safe integration of lighting, heating, security, and environmental monitoring components.

• Building Automation
  Switches and accessories designed under this standard are suitable for automated building management systems, supporting energy efficiency and operational control.

• Electrical Installations in Residential Buildings
  The standard ensures that switches used in fixed electrical installations conform to strict safety and EMC guidelines, promoting secure household environments.

• Integration with Communication Systems
  HBES switches compliant with EN 50428 support multi-application electronic systems communicating over common media such as power lines or twisted pair cables.

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Related Standards

• EN 50090-2-3
  Definitions and requirements for Home and Building Electronic Systems (HBES) communication and function.

• EN 61558-2-6
  Safety requirements and tests for transformers providing protective separation in electrical circuits.

• EN 50065 Series
  Standards governing power line communication for signaling in low-voltage electrical installations.

• EN 61000-4-3
  Electromagnetic compatibility (EMC) testing and measurement techniques – Radiated radio-frequency electromagnetic field immunity.

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Summary

SIST EN 50428:2006/A1:2007 provides essential technical requirements and test methodologies for switches and related devices used in sophisticated home and building electronic systems (HBES). By conforming to this standard, manufacturers and installers ensure devices meet strict safety, insulation, and electromagnetic compatibility criteria. This facilitates the reliable integration of switches within automated and digitally controlled residential and commercial electrical installations, enhancing system performance and user safety.

Keywords: EN 50428, HBES switches, home electronic systems, building automation, electrical installation standards, CENELEC, EMI immunity, insulation requirements, power line communication, SELV/PELV environment, electrical safety standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2007
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6SUHPOMHYDOQLVWDQGDUG±6WLNDODLQSULSDGDMRþLSULERU]DXSRUDERHOHNWURQVNLK
VLVWHPRYGRPDLQYVWDYEDK
Switches for household and similar fixed electrical installations - Collateral standard -
Switches and related accessories for use in home and building electronic systems
(HBES)
Schalter fr Haushalt und hnliche ortsfeste elektrische Installationen - Ergnzungsnorm -
Schalter und hnliches Installationsmaterial zur Verwendung in elektronischer
Systemtechnik fr Heim und Gebude (ESHG)
Interrupteurs pour installations lectriques fixes domestiques et analogues - Norme
collatrale - Interrupteurs et appareils associs pour usage dans les systmes lectroniques
des foyers domestiques et btiments (HBES)
Ta slovenski standard je istoveten z: EN 50428:2005/A1:2007
ICS:
29.120.40 Stikala Switches
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50428/A1
NORME EUROPÉENNE
October 2007
EUROPÄISCHE NORM
ICS 29.120.40; 97.120
English version
Switches for household and similar fixed electrical installations -
Collateral standard -
Switches and related accessories for use in home
and building electronic systems (HBES)

Interrupteurs pour installations électriques Schalter für Haushalt und ähnliche
fixes domestiques et analogues - ortsfeste elektrische Installationen -
Norme collatérale - Ergänzungsnorm -
Interrupteurs et appareils associés Schalter und ähnliches
pour usage dans les systèmes Installationsmaterial zur Verwendung
électroniques des foyers domestiques in elektronischer Systemtechnik
et bâtiments (HBES) für Heim und Gebäude (ESHG)

This amendment A1 modifies the European Standard EN 50428:2005; it was approved by CENELEC on
2007-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This amendment exists in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50428:2005/A1:2007 E

Foreword
This amendment was prepared by the Technical Committee CENELEC TC 23B, Switches for household
and similar fixed electrical installations.

The text of the draft was submitted to the formal vote and was approved by CENELEC as amendment A1
to EN 50428:2005 on 2007-10-01.

The following dates were fixed:

- latest date by which the amendment has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2008-10-01

- latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2010-10-01

This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directive 2004/108/EC. See Annex ZZ.

- 3 - EN 50428:2005/A1:2007
1 Scope
st th
Replace the 1 sentence of the 7 paragraph by:

Functional safety aspects of HBES switches are not covered by this standard.

th
Replace the 8 paragraph by:
In locations where special conditions prevail, e.g. higher temperature, special constructions may be
required.
3 Definitions
Add the following new definition:

3.200
HBES, Home and Building Electronic Systems
a multi-application system where the functions are decentrally distributed and linked through a common
communication process
(EN 50090-2-3, 3.10)
NOTE HBES is used in homes and buildings plus their surroundings. Functions of the system are e.g.: switching, open loop
controlling, closed loop controlling, monitoring and supervising.

7 Classification
Add the following new classification:

7.1.202 according to the installation environment:

– switches intended to be used in SELV/PELV environment only;
– switches intended to be used in SELV/PELV and/or mains environment.

10 Protection against electric shock

Delete the paragraph before the compliance.

13 Constructional requirements

Add the following new subclause:

13.201 The ends of leads of HBES switches, if any, may be prepared but pre-soldering shall not
be used.
Compliance is checked by inspection.

16 Insulation resistance and electric strength

Replace Table 14 by:
Table 14 – Test voltage, points of application and minimum values
of insulating resistance for the verification of dielectric strength
9 Between main supply circuits and SELV and PELV 7 3 750
circuits
10 Between a SELV or PELV circuit below 25 V a.c. - 500 500
and a SELV or PELV circuit above 25 V a.c.
11 Between a SELV or PELV circuit above 25 V a.c - 500 500
and accessible surfaces (see Clause 10)
12 Between a SELV and PELV circuits - 500 500

23 Creepage distances, clearances and distances through sealing compound

23.201 Specification of insulation

st
Replace the 1 sentence by:
The following parameters apply:

23.203 Dimensioning of clearances of basic, double or reinforced insulation between circuits

st
Delete the 1 paragraph.
nd
Replace the 2 paragra
...