Business sectors


Technical Bodies

A wide range of CENELEC Technical Committees, Task Forces and Working Groups deal with different topics and types of products in the field of electrotechnology. Taken together, their standardization activities always ensure the highest possible levels of safety and performance and the most efficient energy use.

A part of standards developed by CENELEC in the electrotechnology field are in support of EU legislation, notably the Low-Voltage Directive (LVD), the Electro-magnetic compatibility Directive (EMCD) and the Radio Equipment Directive (RED). Once these harmonized standards are cited in the Official Journal of the European Union (OJEU), they can be used by manufacturers, economic operators, or conformity assessment bodies to demonstrate that products, services, or processes comply with relevant EU legislation.

The coordination of activities under the above-mentioned pieces of legislation takes place in the following Working Groups:

  • CLC/BTWG 143-1 ‘LVD standardization in the EU regulatory framework’ addresses horizontal issues in relation to standardization supporting the LVD Directive 2014/35/EU and its corresponding standardization request (M/511). The Working Group offers a platform to prepare and/or mirror the LVD working party and LVD ADCO (the Administrative Cooperation Working Group). It also coordinates matters related to the LVD work programme and sectoral agreements. In 2024, the BTWG will continue to provide support to Technical Committees for any issue they may have related to LVD. This includes providing an analysis of the assessments of harmonized standards on the part of HAS consultants leading to their non-citation and offer solutions and providing (individual) guidance and sector specific training. BTWG 143-1 does not undertake any standardization activity, but it collaborates with Technical Bodies that work under mandate M/511.


  • CLC/BTWG 154-1 ‘EMC standardization in the EU regulatory framework’: in coordination with and as a complement to the work within CLC/TC 210 ‘EMC’, CLC/BTWG 154-1 will continue, in 2024, to address horizontal issues in relation to standardization surrounding EMC Directive 2014/30/EU. It also offers a platform to prepare and/or mirror the activities of the EMC Working Party. This Working Group does not undertake any standardization activity, but it works closely with Technical Bodies under the EMC mandate M/552. BTWG 154-1 will continue to focus on improving the Technical Bodies’ understanding of the concerns and requests of the European Commission with regards to standardization, and to seek solutions for obstacles hindering the citation of harmonized standards (such as the use of statistical methods, manufacturer defined performance criteria and measurement uncertainty in standards).


  • CEN-CLC/BTWG 10 ‘RED standardization impact’ mirrors the evolution of the Radio Equipment Directive (RED, 2014/53/ EU) in the various European Commission services. In 2024, it will continue to assess the impact on CEN and CENELEC standardization activities, eventually proposing solutions for identified problems. Its tasks include the interaction with other directives/regulations (mainly EMCD/LVD, but also others); ensuring coordination with the European Commission, especially on the OJEU listings; coordinating with ETSI; and dealing with potential overlaps in work. Also BTWG 10 does not undertake any standardization work. However, it provides guidance on addressing specific aspects of the RED.

In the context of the cybersecurity-related developments in the frame of the RED  and the need to mirror cybersecurity-related developments from a horizontal perspective, BTWG 10 will also follow the legislative and policy activities related to cybersecurity and other aspects that have an impact for the development of standards (including harmonized standards), in particular in relation to the (draft) Cyber Resilience Act and to digital regulations such as the (draft) Artificial Intelligence Act.

81 Technical Bodies responsible

CEN/WS 110 Performance test method for lower limb wearable robots for walking on irregular terrains
CLC/BTTF 132-2 Thermal resistant aluminium alloy wire for overhead line conductor
CLC/BTTF 146-1 Losses of small transformers : methods of measurement, marking and other requirements related to eco-design regulation
CLC/BTTF 160-1 Recurrent Test of Electrical Equipment
CLC/BTTF 170-1 Common modifications to EN IEC 61439-1:2021 and EN IEC 61439-2:2021
CLC/BTTF 60-1 Assembly of electronic equipment
CLC/BTTF 62-3 Operation of electrical installations
CLC/BTWG 128-3 BT efficiency
CLC/BTWG 143-1 LVD standardization in the EU regulatory framework
CLC/BTWG 154-1 EMC standardization in the EU regulatory framework
CLC/SR 10 Fluids for electrotechnical applications
CLC/SR 101 Electrostatics
CLC/SR 104 Environmental conditions, classification and methods of test
CLC/SR 113 Nanotechnology standardization for electrical and electronics products and systems
CLC/SR 119 Printed electronics
CLC/SR 120 Electrical Energy Storage (EES) Systems
CLC/SR 121 Switchgear and controlgear and their assemblies for low voltage
CLC/SR 121B Low-voltage switchgear and controlgear assemblies
CLC/SR 124 Wearable Electronic Devices and Technologies
CLC/SR 127 Low-voltage auxiliary power systems for electric power plants and substations
CLC/SR 15 Solid electrical insulating materials
CLC/SR 23 Electrical accessories
CLC/SR 23B Plugs, socket-outlets and switches
CLC/SR 23G Appliance couplers
CLC/SR 23J Switches for appliances
CLC/SR 23K Electrical energy efficiency products
CLC/SR 25 Quantities and units
CLC/SR 27 Industrial electroheating and electromagnetic processing
CLC/SR 29 Electroacoustics
CLC/SR 32B Low-voltage fuses
CLC/SR 32C Miniature fuses
CLC/SR 33 Power capacitors and their applications
CLC/SR 35 Primary cells and batteries
CLC/SR 3C Graphical symbols for use on equipment
CLC/SR 3D Product properties and classes and their identification
CLC/SR 40 Capacitors and resistors for electronic equipment
CLC/SR 46F RF and microwave passive components
CLC/SR 47 Semiconductor devices
CLC/SR 47A Integrated circuits
CLC/SR 47D Mechanical standardization of semiconductor devices
CLC/SR 47E Discrete semiconductor devices
CLC/SR 48 Electromechanical components and mechanical structures for electronic equipment
CLC/SR 48B Electrical connectors
CLC/SR 48D Mechanical structures for electronic equipment
CLC/SR 49 Piezoelectric and dielectric devices for frequency control and selection
CLC/SR 51 Magnetic components and ferrite materials
CLC/SR 56 Dependability
CLC/SR 70 Degrees of protection provided by enclosures
CLC/SR 87 Ultrasonics
CLC/SR 89 Fire hazard testing
CLC/SR 91 Electronics assembly technology
CLC/SR 94 All-or-nothing electrical relays
CLC/SR 96 Transformers, reactors, power supply units, and combinations thereof
CLC/SR LVDC Low Voltage Direct Current and Low Voltage Direct Current for Electricity Access
CLC/TC 106X Electromagnetic fields in the human environment
CLC/TC 121A Low-voltage switchgear and controlgear
CLC/TC 20 Electric cables
CLC/TC 204 Safety of electrostatic painting and finishing equipment
CLC/TC 205 Home and Building Electronic Systems (HBES)
CLC/TC 210 Electromagnetic Compatibility (EMC)
CLC/TC 213 Cable management systems
CLC/TC 216 Gas detectors
CLC/TC 219 Mains communicating systems
CLC/TC 21X Secondary cells and batteries
CLC/TC 22X Power electronics
CLC/TC 23BX Switches, boxes and enclosures for household and similar purposes, plugs and socket outlet for D.C.
CLC/TC 23E Circuit breakers and similar devices for household and similar applications
CLC/TC 23H Plugs, Socket-outlets and Couplers for industrial and similar applications, and for Electric Vehicles
CLC/TC 34 Lighting
CLC/TC 37A Low voltage surge protective devices
CLC/TC 38 Instrument transformers
CLC/TC 40XA Capacitors and EMI suppression components
CLC/TC 40XB Resistors
CLC/TC 55 Winding wires
CLC/TC 64 Electrical installations and protection against electric shock
CLC/TC 72 Automatic electrical controls
CLC/TC 76 Optical radiation safety and laser equipment
CLC/TC 81X Lightning protection
CLC/TC 85X Measuring equipment for electrical and electromagnetic quantities
CLC/TC 95X Measuring relays and protection equipment
CLC/WS 05 Flow batteries - Requirements and test methods

Every day, millions of Europeans use household appliances: dishwashers, kitchen and washing machines, tumble dryers, warming plates, and many others. In close cooperation with its IEC counterpart, CLC/TC 61 ‘Safety of household and similar electrical appliances’ develops safety requirements for electrical appliances primarily for household purposes, but also for other equipment and appliances in similar fields where there is no IEC or CENELEC Technical Committee in existence.

The work of CLC/TC 61 proceeds at a rapid pace due to the growing world-wide use of international safety standards, the increased interest in certification and the rising number of appliances falling under its scope. To give some numbers, the value of trade in electrical appliances in Europe amounts to billions of euros. The regulatory environment applied to electrical appliances varies from country to country, but manufacturers usually must contend with either a performance-based regulatory environment or a pre-market intervention regulatory environment. In both cases, standards are vital for the appliance industry, as they help it manage the risks associated with electricity.

CLC/TC 61 has an important portfolio of standards cited in the Official Journal of the European Union under the Low-voltage and Machinery directives. Furthermore, the use of electronic circuits (including programmable elements) to provide a safety-related function and the effects of electromagnetic phenomena on them significantly impacts the design of future appliances. In addition, manufacturers are increasingly using telecommunications network to enable remote control and servicing of appliances that incorporate programmed electronic circuits. The development of more powerful and compact batteries has led to their use for powering an ever-increasing range of appliances. All these aspects have a significant impact in the development of appliance safety.

Based on this, in 2024, CLC/TC 61 will continue the development of safety standards as part of the EN IEC 60335 series on the safety of household appliances. The TC will finalise the work on general requirements, particular requirements for kitchen machines, cooking pans, electric griddles, whirlpool baths and microwave appliances.


Semiconductors are crucial in a very broad and growing number of sectors: communication, information technology, health care, transportation, energy, and infrastructure. However, securing tiny, intricate semiconductor chips throughout the whole value chain can be challenging. The increasing complexity involved in the design, development, manufacturing, integration, and post-deployment use of microelectronics presents new security risks and vulnerabilities. Consequently, it is key for CENELEC to ensure that users of electronic devices, but also manufacturers, have access to secure and reliable chips.

CENELEC’s activities on semiconductors has begun with a definition of a standardization roadmap. This activity has been taken up by DKE, the German National Electrotechnical Committee, under the EU-funded project ‘Trusted Chips’, which started with a DKE Stakeholder Workshop Semiconductors. The main aim of this project is to develop a roadmap which provides clear terminology and an overview of the current situation in semiconductor standardization throughout the whole value chain, helps identify gaps and needs in standardization, proposes further steps and activities, and sets the scene for the revision of European standardization deliverables supporting EU legislation and the industry. The preparation of the roadmap will also take into consideration the Cyber Resilience Act (CRA).

To further support the standardization activities in the field of semiconductor devices, the CENELEC technical board established a new Technical Committee, CLC/TC 47X ‘Semiconductor devices and trusted chips’. Its kick-off meeting is scheduled for January 2024. The TC’s work will be based on the outcome of the project ‘Trusted Chips’ and will follow a gap analysis for existing standards anda roadmap for new standards based on the identified gaps. CLC/TC 47X will also follow the activities of IEC/TC 47.

For 2024, some of the initial tasks of CLC/TC 47X will be:

  • Clarification of the relationship and potential liaisons with CENELEC’s 2023 program with a focus on ‘’Electrotechnology’ and related Technical Committees;
  • Review of existing semiconductor standards relevant to Trusted Chips, such as IEC/TC 47 and other industry associations;
  • List, collate, and support, all actions from the Trusted Chips and from Secretary Reports relevant to CLC/TC 47X.


CLC/TC 7X ‘Overhead electrical conductors’ continues to be closely aligned with IEC/TC 7 on several projects, such as EN 62818 ‘Conductors for overhead lines - Fiber reinforced composite core used as supporting member material’, and the upcoming revision of EN 50182 ‘Conductors for overhead lines - Round wire concentric lay stranded conductors’, which includes the merger with EN 50540 ‘Conductors for overhead lines - Aluminium Conductors Steel Supported (ACSS)’.


For its part, CLC/TC 13 ‘Electrical energy measurement and control’ is responsible for standardization on measuring systems for supply equipment to electric vehicles. In 2024, the TC’s Working Group 3 will continue to work on EN 50732, with the aim to establish common metrological requirements for the electrical vehicle charging station regarding their compliance with MID. This standard can enhance European consumer protection during the charging process and the payment process.
The TC will also continue to work on the harmonization of international standards such as the EN IEC 62056-series ‘Electricity metering data exchange’, which includes new communication technologies: Wi-SUN and LPWAN.

The TC will also develop other standards to be cited within the OJEU for MID and/or EMCD (EN IEC 62052-11:2021/A11:2022; EN 50470-3:2022; and EN 50470-4:2023.


In 2024, CLC/TC 21X ‘Secondary cells and batteries’ will mainly focus on developing harmonized standards to support M/579.
In addition, the TC will continue working on the standards needed for scaling up and providing a safe market deployment and integration for various kinds of energy storage and new technologies that allow the smooth integration of renewable energy. Finally, CLC/TC 21X will also explore new standards to make electrification sustainable.


In 2024, CLC/TC 22X ‘Power electronics’ will continue to prepare and adapt international standards in the context of Energy Management, Sustainable Energy, and Ecodesign. On the latter, CLC/TC 22X will start developing a new European standard for anticipating the compliance of power electronics with the upcoming ESPR regulation.


In 2024, CLC/TC 23BX ‘Switches, boxes and enclosures for household and similar purposes, plugs and socket outlet for D.C.’ will continue working on parts of the European EN 60670 series on boxes and enclosures for electrical accessories for household and similar fixed electrical installations, in the frame of the LVD.
Furthermore, the TC expects to continue working on the EN IEC 60669-2 series on switches for household and similar fixed electrical installations.


CLC/TC 34 ‘Lighting’ develops European standards on electrical light sources including lamps, lamp caps and holders, lamp control gear and luminaires. In 2024, CLC/TC 34 will finalise the new edition of prEN IEC 60598-1 ‘Luminaires – Par 1: General requirements and tests’, which will be offered for citation under the Low Voltage Directive.


CLC/TC 64 ‘Electrical installations and protection against electric shock’ is responsible for standardization on the protection against electric shock arising from equipment, installations, and systems without limit of voltage. The TC will continue working on several projects in the frame of the HD 60364 series.
In 2024, CLC/TC 121A ‘Low-voltage switchgear and controlgear’ will continue working on the project prEN IEC 60947-10 ‘Low-voltage switchgear and controlgear – Part 10: Semiconductor Circuit-Breakers’.


CLC/TC76 ‘Optical radiation safety and laser equipment’ develops international standards related to laser and other optical radiation safety. Products incorporating lasers or non-coherent optical sources are potentially hazardous because they can burn a person’s retina, or even the skin. By specifying the limits and the calculation methods, standards help define the requirements for manufacturers and minimize the risk for accidents.
In 2024 the TC will continue working to align existing international standards with EU requirements.


CLC/TC 85X ‘Measuring equipment for electrical and electromagnetic quantities’ works on standards that ensure that the electrical equipment used to power the All-Electric Society is calibrated and installed correctly.
In 2024, the TC will work to harmonize edition 5 of IEC EN 60688 ‘Electrical measuring transducers for converting a.c. electrical quantities to analogue or digital signals’ with the LVD and EMCD.


In 2024, CLC/TC 216 ‘Gas detectors’ will conclude its work on EN 50194-1:2023 ‘Electrical apparatus for the detection of combustible gases in domestic premises - Part 1: Test methods and performance requirements’ and continue the development of prEN 50725 ‘Specification for portable electrical apparatus designed to measure draught and gas pressure of heating appliances and systems’.

Furthermore, the TC intends to propose a new project, EN 50545-2 ‘Electrical apparatus for the detection and measurement of toxic and combustible gases in car parks and tunnels – Part 2: Tunnel applications’.

Standards published by CEN and CENELEC in the sector

  • CEN and CENELEC Portfolio of deliverables: 3430 ENs + 54 other deliverables
  • Work items currently in the Work Programme: 662 ENs + 33 other deliverables

Standardization requests from EC/EFTA

  • M/579 - Performance, safety, and sustainability requirements for batteries