SC 23K - Electrical Energy Efficiency products
Standardisation in the field of Energy Efficiency products, systems and solutions, to be used in existing and new electrical installations, for monitoring, measuring, controlling, managing and optimizing the overall efficient use of a.c. and d.c. electrical energy for household and similar.
Produits pour l’efficacité énergétique électrique
Normalisation dans le domaine des produits, systèmes et solutions pour l’efficacité énergétique, à utiliser dans les installations électriques existantes ou nouvelles, pour le contrôle, la mesure, la gestion et l’optimalisation de l’utilisation efficace globale de l’énergie électrique c.a. ou c.c. pour le domaine domestique et similaire
General Information
Frequently Asked Questions
SC 23K is a Technical Committee within the International Electrotechnical Commission (IEC). It is named "Electrical Energy Efficiency products" and is responsible for: Standardisation in the field of Energy Efficiency products, systems and solutions, to be used in existing and new electrical installations, for monitoring, measuring, controlling, managing and optimizing the overall efficient use of a.c. and d.c. electrical energy for household and similar. This committee has published 4 standards.
SC 23K develops IEC standards in the area of Information technology. The scope of work includes: Standardisation in the field of Energy Efficiency products, systems and solutions, to be used in existing and new electrical installations, for monitoring, measuring, controlling, managing and optimizing the overall efficient use of a.c. and d.c. electrical energy for household and similar. Currently, there are 4 published standards from this technical committee.
The International Electrotechnical Commission (IEC) is the world's leading organization for the preparation and publication of international standards for electrical, electronic, and related technologies. Founded in 1906, the IEC provides a global platform for companies, industries, and governments to meet, discuss, and develop the international standards they require.
A Technical Committee (TC) in IEC is a group of experts responsible for developing international standards in a specific technical area. TCs are composed of national member body delegates and work through consensus to create standards that meet global industry needs. Each TC may have subcommittees (SCs) and working groups (WGs) for specialized topics.
IEC 63445:2025 applies to system referencing conductor switching device (SRCSD) for household and similar uses within a Prosumer’s electrical installations (PEI).
The SRCSD provides functions as described in IEC 60364-8-82:2022 [2], 82.8.2.2.4.
PEI intended for operating by either being connected to a distribution network or disconnected from the distribution network is an islandable PEI.
Intentional disconnection from and connection to the distribution network relies on the local earthing system being switched by the SRCSD. In addition, unintentional loss of distribution network is covered.
The SRCSD is a single pole device intended to connect one live conductor of the power system to an earthing arrangement.
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IEC 63345:2023 specifies a data model to abstract the metering world towards a simple external consumer display. The data model, as described by means of functional blocks contained in this document, lays down the format of metering data accessible by a simple external consumer display. This data interface would be typically part of the meter communication functions and be accessed by a simple external consumer display via the H1 interface of CEN/CLC/ETSI TR 50572 between the display and the meter communication functions.
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IEC 62991:2022 applies to source switching equipment, hereafter referred to as SSE, for household and similar uses, primarily intended to be used for energy efficiency (EE) purposes with local production and/or storage of energy.
SSE is intended to be installed in low voltage prosumer electrical installations (PEI) to deliver the electrical energy:
either to current-using equipment (direct feeding mode or island mode);
or to the grid (reverse feeding mode).
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IEC 62962:2019 The purpose of this document is to provide requirements for equipment to be used in energy efficiency systems. This document covers load-shedding equipment (LSE).
Guidelines relating to safety for LSE as given in IEC Guide 110 have been followed.
This document applies to load-shedding equipment for household and similar uses. The load-shedding function is used in energy management systems to optimize the overall use of electrical energy including production and storage. Load-shedding can be used for example for energy efficiency purposes as per IEC 60364-8-1:2019.
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