EN IEC 63445:2025

System referencing conductor switching device

Publication date:   Jan 15, 2026

General information

60.60   Standard published   Nov 7, 2025

CENELEC

CLC/SR 23K Electrical energy efficiency products

European Norm

27.015   Energy efficiency. Energy conservation in general | 29.020   Electrical engineering in general

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Scope

IEC 63445:2025 applies to <a href="#con-3.1">system referencing conductor switching device</a> (SRCSD) for household and similar uses within a Prosumer’s electrical installations (<a href="#con-3.2">PEI</a>).

The SRCSD provides functions as described in <a href="#id-f72f5318-c448-4325-8dba-7f1e27b597fd">IEC 60364-8-82:2022 [2]</a>, 82.8.2.2.4.

<a href="#con-3.2">PEI</a> intended for operating by either being connected to a distribution network or disconnected from the distribution network is an <a href="#con-3.7">islandable PEI</a>.

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.

Life cycle

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PUBLISHED
EN IEC 63445:2025
60.60 Standard published
Nov 7, 2025