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IEC 63552 ED1

Switching device for islanding (SDFI)

General information

50.20     Jan 16, 2026

PRVD    Feb 27, 2026

IEC

TC 23/SC 23K

International Standard

27.015     29.020  

Scope

IEC 63552:2026 applies to switching device for islanding, hereafter referred to as SDFI, for household and similar uses, primarily intended to be used for energy efficiency (EE) purposes with local production or local storage of energy, or with both.
SDFI are intended to be installed in low voltage prosumer electrical installations (PEI) able to operate in island mode as defined in IEC 60364-8-82, so called islandable PEI.
SDFI are used to disconnect the PEI from the grid to allow operating the PEI in island mode and further reconnect the PEI to the grid.

Life cycle

NOW

PROJECT
IEC 63552 ED1
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Jan 16, 2026

National adoptions

dnaSRPS EN IEC 63552:2025  
ISS

Switching device for islanding (SDFI)

50.20   Proof sent to secretariat or FDIS ballot initiated: 8 weeks

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