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IEC 62054-21 ED2

Electricity metering (a.c.) - Tariff and load control - Part 21: Particular requirements for time switches

General information

20.99     Aug 20, 2025

CD    Apr 30, 2026

IEC

TC 13

International Standard

91.140.50  

Life cycle

PREVIOUSLY

PUBLISHED
IEC 62054-21:2004 ED1

NOW

IN_DEVELOPMENT
IEC 62054-21 ED2
20.99 WD approved for registration as CD
Aug 20, 2025