EN 62054-21:2004/A1:2017
Current
Current
The latest, up-to-date edition.
Electricity metering (AC) - Tariff and load control - Part 21: Particular requirements for time switches
Amendment of
Published date
05-19-2017
Specifies particular requirements for the type test of newly manufactured indoor time switches with operation reserve that are used to control electrical loads, multi-tariff registers and maximum demand devices of electricity metering equipment
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