What measurement accuracy class does the Norax 3 meet for active energy?
The Norax 3 meets Class B measurement accuracy for active energy according to EN 50470-3. For reactive energy, it meets Class 2 accuracy according to EN 62053-23. (Page 2)
From the official Apator HM8930 7197 Norax 3 Electricity Meter manual, page 2
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