The energy meters may be universally used for the acquisition and billing of
electrical energy in trade, household, industry and building management
applications. Momentary circuit loads can be evaluated at any time using the
additional instantaneous power display. Variants for direct connection (U1281,
U1289) are designed for currents up to 65 A without the installation of
additional current transformers. The variants for transformer connection (U1381,
U1387, U1389) may be connected both to x/1 A and x/5 A current transformers.
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