... single phase active energy measuring. Wall-mounted installation type, smart designDisplay type: mechanical counter, unit is kWh, record ... active Display data after power off (mechanical counter)Long type terminal cover designTECHNICAL SPEC.Reference voltage (Un):110V, 120V, ... 10(60)AReference frequency:50Hz, 60HzStarting current: 0.004IbConnection type choice: single phase two wires, L, L, N ...