... , Power Factor, Frequency (Hz), Kwh, 4 Quadrant Energy, etc. Total 28 electrical parameters;2) 240*160 ... and optional modules4. 10 years back-up of integrated energy data5. Large LCD, high brightness, auto-scrolling6. ... —PFa, PFb, PFc, ∑PF6. Frequency7. Active energy—kWh8. Reactive energy– kvarh Connection3 Phase 3 Wires, 3 Phase 4 WiresRated ... DW9L 3 Phase Digital Active Power Meter / Smart Energy Meter