... DW9L series 3 phase multi-function power meter:1) To measure: Voltage, Current, Active Power, Reactive Power, Power Factor, Frequency (Hz), Kwh, ... RC30B2NO NO DW9L-RC38B2NORS485DW9L-DC30B24-20mANO DW9L-DC38B24-20mARS485Multifunction Power Meter Features:1. Suit for LV/ HV voltage system2 ... Current—Ia, Ib, Ic, In3. Active power – Pa, Pb, Pc, ∑P4. Reactive power –Qa, Qb, Qc, ∑Q5. Power factor—PFa, PFb, ...