... II ,600 V CAT2) Power measurement of 3-phase 3-wire, 3-phase 4-wire, single-phase mode 3) V, A, W, VA, VAR ... total power value and five power parameters of each phase in 3-phase measurement mode respectively 6) Autorange and TRMS display 7 ... 80%, frequency for voltage, current: 45 Hz ~ 65 Hz Three Phase Digital Power Clamp Meter