... MTBF≥50000hService Life10 yearsRated Voltage 220V/380V ac Range: 10%~150%, Accuracy: 0.5%Rated incoming circuit current ... Ua, Ub, Uc; 2. Current--Ia, Ib, Ic, In, I unbal, Max. I 3. Active power– Pa, Pb, Pc, ∑P 4 ... kvarh 9. Demand and Max. record for I 10. THD for U, I 11. 4 status, 2 relay Outgoing circuit ... kvarh 9. Demand and Max. record for I 10. THD for U, I 11. 4 status, 2 relay Outgoing circuit ...