1.Model: SF-96-3 SF-72-3 2.Class of accuracy: 1.5 3.Frequency range: 50HZ Name: 96 Moving Iron Instruments AC Ammeter Type: SF-96 AC A Accuracy class :1. 5 (over 60A class 2. 5)Specification: 3 phase 4 wires Measuring range:60/100V,80/150V,100/200V,150/250V,250/400V,300/500VPosition:L1-L2,L1-L3,L2-L3,L1-N,L2-N,L3-N. Moving Iron Instruments AC meter with change-over switch