... 1:1984 standard DM 9648--KW TYPE-A,TYPE-B,TYPE-CDM 9648--KW3 TYPE-A,TYPE-B,TYPE-CDISPLAY: 3 1/2 DIGITS ... single phase circuit.* √3x VxlxCOSΦ for three phase circuit.*Input current:connneciton by mean OF---5A transformer.*TYPE A:40 ... 5A,300/5A,400/5A(Multi-swichable range)*TYPE B:150/5A,200/5A,300/5A,400/5A ... display screen will be showen over ma.1999KW.*THREE PHASE KW METER DM9648-KW3With 3000/5A,4000/5A ...