BY3 type SPD is suiting to A.C 50/60 Hz , 220V electric power system ... of Application BY2 type SPD is suiting to A.C 50/60 Hz , 380V and the following electric ... power systems, such as TT , IT ,TN-S , TN-C and TN-C-S . The product functions as equi-potential connection ... current30 kA30 kA60 kA60 kAElectric charge Q15As15As30As30AsIn(8/20μs) kA100 kA100 kA200 kA200 kARated disconnection follow current ...