Based on the load current of S300 machine, in Russia, optimal combinations of radius and mass per unit length of tungsten wirearrays were obtained by a lot of optimal calculation by means of 0D model, under different drive current with peak value of 2.5MA, 4MA, 5MA, 6MA, 8MA, and 20MA, respectively. The calculation shows that the optimal linear mass increases with the rising time of current, and that the maximal kinetic energy of implosion is in direct proportion to square of current peak value.