... frequency series, power (KW) have 16,36,50,60,80,120 series.3, Small size, light weight, ... very clear, high-frequency devices than traditional energy-saving 60% 20% saving compared with SCR-IF;5, ... heat treatment, brazing and so on. WH-VI-60 work power :Three-phrase,four-wire 380V/50HzWorking ... current :90 A Max output power : 60 KW Oscillation frequency : 20-60 KHz Welding alloy tools: alloy turning, ...