For sale is a Miller Gold Star 500SS Direct current arc welder Serial JB542245 Primary 230/460 V 98/49 A 25.6 KW 38.8 KVA 60 Hz; Three phase Secondary 40 V 500 A 60% (Duty cycle) 70 (Max OCV) Temperature rise 115 C Nema class I (60) Nema Rating EW 1-1971 Also it has safety switch box.