491-235, MEAN WELL, MEAN WELL DC-DC Converter, 12V dc/ 60A Output, 19 → 72 V dc Input, 1000W, Rack Mount, +60°C Max Temp -20°C Min MEAN WELL DC-DC Converter, 12V dc/ 60A Output, 19 → 72 V dc Input, 1000W, Rack Mount, +60°C Max Temp -20°C Min