Siemens PLC Power Supply PS791 Series SCALANCE, 90 → 265 V ac, 24V dc, 420 mA 10W 125 x 60 x 130 mm. Length: 125mm. Width: 60mm. Depth: 130mm. Minimum Operating Temperature: -20°C. Maximum Operating Temperature: +60°C. MPN: 6GK5791-1PS00-0AA6