S8VK-G compact, single-phase, switching power supplies fit in small control panels, and provide stable operation from -40 °C to +70 °C. Optional S8VK-R redundancy units provide smooth switching between two S8VK power supplies. They're available for 15-W, 30-W, 60-W, 120-W, 240-W and 480-W DC output from 100- to 240-Vac input.