Isolated switching power supplies with universal 100- to 250-Vac input for use with Snap PAC System hardware have a built-in fuse, on/off power switch and LED indicator. Snap-PS5U provides 5-Vdc for loads to 5 A for rack-mounted Snap PAC I/O processors or controllers. Snap-PS24U provides 24 Vdc at 1.25 A to power a Snap PAC S-Series controller or to provide loop power for isolated current-loop analog modules.