ABB SK-U1-PS1-H1 Power Supply Board: Dedicated Power Core for Controller Chassis

In a packaging machine’s control cabinet, space is at a premium. The machine’s logic is controlled by a compact ABB PLC with a local I/O rack. Using a large, external 24V DC power supply for the logic cards would consume valuable panel space and add wiring complexity. Instead, the ABB SK-U1-PS1-H1​ power supply board is installed directly within the controller chassis itself. It takes the standard 24V DC control voltage available in the cabinet and efficiently converts it to the clean, stable +5V logic power needed by the microprocessor-based CPU and communication modules. This integrated design simplifies the power distribution, reduces panel footprint, and, most importantly, ensures that the sensitive logic components receive power that is filtered and regulated right at the point of use, shielding them from noise and fluctuations on the main 24V DC bus. The SK-U1-PS1-H1​ solves the pain point of providing clean, localized logic power in a compact, efficient, and reliable form factor.