The CYDLF4 is a double-level fuse terminal block with a fuse function on the top level and a feedthrough function on the bottom level, combining two functions into a single compact unit and reducing the need for separate terminal blocks, saving up to 50% of DIN-rail space. Both levels feature jumpering provisions for flexible power distribution and simplified wiring. The CYDLF4FT is the corresponding feedthrough variant, sharing the same profile for a consistent panel layout. These terminal blocks provide an efficient solution for streamlining wiring in DCS and process automation systems, improving both efficiency and modularity in control panel design.