The Molex 0430452406 is a 24-circuit, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-wire power and signal interconnect. It carries 8 A per circuit at a 3.00 mm pitch — enough current for moderate-power distribution in a compact footprint.
What the 8 A rating means for your board
8 A per circuit at a 3.00 mm pitch is a solid middle ground — it carries more current than a typical signal header (usually 1-3 A) without demanding the wider pitch or heavier contact of a dedicated power connector. For a harness carrying, say, a 12 A rail split across two circuits, the header has headroom.
Termination is solder-only for the board side; the mating side uses the standard Micro-Fit 3.0 crimp terminal (sold separately, order code 43030-00xx depending on wire gauge).