The Molex 0430450425 is a 4-circuit, dual-row header from the Micro-Fit 3.0 43045 series, on a 3.00 mm pitch. It is a board-to-wire interconnect, through-hole mounted with kinked-pin solder tails, designed for power delivery in automotive, industrial, medical, and telecom harness assemblies. The 8 A per circuit rating at 600 V means each contact carries real bus-level current — this is a power-grade header, not a signal interconnect.
The UL94 V-0 LCP housing handles the temperature rise from the 8 A load without issue.