The Amphenol BERGSTIK® II 78511-203HLF is a 3-position, single-row, unshrouded male pin header on the standard 0.100" (2.54mm) pitch. The 5A per-contact rating and UL94 V-0 black insulation suit it for general-purpose signal and low-power distribution inside an enclosure. The -65°C to 125°C operating range means it handles industrial cabinet thermal swings without issue.
What the 5A rating means for the fit
5A per contact is the maximum rated current at ambient — the real-world limit drops if you pack the header into a high-temp cabinet or run all three circuits at once.