The Molex 464379303 is a 3-position plug in the EXTreme Ten60Power 46437 series, built for high-current board-to-board power distribution. It carries male blades on a single row at 0.217" (5.50 mm) pitch, terminated by press-fit into plated through-holes — no solder, no thermal stress on the board.
The 5.50 mm pitch gives enough creepage for the 600 VAC / 250 VDC rating without forcing an oversized board footprint; the wide spacing also helps with thermal dissipation at full load. Gold plating at 30.0 µin (0.76 µm) is thick enough to survive repeated mating cycles in modular power supplies or field-swappable units — tin would fret under vibration at this current, so the gold is a reliability choice, not a luxury.
Where It Goes — Applications and Environment
This plug is a power interconnect for server PSUs, industrial drives, battery distribution units, and telecom rectifiers — anywhere you need to move 60 A per contact through a solderless backplane. The press-fit termination suits high-reliability assemblies where rework must be avoided. The -40°C to 105°C operating range and UL94 V-0 housing mean it can sit in an outdoor telecom cabinet or an industrial enclosure without derating for temperature or worrying about flame spread.