The Molex 430452011 is a 20-circuit, dual-row shrouded header from the Micro-Fit 3.0 43045 series. It is a board-to-cable/wire interconnect — the male pin header solders to the PCB and mates with a Micro-Fit 3.0 receptacle housing to form a locked harness connection. Rated 8 A per circuit at 600 V, with gold-plated mating contacts (30.0 µin) and a tin-plated solder tail (100.0 µin). Applications include automotive, industrial, medical, and telecom equipment.
The 8 A per circuit rating at 600 V is the headline power spec — each pin can carry bus-level current, not just signal, so this header works for power distribution within a harness. The shrouded 4-wall design and locking ramp prevent mis-mating and keep the connection locked under vibration — a practical choice for field-mateable assemblies in automotive or industrial cabinets.