What it is and where it sits in the series
The Molex 0430450211 is the 2-circuit member of the Micro-Fit 3.0 43045 family — a dual-row male pin header rated 8 A per circuit at up to 600 V, terminated as a surface-mount right-angle part. The 3.00 mm row spacing puts it squarely in the mid-density power-connectors class, between low-current signal headers and dedicated high-amp bus bars. Micro-Fit 3.0 is the harness-builder's go-to for board-to-cable power nodes in industrial automation and automotive control modules — the locking ramp on this header keeps the mated pair seated under vibration without requiring a secondary TPA click.