What it is and where it sits in the series
The Molex 1720430301 is the 3-circuit member of the Super Sabre 172043 series — a single-row blade-style power header rated 30 A per circuit at up to 600 V, right-angle through-hole mount.
What the ratings mean for your fit
30 A per circuit at 600 V puts this squarely in medium-power distribution — the kind of header that carries bus or drive current inside an enclosure rather than edge connections. The 100.0 µin (2.54 µm) silver contact plating is the substance behind that current rating; thick plating means the current-carrying surface holds up to repeated mating without the resistance climb you see with thin tin. The locking ramp keeps the header seated under the vibration you get in process-plant cabinets and motor-drive cubicles — it is not a casual friction fit. The finger-proof shroud around the live contacts is the design detail that matters when that circuit is energised and someone is working adjacent. Operating range is -40°C to 125°C, which covers the cold-start and the heat-soak extremes you'd see in an industrial enclosure. The LCP glass-filled housing holds its geometry across that span.
Sourcing and compliance
Listed Active with ROHS3 Compliant status — no NRND flag, no LTB notice. Quoted to order against your BOM quantity. Confirm the 3-position count matches the circuit count on your board before committing — the right-angle through-hole foot print is fixed once it goes on the layout.