The Molex 0430452229 is a 22-position, dual-row through-hole header from the Micro-Fit 3.0 43045 series, designed for board-to-cable/wire interconnects. It carries 8 A per circuit at a 3.00 mm pitch, with 30.0 µin gold plating on the mating contacts — a plating grade that supports repeated mating cycles in corrosive or field-service environments.
The 600 V rating gives generous creepage headroom for the pitch class, so the limiting factor in a real layout is usually the PCB trace width, not the connector.
The locking ramp engages audibly on full mate — a field-service check that the pair is seated. The dual-row 3.00 mm row spacing mirrors the pitch, so the footprint is a simple 2x11 grid at 3.00 mm centers.