The Molex 399700103 is a 3-position, single-level PCB terminal block from the Eurostyle 39970 series. It uses a screw rising cage clamp to terminate 6 AWG wire — the cage pulls the conductor against a tin-plated copper contact bar, not the screw itself, so the wire is clamped evenly without strand damage. Rated 60 A per circuit, this block is sized for a main DC power rail or AC distribution point on a PCB, not a signal line.
Through-hole mounting with the wire entry parallel to the board — the screw terminals face the board edge, so the block sits at the PCB perimeter and the cables exit horizontally.