The 387409704: Wire range is 14-22 AWG, terminated via brass screws with nickel finish. The bottom termination is a solder turret — a through-hole turret meant for soldered wires or a PCB trace, not a quick-connect blade. That makes this strip a fit for point-to-point wiring inside a cabinet or as a soldered interface on a terminal board.
Comparison to 387406102
The 2-circuit sibling 387406102 shares the same 0.438" pitch, 15 A rating, 300 V, flange mount, and screw top termination. The difference that matters for a panel drop-in: the 387406102 uses a PC pin bottom termination instead of a solder turret. If your existing panel was wired around the 387406102 with PC pins soldered into a PCB, the 387409704's turret won't fit the same board footprint — you'd need to rework the PCB landing pattern or adapt the wiring. Same series, same per-circuit footprint, but the bottom termination changes the board interface.