The Molex Beau 38720 387207216 is a 16-circuit barrier strip terminal block on 0.375" (9.53 mm) pitch. It's a dual-wall barrier design — the 2-wall construction puts a physical wall between adjacent terminals, which cuts down the chance of a stray wire or tool bridging across circuits in a control panel. Accepts 14-22 AWG wire.
This is a through-hole mount barrier strip — the PC pins on the bottom go into the board and get soldered, while the screw terminals on top take the field wiring. The 0.375" pitch gives you enough room between terminals for a standard screwdriver without crowding, and the 16 circuits match up to a 16-position BOM line. The nickel-plated brass terminal screws hold up to repeated tightening cycles in service without galling.