What this block is
The Molex 393570008 is the 8-position member of the Eurostyle 39357 series — a side-entry, through-hole terminal block sized for PCB mounting in industrial automation and control-panel wiring. The 0.138-inch (3.50 mm) pitch and 12 A per circuit at 300 V ratings put it in the signal/low-power distribution tier of the Eurostyle family. Mating orientation is horizontal with the board, which determines the wire entry direction relative to the PCB surface.
Termination mechanics
Contact plating is tin on the mating/termination face — adequate for the 12 A rating but lower than the gold or gold-over-nickel grades used on high-cycle or signal-integrity versions of this series. The tin finish suits static panel wiring connections where the block is tightened once and left.
Housing and temperature envelope
The PA/Nylon housing is rated -40°C to 105°C operating — wide enough for most industrial enclosure environments without derating the current below the 12 A headline figure. Single-level construction means all eight circuits share the same common plane; no stacking of multiple levels on the same block.
Sourcing
Active part, sourced to order against BOM quantity. The series, pitch, position count, and plating match the listed Eurostyle 39357 designation — confirm the 8-position count and 3.50 mm pitch against the PCB footprint before committing. The M3 mounting hole and horizontal orientation are fixed; verify panel cutout and keep-out against the datasheet drawing.