What it is
The Molex 387006304 is the 4-circuit member of the Beau 38700 series — a single-row, dual-wall barrier strip rated 15 A per circuit at 300 V, terminated top-side by screw clamping and bottom-side by through-hole PC pins for direct board mounting. Pitch is 0.325" (8.26 mm) and the block accepts 14–22 AWG wire — the range covers the lighter industrial signal gauges down to the heavier branch-circuit sizes typically landed on barrier strips in control panels and distribution equipment. Operating temperature runs −40°C to 130°C; the screw hardware is steel with a clear-chromate zinc finish — adequate for the thermal and atmospheric exposure typical of enclosed panel environments.
Where this class is used
Barrier strips like the 38700 series serve as fixed wire-land points in industrial enclosures — the dual-wall barrier isolates each circuit at the top while the PC pins lock the block into the PCB at the bottom, bridging the harness-to-board interface without a removable mating half.
Not a drop-in for the Eurostyle 39100 series
The listed Eurostyle peers (0391002502 at 0.591" pitch / 600 V / 63 A, and 0391002012 at 0.394" pitch / 600 V / 30 A) are from a different series — different pitch, voltage, and current ratings mean neither is a direct replacement for the 387006304 in a panel layout.
Sourcing
Active and ROHS3 compliant — quoted to order against BOM quantity with no official successor. Confirm the 4-circuit count, the 0.325" pitch footprint, and the PC-pin bottom termination against the panel or board layout before committing to a PO.