What it is and where it sits in the series
The Molex 391001806 is the 6-circuit member of the Eurostyle 39100 series — a dual-row enclosed barrier terminal strip sized for chassis and panel wiring in industrial control and power distribution applications. Rated 20 A per circuit at 600 V with an operating range of -40 °C to 105 °C, the strip accepts 12–22 AWG wire via a screw-top entry with 12 individual wire entries and a closed bottom that prevents debris ingress into the termination cavity.
Why the 8 mm pitch matters
The 8 mm pitch on the 391001806 is a deliberate step down from the 10 mm pitch of the 0391002012 — a different panel cutout and a different wire-routing channel. If your panel was laid out around the wider 10 mm spacing, the 391001806 will not drop in without reworking the mounting pattern and potentially the wire harness routing. Where the 8 mm spacing does work in your favour is density: six circuits in a narrower envelope than the 10 mm 12-circuit member means the 391001806 is the right fit for a subsystem or branch rail where circuit count is modest but panel real estate is constrained.
Compliance and sourcing
Sourced to order against BOM quantity; confirm circuit count and pitch against your panel layout before committing. The 6-position count and 8 mm spacing are the two numbers that must match your existing assembly or the new design.