What this is
The Molex 391002009 is a 9-circuit Eurostyle terminal strip — a dual-row enclosed barrier block rated 30 A per circuit at 600 V, panel-mount via the chassis footprint and wired from the top via screw clamps that accept 10-18 AWG. The housing is white polyamide (PA66, Nylon 6/6) with a UL94 V-0 flammability rating, operating from -40 °C to 105 °C — suited for industrial power-distribution and control-panel wiring where the enclosed barrier keeps live terminals isolated inside the housing walls.
9 circuits vs the 12-circuit sibling
The 0391002012 shares the same 0.394" pitch, 30 A rating, enclosed barrier construction, and white color — but carries 12 circuits with 24 wire entries instead of 9 circuits and 18 wire entries. The two are electrically and mechanically compatible where circuit count permits, but the 391002009's shorter body means a smaller panel cutout; the 0391002012 cannot drop into a panel specified around the 9-circuit member without a wiring re-layout.
Sourcing
Active and ROHS3 compliant — quoted to order against the BOM quantity with no official successor. The 9-circuit count, 0.394" pitch, and 30 A rating are the three specs to confirm before committing to a panel layout or wire harness.