What it is — 5-circuit Eurostyle in the 39100 series
The Molex 391002105 is a dual-row Eurostyle terminal strip, 5 circuits at 0.394 inch (10.00 mm) pitch, rated 30 A per circuit at 300 V. The housing is white PA66 (Nylon 6/6) with a UL94 V-0 flammability rating, and the top termination uses zinc-plated steel screws into a closed bottom — suited for chassis or panel wiring where wire entry is top-side and the bottom is contained. It accepts 10-18 AWG conductors.