What it is and where it fits
The Molex 391002006 is the 6-circuit member of the Eurostyle 39100 series — a dual-row enclosed-barrier terminal strip rated 30A per circuit at 600V with a 0.394 in (10.00 mm) pitch. White PA6/Nylon 6 housing, UL94 V-0 flammability, operating range -40°C to 105°C. Top termination is screw-actuated; the bottom is closed. Zinc-plated steel screws accept 10-18 AWG wire across 12 wire entries (two per circuit).
Sibling check before you commit
The 0391002012 carries the same pitch (0.394 in), same current rating (30A), same voltage (600V), same color (white), and the same enclosed-barrier / top-screw construction — but it is the 12-circuit variant with 24 wire entries. If your panel layout was drafted for 12 positions, the 391002006 is a circuit-count downgrade: you cannot drop it in without rewiring to half the circuits. It is not a pin-compatible substitute for the 12-way sibling — it is the 6-way member of the same family.