What the 391002103 is
The Molex 391002103 is the 3-circuit member of the Eurostyle 39100 series — a dual-row enclosed-barrier terminal strip designed for chassis and panel wiring in industrial automation and power-distribution applications. The 0.394" (10.00mm) pitch and 30A per-circuit rating at 300V make it a compact option in the 39100 family for low-to-medium power bus connections where wire entry density matters. Wire range is 10-18 AWG; top termination is screws with zinc-plated steel hardware. The enclosed-barrier construction prevents accidental shorting between adjacent circuits when field-wiring under tension — a meaningful advantage over open-barrier styles in production or service environments where the termination face is exposed.