What it is and where it sits in the series
The Molex 398900402 is the 2-circuit member of the Eurostyle 39890 series — a 5.00 mm pitch terminal block with screw-clamp cage termination, angled 35° to the board for panel-level wire entry. The through-hole body accepts 12–30 AWG conductors; the rising cage clamp grips the full wire cross-section without cold flow on re-termination. Rated 17.5 A per circuit at 300 V, with a 105°C maximum operating temperature. The housing is black polyamide (nylon); contacts are copper-tin plated with nickel-plated clamp and screw hardware — a standard industrial plating stack for ambient use in enclosed panels and DIN-rail cabinets.
What the ratings mean for your design
Where this class is used
Eurostyle 5.00 mm pitch terminal blocks are the workhorse of industrial automation and power control — panel-level wire-to-board terminations on PLCs, motor drives, power supplies, and instrumentation. The 35° angle orientation and through-hole mount make these common on DIN-rail feed-through sections and control cabinet entry points where wire routing above the PCB plane simplifies harness dressing.