The Molex 395433103 is a 3-position Eurostyle ESE 39543 terminal block, 5.00 mm pitch, rated 10 A per circuit at 300 V with screw-rising cage clamp termination that accepts 16-24 AWG wire. The housing is black polyamide (PA66, nylon 6/6) with a vertical through-hole mating orientation — it mounts perpendicular to the PCB and the wire entry sits on top, so it is a standard top-entry layout for panel or DIN-rail DIN-rail-adjacent PCB termination. Operating range is -40°C to 105°C and the side interlocking feature lets you gang multiple blocks together without a separate carrier strip — a feature that matters in dense panel builds where every millimetre of width counts.
Where this class fits
Eurostyle ESE 39543 blocks are used as wire-to-board power terminations in industrial control panels, DIN-rail-mounted instrumentation, and factory automation harness assemblies — the rising cage clamp grips the conductor without a ferrule and the block ships in the open state, so pre-assembly wiring goes faster than with a set-screw block. The 5.00 mm pitch and 10 A rating sit in the mid-range of the Eurostyle family — smaller than the 10.16 mm pitch 39970 series blocks rated 60 A, but larger than the sub-3.5 mm pitch blocks used for signal-level termination.
395433103 vs 0399700104
The 395433103 handles 10 A per circuit at 300 V — that is the right current range for 16-24 AWG control-circuit wiring. The 0399700104 runs at 60 A on 6 AWG, which is a different application entirely (bus bar or power feeder), so the two parts occupy separate current bands despite sharing the Eurostyle name.