The Molex 399100104 is the 4-position member of the Eurostyle 39910 series — a 0.400 inch (10.16 mm) pitch barrier terminal block rated 60 A per position at 600 V, terminated by a screw rising cage clamp and mounted through-hole to a PCB in a horizontal orientation.
What the ratings mean
At 60 A per position the 399100104 sits well above most barrier-strip ratings — confirm the wire gauge run matches the 6-18 AWG window and that the terminating conductor is sized for the full current without derating. The 600 V rating covers the vast majority of industrial AC and DC bus distributions; the 300 V peer 0399700104 shares the same 60 A and 4-position footprint but carries a lower voltage ceiling, so the 399100104 is the pick when the circuit runs closer to medium-voltage territory. Operating range is -40°C to 130°C — wide enough for most enclosure and industrial floor deployments. The thermoplastic housing material sets the upper limit; verify thermal derating if the terminal block is ganged in a long run with full-rated current on every position.
Sourcing and compliance
Product status is Active with ROHS3 Compliant marking — the part is in normal production and quoted to order against the BOM quantity. No official successor or cross-reference is listed; confirm position count and voltage ceiling against the existing BOM line before committing.