What this is
The Molex 386306404 is the 4-circuit member of the Beau 38630 series, a single-row 2-wall (dual-barrier) chassis-mount terminal block rated 25 A per circuit at 600 V. Top termination is a screw clamp accepting 12–24 AWG solid or stranded wire; the bottom terminates to a through-hole PC pin for direct PCB attachment. A flange on the housing provides panel mounting with a screw-down anchor point — the through-hole legs then pass through the board while the flange holds the assembly to the panel face.
What the ratings mean for your selection
The 25 A per circuit rating is the binding figure for wire and panel circuit design — it tells you each of the four circuits independently carries up to 25 A, which means a 4-circuit block can serve as a four-pole power distribution point without derating below the headroom you'd reserve for a single shared rail. The 600 V rating puts this in the industrial mains and motor-drive voltage class — the barrier wall spacing (the 2-wall dual barrier) is the construction feature that supports that rating without creepage妥协 between adjacent circuits. Pitch is 0.438" (11.12 mm). Board layout must use the published footprint — the PC-pin diameter and flange hole position drive the drill and pad stack-up. The dual termination — screw top and PC-pin bottom — is the defining architecture of this part. It bridges a wire-entry point at the panel face with a board-level connection at the PCB. This makes it a panel-feedthrough rather than a pure wire-only or board-only block: the circuit continues through the connector from panel wiring to PCB land in one part, which eliminates a separate feedthrough bushing on the panel. Contact plating is not specified as a gold-over-nickel grade — the terminal screws carry a zinc clear-chromate finish on steel, which is the appropriate treatment for a screw-clamp termination where mechanical clamping, not spring tension, makes the contact. The PBT housing carries no UL94 flame class in this listing, so for applications requiring a published flammability rating, that field should be confirmed against the product drawing.
Second-source question
The Beau 38630 and the Eurostyle 39100 series are different families with different pitches and current ratings — the 386306404 at 0.438" (11.12 mm) pitch does not share a board footprint with the 0391002502 at 0.591" (15.00 mm) pitch. A panel cutout sized for one series will not accept the other without rework, and the current rating delta (25 A vs 63 A) reflects different contact and barrier construction. There is no drop-in substitute across these families on record — qualifying a second source requires a full re-layout, not just a BOM line swap.
Sourcing and lifecycle
386306404 carries an Active product status and ROHS3 Compliant certification — both on record. Quoted to order against the BOM quantity. No official successor or cross-reference is listed, so confirm circuit count and mounting orientation against the current BOM before committing.