What it is and where it sits in the Beau 38700 series
The Beau 387006301 is a single-circuit barrier strip from the 38700 series — a board-edge or panel-mount terminal block built around a dual-wall (2-wall) barrier body with a screw-clamp top entry and a PCB-compatible PC pin on the bottom. Rated 15 A per circuit at 300 V, it accepts 14-22 AWG conductors — that span covers the lighter harness connections down to mid-gauge power taps. The operating range of -40°C to 130°C puts it in thermal territory beyond a standard consumer-grade block. The top termination uses steel screws with zinc clear chromate plating — the plating fights corrosion at the screw interface but the hardware is steel, not stainless, so in a high-humidity panel environment a nickel-plated screw upgrade is worth specifying separately. The black thermoplastic housing carries no flame rating on this listing, but barrier blocks in this class typically meet UL94 V-0 — confirm against the product drawing if the end equipment is UL-listed.