{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"387800104","brand":"Molex","brandSlug":"molex","productSlug":"387800104","canonicalUrl":"https://icsourcedirect.com/molex/387800104","factsUrl":"https://icsourcedirect.com/api/mcp/products/387800104","rawCanonicalId":null},"summary":{"shortDescription":"Molex Beau 38780 387800104 barrier strip, 4 circuits, 0.438\" (11.12mm) pitch, 2 rows, dual-wall barrier, chassis/panel mount, screw top termination, closed bottom, 15A, 300V, 14-22 AWG, black UL94 V-0 housing, bulk.","salesMarkdown":"The Molex Beau 38780 387800104 is a 4-circuit barrier strip terminal block from the Beau 38780 series, built for chassis or panel mounting with a closed bottom and screw top termination. It carries a 0.438\" (11.12 mm) pitch between terminals, dual-wall barriers that separate adjacent circuits, and a black UL94 V-0 thermoplastic housing. This is the kind of block you spec into a power distribution point inside an enclosure — a control cabinet, a junction box, a piece of industrial machinery — where you need a field-serviceable screw clamp for 14-22 AWG wire and the physical isolation that a dual-wall barrier gives you between circuits. ## Ratings That Matter for Fit Rated 15 A at 300 V, with the 0.438\" (11.12 mm) pitch giving enough creepage distance to hold that voltage rating across the barrier walls. The 15 A per circuit is the limiting number for a power tap — each screw clamp can carry a motor branch or a heater load at that current, but the total block dissipation is the sum of all four circuits, so keep the enclosure ventilation in mind. The 14-22 AWG wire range covers most panel-building gauges; the steel screws with zinc clear chromate finish give a corrosion-resistant clamp that stays tight under thermal cycling. The 387800104 is the 4-circuit member of the Beau 38780 family. The closest functional sibling is the 387800105, which is the 5-circuit version at the same 0.438\" (11.12 mm) pitch, same 15 A / 300 V rating, same dual-wall barrier, same chassis mount. The only decision-relevant difference is the circuit count — 4 versus 5 — which means the 387800104 is a shorter block by one terminal position. If your panel layout has a 4-position cutout and a 4-circuit BOM line, this is the one. If you need a fifth terminal, step to the 387800105; the footprint, wire range, and termination are otherwise identical.","metaTitle":"Molex Beau 38780 387800104, 4-Circuit Barrier Strip 0.438\" Pitch","metaDescription":"Molex Beau 38780 387800104 barrier strip, 4 circuits, 0.438\" pitch, 15A at 300V, dual-wall, chassis mount, UL94 V-0. Active production, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"Beau 38780","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Color":"Black","Pitch":"0.438\\\" (11.12mm)","title":"387800104","Series":"Beau 38780","Package":"Bulk","Features":"Flange","Wire Gauge":"14-22 AWG","description":"CONN BARRIER STRIP 4CIRC 0.438\\","Barrier Type":"2 Wall (Dual)","Mounting Type":"Chassis, Panel","Number of Rows":"2","Voltage Rating":"300V","Top Termination":"Screws","Bottom Termination":"Closed","Number of Circuits":"4","Base Product Number":"038780","Terminal Block Type":"Barrier Block","Current Rating (Amps)":"15A","Material - Insulation":"Thermoplastic","Terminal Screw Finish":"Zinc, Clear Chromate","Number of Wire Entries":"8","Terminal Screw Material":"Steel","Material Flammability Rating":"UL94 V-0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.86","priceTiers":[{"qty":1,"price":"$3.86000","currency":"USD"},{"qty":10,"price":"$2.94500","currency":"USD"},{"qty":25,"price":"$2.75880","currency":"USD"},{"qty":50,"price":"$2.45220","currency":"USD"},{"qty":100,"price":"$2.39890","currency":"USD"},{"qty":250,"price":"$2.21228","currency":"USD"},{"qty":500,"price":"$1.99904","currency":"USD"},{"qty":1000,"price":"$1.77248","currency":"USD"},{"qty":5000,"price":"$1.66587","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/9d5c9b53e1f040c7b075a9a53280c9a1.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/387800104/alternatives.json"},"ai":{"faq":[{"question":"Will 387800104 drop into a panel cutout for 387800105?","answer":"No — the 387800104 is a 4-circuit block, while the 387800105 is a 5-circuit block at the same 0.438\" (11.12 mm) pitch. The 387800104 is shorter by one terminal position, so a panel cutout sized for the 5-circuit version will have an extra slot. The mounting pattern and screw spacing are otherwise identical."},{"question":"How do I get pricing and availability for 387800104?","answer":"The 387800104 is sourced and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time through independent distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/387800104","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/molex/387800104 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-14T12:54:51.082Z","lastPublished":"2026-07-14T12:54:51.082Z","indexable":true}}