{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0387203204","brand":"Molex","brandSlug":"molex","productSlug":"0387203204","canonicalUrl":"https://icsourcedirect.com/molex/0387203204","factsUrl":"https://icsourcedirect.com/api/mcp/products/0387203204","rawCanonicalId":null},"summary":{"shortDescription":"Molex Beau 38720 series 0387203204, 4-circuit barrier terminal block, 0.375\" (9.53mm) pitch, 15A, 300V, 14-22 AWG, screw termination with solder turret bottom, black thermoplastic housing, flange mount.","salesMarkdown":"## Barrier Block for Panel Wiring — 4 Circuits, Screw Termination The Molex 0387203204 is a 4-circuit barrier terminal block from the Beau 38720 series, designed for chassis or panel-mounted power distribution where a screw-terminated, solder-turret connection is required. The 0.375\" (9.53mm) pitch gives enough spacing between terminals for 14-22 AWG wire with a dual-wall barrier that prevents accidental shorting between adjacent circuits. Rated 15A at 300V, this block handles typical control panel and industrial equipment branch circuits without derating at the -40°C to 100°C operating range. The black thermoplastic insulation carries the UL-recognized flame rating expected for equipment inside an enclosure. ## Wiring and Termination — Screw Clamp with Solder Turret Bottom The bottom termination is a solder turret, insulated from the housing, so the block can be wave-soldered to a PCB or hand-wired into a terminal strip. Four wire entries match the four circuits; each entry accepts one 14-22 AWG conductor. The dual-wall barrier between terminals gives physical isolation between adjacent wires, reducing the chance of a stray strand bridging circuits during termination. ## Mounting and Panel Fit — Flange for Chassis or Panel The block includes a flange for screw-down mounting to a chassis or panel — no DIN rail adapter. Single-row layout keeps the footprint narrow; the 0.375\" (9.53mm) pitch means the four circuits span about 1.5 inches plus the end flanges. Panel-mounting screws go through the flanges, so the block stays fixed during wire termination and vibration. The 1-row, 4-circuit configuration is a common building block for a fused or switched power entry point.","metaTitle":"Molex Beau 38720 0387203204 Barrier Block, 4 Circuit, 15A","metaDescription":"Molex 0387203204 Beau 38720 series barrier terminal block, 4 circuits, 0.375\" pitch, 15A/300V rating, 14-22 AWG, screw termination.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Terminal Blocks"],"specifications":{"Color":"Black","Pitch":"0.375\\\" (9.53mm)","Series":"Beau 38720","Features":"Flange","Packaging":"Bulk","Wire Gauge":"14-22 AWG","Part Status":"Active","Barrier Type":"2 Wall (Dual)","Manufacturer":"Molex","Mounting Type":"Chassis, Panel","Number of Rows":"1","Voltage Rating":"300V","Top Termination":"Screws","lifecycle_stage":"unknown","Bottom Termination":"Solder Turret, Insulated","Number of Circuits":"4","Base Product Number":"038720","Terminal Block Type":"Barrier Block","Current Rating (Amps)":"15A","Material - Insulation":"Thermoplastic","Operating Temperature":"-40°C ~ 100°C","Terminal Screw Finish":"Zinc, Clear Chromate","Number of Wire Entries":"4","Terminal Screw Material":"Steel","Material Flammability Rating":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.1300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/f9ea04397fa4281018acb4065b3ef4e6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What wire gauge does 0387203204 accept?","answer":"The block accepts 14-22 AWG wire. The screw termination clamps the conductor against the current-carrying bar; the dual-wall barrier keeps adjacent wires separated."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0387203204","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/0387203204 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}