{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"2-1546306-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"2-1546306-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2-1546306-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/2-1546306-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Buchanan series, barrier block, 21 circuits, 0.374\" (9.50mm) pitch, 20A, 300V, dual-row, chassis/panel mount, screw termination, black thermoplastic, UL94 V-0.","salesMarkdown":"## 21-Circuit Barrier Block for Panel Wiring The TE Connectivity Buchanan 2-1546306-1 is a 21-circuit barrier strip with a 0.374\" (9.50mm) pitch, built for terminating individual wires at a panel or chassis. It uses two rows of screw terminals — 42 wire entries total — to land 12-22 AWG conductors, with the screws captured in a steel threadform finished in nickel. This is a closed-bottom block, so the screw terminates the wire directly against the internal bus bar; there is no through-hole PCB tail. The -40°C to 120°C operating range covers the thermal extremes inside a sealed cabinet or near a motor drive. ## What the 20A / 300V Rating Means for Your Circuit The 20A per-circuit rating is the maximum continuous current the bus bar and screw contact can carry at the rated temperature rise. The 300V rating is the working voltage between adjacent circuits and from any circuit to ground; the 0.374\" pitch and dual-wall barrier provide the creepage distance to sustain that without tracking. This block mounts to a chassis or panel through the integral flange on each end — no DIN rail adapter, so plan for screw-down installation. The top termination is a standard slotted-head screw; the bottom is closed, meaning the wire inserts from the top and the screw clamps it against the internal bus. With 42 wire entries across two rows, this is a dense termination point for a 21-circuit run — each circuit gets two positions, one per row, which is typical for daisy-chaining or feeding separate load and return paths through the same block.","metaTitle":"2-1546306-1 Buchanan Barrier Block, 21 Circuit, 0.374\" Pitch","metaDescription":"TE Connectivity Buchanan 2-1546306-1 barrier strip, 21 circuits, 0.374\" (9.50mm) pitch, 20A/300V, UL94 V-0. Active production, RoHS.","metaKeywords":null},"attributes":{"series":"Buchanan","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Terminal Blocks","Barrier Terminal Blocks"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Black","Pitch":"0.374\\\" (9.50mm)","Series":"Buchanan","Package":"Bulk","Features":"Flange","Wire Gauge":"12-22 AWG","Barrier Type":"2 Wall (Dual)","Mounting Type":"Chassis, Panel","Number of Rows":"2","Product Status":"Active","Voltage Rating":"300V","Top Termination":"Screws","lifecycle_stage":"unknown","Bottom Termination":"Closed","Number of Circuits":"21","Base Product Number":"1546306","Terminal Block Type":"Barrier Block","Current Rating (Amps)":"20A","Material - Insulation":"Thermoplastic","Operating Temperature":"-40°C ~ 120°C","Terminal Screw Finish":"Nickel","Number of Wire Entries":"42","Terminal Screw Material":"Steel","Material Flammability Rating":"UL94 V-0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.5600","priceTiers":[{"qty":1,"price":"$6.56000","currency":"USD"},{"qty":50,"price":"$5.47780","currency":"USD"},{"qty":100,"price":"$5.14680","currency":"USD"},{"qty":1000,"price":"$4.27392","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/2-1546306-1/alternatives.json"},"ai":{"faq":[{"question":"What wire gauge does 2-1546306-1 accept?","answer":"The barrier block accepts 12-22 AWG wire. The screw termination clamps the conductor directly; no ferrule is required, but a ferrule can be used with stranded wire if the installation spec calls for it."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2-1546306-1","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/te-connectivity-amp-connectors/2-1546306-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}