{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1546477-2","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1546477-2","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1546477-2","factsUrl":"https://icsourcedirect.com/api/mcp/products/1546477-2","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Buchanan barrier strip, 2 circuits, 0.433\" (11.00mm) pitch, 25A, 300V, 14-22 AWG, screws with captive plate, flange mount, black thermoplastic UL94 V-0 housing.","salesMarkdown":"## What this 2-circuit barrier block is built for The TE Connectivity Buchanan 1546477-2 is a 2-circuit, dual-row barrier terminal strip with a 0.433\" (11.00mm) pitch, designed for panel or chassis mounting where you need to land a power feed and its return on one compact block. The 25A per-circuit rating and 300V voltage rating put this squarely in branch-circuit territory — think 120/240VAC distribution inside an industrial control cabinet, or a DC bus feed to a motor drive. The dual-wall barrier between terminals (2 Wall (Dual) construction) keeps wire strands from bridging circuits when the stripped length is a little generous, which is the kind of thing that saves a troubleshooting call on a Friday afternoon. The flange on each end takes a screw for panel mounting — this block is not a PCB-mount part, it's meant to be screwed to a chassis or sub-panel with the wires landed on the screw terminals. ## Wire range and termination — what fits and how it clamps The 1546477-2 accepts 14 AWG to 22 AWG wire. That 14 AWG bottom end is what lets it carry the full 25A without the wire itself becoming the bottleneck — 14 AWG copper is rated for about 15-20A in chassis wiring, so the terminal block rating is actually above what the wire can safely carry in free air; in practice the wire gauge and the overcurrent protection device set the limit. The bottom termination is closed, meaning the screw does not pass through to the other side; this is a single-sided termination block, not a feed-through. The terminal screw is steel with a nickel finish, which gives good corrosion resistance in a cabinet environment without the galvanic risk of bare steel against copper wire. The 2-circuit block has 4 wire entries — two per circuit, one on each side of the barrier — so you can daisy-chain a feed wire and a load wire on the same terminal. The 0.433\" (11.00mm) pitch is wide enough that you can get a standard 3/16\" or 5 mm slotted screwdriver on the screw without shorting to the adjacent terminal. ## Where this fits in the Buchanan series The 1546477-2 is the 2-circuit member of the TE Buchanan barrier strip family, base number 1546477. The series spans from 1 to 24 circuits at the same 0.433\" (11.00mm) pitch, all sharing the same 25A/300V rating, the same dual-wall barrier, and the same captive-plate screw termination. The 2-circuit version is the smallest in the line — it's the one you spec when you only need to break a single pair of power conductors at a panel interface, rather than running a multi-circuit strip with unused positions. The flange is standard across the series, so the mounting hole pattern is the same whether you use the 2-circuit or the 12-circuit version; the panel cut-out just gets longer.","metaTitle":"1546477-2 TE Connectivity Buchanan Barrier Strip, 2 Circuit","metaDescription":"1546477-2 TE Connectivity Buchanan barrier strip, 2 circuits, 0.433\" pitch, 25A, 300V, 14-22 AWG, UL94 V-0. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":"Buchanan","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Terminal Blocks","Barrier Terminal Blocks"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Black","Pitch":"0.433\\\" (11.00mm)","Series":"Buchanan","Package":"Bulk","Features":"Flange","Wire Gauge":"14-22 AWG","Barrier Type":"2 Wall (Dual)","Mounting Type":"Chassis, Panel","Number of Rows":"2","Product Status":"Active","Voltage Rating":"300V","Top Termination":"Screws with Captive Plate","lifecycle_stage":"unknown","Bottom Termination":"Closed","Number of Circuits":"2","Base Product Number":"1546477","Terminal Block Type":"Barrier Block","Current Rating (Amps)":"25A","Material - Insulation":"Thermoplastic","Operating Temperature":"-40°C ~ 120°C","Terminal Screw Finish":"Nickel","Number of Wire Entries":"4","Terminal Screw Material":"Steel","Material Flammability Rating":"UL94 V-0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8000","priceTiers":[{"qty":1,"price":"$1.80000","currency":"USD"},{"qty":10,"price":"$1.65000","currency":"USD"},{"qty":25,"price":"$1.60120","currency":"USD"},{"qty":50,"price":"$1.58480","currency":"USD"},{"qty":100,"price":"$1.47110","currency":"USD"},{"qty":250,"price":"$1.44668","currency":"USD"},{"qty":500,"price":"$1.31666","currency":"USD"},{"qty":1000,"price":"$1.17848","currency":"USD"},{"qty":5000,"price":"$1.05657","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/870e0e343f27dcc734679dbe9e481bb3.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/1546477-2/alternatives.json"},"ai":{"faq":[{"question":"What wire gauge does the 1546477-2 accept?","answer":"The 1546477-2 accepts 14 AWG to 22 AWG copper wire. The 14 AWG lower end supports the full 25A rating, though the wire's own ampacity in free air is typically lower than the block's rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1546477-2","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/1546477-2 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}}