{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1546307-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1546307-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1546307-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/1546307-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Buchanan barrier strip, 4 circuits, 0.375\" (9.53mm) pitch, 2 rows, 20A, 300V, screw with captive plate termination, closed bottom, UL94 V-0, black PBT housing.","salesMarkdown":"## Panel-Mount Barrier Block for Field Wiring The TE Connectivity Buchanan 1546307-4 is a 4-circuit barrier strip terminal block built for chassis or panel mounting. It uses a dual-wall barrier design with 2 rows, giving you 8 wire entries total — two per circuit — for daisy-chaining or commoning a feed through the block. The 0.375\" (9.53mm) pitch keeps the screw terminals spaced wide enough for a standard screwdriver without crowding adjacent wires. Rated 20A at 300V, this block handles motor control, lighting panel, and power distribution wiring inside an industrial enclosure. The bottom is closed, meaning no through-hole PCB connection; all wiring lands on the screw terminals from above. ## Wire Range and Termination Hardware The screw terminals accept 12-22 AWG wire — solid or stranded — with a nickel-plated steel screw. The captive plate under each screw head distributes clamping force across the conductor, reducing cold flow compared to a bare screw point. The nickel finish on the screw resists corrosion in humid panel environments. Each of the 4 circuits gives you two wire entries (8 total), letting you land an incoming and outgoing wire on the same barrier position. That's useful for looping power through a block to downstream loads without a separate jumper. ## Mounting and Enclosure Fit The block includes a flange on each end for screw-mounting to a chassis or panel. The 2-wall (dual) barrier design puts a physical wall between adjacent terminals, reducing the chance of a stray strand bridging circuits during wiring. The closed bottom means no exposed solder tails underneath — the block sits flush against the mounting surface.","metaTitle":"1546307-4 TE Buchanan Barrier Strip, 4 Circuit, 20A","metaDescription":"1546307-4 TE Connectivity Buchanan barrier block, 4 circuits at 0.375\" pitch, rated 20A/300V. Screw termination with captive plate. UL94 V-0.","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":"0.375\\\" (9.53mm)","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 with Captive Plate","lifecycle_stage":"unknown","Bottom Termination":"Closed","Number of Circuits":"4","Base Product Number":"1546307","Terminal Block Type":"Barrier Block","Current Rating (Amps)":"20A","Material - Insulation":"Polybutylene Terephthalate (PBT)","Operating Temperature":"-40°C ~ 120°C","Terminal Screw Finish":"Nickel","Number of Wire Entries":"8","Terminal Screw Material":"Steel","Material Flammability Rating":"UL94 V-0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3900","priceTiers":[{"qty":1,"price":"$2.39000","currency":"USD"},{"qty":10,"price":"$2.12900","currency":"USD"},{"qty":25,"price":"$2.11880","currency":"USD"},{"qty":50,"price":"$2.09700","currency":"USD"},{"qty":100,"price":"$1.92410","currency":"USD"},{"qty":250,"price":"$1.91328","currency":"USD"},{"qty":500,"price":"$1.74034","currency":"USD"},{"qty":1000,"price":"$1.55657","currency":"USD"},{"qty":5000,"price":"$1.37281","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/1546307-4/alternatives.json"},"ai":{"faq":[{"question":"What wire gauge does 1546307-4 accept?","answer":"The screw terminals accept 12-22 AWG solid or stranded wire. The captive plate under the screw head clamps the conductor securely without damaging the strands."},{"question":"What is the pitch on the 1546307-4 barrier block?","answer":"The pitch is 0.375\" (9.53mm) between centers. That spacing gives you room for a standard terminal screwdriver and keeps adjacent wires from shorting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1546307-4","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/1546307-4 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}}