{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"2-1776301-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"2-1776301-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2-1776301-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/2-1776301-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Buchanan 503Si Eurostyle terminal strip, 3 circuits, 0.394\" (10.00mm) pitch, 16A, 400V, chassis/panel mount, enclosed barrier, Gray, with integral fuse feature.","salesMarkdown":"## Eurostyle Terminal Strip, 3 Circuits, 10.00 mm Pitch The TE Connectivity Buchanan 2-1776301-3 is a 3-circuit Eurostyle terminal strip from the 503Si series, built for chassis or panel mounting. It carries a 16 A current rating at 400 V and accepts wire from 12 AWG down to 22 AWG — a power-grade block suited for distribution panels, control cabinets, and industrial equipment where a fused disconnect is needed at the termination point. The 0.394\" (10.00 mm) pitch gives generous spacing between circuits for the 400 V working voltage, keeping creepage and clearance comfortable for a 3-circuit block. The enclosed barrier design — a polyamide (PA66) housing — adds physical isolation between terminals, which matters when the strip lives inside an enclosure where accidental tool contact is a risk. ## Integral Fuse — What Sets This Block Apart The fuse feature (listed under Features) is the distinguishing spec on this terminal strip. Most 3-circuit Eurostyle blocks are simple pass-through barriers; this one integrates a fuse holder into the strip, so each circuit can be individually fused without adding an in-line fuse holder or a separate fuse block on the DIN rail. For a panel builder, that means one part number covers both termination and overcurrent protection on a 3-wire circuit — saves a component and a wiring step. Top termination is screw-clamp, with steel screws finished in zinc with non-hexavalent chromate — standard for industrial terminal blocks where corrosion resistance on the screw matters. The bottom termination is closed (no through-hole), which means the wire enters from the top only and terminates inside the enclosed barrier. Wire range is 12-22 AWG, with 6 wire entries total across the 2 rows (3 circuits × 2 rows). The dual-row layout lets you land two wires per circuit, useful for daisy-chaining or paralleling feeds. ## Temperature and Material Limits Rated for -35°C to 100°C operating temperature — the PA66 insulation handles the upper end without softening, and the lower end is fine for unheated industrial cabinets. The 16 A rating is at the block level; derate above 100°C per the manufacturer's curve, but for most panel applications inside a 40-50°C cabinet, the full 16 A per circuit is usable.","metaTitle":"2-1776301-3 TE Buchanan 503Si Terminal Strip, 3 Circuit, 16A","metaDescription":"TE Connectivity Buchanan 503Si Eurostyle terminal strip, 3 circuits, 0.394\" (10.00mm) pitch, rated 16A at 400V. Gray, enclosed barrier, chassis/panel mount.","metaKeywords":null},"attributes":{"series":"503Si, Buchanan","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Terminal Blocks","Barrier Terminal Blocks"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Gray","Pitch":"0.394\\\" (10.00mm)","Series":"503Si, Buchanan","Package":"Bulk","Features":"Fuse","Wire Gauge":"12-22 AWG","Barrier Type":"Enclosed","Mounting Type":"Chassis, Panel","Number of Rows":"2","Product Status":"Active","Voltage Rating":"400V","Top Termination":"Screws","lifecycle_stage":"unknown","Bottom Termination":"Closed","Number of Circuits":"3","Base Product Number":"1776301","Terminal Block Type":"Eurostyle Terminal Strip","Current Rating (Amps)":"16A","Material - Insulation":"Polyamide (PA66), Nylon 6/6","Operating Temperature":"-35°C ~ 100°C","Terminal Screw Finish":"Zinc, Non-Hexavalent Chromate","Number of Wire Entries":"6","Terminal Screw Material":"Steel","Material Flammability Rating":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.3200","priceTiers":[{"qty":1,"price":"$14.32000","currency":"USD"},{"qty":10,"price":"$12.94800","currency":"USD"},{"qty":25,"price":"$12.60560","currency":"USD"},{"qty":50,"price":"$12.12620","currency":"USD"},{"qty":100,"price":"$11.23560","currency":"USD"},{"qty":250,"price":"$11.16704","currency":"USD"},{"qty":500,"price":"$10.75600","currency":"USD"},{"qty":1000,"price":"$9.59133","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/2-1776301-3/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 2-1776301-3 and how do I get a price?","answer":"The 2-1776301-3 is sourced to order through independent distribution."},{"question":"What wire gauge does 2-1776301-3 accept?","answer":"The terminal strip accepts 12 AWG to 22 AWG wire. The screw-clamp top termination handles solid and stranded copper within that range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2-1776301-3","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/2-1776301-3 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}}