{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1776301-7","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1776301-7","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1776301-7","factsUrl":"https://icsourcedirect.com/api/mcp/products/1776301-7","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Buchanan 503Si Eurostyle Terminal Strip, 1776301-7, 2 circuits, 0.394\" (10.00mm) pitch, 16A, 400V, chassis/panel mount, enclosed barrier, screw termination, integrated fuse, gray, PA66 insulation.","salesMarkdown":"The TE Connectivity 1776301-7 is a 2-circuit Eurostyle terminal strip from the Buchanan 503Si series, designed for chassis or panel-mounted power distribution where an integrated fuse saves a separate fuse holder. The 0.394\" (10.00mm) pitch gives generous spacing between terminals — enough for 400 V working voltage and 16 A per circuit without tracking concerns. The enclosed barrier type and screw top termination suit permanent installations in industrial control panels, HVAC equipment, and power distribution blocks where field wiring is landed once and left. ## Sizing the Wire and the Circuit The 12-22 AWG wire range covers both the incoming power feed (12 AWG for 16 A continuous) and smaller control or tap circuits (22 AWG). Four wire entries on a 2-circuit strip means each circuit accepts two conductors — useful for daisy-chaining power to adjacent strips or paralleling a feed and a load on the same terminal. The steel screws with non-hexavalent zinc finish provide corrosion resistance in cabinet environments without plating flake contamination. ## The Integrated Fuse — What It Changes The fuse feature is the distinguishing characteristic of this 503Si member. Instead of a plain barrier strip that requires an inline fuse holder or a separate fuse block, the 1776301-7 incorporates the fuse carrier into the terminal body. This saves panel space and reduces wiring points — one less splice or terminal in the circuit. The fuse itself is not included; the buyer sources the appropriate cartridge fuse for their overcurrent protection requirement.","metaTitle":"TE 1776301-7 503Si Terminal Strip, 2 Circuit, 10mm Pitch","metaDescription":"TE Connectivity 1776301-7 Buchanan 503Si Eurostyle terminal strip, 2 circuits, 0.394\" (10.00mm) pitch, 16A, 400V, integrated fuse. Active, RoHS.","metaKeywords":null},"attributes":{"series":"503Si, Buchanan","packageCase":null,"mountingType":null,"rohsStatus":"RoHS 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":"2","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":"4","Terminal Screw Material":"Steel","Material Flammability Rating":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.5000","priceTiers":[{"qty":1,"price":"$8.50000","currency":"USD"},{"qty":10,"price":"$7.40500","currency":"USD"},{"qty":25,"price":"$7.21040","currency":"USD"},{"qty":50,"price":"$7.01560","currency":"USD"},{"qty":100,"price":"$6.58680","currency":"USD"},{"qty":250,"price":"$6.54780","currency":"USD"},{"qty":500,"price":"$6.15806","currency":"USD"},{"qty":1000,"price":"$5.49549","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/1776301-7/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 1776301-7 with available via RFQ confirmation?","answer":"Submit an RFQ for your target quantity and delivery window."},{"question":"What is the pitch of 1776301-7?","answer":"The pitch is 0.394\" (10.00mm) — the center-to-center spacing between adjacent circuits. This determines the hole pattern for chassis or panel mounting and the spacing for busbar or ring-tongue terminations."},{"question":"Does 1776301-7 include an integrated fuse?","answer":"Yes, the 1776301-7 includes a fuse feature integrated into the terminal strip body. This eliminates the need for a separate fuse holder in the circuit. The fuse element itself is not included and must be sourced separately per the overcurrent protection requirement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1776301-7","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/1776301-7 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}}