{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT1NU3100AFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT1NU3100AFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT1NU3100AFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT1NU3100AFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT1NU3100AFF000XXX, XT1N series, molded case circuit breaker, 125 A, 3-pole, TMF trip unit 100-1000 A, frame mount, UL/CSA.","salesMarkdown":"The ABB XT1NU3100AFF000XXX is a 3-pole molded case circuit breaker from the XT1N series, rated 125 A with a TMF (thermal-magnetic fixed) trip unit adjustable from 100 to 1000 A. Frame-mount construction suits panelboard or switchboard integration where the breaker is bolted directly to a bus or mounting plate — no DIN-rail clip, so plan for a dedicated mounting footprint in the enclosure layout. For a feeder or main in a distribution panel, that figure governs the upstream cable sizing and downstream branch circuit coordination — every load downstream sums to less than this number, or the breaker becomes the weak link. The 3-pole configuration covers three-phase systems (typically 208/240/480 VAC wye or delta), so a single device disconnects all three phases simultaneously on a fault or for lockout-tagout. That adjustability is the difference between a breaker that works on a resistive heater bank and one that works on a conveyor motor start — same frame, different setting.","metaTitle":"ABB XT1NU3100AFF000XXX Molded Case Circuit Breaker, 125 A, 3","metaDescription":"ABB XT1NU3100AFF000XXX molded case circuit breaker, 125 A, 3-pole, TMF trip unit 100-1000 A, frame mount, UL/CSA. Currently in production. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Amps":"125","Poles":"3","title":"XT1NU3100AFF000XXX","Mounting":"Frame","description":"XT1N 125 TMF 100-1000 3P F F UL/CSA|XT1N 125 TMF 100-1000 3P F F UL/CSA","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/97033dcf0958b6c300d0196a6a7a8780.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the amp rating and pole count of this breaker?","answer":"Rated 125 A continuous, 3-pole configuration. The TMF trip unit adjusts from 100 to 1000 A."},{"question":"Where can I buy XT1NU3100AFF000XXX and what is the lead time?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time — no stock count or lead-time figure published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT1NU3100AFF000XXX","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/abb/XT1NU3100AFF000XXX when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}