{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT3NU4225AFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT3NU4225AFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT3NU4225AFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT3NU4225AFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT3N 225 molded case circuit breaker, order code XT3NU4225AFF000XXX, 225 A frame, TMF 225-2250 thermal-magnetic trip unit, 4-pole, fixed thermal, fixed magnetic, UL/CSA certified.","salesMarkdown":"The ABB XT3NU4225AFF000XXX is a molded case circuit breaker from the XT3N 225 series, carrying a 225 A frame and fitted with a TMF 225-2250 thermal-magnetic trip unit. The 4-pole configuration with fixed thermal and fixed magnetic settings makes it a straightforward choice for distribution panels where you need UL/CSA-listed overcurrent protection and don't plan to swap trip units in the field. The TMF trip provides inverse-time thermal protection for overloads and instantaneous magnetic protection for short circuits, covering the range from 225 A up to 2250 A magnetic pickup. The 225 A frame and TMF 225-2250 trip unit mean this breaker is sized for main feeder or large branch protection in a 480 V distribution panel. The fixed thermal setting at 225 A matches continuous load current up to that value; the magnetic pickup adjustable from 225 A to 2250 A lets you coordinate with downstream breakers and avoid nuisance tripping on motor inrush. The 4-pole version handles three-phase plus neutral or two-pole loads on a 3-phase 4-wire system. UL/CSA listing covers North American installations; the breaker mounts in a standard ABB XT3 panelboard or can be installed in an enclosed MCC bucket.","metaTitle":"ABB XT3NU4225AFF000XXX XT3N 225 TMF 225-2250 4P F F UL/CSA","metaDescription":"ABB XT3N 225 molded case circuit breaker, 225 A frame, TMF 225-2250 trip unit, 4P, UL/CSA. Lifecycle stage current, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"title":"XT3NU4225AFF000XXX","description":"ABBTB XT3NU4225AFF000XXX XT3N 225|ABBTB XT3NU4225AFF000XXX XT3N 225 TMF 225-2250 4P F F UL/CSA","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d9c0a408537a7ef90cf4df84aa7d74a1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy XT3NU4225AFF000XXX and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for the exact commercial terms."},{"question":"What compliance documentation does XT3NU4225AFF000XXX carry?","answer":"The listing confirms UL/CSA certification, which covers North American installation standards. For RoHS, REACH, or IEC documentation, the manufacturer provides these on request as part of the standard compliance package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT3NU4225AFF000XXX","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/XT3NU4225AFF000XXX 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}}