{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT4HU3250AFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT4HU3250AFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT4HU3250AFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT4HU3250AFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB Tmax XT4 series, XT4HU3250AFF000XXX, molded case circuit breaker, 250A, 3-pole, thermal-magnetic fixed trip, 25kAIC @ 600VAC, 65kAIC @ 480VAC.","salesMarkdown":"## 250 A MCCB with high interrupt capacity It carries a thermal-magnetic fixed trip and front flat terminals. The key spec for fit: 65 kAIC at 480 VAC and 25 kAIC at 600 VAC — that interrupt rating governs whether this breaker clears a fault without upstream coordination failure in a 480 V distribution panel. ## Interrupt rating and deployment context The 65 kAIC at 480 VAC means this breaker can interrupt a bolted fault up to 65,000 A at that voltage without self-destructing or cascading to upstream gear. That is a high-capacity rating for a 250 A frame — typically found in main or large-feeder positions in industrial switchboards, not branch-only duty. The 600 VAC rating at 25 kAIC keeps it viable for 600 V class Canadian or legacy industrial plants. Panel builders: the XT4 frame mounts with the standard ABB fixed or plug-in base; the front flat terminals accept busbar or cable lugs directly.","metaTitle":"ABB XT4HU3250AFF000XXX Molded Case Breaker, 250A, 3P","metaDescription":"ABB XT4HU3250AFF000XXX molded case circuit breaker, 250A, 3-pole, 65kAIC @ 480VAC. Current production. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Amps":"250","Poles":"3","title":"XT4HU3250AFF000XXX","description":"Breaker, Molded Case, 250A, 3P, 25kAIC @ 600VAC, 65kAIC @ 480VAC|Tmax, Breaker, Molded Case, Frame Size XT4, 250 Amp, Thermal Magnetic Fixed Trip, 3-Pole Fixed + Front Flat Terminals, 25kAIC @ 600VAC, 65kAIC @ 480VAC","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/95c708b86c74077abd0473f91f95dbe6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy XT4HU3250AFF000XXX and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings of XT4HU3250AFF000XXX?","answer":"250 A continuous, 3-pole, 65 kAIC at 480 VAC, 25 kAIC at 600 VAC. Thermal-magnetic fixed trip with front flat terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT4HU3250AFF000XXX","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/XT4HU3250AFF000XXX 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}}