{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT4HU4250BFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT4HU4250BFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT4HU4250BFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT4HU4250BFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB, XT4H series, molded case circuit breaker, XT4HU4250BFF000XXX, 250 TMA trip unit, 1250-2500 A adjustable range, 4-pole F-F, UL/CSA.","salesMarkdown":"The trip unit's adjustable overload and short-circuit pickup range covers 1250 A to 2500 A, making it sized for high-current feeders or large motor branch circuits in industrial distribution. The 250 TMA designation indicates a thermal-magnetic trip unit with an adjustable continuous current rating (Ir) that can be set anywhere between 1250 A and 2500 A. The thermal element protects against sustained overloads; the magnetic element provides instantaneous short-circuit protection. The XT4H frame is designed for panelboard and switchboard mounting, typically with a rotary handle or motor operator for remote switching. The UL/CSA listing confirms acceptance in North American installations per NEC/CEC requirements. ## Deployment context The adjustable trip range lets the same breaker serve different load sizes — a 1600 A feeder today, a 2000 A feeder tomorrow — by simply re-setting the dials, without swapping the breaker.","metaTitle":"ABB XT4HU4250BFF000XXX XT4H MCCB, 250 TMA 1250-2500 A 4P","metaDescription":"ABB XT4HU4250BFF000XXX XT4H molded case circuit breaker, 250 TMA trip unit, 1250-2500 A adjustable range, 4-pole F-F UL/CSA. Lifecycle stage current — available to order. Request R","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"title":"XT4HU4250BFF000XXX","description":"ABBTB XT4HU4250BFF000XXX XT4H|ABBTB XT4HU4250BFF000XXX XT4H 250TMA250 1250-2500 4PFFUL/CSA","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/41da7c609c0571a7b94ad8889aef0a0a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the adjustable trip range on this MCCB?","answer":"The 250 TMA trip unit adjusts from 1250 A to 2500 A, covering a 2:1 range for the continuous current setting."},{"question":"Who supplies XT4HU4250BFF000XXX and how is it quoted for volume purchases?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"What compliance documentation does this brand provide for XT4HU4250BFF000XXX?","answer":"The UL/CSA marking on the description indicates the breaker carries North American safety certifications. RoHS and REACH declarations are standard for ABB's XT4 series; request the specific compliance pack with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT4HU4250BFF000XXX","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/XT4HU4250BFF000XXX 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}}