{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT5HU330ABFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT5HU330ABFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT5HU330ABFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT5HU330ABFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT5H 400 TMA 300-3000 3P FF UL/ABB molded case circuit breaker, order code XT5HU330ABFF000XXX.","salesMarkdown":"The ABB XT5HU330ABFF000XXX is a molded case circuit breaker from the XT5H series, 400 A frame size, with a TMA electronic trip unit adjustable from 300 A to 3000 A. Three-pole, fixed thermal-magnetic plus electronic (TMA) protection, FF terminal configuration, UL-listed. The 400 A frame is the physical housing size; the TMA trip unit's adjustable range (300–3000 A) lets you set the continuous current rating to match the downstream load — typically a transformer, large motor, or feeder circuit. The FF terminal type (front-flange) is designed for panel mounting with busbar connections, common in switchgear and MCC lineups. UL listing means the breaker meets UL 489 requirements for use as a branch-circuit protective device in North American panels; you can rely on it for SCCR coordination without additional derating. ## Deployment context Mounts in a standard switchgear or panelboard — the FF terminals accept busbar or cable lugs up to the frame rating. The TMA trip provides adjustable long-time, short-time, and instantaneous protection, so it suits motor feeders, transformer primaries, or main disconnects where coordination with downstream breakers is needed. No special cooling clearance beyond the manufacturer's standard side-to-side spacing is required.","metaTitle":"ABB XT5HU330ABFF000XXX XT5H 400A Molded Case Circuit Breaker","metaDescription":"ABB XT5HU330ABFF000XXX XT5H 400A molded case circuit breaker with TMA 300-3000A trip unit, 3P, FF, UL. Lifecycle stage: current. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"title":"XT5HU330ABFF000XXX","description":"XT5H 400 TMA 300-3000 3P FF UL|ABB XT5HU330ABFF000XXX","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cc2b561dc6d555b90bedb1b1f1f39ca9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for XT5HU330ABFF000XXX?","answer":"Pricing and availability are confirmed at quote time. Submit an RFQ against this order code; the part is sourced through independent distribution and quoted to order."},{"question":"What does the description XT5H 400 TMA 300-3000 3P FF UL mean?","answer":"XT5H is the series and frame size (400 A). TMA 300-3000 means the electronic trip unit is adjustable from 300 A to 3000 A continuous current. 3P = three-pole. FF = front-flange terminals. UL = UL 489 listing for North America."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT5HU330ABFF000XXX","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/XT5HU330ABFF000XXX 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}}