{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT5SU340ATFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT5SU340ATFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT5SU340ATFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT5SU340ATFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT5S 400 A breaking part, 3-pole, F F UL/CSA+TU, order code XT5SU340ATFF000XXX.","salesMarkdown":"The ABB XT5SU340ATFF000XXX is a 400 A breaking part for the XT5S molded-case switch platform, configured as a 3-pole unit with F F (fixed-front) terminals and UL/CSA+TU certification. This is the replaceable contact-and-arc-chamber assembly that fits into the XT5S 400 frame — the part that actually interrupts current when the switch operates. It is the component a panel builder or maintenance team swaps when the main contacts are worn or after a fault interruption, rather than replacing the entire switch. Rated for 400 A continuous current in the XT5S frame, this breaking part is sized for the full ampacity of that switch platform. The 3P designation confirms three poles, so it fits three-phase applications. The F F terminal code indicates fixed-front connections — the switch's line and load terminals are at the front face, which is the standard arrangement for panel-mount XT5S switches. UL/CSA+TU certification means the assembly carries both North American (UL/CSA) and Turkish Standards Institution (TÜ) approvals, covering installations in those regulatory jurisdictions.","metaTitle":"ABB XT5SU340ATFF000XXX XT5S 400 A Breaking Part, 3P F F UL/C","metaDescription":"ABB XT5SU340ATFF000XXX is a current-lifecycle XT5S 400 A breaking part, 3P F F UL/CSA+TU. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"title":"XT5SU340ATFF000XXX","description":"XT5S 400 BREAKING PART 3P F F UL/CSA+TU|XT5S 400 BREAKING PART 3P F F UL/CSA+TU","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/50dcf8708252c6fc15f9a71bbbbf7f21.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy XT5SU340ATFF000XXX?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is XT5SU340ATFF000XXX's listed description?","answer":"The description is XT5S 400 BREAKING PART 3P F F UL/CSA+TU, indicating a 400 A breaking part, 3-pole, with fixed-front terminals and UL/CSA plus Turkish Standards certification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT5SU340ATFF000XXX","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/XT5SU340ATFF000XXX 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}}