{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT5HU340AGFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT5HU340AGFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT5HU340AGFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT5HU340AGFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT5H series, molded case circuit breaker, 400 A, 3-pole, EKIP DIP LSIG 400 trip unit, FF terminals, UL/CSA, order code XT5HU340AGFF000XXX.","salesMarkdown":"The ABB XT5HU340AGFF000XXX is a 400 A, 3-pole molded case circuit breaker (MCCB) from the XT5H series, fitted with an EKIP DIP LSIG 400 electronic trip unit. The LSIG designation means it provides long-time (L), short-time (S), instantaneous (I), and ground-fault (G) protection — the full suite for a main or feeder breaker in a low-voltage distribution switchboard. The FF suffix indicates fixed front terminals, so this breaker is panelboard- or switchboard-mounted, not plug-in. Rated 400 A continuous, this MCCB is sized for large motor control centers, transformer secondaries, or main incoming feeders in commercial and industrial 480 VAC / 600 VAC systems. The EKIP DIP trip unit allows field-adjustable protection curves via DIP switches, so the breaker can be coordinated with downstream devices without swapping the trip unit. The 400 A frame and LSIG trip unit mean this breaker handles both overload and ground-fault protection in one package — critical for feeder circuits where a ground-fault relay would otherwise be a separate add-on. The EKIP DIP LSIG 400 trip unit is adjustable across L, S, I, and G parameters, so the breaker can be tuned to the specific cable and load without a software tool or handheld programmer. UL and CSA listings (from the description) confirm this variant is accepted for North American panelboard and switchboard installations without additional agency review. The 3-pole configuration suits three-phase systems; the fixed front terminals (FF) match standard bus-bar or cable-lug connections in a distribution section.","metaTitle":"ABB XT5HU340AGFF000XXX XT5H 400A 3P MCCB, current lifecycle","metaDescription":"ABB XT5HU340AGFF000XXX XT5H 400A 3P MCCB with EKIP DIP LSIG 400 trip unit. UL/CSA listed. 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":"XT5HU340AGFF000XXX","description":"XT5H 400 EKIP DIP LSIG 400 3P FF UL/CSA|XT5H 400 EKIP DIP LSIG 400 3P FF UL/CSA","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a640698968e33b48e12a53c914a56d94.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to XT5HU340AGFF000XXX in this component family?","answer":"Within the XT5H family, a pin-compatible alternative would be another 3-pole, 400 A frame breaker with the same fixed front terminals (FF) and a different trip unit rating or type — for example, an XT5H with an EKIP DIP LSI (without ground-fault) or a higher/lower amp rating in the same frame. However, the LSIG trip unit is specific to this order code; swapping to a different trip unit changes the protection profile. No direct drop-in replacement with identical trip functionality exists within the same order code family without changing the trip unit."},{"question":"What is XT5HU340AGFF000XXX's listed description?","answer":"The listed description for XT5HU340AGFF000XXX is: XT5H 400 EKIP DIP LSIG 400 3P FF UL/CSA. This decodes as: XT5H series, 400 A frame, EKIP DIP electronic trip unit with LSIG protection (long-time, short-time, instantaneous, ground-fault), 400 A trip rating, 3-pole, fixed front terminals, UL and CSA listed."},{"question":"Where can I buy XT5HU340AGFF000XXX?","answer":"The XT5HU340AGFF000XXX 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 a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT5HU340AGFF000XXX","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/XT5HU340AGFF000XXX 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}}