{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT4NU3175AFJ000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT4NU3175AFJ000XXX","canonicalUrl":"https://aoctrl.com/abb/XT4NU3175AFJ000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT4NU3175AFJ000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT4N series, molded case circuit breaker, 250 A frame, TMF 175-1750 A thermal-magnetic trip, 3-pole, line/load lug, UL/CSA, order code XT4NU3175AFJ000XXX.","salesMarkdown":"The ABB XT4NU3175AFJ000XXX is a 3-pole molded case circuit breaker from the XT4N series, built on a 250 A frame and fitted with a TMF 175-1750 A thermal-magnetic trip unit. The TMF designation means it combines a thermal element for overload protection with a magnetic element for short-circuit response, adjustable across the 175–1750 A range. That wide adjustment band lets you set the instantaneous pickup to coordinate with downstream branch breakers or motor starters without swapping the trip unit. The 250 A frame and TMF 175-1750 A trip cover a broad motor and feeder range. The thermal element tracks RMS heating, so it handles sustained overloads on pump or conveyor loads without nuisance tripping. The magnetic pickup, adjustable from 175 A to 1750 A, lets you set short-circuit protection above the motor inrush — typically 8–12× FLA for a standard squirrel-cage start — while still clearing a bolted fault fast enough to keep downstream contactors from welding. The UL/CSA listing means it is accepted for service-entrance and branch-circuit protection in the US and Canada without additional agency review. Line and load lugs are standard; the F F suffix indicates front-connection terminals both sides, which keeps wiring accessible in a tight enclosure.","metaTitle":"ABB XT4NU3175AFJ000XXX XT4N 250 A Molded Case Circuit Breake","metaDescription":"ABB XT4NU3175AFJ000XXX XT4N 250 A molded case circuit breaker, TMF 175-1750 A thermal-magnetic trip, 3-pole, current production. 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":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/XT4NU3175AFJ000XXX/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy XT4NU3175AFJ000XXX and get a price?","answer":"This part 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."},{"question":"What is the closest alternative to XT4NU3175AFJ000XXX in the XT4 family?","answer":"Within the same XT4N 250 A frame, the difference between order codes is typically the trip unit type (TMF vs. electronic) or the terminal configuration (front vs. extended lugs). The TMF 175-1750 A thermal-magnetic trip is the defining feature here; an electronic-trip variant would offer adjustable long-time, short-time, and ground-fault curves but at a higher cost and with a different footprint for the trip-unit power supply."},{"question":"What compliance documentation does ABB provide for XT4NU3175AFJ000XXX?","answer":"The UL/CSA listing is the primary compliance mark, covering branch-circuit protection per UL 489 and CSA C22.2 No. 5. ABB typically provides a Declaration of Conformity for CE marking and RoHS/REACH compliance documentation on request through the distributor channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT4NU3175AFJ000XXX","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/XT4NU3175AFJ000XXX when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}