{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT4LU3150AFF00NXXX","brand":"ABB","brandSlug":"abb","productSlug":"XT4LU3150AFF00NXXX","canonicalUrl":"https://aoctrl.com/abb/XT4LU3150AFF00NXXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT4LU3150AFF00NXXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT4LU3150AFF00NXXX, XT4L 250 TMF 150-1500 3P F F UL/CSA molded case circuit breaker, 3-pole, F-F lug terminations.","salesMarkdown":"## What the TMF 150-1500 trip means for your panel The XT4LU3150AFF00NXXX: The TMF 150-1500 designation tells you the trip unit is a thermal-magnetic fixed type, adjustable across a 150 A to 1500 A range. That's a wide band — you dial it in for the actual load, not the breaker's ultimate interrupt capacity. The thermal element handles overloads (slow, heat-based), and the magnetic element catches short-circuit faults (instantaneous). For a 3-pole unit on a 480 V motor circuit, you'd typically set it around 125% of the full-load amps per NEC. The UL/CSA listing means it's accepted in North American panels without extra paperwork.","metaTitle":"ABB XT4LU3150AFF00NXXX XT4L 250 TMF 150-1500 3P F F UL/CSA","metaDescription":"ABB XT4LU3150AFF00NXXX molded case circuit breaker, XT4L 250 frame, TMF 150-1500 A trip, 3-pole. 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":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/XT4LU3150AFF00NXXX/alternatives.json"},"ai":{"faq":[{"question":"What does the description XT4L 250 TMF 150-1500 3P F F UL/CSA mean?","answer":"It describes a molded case circuit breaker from the XT4L 250 A frame, with a thermal-magnetic fixed trip unit adjustable from 150 A to 1500 A, 3-pole, front-to-front lug terminations, and UL/CSA certified."},{"question":"Where can I buy XT4LU3150AFF00NXXX?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT4LU3150AFF00NXXX","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/XT4LU3150AFF00NXXX 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}}