{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT4NU3150AFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT4NU3150AFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT4NU3150AFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT4NU3150AFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT4N series molded case circuit breaker, order code XT4NU3150AFF000XXX, 3-pole, 150 A continuous, 600 VAC, 65 kA interrupting rating, panel mount.","salesMarkdown":"The ABB XT4NU3150AFF000XXX is a 3-pole molded case circuit breaker from the XT4N series, rated for 150 A continuous current at 600 VAC. Panel-mounted design — no DIN rail adapter. The breaker bolts directly to a backplate or enclosure sub-panel, which is typical for MCCB sizes above 100 A where the mechanical forces during a short-circuit event are higher than a snap-on foot can reliably hold. Plan for a drilled and tapped mounting pattern; the XT4N frame footprint is shared across the 160 A and 250 A TMF versions, so a panel layout can be standardized across multiple breaker ratings. ## What the 150 A rating means in practice For motor branch circuits, this typically protects a 75–100 HP motor at 480 V (depending on full-load amps and starting curve). The 3-pole configuration handles three-phase loads; the breaker interrupts all three phases simultaneously on a fault, which is required by code for polyphase motor and feeder protection.","metaTitle":"ABB XT4NU3150AFF000XXX XT4N 3-Pole 150A 600VAC Panel Mount M","metaDescription":"ABB XT4NU3150AFF000XXX XT4N molded case circuit breaker, 3-pole, 150 A, 600 VAC, 65 kA interrupting rating, panel mount. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Amps":"150","Poles":"3","title":"XT4NU3150AFF000XXX","Mounting":"Panel","Volts AC":"600","description":"ABB XT4NU3150AFF000XXX XT4N 250 TMF|ABB XT4NU3150AFF000XXX XT4N 2","lifecycle_stage":"current","Interrupt Rating AC":"65 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/589f7caf1f7d0ee350c4886d584768e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the interrupting rating of XT4NU3150AFF000XXX?","answer":"65 kA at 600 VAC. This is the maximum fault current the breaker can safely interrupt without damage to itself or downstream equipment, assuming proper series rating coordination."},{"question":"Where can I buy XT4NU3150AFF000XXX?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."},{"question":"What is the closest alternative to XT4NU3150AFF000XXX in the XT4 family?","answer":"Within the same XT4N frame, the 160 A TMF version (XT4NU3160AFF000XXX) shares the same panel footprint, mounting pattern, and 65 kA interrupting rating — the difference is the thermal-magnetic trip rating. For a 150 A load, the 160 A unit provides a slightly higher continuous threshold; verify coordination with your upstream protective device before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT4NU3150AFF000XXX","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/XT4NU3150AFF000XXX 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}}