{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT1SU3020AFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT1SU3020AFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT1SU3020AFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT1SU3020AFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT1SU3020AFF000XXX, Molded Case Circuit Breaker, 20 A, TMF, 3-Pole, 480 VAC / 600Y/347 VAC, 22 kAIC, Panel Mount.","salesMarkdown":"## 20 A, 3-pole MCCB with 22 kAIC — what it means on a line The ABB XT1SU3020AFF000XXX is a 20 A, 3-pole molded case circuit breaker (MCCB) with a thermal-magnetic trip (TMF) and a 22 kA interrupting capacity at 480 VAC. Rated for 480 VAC line-to-line and 600Y/347 VAC wye configurations, it covers the common North American 480/277 V distribution panel as well as 600 V class wye systems. The 20 A continuous rating is the load it can carry indefinitely without tripping; the TMF trip curve handles motor inrush and short-circuit events. ## Panel-mount integration This MCCB is panel-mount only — no DIN-rail adapter, no snap-on. The mounting pattern and lug layout are standard for ABB's XT1 frame, so it swaps into existing ABB panel cutouts or a new backplate. For a retrofit, check the bus-bar spacing and lug type (line/load) against what's already in the enclosure. ## What the 22 kAIC buys you The 22 kAIC at 480 VAC is the headline number for a panel designer or MRO planner. In a 480 V panel fed from a 500 kVA transformer, available fault current can hit 20–25 kA. A 22 kAIC breaker gives you headroom there; a 14 kAIC unit would need a current-limiting fuse upstream or a series-rated combination. This one stands alone in that range.","metaTitle":"XT1SU3020AFF000XXX Molded Case Breaker, 20A, 3-Pole, 480V, 2","metaDescription":"ABB XT1SU3020AFF000XXX molded case circuit breaker, 20 A, 3-pole, 480 VAC / 600Y/347 VAC, 22 kAIC, panel mount. Current production. Request a quote for pricing and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Amps":"20","Poles":"3","title":"XT1SU3020AFF000XXX","Mounting":"Panel","Volts AC":"480","description":"Breaker, Molded Case, 20A, TMF, 3P, 480, 600Y/347VAC, 22kAIC|Breaker, Molded Case, 20 Amp, TMF, 3-Pole, 480, 600Y/347 Volt AC, 22 kAIC","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7ad5adfd7369526ed77c8b62777c1448.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the XT1SU3020AFF000XXX and get a price?","answer":"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 number."},{"question":"What does the 22 kAIC rating mean for my panel?","answer":"It means the breaker can safely interrupt a fault current up to 22,000 A at 480 VAC without failing. If your panel's available fault current is under that, this breaker works stand-alone; above it, you'd need a series-rated combination or a higher-AIC device."},{"question":"Is there a direct pin-compatible replacement for this code?","answer":"No official successor or cross-reference is listed for this order code. As a current-production part, the XT1SU3020AFF000XXX is the standard fit — no alternate MPN to swap in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT1SU3020AFF000XXX","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/XT1SU3020AFF000XXX 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}}