{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT1SU3070AFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT1SU3070AFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT1SU3070AFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT1SU3070AFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB XT1S 125 series molded case circuit breaker, order code XT1SU3070AFF000XXX, 70 A, 3-pole, 480 VAC, 35 kA interrupting rating, panel mount.","salesMarkdown":"## 70 A MCCB with 35 kA interrupting capacity The ABB XT1SU3070AFF000XXX is a 3-pole molded case circuit breaker from the XT1S 125 series, rated 70 A continuous at 480 VAC. Panel-mount construction suits enclosure-based distribution, not DIN-rail assembly. The 70 A thermal-magnetic trip unit (TMF 70-700) provides fixed thermal and magnetic settings. For selective coordination downstream, verify that the instantaneous pickup of this breaker clears faults before the upstream device trips — the 35 kA SCCR gives headroom for most industrial panels. The 3-pole construction covers three-phase loads; the neutral is not switched. ## Panel integration Panel-mount design requires a cutout and four mounting screws — no DIN rail adapter. The XT1S 125 frame accepts plug-in accessories (auxiliary contacts, shunt trip, undervoltage release) that snap into the front accessory slot without removing the breaker. Torque terminals to the manufacturer's specification; the line and load lugs accept copper or aluminum conductors.","metaTitle":"ABB XT1SU3070AFF000XXX XT1S 125 MCCB, 70 A, 3P, 35 kA","metaDescription":"ABB XT1SU3070AFF000XXX XT1S 125 molded case circuit breaker, 70 A, 3-pole, 480 VAC, 35 kA interrupting rating. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Amps":"70","Poles":"3","title":"XT1SU3070AFF000XXX","Mounting":"Panel","Volts AC":"480","description":"ABBTB XT1SU3070AFF000XXX XT1S 125|ABBTB XT1SU3070AFF000XXX XT1S 125 TMF 70-700 3P F F UL/CSA","lifecycle_stage":"current","Interrupt Rating AC":"35 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ad22a277daf569fbe6eebf6529c1c245.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy XT1SU3070AFF000XXX and how do I 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 functional second-source for XT1SU3070AFF000XXX?","answer":"The peer XT1NU3090AFF000XXX is the same XT1S 125 frame and 3-pole construction but rated 90 A instead of 70 A. It will not drop into a panel specified for 70 A without re-evaluating the load and coordination study — the higher amp rating changes the trip curve and may require upstream device adjustment. For a direct 70 A replacement, the XT1SU3070AFF000XXX is the correct order code."},{"question":"What are the key ratings of XT1SU3070AFF000XXX?","answer":"70 A continuous, 3-pole, 480 VAC, 35 kA interrupting rating at 480 V. Panel mount. Thermal-magnetic trip (TMF 70-700)."},{"question":"Will XT1SU3070AFF000XXX drop into a panel specified around XT1NU3090AFF000XXX without rewiring?","answer":"No — the 90 A peer has a higher continuous rating and different trip calibration. The physical frame and mounting pattern are the same, but the breaker's protective settings are mismatched for a circuit designed for 70 A. Use the XT1SU3070AFF000XXX for 70 A applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT1SU3070AFF000XXX","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/XT1SU3070AFF000XXX 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}}