{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XT4HU3175AFF000XXX","brand":"ABB","brandSlug":"abb","productSlug":"XT4HU3175AFF000XXX","canonicalUrl":"https://aoctrl.com/abb/XT4HU3175AFF000XXX","factsUrl":"https://aoctrl.com/api/mcp/products/XT4HU3175AFF000XXX","rawCanonicalId":null},"summary":{"shortDescription":"ABB Tmax XT4, molded case circuit breaker, 175A, 3-pole, 480/600VAC, 65kAIC, thermal-magnetic fixed trip, panel mount.","salesMarkdown":"## What 175 A and 65 kA mean for the panel The ABB XT4HU3175AFF000XXX is a 3-pole molded case circuit breaker (MCCB) in the Tmax XT4 frame, rated 175 A continuous with a 65 kA interrupting capacity at 480/600 VAC. The 175 A fixed thermal-magnetic trip (TMF) handles overloads on the thermal bimetal curve and instantaneous magnetic trips on short-circuit; no interchangeable trip unit, so the rating is locked at order time. Panel-mount design — the breaker bolts directly to the enclosure backplate, not a DIN rail. That gives a stiffer mechanical tie for high-vibration environments like turbine pitch cabinets or industrial pump skids. The XT4 frame accepts line and load lugs up to the rated ampacity; verify lug kit compatibility for your conductor size at ordering. No plug-in base; this is a fixed-mount unit, so factor in the drilling template during panel layout.","metaTitle":"ABB XT4HU3175AFF000XXX MCCB, 175A 3P 600V 65kA","metaDescription":"ABB XT4HU3175AFF000XXX molded case circuit breaker, 175A, 3-pole, 600VAC, 65kA interrupting rating. Current lifecycle stage, sourced to order. RFQ for availability and pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Amps":"175","Poles":"3","title":"XT4HU3175AFF000XXX","Mounting":"Panel","Volts AC":"600","description":"Breaker, Molded Case, TMF, 175A, 3P, 480/600VAC, 65kAIC|Tmax Breaker Frame Size XT4H, 175 Thermal Magnetic, Fixed 175-1750, 3-Pole Fixed, 480/600 Volt AC, 65 kAIC","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/fe89537d7338be52d898d267ca6162d9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy XT4HU3175AFF000XXX and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the interrupting rating of this breaker?","answer":"The interrupting rating is 65 kA at 480/600 VAC. That means it can safely clear a fault current up to 65,000 amperes without internal arc damage or external flash — a key spec for high-fault panels in industrial and utility-scale installations."},{"question":"What does the 175 A rating mean for motor protection?","answer":"The 175 A continuous rating, combined with the thermal-magnetic trip curve, is sized for feeder protection or large motor branch circuits. The thermal element tracks I²t heating; the magnetic element provides instantaneous trip on short-circuit. For motor starting, verify the inrush duration against the trip curve — the fixed TMF may require coordination with a separate overload relay for motor overload protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/XT4HU3175AFF000XXX","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/XT4HU3175AFF000XXX 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}}