{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S803U-K80","brand":"ABB","brandSlug":"abb","productSlug":"S803U-K80","canonicalUrl":"https://aoctrl.com/abb/S803U-K80","factsUrl":"https://aoctrl.com/api/mcp/products/S803U-K80","rawCanonicalId":null},"summary":{"shortDescription":"ABB S803U-K80, Miniature Circuit Breaker, DIN Rail Mount, 80 A, 3 Pole, 240 VAC, Trip Curve K, 50 kA Interrupt Rating.","salesMarkdown":"The S803U-K80 is a 3-pole miniature circuit breaker rated at 80 A continuous, with a Trip Curve K characteristic — meaning it's designed to tolerate the inrush of inductive loads like motors and transformers without nuisance tripping, while still clearing faults fast. The 50 kA interrupting capacity at 240 VAC gives it serious fault-current headroom, suitable for high-capacity sub-distribution or industrial panel feeders where SCCR coordination matters. ## Deployment context The 3-pole form factor handles three-phase circuits up to 240 VAC line-to-line.","metaTitle":"S803U-K80 Miniature Circuit Breaker, 80A 3P Trip Curve K, 50","metaDescription":"S803U-K80 DIN rail MCB, 80 A, 3-pole, 240 VAC, Trip Curve K, 50 kA interrupting capacity. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Amps":"80","Type":"Trip Curve K","Poles":"3","Mounting":"DIN Rail","Volts AC":"240","lifecycle_stage":"current","Interrupt Rating AC":"50 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$464.13","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/04d90aa91b5802d11c8be444be4c9cb5.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S803U-K80/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of the S803U-K80?","answer":"50 kA at 240 VAC, which is a high-interrupt capacity for a miniature circuit breaker — it can safely clear severe fault currents without upstream damage."},{"question":"How do I get current pricing and availability for S803U-K80?","answer":"Submit an RFQ. This part is sourced through independent distribution and quoted to order; availability and price are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S803U-K80","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/S803U-K80 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}}