{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S802U-K100","brand":"ABB","brandSlug":"abb","productSlug":"S802U-K100","canonicalUrl":"https://aoctrl.com/abb/S802U-K100","factsUrl":"https://aoctrl.com/api/mcp/products/S802U-K100","rawCanonicalId":null},"summary":{"shortDescription":"ABB S800 series, S802U-K100, 2-pole miniature circuit breaker, 100 A, Trip Curve K, 240 VAC, 25 kA interrupting rating, DIN rail mount.","salesMarkdown":"The S802U-K100 is a 2-pole miniature circuit breaker from the ABB S800 series, rated 100 A at 240 VAC with a Trip Curve K characteristic. That 100 A continuous rating and 25 kA interrupting capacity mean it handles high-current branch circuits — think large motor starters, welder feeds, or main distribution panels — where fault currents can hit serious levels. The K curve is the key: it holds through moderate inrush (motors, transformers) but trips fast on a hard short, tighter than a D curve but looser than a C. For a 100 A motor load, that's the difference between nuisance trips on startup and actual protection. ## Panel integration Snaps onto standard DIN rail — no special mounting hardware needed. Two-pole footprint keeps panel space tight; at 100 A, the S800 series uses a wider module than the S200 line, so check your enclosure fill factor before committing the layout. Rated for 240 VAC, so it's a straight fit into North American 120/240 V split-phase or European 230/400 V distribution panels on the line-to-neutral leg.","metaTitle":"S802U-K100 MCB 2P K 100A, 25 kA","metaDescription":"S802U-K100 miniature circuit breaker, 2-pole, 100 A, Trip Curve K, 240 VAC, 25 kA interrupting rating. Current lifecycle stage, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Amps":"100","Type":"Trip Curve K","Poles":"2","title":"S802U-K100","Mounting":"DIN Rail","Volts AC":"240","description":"MCB S800 2P K 100A|MCB S800 2P K 100A","lifecycle_stage":"current","Interrupt Rating AC":"25 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$172.72","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/74c2ad9205e5b21b915f564b1477ac4c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is S802U-K100 used for?","answer":"It's a 2-pole miniature circuit breaker rated 100 A with Trip Curve K, designed for motor and transformer branch circuits where moderate inrush tolerance is needed, paired with a 25 kA interrupting capacity for high-fault-current distribution panels."},{"question":"Where can I buy S802U-K100?","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 commitment."},{"question":"Will S802U-K100 drop into a panel specified around S202P-K32 without rewiring?","answer":"No — the S202P-K32 is a 32 A, 2-pole, K-curve breaker from the S200 series with a 10 kA interrupting rating at 277 VAC, while the S802U-K100 is a 100 A, 25 kA device from the S800 series. The S800 series uses a wider module footprint, so it won't fit the same DIN-rail slot without panel rework and busbar changes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S802U-K100","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/S802U-K100 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}}