{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S803S-K10","brand":"ABB","brandSlug":"abb","productSlug":"S803S-K10","canonicalUrl":"https://aoctrl.com/abb/S803S-K10","factsUrl":"https://aoctrl.com/api/mcp/products/S803S-K10","rawCanonicalId":null},"summary":{"shortDescription":"ABB S800S series miniature circuit breaker, S803S-K10, 3-pole, 10 A, Trip Curve K, 230 VAC, 50 kA interrupting rating, DIN rail mount.","salesMarkdown":"The ABB S803S-K10 is a 3-pole miniature circuit breaker from the S800S series, rated at 10 A with Trip Curve K characteristics. It mounts on a standard DIN rail and handles 230 VAC circuits, with a 50 kA interrupting rating that gives real fault-clearing headroom in industrial panels — that's well above the typical 6–10 kA you see on residential-grade breakers, so it's sized for plant-floor distribution where fault currents run higher. Trip Curve K means it's designed for inductive loads — motors, transformers, solenoid valves — where the inrush current is higher than a resistive load but not as sharp as a lighting or drive startup. The magnetic trip threshold on a K-curve typically sits between 8x and 12x the rated current, so it holds through a motor start without nuisance tripping but still clears a hard fault fast. The 50 kA interrupting capacity at 230 VAC means this breaker can safely interrupt a short-circuit fault up to 50,000 A without welding its contacts or venting ionized gas into the panel — that's the kind of rating you spec for a main distribution board or a sub-feed where the available fault current is known to be high.","metaTitle":"ABB S803S-K10 MCB S800S 3P K 10A, 50 kA","metaDescription":"ABB S803S-K10 S800S series miniature circuit breaker, 3-pole, 10 A, Trip Curve K, 230 VAC, 50 kA interrupting rating. DIN rail mount. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Amps":"10","Type":"Trip Curve K","Poles":"3","Mounting":"DIN Rail","Volts AC":"230","lifecycle_stage":"current","Interrupt Rating AC":"50 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$163.83","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/810257c952d5ee4f0d5f111dab2f7a70.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S803S-K10/alternatives.json"},"ai":{"faq":[{"question":"What does Trip Curve K mean on the S803S-K10?","answer":"Trip Curve K means the breaker's magnetic trip threshold is set between 8x and 12x the rated current (80–120 A for this 10 A unit). That makes it suitable for inductive loads like motors, transformers, and solenoid valves where inrush current is high but short-lived — it won't nuisance-trip on a motor start but still clears a hard short fast."},{"question":"Where can I buy the S803S-K10?","answer":"The S803S-K10 is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — no stock count or price is listed here."},{"question":"What is the interrupting rating of the S803S-K10?","answer":"The S803S-K10 has a 50 kA interrupting rating at 230 VAC. That's the maximum fault current it can safely clear without failure, making it suitable for industrial distribution panels where available fault currents are significantly higher than residential-grade breakers handle."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S803S-K10","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/S803S-K10 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}}