{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S803S-K100","brand":"ABB","brandSlug":"abb","productSlug":"S803S-K100","canonicalUrl":"https://aoctrl.com/abb/S803S-K100","factsUrl":"https://aoctrl.com/api/mcp/products/S803S-K100","rawCanonicalId":null},"summary":{"shortDescription":"ABB S800S series, S803S-K100, 3-pole miniature circuit breaker, 100 A, Trip Curve K, 50 kA interrupting capacity at 230 VAC, DIN rail mount.","salesMarkdown":"The 100 A rating means it protects a circuit carrying up to that continuous current — typically a motor or transformer primary — without nuisance tripping on inrush. ## Compliance documentation As an ABB S800S series MCB, the S803S-K100 is designed to meet IEC/EN 60898-1 and IEC/EN 60947-2 standards for overcurrent protection. RoHS and REACH compliance documentation is available from the manufacturer on request. The interrupting rating of 50 kA at 230 VAC is tested per IEC 60947-2.","metaTitle":"S803S-K100 MCB, 3P, 100 A, Curve K, 50 kA","metaDescription":"S803S-K100 MCB, 3-pole, 100 A, Trip Curve K, 50 kA interrupting capacity at 230 VAC. DIN rail mount. Current lifecycle. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Amps":"100","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":"$152.40","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cfcb31cb32fe9feda500183da4d34362.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S803S-K100/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to S803S-K100?","answer":"The S203-D13 is a 3-pole, 10 A, Curve D MCB — not a direct second-source for the 100 A, Curve K S803S-K100. The S203-D13 has a 10 kA interrupting rating versus 50 kA, and its Curve D (10–20x In) is tuned for different inrush profiles. For a 100 A, Curve K requirement, the S803S-K100 is the correct part; no drop-in replacement exists without rewiring and re-coordinating the panel."},{"question":"Where can I buy S803S-K100?","answer":"The S803S-K100 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does ABB provide for S803S-K100?","answer":"ABB provides RoHS and REACH compliance declarations, plus IEC/EN 60898-1 and IEC/EN 60947-2 test certifications for the S800S series. The 50 kA interrupting rating at 230 VAC is verified per IEC 60947-2."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S803S-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/S803S-K100 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}}