{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S201-K3A","brand":"ABB","brandSlug":"abb","productSlug":"S201-K3A","canonicalUrl":"https://aoctrl.com/abb/S201-K3A","factsUrl":"https://aoctrl.com/api/mcp/products/S201-K3A","rawCanonicalId":null},"summary":{"shortDescription":"ABB, System pro M compact, miniature circuit breaker, S201-K3A, K-curve 3 A, DIN rail mount.","salesMarkdown":"The K-curve means it trips magnetically between 8 and 12 times rated current (In). That puts it between the B and C curves on short-circuit sensitivity — it tolerates the inrush of motor starters and small transformers without nuisance tripping, but still clears a hard fault fast enough for most distribution coordination schemes.","metaTitle":"ABB S201-K3A Miniature Circuit Breaker, K-Curve 3A","metaDescription":"ABB S201-K3A miniature circuit breaker, 3A K-curve, DIN rail mount. Current lifecycle status, sourced to order. Part # S201-K3A, weight 0.14 kg.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Part #":"S201-K3A","Weight":"0.14 kgs","Category":"Circuit Breakers","Sub Category":"Din Rail Mount Circuit Breakers","Top Category":"Circuit Breakers, Fuses & Protection","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$71.49","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S201-K3A/alternatives.json"},"ai":{"faq":[{"question":"What is the S201-K3A used for?","answer":"It is a 3 A K-curve miniature circuit breaker for DIN rail mounting, used to protect branch circuits with motor or transformer loads where a moderate inrush tolerance is needed."},{"question":"Where can I buy the S201-K3A?","answer":"The S201-K3A is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"How does the S201-K3A compare to the SH201T-C16?","answer":"The SH201T-C16 is a different form factor — System pro T compact, 0.06 kg vs 0.14 kg — and a C-curve 16 A rating. The S201-K3A is a K-curve 3 A breaker from the System pro M series. They are not drop-in replacements; the panel footprint and trip characteristics differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S201-K3A","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/S201-K3A 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}}