{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S201MR-K4","brand":"ABB","brandSlug":"abb","productSlug":"S201MR-K4","canonicalUrl":"https://aoctrl.com/abb/S201MR-K4","factsUrl":"https://aoctrl.com/api/mcp/products/S201MR-K4","rawCanonicalId":null},"summary":{"shortDescription":"ABB S200MR series, S201MR-K4, 1-pole miniature circuit breaker, 4 A, Trip Curve K, 277 VAC, 10 kA interrupting rating, DIN rail mount.","salesMarkdown":"The ABB S201MR-K4 is a 1-pole miniature circuit breaker from the S200MR series, rated 4 A with a Trip Curve K characteristic. It mounts on a standard DIN rail and interrupts fault currents up to 10 kA at 277 VAC — that's the full SCCR rating for this pole, so it handles branch-circuit faults without cascading upstream in a panel.","metaTitle":"ABB S201MR-K4 MCB, 1-Pole, 4A, Curve K, 10kA, DIN Rail","metaDescription":"ABB S201MR-K4 miniature circuit breaker, 1-pole, 4 A, Trip Curve K, 277 VAC, 10 kA interrupting rating, DIN rail mount. Current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Amps":"4","Type":"Trip Curve K","Poles":"1","Mounting":"DIN Rail","Volts AC":"277","lifecycle_stage":"current","Interrupt Rating AC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$44.48","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2c450096972de490f3727460877156c2.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S201MR-K4/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of S201MR-K4?","answer":"10 kA at 277 VAC — that's the full fault-interruption capacity for this single pole, matching the S203-C10 in the same series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S201MR-K4","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/S201MR-K4 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}}