{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203MR-K1","brand":"ABB","brandSlug":"abb","productSlug":"S203MR-K1","canonicalUrl":"https://aoctrl.com/abb/S203MR-K1","factsUrl":"https://aoctrl.com/api/mcp/products/S203MR-K1","rawCanonicalId":null},"summary":{"shortDescription":"ASEA BROWN BOVERI, S203MR-K1, Molded Case Circuit Breaker, current production.","salesMarkdown":"ASEA BROWN BOVERI, S203MR-K1, Molded Case Circuit Breaker, current production.","metaTitle":"ABB S203MR-K1 Molded Case Circuit Breaker, Current Productio","metaDescription":"ABB S203MR-K1 molded case circuit breaker in current production. Sourced to order against RFQ. Category: Circuit Breakers, Fuses & Protection.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Part #":"S203MR-K1","Weight":"0.00 kgs","Category":"Circuit Breakers","Sub Category":"Molded Case Circuit Breakers","Top Category":"Circuit Breakers, Fuses & Protection","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$160.39","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S203MR-K1/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy S203MR-K1 and how do I get a price?","answer":"The S203MR-K1 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 price and lead-time estimate."},{"question":"What is S203MR-K1's listed part number?","answer":"The listed part number is S203MR-K1."},{"question":"Will S203MR-K1 drop into a panel that was specified around S204M-C16 without rewiring?","answer":"Both are ABB molded case circuit breakers in the same category, so the DIN-rail footprint and terminal layout are likely similar. But the S204M-C16 is a 4-pole unit (S204 prefix) while the S203MR-K1 is 3-pole (S203 prefix) — verify the pole count matches your panel wiring before assuming a direct swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203MR-K1","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/S203MR-K1 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}}