{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203MR-K2","brand":"ABB","brandSlug":"abb","productSlug":"S203MR-K2","canonicalUrl":"https://aoctrl.com/abb/S203MR-K2","factsUrl":"https://aoctrl.com/api/mcp/products/S203MR-K2","rawCanonicalId":null},"summary":{"shortDescription":"ABB, S200MR series, molded case circuit breaker, 3-pole, K-curve, 2 A, order code S203MR-K2, current production lifecycle.","salesMarkdown":"It's a panel-mount device for overcurrent and short-circuit protection in distribution boards and control cabinets — the K-curve characteristic suits inductive loads like motor starters and transformer primaries where nuisance tripping from inrush must be avoided. ## Deployment Context Mounts in a standard distribution board or control panel enclosure. The K-curve at 2 A provides coordination with downstream loads that draw high inrush — think small contactor coils, solenoid valves, or control transformers — without tripping on the initial surge. For a maintenance planner holding a line-down situation, this is the exact ABB order code for the S200MR family; no cross-reference substitution without verifying the trip curve and interrupting rating against the existing panel schedule.","metaTitle":"ABB S203MR-K2 S200MR MCCB, 3P K 2A, Current Production","metaDescription":"ABB S203MR-K2 S200MR 3-pole K-curve 2A MCCB, current lifecycle stage. Sourced to order against RFQ. Weighs 1.36 kg.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Part #":"S203MR-K2","Weight":"1.36 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":"$167.32","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S203MR-K2/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203MR-K2","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-K2 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}}