{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203MUC-K6","brand":"ABB","brandSlug":"abb","productSlug":"S203MUC-K6","canonicalUrl":"https://aoctrl.com/abb/S203MUC-K6","factsUrl":"https://aoctrl.com/api/mcp/products/S203MUC-K6","rawCanonicalId":null},"summary":{"shortDescription":"ABB S200MUC series, miniature circuit breaker, 3-pole, Trip Curve K, 6 A, 277 VAC / 500 VDC, 6 kA interrupting capacity AC.","salesMarkdown":"The interrupting capacity is 6 kA AC and 10 kA DC — figures that govern its fault-clearing ability in a distribution board. Trip Curve K is the key selection parameter here. It's designed for inductive and motor-starting loads where inrush currents are higher than resistive loads — the magnetic trip threshold is typically 8–12× rated current, so a 6 A K-curve breaker holds through the start-up surge of a small motor or transformer without nuisance tripping, yet still provides short-circuit protection. The 6 A continuous rating means it protects a circuit drawing up to 6 A steady-state. The 10 kA DC rating is notably higher — useful for DC bus or battery-backed circuits where fault currents can be stiffer.","metaTitle":"ABB S203MUC-K6 MCB 3P K 6A, DIN Rail","metaDescription":"ABB S203MUC-K6 miniature circuit breaker, 3-pole, Trip Curve K, 6 A, 277 VAC / 500 VDC, 6 kA interrupting capacity AC. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Amps":"6","Type":"Trip Curve K","Poles":"3","title":"S203MUC-K6","Mounting":"DIN Rail","Volts AC":"277","Volts DC":"500","description":"ABB S203MUC-K6 MCB S200MUC 3P K 6A|ABB S203MUCK6 MCB S200MUC 3P","lifecycle_stage":"current","Interrupt Rating AC":"6 kA","Interrupt Rating DC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c9e74923c6274bd1ddfe4337da6b47b7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is S203MUC-K6's listed amps and trip curve?","answer":"It is a 6 A, 3-pole breaker with Trip Curve K characteristic. The K curve means magnetic trip at 8–12× rated current, suited for inductive loads."},{"question":"Where can I buy S203MUC-K6 and get current pricing?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203MUC-K6","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/S203MUC-K6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}