{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203-D10","brand":"ABB","brandSlug":"abb","productSlug":"S203-D10","canonicalUrl":"https://aoctrl.com/abb/S203-D10","factsUrl":"https://aoctrl.com/api/mcp/products/S203-D10","rawCanonicalId":null},"summary":{"shortDescription":"ABB S203-D10, 3-phase miniature circuit breaker, D-curve, 10 A rated current, DIN rail mount, 0.47 kg.","salesMarkdown":"The ABB S203-D10 is a three-pole miniature circuit breaker (MCB) with a D-tripping characteristic, rated at 10 A. It mounts on a standard DIN rail in a distribution panel or sub-board. The D-curve means it tolerates the high inrush currents typical of motor and transformer loads — the magnetic trip threshold sits at 10–20× rated current, so it won't nuisance-trip on startup but clears a hard fault fast.","metaTitle":"ABB S203-D10 3-Phase MCB, D-Curve 10A, DIN Rail","metaDescription":"ABB S203-D10 3-phase miniature circuit breaker, D-curve 10A, DIN rail mount. Active production, sourced to order. RFQ for volume pricing and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Part #":"S203-D10","Weight":"0.47 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":"$16.51","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S203-D10/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy S203-D10 and how is it quoted?","answer":"The S203-D10 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will S203-D10 drop into a panel specified around S273-K40A?","answer":"Both are three-pole DIN-rail MCBs from the same ABB S200 family, so the mechanical footprint and busbar pitch are identical. The difference is the trip curve: S203-D10 is a D-curve (10–20× In magnetic trip) while the S273-K40A is a K-curve (8–12× In). If the panel was coordinated for K-curve, dropping in a D-curve may change selectivity with downstream devices — verify coordination before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203-D10","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/S203-D10 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}}