{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S203-D25","brand":"ABB","brandSlug":"abb","productSlug":"S203-D25","canonicalUrl":"https://aoctrl.com/abb/S203-D25","factsUrl":"https://aoctrl.com/api/mcp/products/S203-D25","rawCanonicalId":null},"summary":{"shortDescription":"ABB S203-D25 miniature circuit breaker, 3-pole, 25 A, Trip Curve D, 277 VAC, 10 kA interrupting rating, DIN rail mount.","salesMarkdown":"The S203-D25 is a 3-pole miniature circuit breaker rated 25 A with a Trip Curve D characteristic, meaning it tolerates the high inrush currents typical of motor loads, transformers, and other inductive equipment without nuisance tripping — the magnetic trip threshold sits at 10–20× rated current, so a 25 A motor starting at 400 A peak clears the curve. DIN-rail mounting snaps into the standard 35 mm profile, so it drops into any existing distribution board without drilling or adapters. ## Peer comparison: S203-D13 vs S203-D25 The S203-D13 is the same 3-pole, Curve D, 277 VAC, 10 kA breaker but rated 13 A instead of 25 A. If your panel was built around the D13 and you need more headroom for a larger motor or additional load, the D25 is a direct mechanical swap — same DIN-rail footprint, same pole count, same trip curve. No rewiring or bus-bar rework needed; just verify the downstream conductor and load protection coordination at the higher ampacity.","metaTitle":"S203-D25 Miniature Circuit Breaker, 25A, Curve D, 3-Pole, 10","metaDescription":"S203-D25 miniature circuit breaker from ABB. 25 A, Trip Curve D, 3-pole, 277 VAC, 10 kA interrupting rating. DIN rail mount. Current production. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Amps":"25","Type":"Trip Curve D","Poles":"3","title":"S203-D25","Mounting":"DIN Rail","Volts AC":"277","description":"Miniature Circuit Breaker, 3P, 25A|Miniature Circuit Breaker, 3 Pole, 25 Amp","lifecycle_stage":"current","Interrupt Rating AC":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$22.23","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/78328b4915ea96b5026f8fced3958e08.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy S203-D25 and get a price?","answer":"The S203-D25 is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote to confirm availability and current pricing."},{"question":"Will S203-D25 drop into a panel specified around S203-D13 without rewiring?","answer":"Yes, the S203-D25 shares the same 3-pole DIN-rail footprint, same Trip Curve D, and same 277 VAC / 10 kA rating as the S203-D13, so it is a direct mechanical swap. No rewiring or bus-bar changes needed, but verify conductor sizing and load protection coordination at the higher 25 A rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S203-D25","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-D25 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}}