{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S283UC-Z25","brand":"ABB","brandSlug":"abb","productSlug":"S283UC-Z25","canonicalUrl":"https://aoctrl.com/abb/S283UC-Z25","factsUrl":"https://aoctrl.com/api/mcp/products/S283UC-Z25","rawCanonicalId":null},"summary":{"shortDescription":"ABB S280UC series, miniature circuit breaker (MCB), 3-pole, 25 A, Z characteristic, 500 VDC, order code S283UC-Z25.","salesMarkdown":"The ABB S283UC-Z25 is a 3-pole miniature circuit breaker from the S280UC series, rated 25 A with a Z-curve trip characteristic for 500 VDC applications. The Z-curve trips between 2.5× and 4× In (62.5 A to 100 A magnetic release), which is tighter than a B-curve and faster than a C-curve. That matters when you're protecting semiconductor loads or long DC cable runs where inrush is low but short-circuit clearance needs to be quick — it avoids nuisance trips on moderate overloads while still clearing a hard fault before the downstream devices cook. Rated 500 VDC across three poles in series means this breaker handles the voltage stress of a 500 V battery bank or a DC bus in an industrial drive system. The 3-pole construction ties all three poles mechanically and electrically so that a fault on any one pole opens all three — no single-pole dropout leaving partial voltage on the load side.","metaTitle":"S283UC-Z25 MCB 3P 25A Z-Curve 500VDC, Current Production","metaDescription":"S283UC-Z25 miniature circuit breaker, 3-pole 25A Z-curve 500VDC. Lifecycle stage: current. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/S283UC-Z25/alternatives.json"},"ai":{"faq":[{"question":"What is the S283UC-Z25 rated for?","answer":"It is a 3-pole miniature circuit breaker rated 25 A with a Z-curve trip characteristic for 500 VDC applications, part of the S280UC series."},{"question":"Where can I buy the S283UC-Z25 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/S283UC-Z25","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/S283UC-Z25 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}}