{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4563-8CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4563-8CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4563-8CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4563-8CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4563-8CV, MCB, Icu=15kA 230/400V, 1P+N, D63.","salesMarkdown":"The Siemens 5SY4563-8CV is a miniature circuit breaker (MCB) with a D63 characteristic, rated for 1-pole-plus-neutral (1P+N) operation and a 15 kA interrupting capacity at 230/400 V. In a panel with a transformer-fed bus that can deliver 15 kA of prospective short-circuit current, this MCB clears the fault within its rating — no cascading failure upstream. The 1P+N configuration switches the line conductor only; the neutral is switched but not protected, which is standard for single-phase branch circuits where the neutral is bonded to ground at the source. ## Panel integration Snap-on DIN rail mounting, standard 1-module width per pole. The D63 rating draws 63 A continuous — verify the busbar and downstream conductor ampacity match. In a crowded enclosure, the 15 kA interrupting rating holds without additional current-limiting fuses upstream, saving DIN space.","metaTitle":"Siemens 5SY4563-8CV MCB, 1P+N D63, 15kA Icu 230/400V","metaDescription":"Siemens 5SY4563-8CV miniature circuit breaker, 1P+N, D63 curve, 15kA interrupting capacity at 230/400V. Current lifecycle stage. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"title":"5SY4563-8CV","description":"MCB Icu=15KA 230/400V 1P+N D63","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8112d855fd4ccf262fb9ed048f445ac3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531677&mlfb=5SY4563-8CV"},"ai":{"faq":[{"question":"What is the interrupting capacity of the 5SY4563-8CV?","answer":"The interrupting capacity is 15 kA at 230/400 V, which is the maximum fault current the breaker can safely clear."},{"question":"Where can I buy the 5SY4563-8CV?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4563-8CV","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/5SY4563-8CV 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}}