{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4163-8CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4163-8CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4163-8CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4163-8CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY series MCB, 1-pole, D63 characteristic, Icu=15kA at 230/400V AC, order code 5SY4163-8CV.","salesMarkdown":"The Siemens 5SY4163-8CV is a 1-pole miniature circuit breaker with a D63 tripping characteristic and a rated ultimate breaking capacity (Icu) of 15 kA at 230/400 V AC. It's a current-production part, so no last-time-buy clock is ticking on this order code. The D63 curve means the magnetic trip fires at 10 to 20 times rated current (630 to 1260 A), designed for loads with a high inrush — motor circuits, transformer primaries, or welding equipment. For a 63 A breaker at 400 V, that's a solid margin for most industrial distribution boards.","metaTitle":"Siemens 5SY4163-8CV MCB, 1P D63, 15kA Icu","metaDescription":"Siemens 5SY4163-8CV miniature circuit breaker, 1-pole D63 curve, 15kA breaking capacity at 230/400V. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7e2ca0cc42c4bb94e588eeb44b592d03.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531891&mlfb=5SY4163-8CV","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4163-8CV/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SY4163-8CV?","answer":"The rated ultimate breaking capacity (Icu) is 15 kA at 230/400 V AC, per the specification. That's the maximum fault current it can safely interrupt once."},{"question":"Where can I buy the 5SY4163-8CV?","answer":"We source this part 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":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4163-8CV","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/5SY4163-8CV 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}}