{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4450-8CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4450-8CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4450-8CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4450-8CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4 series MCB, 5SY4450-8CV, 4-pole D50, Icu=15 kA at 400 V, current lifecycle.","salesMarkdown":"The 'D' curve means it tolerates the inrush of motor and transformer loads, tripping magnetically between 10x and 20x rated current, so it's a natural fit for a panel feeding a pump or a compressor bank.","metaTitle":"5SY4450-8CV MCB, 15 kA 400V 4P D50, Siemens 5SY4","metaDescription":"Siemens 5SY4450-8CV MCB, 15 kA breaking capacity at 400 V, 4-pole D50 curve. Current production lifecycle. 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":"https://cdn.aoctrl.com/ef0a5c8dbb3b6ee88eb09542a9d41221.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531639&mlfb=5SY4450-8CV","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4450-8CV/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY4450-8CV and how do I get a price?","answer":"The 5SY4450-8CV is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 5SY4450-8CV's breaking capacity?","answer":"The 5SY4450-8CV has a rated breaking capacity (Icu) of 15 kA at 400 V AC, making it suitable for high-fault-current industrial panels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4450-8CV","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/5SY4450-8CV 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}}