{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4450-7CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4450-7CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY4450-7CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4450-7CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4450-7CC11, miniature circuit breaker, 400 V, 10 kA, 4-pole, C-curve, 50 A, for railway applications.","salesMarkdown":"The Siemens 5SY4450-7CC11 is a 4-pole miniature circuit breaker rated 400 V with a 10 kA breaking capacity, C-curve trip characteristic, and 50 A current rating, explicitly specified for railway applications. ## Deployment context Snap-on DIN rail mounting for standard 35 mm rail in railway control panels or distribution boards. The 4-pole width (72 mm, 4 modules) fits alongside other Siemens 5SY series breakers in a common enclosure.","metaTitle":"Siemens 5SY4450-7CC11 MCB, 400V 10kA, 4-pole C-curve 50A, ra","metaDescription":"Siemens 5SY4450-7CC11 miniature circuit breaker, 400V 10kA, 4-pole, C-curve, 50A, for railway applications. Current lifecycle. Sourced to order.","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/8e0a11049abd4c76a6956bc9bd3cce98.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=339234&mlfb=5SY4450-7CC11","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4450-7CC11/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY4450-7CC11?","answer":"It has a 10 kA breaking capacity at 400 V, suitable for railway auxiliary circuits with high prospective fault currents."},{"question":"Where can I buy 5SY4450-7CC11?","answer":"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":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4450-7CC11","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/5SY4450-7CC11 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}}