{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4450-7CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4450-7CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4450-7CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4450-7CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4450-7CV, MCB, Icu=15kA at 400 V, 4-pole, C50 characteristic.","salesMarkdown":"The Siemens 5SY4450-7CV is a 4-pole miniature circuit breaker (MCB) with a C50 trip characteristic and a short-circuit breaking capacity Icu of 15 kA at 400 V. The C50 curve means it trips between 5 and 10 times rated current (50 A), so it's sized for motor or transformer inrush without nuisance tripping on moderate overloads. The 15 kA Icu at 400 V tells you it can safely interrupt fault currents up to that level on a 400 V three-phase supply — a standard requirement for industrial panel feeders where the prospective short-circuit current is high. This is a DIN-rail mounted device, so it clips directly into the panel's distribution board alongside other modular protection gear.","metaTitle":"5SY4450-7CV MCB, 15kA 400V 4P C50, current production","metaDescription":"5SY4450-7CV MCB, Icu=15kA at 400V, 4-pole C50 curve. Lifecycle stage: current. Sourced to order against RFQ. Get pricing and availability at quote time.","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/e36e4efafd29ed04ef8182cae83bf31d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531638&mlfb=5SY4450-7CV","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4450-7CV/alternatives.json"},"ai":{"faq":[{"question":"What is 5SY4450-7CV's listed breaking capacity?","answer":"The 5SY4450-7CV has a short-circuit breaking capacity Icu of 15 kA at 400 V, 4-pole, with a C50 trip characteristic."},{"question":"How do I get current pricing and availability for 5SY4450-7CV?","answer":"Current pricing and availability are confirmed at quote time against an RFQ. Submit a request through the storefront to receive a firm quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4450-7CV","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/5SY4450-7CV 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}}