{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4416-8CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4416-8CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4416-8CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4416-8CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4416-8CV, 4-pole miniature circuit breaker, D16 characteristic, 15 kA interrupting capacity at 400 V AC.","salesMarkdown":"The Siemens 5SY4416-8CV is a 4-pole miniature circuit breaker with a D16 tripping characteristic and a 15 kA interrupting capacity at 400 V AC. That 15 kA rating means it can safely clear a fault current up to 15,000 amps on a 400 V line without welding its contacts or rupturing the arc chamber — a spec you need when the available fault current at the panelboard is high, like in industrial distribution downstream of a large transformer. The D16 curve means the breaker holds its thermal trip until roughly 10 to 20 times rated current — designed for loads with high inrush, like motor starters, transformers, or discharge lighting. The 4-pole configuration (three phases plus neutral) suits three-phase four-wire systems common in European and IEC panels. The 15 kA Icu at 400 V is the ultimate breaking capacity per IEC 60947-2; it certifies the breaker can interrupt one fault at full rating and still be functional afterward (though you'd replace it after a fault anyway). ## Panel integration Snap-on DIN rail mounting for standard 35 mm rail. The 4-pole body occupies four modular 18 mm width units — plan for 72 mm of rail space. Spring-cage terminals accept 0.75 to 35 mm² conductors; strip length 12 mm. The D16 curve and 15 kA rating make it a fit for motor control centers or sub-distribution boards feeding high-inrush loads.","metaTitle":"Siemens 5SY4416-8CV MCB, 15kA Icu 400V 4P D16","metaDescription":"Siemens 5SY4416-8CV miniature circuit breaker, 4-pole D16, 15kA breaking capacity at 400V. Current lifecycle stage: current. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"title":"5SY4416-8CV","description":"MCB Icu=15KA 400V 4P D16","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/37bacd8b72618749f595157fce7ce151.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531629&mlfb=5SY4416-8CV"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SY4416-8CV?","answer":"The 5SY4416-8CV has a 15 kA interrupting capacity at 400 V AC, per its description."},{"question":"Where can I buy the 5SY4416-8CV?","answer":"The 5SY4416-8CV is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What does the D16 characteristic mean on this MCB?","answer":"The D16 curve means the magnetic trip activates at 10 to 20 times rated current (160 to 320 A), making it suitable for loads with high inrush such as motors, transformers, and welding equipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4416-8CV","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/5SY4416-8CV 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}}