{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4463-8CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4463-8CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4463-8CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4463-8CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4 series, 5SY4463-8CV, miniature circuit breaker, 4-pole, 63 A, D characteristic, 15 kA at 400 V AC per IEC 60947-2, 4 modular width units.","salesMarkdown":"## D-curve and load compatibility The D characteristic (10–20× In magnetic trip) is the right choice for loads with a high starting surge — think conveyors, compressors, or large contactor coils — where a C-curve would nuisance-trip on inrush. At 63 A per pole, this breaker handles a 3-phase motor group or a heavy resistive bank without derating the frame. ## Panel fit and environmental tolerance Width is 72 mm (4 modular width units). Sealable terminals allow the panel builder to lock the cover after commissioning, preventing unauthorized tampering. Vibration resistance per IEC 60068-2-6 (±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz) means it holds up on a machine-mounted sub-panel next to a press or conveyor drive.","metaTitle":"Siemens 5SY4463-8CV MCB, 63A 4P D Curve, 15kA IEC 60947-2","metaDescription":"Siemens 5SY4463-8CV miniature circuit breaker, 63A, 4-pole, D tripping characteristic, 15 kA breaking capacity per IEC 60947-2. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY4463-8CV","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60947-2","description":"MCB Icu=15KA 400V 4P D63","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 V","Installation Depth":"70 mm","Degree Of Pollution":"3","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","Supply Voltage Frequency Rated Value":"50/60 Hz","according to IEC 60947-2 rated value":"15 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage Of The Operating Voltage":"AC","operating voltage at DC rated value maximum":"72 V","with single-phase operation at AC rated value":"250 V","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"4.4 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/805c7a06b3415e662373bba62212bd7c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531641&mlfb=5SY4463-8CV"},"ai":{"faq":[{"question":"Where can I buy 5SY4463-8CV and get a price?","answer":"The 5SY4463-8CV is available to quote against an RFQ through our independent distribution channel. Submit a request for current pricing and availability; lead time and stock levels are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4463-8CV","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/5SY4463-8CV 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}}