{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4463-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4463-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4463-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4463-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4463-8CC, 4-pole miniature circuit breaker, D tripping characteristic, 63 A rated current, 10 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"It breaks 10 kA per EN 60898 and carries a 5 kA SCCR under UL 1077 and CSA C22.2 No. 235 — enough for most industrial panel secondary circuits but check coordination if your transformer exceeds that fault level. ## D-curve and application fit At 63 A it handles a 3-phase motor up to roughly 30 kW DOL before you need to check the starting current against the magnetic threshold. IP20 with connected conductors — fine inside a panel, not for wet locations. Ambient range -40 to 75 °C; above 55 °C the current derating follows the curve in the spec table — at 70 °C expect roughly 55% of rated current. ## Dimensions and wiring 72 mm wide (4 width units), 90 mm tall, 76 mm deep with 70 mm installation depth. Neutral conductor is not switched — this is a 4P breaker with switched poles only.","metaTitle":"Siemens 5SY4463-8CC SENTRON MCB, 4P D 63A 10kA","metaDescription":"Siemens SENTRON 5SY4463-8CC miniature circuit breaker, 4-pole, D-curve, 63 A, 10 kA IEC breaking capacity. Active production. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Rated Value":"50/60 Hz","Mounting type":"Quick assembly system","Number Of Poles":"4","Type Of Voltage":"AC","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree of pollution":"3","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage Category":"III","Combined Terminal Top":"Yes","Number Of Width Units":"4","Number of poles / Note":"4P","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY4CC","Suitability for operation":"Mechanical engineering / industry","Product feature / sealable":"Yes","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","Product Feature / Halogen-Free":"Yes","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"10 kA","Position / of power supply cord":"Any","Product feature / Touch protection":"Yes","Operating current / at AC / rated value":"63 A","Reference code / acc. to DIN EN 81346-2":"F","reference code / acc. to DIN EN 61346-2":"F","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"440 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0127ed63b5b3dd89ed47ff05ca2fd166.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=242126&mlfb=5SY4463-8CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4463-8CC/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY4463-8CC?","answer":"10 kA per EN 60898 at 400 V AC, and 5 kA per UL 1077 and CSA C22.2 No. 235."},{"question":"What is the D-curve on this MCB used for?","answer":"The D tripping characteristic (10–20× In) is designed for high-inrush loads like motor starters, transformers, and solenoid banks where a B or C curve would nuisance-trip on startup."},{"question":"Where can I buy 5SY4463-8CC?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for 5SY4463-8CC?","answer":"The MCB carries EN 60898 and UL 1077 / CSA C22.2 No. 235 certifications. It is halogen-free and silicon-free, suitable for mechanical engineering and industry applications per the manufacturer's specification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4463-8CC","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/5SY4463-8CC 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}}