{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6463-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6463-8","canonicalUrl":"https://aoctrl.com/siemens/5SY6463-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6463-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6 series, Miniature circuit breaker, 5SY6463-8, 4-pole, 63 A, D tripping characteristic, 400 V AC, 10 kA IEC 60947-2.","salesMarkdown":"The Siemens 5SY6463-8 is a SENTRON miniature circuit breaker (MCB) with a D tripping characteristic, rated 63 A at 400 V AC across 4 poles. Breaking capacity is 10 kA per IEC 60947-2, with a secondary 6 kA rating per EN 60898 for residential or light commercial coordination. DC rating is 15 kA at 72 V per IEC 60947-2, so it also handles DC-side faults on rectified supplies or battery banks. Occupies 4 width units (72 mm) on the rail, with a depth of 76 mm and installation depth of 70 mm behind the panel face. Halogen-free and silicon-free construction suits environments where outgassing or contamination is a concern — clean rooms, medical equipment, or sealed enclosures near sensitive electronics. Operating temperature range spans -40 °C to 75 °C, with humidity derating above 55 °C. Overvoltage category III (distribution-level) per IEC 60947-2. UL 1077 and CSA C22.2 No. 235 recognized at 5 kA for North American supplementary protection applications.","metaTitle":"Siemens 5SY6463-8 SENTRON MCB, 63A D Curve, 4-Pole, 10kA IEC","metaDescription":"Siemens 5SY6463-8 SENTRON miniature circuit breaker, 63 A, D tripping characteristic, 4-pole, 400 V AC, 10 kA IEC 60947-2. Available to order against RFQ.","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","Sealable":"Yes","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","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","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","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY6","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"63 A","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"10 kA","Product feature / Touch protection":"Yes","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at DC / acc. to IEC 60947-2 / rated value":"15 kA","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":"$180.02","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=55090&mlfb=5SY6463-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY6463-8/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY6463-8?","answer":"10 kA per IEC 60947-2 at 400 V AC, with a secondary rating of 6 kA per EN 60898. For DC circuits it is rated 15 kA at 72 V per IEC 60947-2. For UL/CSA applications it carries a 5 kA rating per UL 1077 and CSA C22.2 No. 235."},{"question":"What does the D tripping characteristic mean for this breaker?","answer":"The D curve trips magnetically between 10× and 20× rated current (630 A to 1260 A for this 63 A unit). This delay allows high inrush from motor starting, transformer energization, or capacitor banks without nuisance tripping, while still providing short-circuit protection."},{"question":"Where can I buy 5SY6463-8?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your required quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6463-8","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/5SY6463-8 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}}