{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6463-6RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6463-6RC","canonicalUrl":"https://aoctrl.com/siemens/5SL6463-6RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6463-6RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6 series, 5SL6463-6RC miniature circuit breaker, 63 A, 4-pole, B characteristic, 7.5 kA breaking capacity, 415 V AC.","salesMarkdown":"The Siemens 5SL6463-6RC is a SENTRON 5SL6 miniature circuit breaker rated 63 A with B tripping characteristic, 4 poles, and a 7.5 kA breaking capacity per EN 60898. It's designed for residential and infrastructure branch-circuit protection on 415 V AC three-phase systems. The B characteristic means magnetic trip occurs at 3–5× In (189–315 A), so it won't nuisance-trip on moderate motor starts but will clear a hard short fast. Four poles let you switch all three phases plus neutral in a single unit, though the neutral conductor is not switched internally — it's a 4-pole breaker with solid-neutral switching. The 415 V AC rated supply voltage matches standard three-phase European distribution; single-phase operation is rated at 250 V AC per pole. Maximum voltage in multi-phase operation is 440 V AC, giving a bit of headroom on a nominal 400 V system. For the panel builder, the 72 mm width (4 width units at 18 mm each) and 76 mm depth mean it occupies standard DIN-rail space; the 70 mm installation depth accounts for the busbar and wiring behind the rail. Mounting position is any, so vertical or horizontal panel layouts work. ## Where it goes in the panel","metaTitle":"Siemens 5SL6463-6RC SENTRON MCB, 63 A 4P B-Char 7.5 kA","metaDescription":"Siemens SENTRON 5SL6463-6RC miniature circuit breaker, 63 A, 4-pole, B characteristic, 7.5 kA breaking capacity per EN 60898. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SL6463-6RC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50 Hz","description":"MCB 63 A 4-pole B characteristic 7.5 kA","Halogen-Free":"Yes","Silicon-Free":"Yes","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":"2","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"5SL miniature circuit breakers","Number of width units":"4","Number of poles / Note":"4P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SL6","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"63 A","Tripping characteristic class":"B","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"7.5 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"415 V","with multi-phase operation / at AC / maximum":"440 V","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"250 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3b57e28b16ea199b053ea494d6244378.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=185515&mlfb=5SL6463-6RC"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL6463-6RC?","answer":"7.5 kA rated value per EN 60898. That's the maximum prospective fault current it can safely interrupt at rated voltage."},{"question":"What does the B characteristic mean on this MCB?","answer":"The B curve trips magnetically at 3 to 5 times the rated current (189–315 A for the 63 A version). It's suited for resistive and general-purpose loads with low inrush — lighting, heaters, distribution subfeeds — rather than motor circuits that draw higher starting current."},{"question":"Where can I buy the 5SL6463-6RC and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead-time estimate."},{"question":"Will the 5SL6463-6RC drop into a panel designed for the 5SL6132-6MB?","answer":"Both are 4-pole SENTRON 5SL6 breakers with the same 72 mm width (4 width units) and 76 mm depth, so the physical footprint is identical. The difference is rating: the 5SL6463-6RC is 63 A B-curve, while the 5SL6132-6MB is a different current/curve variant. No rewiring for fit, but verify the branch-circuit ampacity and coordination study supports the higher 63 A rating."},{"question":"What compliance documentation does Siemens provide for this MCB?","answer":"The 5SL6463-6RC carries EN 60898 certification for the 7.5 kA breaking capacity. It's designed for pollution degree 2 and overvoltage category III per IEC standards. For RoHS, REACH, and specific UL/CSA documentation, request the manufacturer's declaration of conformity — these are typically provided with the shipment or on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6463-6RC","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/5SL6463-6RC 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}}