{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6463-7BB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6463-7BB","canonicalUrl":"https://aoctrl.com/siemens/5SL6463-7BB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6463-7BB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6463-7BB, miniature circuit breaker, 4-pole, C characteristic, 63 A, 400 V AC, 6 kA breaking capacity, 4 MW units.","salesMarkdown":"The Siemens 5SL6463-7BB is a SENTRON miniature circuit breaker (MCB) — a 4-pole, C-curve 63 A device rated for 400 V AC with a 6 kA breaking capacity under both EN 60898 and IEC 60947-2. This 4-pole breaker occupies 4 modular-width units (72 mm wide) on a DIN rail. Mounting position is unrestricted — horizontal, vertical, or flat — which helps when laying out a crowded enclosure. ## Electrical ratings and thermal behaviour For DC applications, the maximum rated voltage is 72 V. The closest peer in the SENTRON family is the 5SL4363-7 — a 3-pole C-63 A breaker with a 10 kA breaking capacity (versus 6 kA on the 4-pole 5SL6463-7BB). The 3-pole unit is 54 mm wide (3 MW) and shares the same 76 mm depth and 90 mm height. If your panel was designed around the 5SL4363-7 and you need four poles, the 5SL6463-7BB will not drop in without rewiring: the 4-pole version is 18 mm wider and requires a separate neutral conductor path. The 10 kA vs 6 kA difference also matters if your available fault current exceeds 6 kA at the panel.","metaTitle":"Siemens 5SL6463-7BB SENTRON MCB, 4P C-63A, 6kA","metaDescription":"Siemens 5SL6463-7BB SENTRON miniature circuit breaker, 4-pole C-curve 63 A, 400 V AC, 6 kA breaking capacity per EN 60898/IEC 60947-2. Current lifecycle. Quoted to order.","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":"5SL6463-7BB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 4-pole C, 63 A Version Italy","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","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":"III","Energy Limitation Class":"3","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"6 kA","Type Of Voltage Of The Operating Voltage":"AC","with multi-phase operation at AC maximum":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 V","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":"4.1 W"}},"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=60292&mlfb=5SL6463-7BB"},"ai":{"faq":[{"question":"Where can I buy the 5SL6463-7BB and what is the price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Will the 5SL6463-7BB drop into a panel designed for the 5SL4363-7?","answer":"No — the 5SL6463-7BB is 4-pole (72 mm wide) versus the 3-pole 5SL4363-7 (54 mm wide). It requires one additional modular width and a separate neutral conductor path. The 5SL6463-7BB also has a lower breaking capacity (6 kA vs 10 kA)."},{"question":"What is the breaking capacity of the 5SL6463-7BB?","answer":"6 kA per both EN 60898 and IEC 60947-2 at 400 V AC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6463-7BB","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/5SL6463-7BB 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}}