{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4663-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4663-7","canonicalUrl":"https://aoctrl.com/siemens/5SL4663-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4663-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4663-7, miniature circuit breaker, 3P+N, 63 A, C-curve, 400 V AC, 10 kA breaking capacity, 4 MWU.","salesMarkdown":"The Siemens SENTRON 5SL4663-7 is a 4-pole (3P+N) miniature circuit breaker rated 63 A with a C-curve trip characteristic, designed for 400 V AC multi-phase circuits and delivering 10 kA breaking capacity per both EN 60898 and IEC 60947-2. At 63 A and 4 modular width units (72 mm wide), this is the high-current end of the 5SL6 family; it occupies four 18 mm DIN-rail slots. The 10 kA breaking capacity is the same under both EN 60898 (household standard) and IEC 60947-2 (industrial standard), so this breaker qualifies for either classification without derating. The 400 V AC rated voltage with a 440 V AC maximum on multi-phase operation means it handles standard 230/400 V three-phase networks cleanly, with headroom for nominal line swell. DC rated at 72 V maximum — usable for DC distribution only at low voltage, not for 125 V DC battery banks. Snap-on DIN rail mounting, any position. The 72 mm width (4 MWU) is the same footprint as four single-pole breakers ganged; verify your enclosure's gland-plate knockout pattern if you're swapping from a 3-pole unit. Sealable (padlockable toggle) for lockout/tagout compliance.","metaTitle":"Siemens 5SL4663-7 SENTRON MCB, 63 A C-Curve, 3P+N, 10 kA","metaDescription":"Siemens SENTRON 5SL4663-7 miniature circuit breaker, 63 A, C-curve, 3P+N, 400 V AC, 10 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":"5SL4663-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 3+N-pole, C, 63 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P+N","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":"10 kA","according to IEC 60947-2 rated value":"10 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":"5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f03bb4e48b5da1cc8cbb86aba555a30a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=149061&mlfb=5SL4663-7"},"ai":{"faq":[{"question":"Will 5SL4663-7 drop into a panel that was specified around 5SL4363-7 without rewiring?","answer":"The 5SL4663-7 (3P+N, 72 mm wide) is one modular width unit wider than the 5SL4363-7 (3P, 54 mm wide). It mounts on the same DIN rail but occupies four slots instead of three. Verify your enclosure's fill factor and busbar alignment — the neutral pole adds a terminal that the 3-pole version lacks, so the downstream wiring changes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4663-7","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/5SL4663-7 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}}