{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4663-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4663-6","canonicalUrl":"https://aoctrl.com/siemens/5SL4663-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4663-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4663-6 miniature circuit breaker, 3P+N, B-curve, 63 A, 400 V AC, 10 kA breaking capacity per IEC 60898 and IEC 60947-2.","salesMarkdown":"The Siemens 5SL4663-6 is a SENTRON miniature circuit breaker (MCB) rated 63 A with a B tripping characteristic, 3P+N poles, and a 400 V AC supply voltage. It interrupts fault currents up to 10 kA per both EN 60898 and IEC 60947-2 — that is the SCCR the breaker can clear without welding or failing, which governs its use in residential and infrastructure panels where the prospective fault current stays under that threshold. The B-curve trips between 3 and 5 times rated current (189–315 A for this 63 A unit), making it a fit for resistive or lightly inductive loads where inrush is low — lighting, heating, general socket circuits. The 3P+N pole configuration switches all three phases and the neutral, with the neutral pole switching but not protecting; the 4-module width (72 mm) occupies four DIN-rail positions. Depth of 76 mm and installation depth of 70 mm clear standard 80 mm-deep enclosures, and the IP20 rating (with connected conductors) is typical for enclosed distribution boards. The 10 kA breaking capacity at 400 V AC is the same under both EN 60898 (domestic standard) and IEC 60947-2 (industrial standard), so the part carries a single rating that satisfies both code families — no derating needed when the installation is governed by one versus the other. Mounts in any position on standard DIN rail. Supplementary devices (shunt trips, auxiliary contacts, alarm switches) can be snapped onto the right side without increasing the pole width. Halogen-free and silicon-free construction meets the material restrictions common in rail, marine, and clean-room specifications.","metaTitle":"Siemens 5SL4663-6 SENTRON MCB, 63 A, B-Curve, 3P+N, 10 kA","metaDescription":"Siemens 5SL4663-6 SENTRON miniature circuit breaker, 63 A, B characteristic, 3P+N, 400 V AC, 10 kA breaking capacity per IEC 60898 and IEC 60947-2. Active production, sourced to or","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":"5SL4663-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 3+N-pole, B, 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":"B","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=243000&mlfb=5SL4663-6"},"ai":{"faq":[{"question":"Where can I buy 5SL4663-6 and how is it quoted?","answer":"The 5SL4663-6 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"Will 5SL4663-6 drop into a panel specified around 5SL4363-7 without rewiring?","answer":"No — the 5SL4363-7 is a 3-pole (3P) C-curve 63 A unit, while the 5SL4663-6 is a 3P+N B-curve unit. The 5SL4663-6 is 72 mm wide (4 module widths) versus 54 mm (3 module widths) for the 5SL4363-7, so it occupies one extra DIN-rail slot. The neutral pole requires a separate incoming neutral conductor, so the panel wiring and busbar arrangement differ."},{"question":"What compliance documentation does Siemens provide for 5SL4663-6?","answer":"The 5SL4663-6 carries ratings per EN 60898 and IEC 60947-2, with overvoltage category III and pollution degree 2. It is halogen-free and silicon-free. Standard Siemens declarations of conformity (CE, UKCA) and material compliance (RoHS, REACH) are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4663-6","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/5SL4663-6 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}}