{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6663-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6663-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SL6663-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6663-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6663-7CC miniature circuit breaker, 63 A, C-curve, 3P+N, 400 V AC, 6 kA per EN 60898, 4 MW units.","salesMarkdown":"The Siemens 5SL6663-7CC is a SENTRON miniature circuit breaker rated 63 A with a C-curve tripping characteristic, in a 3P+N (4-pole) configuration. It is designed for 400 V AC systems and carries a 6 kA breaking capacity according to EN 60898 — the standard that governs overcurrent protection in residential and commercial final circuits. This breaker occupies 4 modular width units (72 mm) on a DIN rail, with a depth of 76 mm and height of 90 mm. The installation depth behind the panel is 70 mm. The 6 kA breaking capacity at 400 V AC per EN 60898 is the standard rating for this class — it safely interrupts fault currents up to that level in a residential or light-commercial distribution board. The C-curve is the most common choice for general-purpose circuits feeding socket outlets, lighting, and small motor loads.","metaTitle":"Siemens 5SL6663-7CC SENTRON MCB, 63A C-curve 3P+N 6kA","metaDescription":"Siemens 5SL6663-7CC SENTRON miniature circuit breaker, 63A, C-curve, 3P+N, 400V AC, 6kA breaking capacity per EN 60898. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","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":"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","vibration resistance according to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/02aad1605277fe8d04875233685c53c5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=496213&mlfb=5SL6663-7CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6663-7CC/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SL6663-7CC?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution; current pricing and availability are confirmed at quote time."},{"question":"Will 5SL6663-7CC drop into a panel that was specified around 5SL4363-7 without rewiring?","answer":"No — the 5SL6663-7CC is 4-pole (3P+N) and occupies 4 MW units (72 mm wide), while the 5SL4363-7 is 3-pole (3P) at 3 MW units (54 mm wide). The 5SL4363-7 also carries a 10 kA breaking capacity per EN 60898 versus 6 kA on this part. They share the same depth (76 mm) and height (90 mm), so the panel cut-out and DIN rail position are compatible, but the wider footprint and neutral pole require a different busbar arrangement and more rail space."},{"question":"What compliance documentation does this brand provide for 5SL6663-7CC?","answer":"As a SENTRON product from Siemens, the 5SL6663-7CC is designed to meet EN 60898, IEC 60947-2, and relevant EU directives (CE). The housing is halogen-free and silicon-free. Specific RoHS and REACH declarations are available from Siemens documentation. The part carries an overvoltage category III rating and pollution degree 2, suitable for fixed-installation distribution boards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6663-7CC","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/5SL6663-7CC 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}}