{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6263-7BB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6263-7BB","canonicalUrl":"https://aoctrl.com/siemens/5SL6263-7BB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6263-7BB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6 series, 2-pole miniature circuit breaker, C characteristic, 63 A rated current, 400 V AC, 6 kA breaking capacity (EN 60898), 2 modular width units, IP20.","salesMarkdown":"## Panel fit and protection profile At 63 A, this breaker feeds a sub-distribution board or a high-current fixed load. The 6 kA breaking capacity under EN 60898 is the domestic/residential rating; the same 6 kA under IEC 60947-2 confirms it also meets the industrial standard for the same fault level, giving you dual-certification coverage. That 440 V ceiling allows use on 400/415 V three-phase systems where the line-to-line voltage stays under the maximum. For DC applications the breaker is rated at 72 V maximum — not a primary DC device, but usable on low-voltage DC control circuits within that limit.","metaTitle":"Siemens SENTRON 5SL6263-7BB MCB, 2-pole C-curve 63 A 400 V","metaDescription":"Siemens SENTRON 5SL6263-7BB miniature circuit breaker, 2-pole, C characteristic, 63 A, 400 V AC, 6 kA breaking capacity per EN 60898. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","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","acc. to IEC 81346-2":"F","protection class IP":"IP20, with connected conductors","Overvoltage Category":"3","Design Of The Product":"5SL miniature circuit breakers","Number Of Poles / Note":"2P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","circuit-breaker / Design":"5SL6","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","acc. to IEC 60947-2 / rated value":"6 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","Influence Of The Surrounding Temperature":"Periodically +55°C, max. 95% humidity","operational current / at AC / rated value":"63 A","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","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/98efd983b456e516b352285b8b77313d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=58921&mlfb=5SL6263-7BB","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6263-7BB/alternatives.json"},"ai":{"faq":[{"question":"Will 5SL6263-7BB drop into a panel specified around 5SL3640-7MB without rewiring?","answer":"Both are 2-pole SENTRON 5SL6 breakers on the same DIN-rail footprint, so the mechanical fit is identical. The difference is rating: the 5SL3640-7MB is a 40 A B-curve device; the 5SL6263-7BB is a 63 A C-curve. If the panel bus and downstream conductors are sized for 63 A and the coordination study allows a C-curve, it is a direct swap. If the original design assumed B-curve selectivity, verify coordination before substituting."},{"question":"Where can I buy 5SL6263-7BB and what is the lead time?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead-time commitment."},{"question":"What compliance documentation does Siemens provide for 5SL6263-7BB?","answer":"The breaker is certified to EN 60898 and IEC 60947-2, covering the essential safety and performance standards for European and international installations. The construction is halogen-free and silicon-free, which supports environmental compliance requirements in controlled environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6263-7BB","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/5SL6263-7BB 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}}