{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6263-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6263-6","canonicalUrl":"https://aoctrl.com/siemens/5SL6263-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6263-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6263-6, 2-pole miniature circuit breaker, B tripping characteristic, 63 A rated current at 30 °C, 6 kA breaking capacity (EN 60898), 400 V AC, width 36 mm (2 MW).","salesMarkdown":"## Integrator's note — 5SL6263-6 The Siemens 5SL6263-6 is a 2-pole miniature circuit breaker from the SENTRON range, B-curve, rated 63 A at 30 °C per EN 60898 and IEC 60947-2. Derate to 59.18 A at 40 °C and 52.93 A at 55 °C if the panel ambient runs warm. ## Panel fit & environment Overvoltage category III, pollution degree 2. Sealable, halogen-free, silicon-free. Mechanical service life typical 10 000 operating cycles.","metaTitle":"Siemens 5SL6263-6 SENTRON MCB, 2P B 63A 6kA","metaDescription":"Siemens 5SL6263-6 SENTRON miniature circuit breaker, 2-pole, B-curve, 63 A, 6 kA breaking capacity per EN 60898. Rated 400 V AC. Available to order; price confirmed on RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","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","at AC / rated value":"63 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Number Of Poles / Note":"2P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"63 A","at 40 °C / rated value":"59.18 A","at 45 °C / rated value":"57.96 A","at 55 °C / rated value":"52.93 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","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","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 (Operating 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=202912&mlfb=5SL6263-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6263-6/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SL6263-6 and get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time."},{"question":"What is the breaking capacity of 5SL6263-6?","answer":"6 kA per both EN 60898 and IEC 60947-2."},{"question":"Will 5SL6263-6 drop into a panel specified around 5SL4120-7CC?","answer":"Both are 2-pole SENTRON MCBs on the same 36 mm footprint, so mechanical fit is identical. The 5SL6263-6 is a B-curve 63 A unit; the 5SL4120-7CC is a different rating and curve — verify the branch circuit requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6263-6","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/5SL6263-6 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}}