{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4263-7RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4263-7RC","canonicalUrl":"https://aoctrl.com/siemens/5SL4263-7RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4263-7RC","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON miniature circuit breaker, 5SL4263-7RC, 2-pole, C-curve, 63 A, 10 kA at 415 V AC, 1 MW width.","salesMarkdown":"The SENTRON 5SL4263-7RC is a 2-pole miniature circuit breaker with a C tripping characteristic, rated 63 A at 415 V AC and a breaking capacity of 10 kA per EN 60898. It occupies a single modular width (18 mm) on the DIN rail, so it fits tight panel layouts without crowding adjacent breakers. At 63 A it handles a substantial feeder or submain, not just a final subcircuit. Power loss per pole runs 5.4 W at rated current in the hot state — a figure to check for thermal buildup inside a densely packed enclosure, especially when multiple breakers are ganged. Depth is 76 mm (70 mm behind the panel), width 18 mm (1 MW), height 90 mm. Halogen-free and silicon-free construction reduces toxic smoke and silicone contamination in sensitive environments. ## Electrical Ratings & Compliance Rated for AC only, 50/60 Hz, with a maximum operating voltage of 440 V in multi-phase operation and 250 V single-phase. The DC rating is limited to 72 V maximum — not a general-purpose DC breaker above that level.","metaTitle":"SENTRON 5SL4263-7RC MCB, 2P C 63 A, 10 kA, 415 V AC","metaDescription":"SENTRON 5SL4263-7RC miniature circuit breaker, 2-pole, C-curve, 63 A, 10 kA breaking capacity at 415 V AC. Active production. Sourced to order against 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":"18 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"63 A","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","at 30 °C rated value":"63 A","Energy Limitation Class":"3","according to EN 61346-2":"F","according to IEC 81346-2":"F","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","supply voltage at AC rated value":"415 V","according to EN 60898 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","with single-phase operation at AC rated value":"250 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":"5.4 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/69e2b11521f3800911eef4d09f2a0d3b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=130295&mlfb=5SL4263-7RC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL4263-7RC/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SL4263-7RC and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through our independent distribution channel. Submit an RFQ to confirm current availability and pricing."},{"question":"What is 5SL4263-7RC's listed depth and width?","answer":"Depth is 76 mm (70 mm behind the panel), width is 18 mm (one modular unit)."},{"question":"Will 5SL4263-7RC drop into a panel specified around 5SL4363-7 without rewiring?","answer":"Both are 2-pole, 63 A, C-curve MCBs with the same 18 mm width and DIN-rail mounting, so they share the same footprint and basic ratings. However, the 5SL4363-7 carries a higher breaking capacity (25 kA per EN 60898) and a 440 V rated voltage; verify that the 10 kA / 415 V rating of the 5SL4263-7RC meets your panel's fault-current and voltage requirements before substituting."},{"question":"What compliance documentation does SENTRON provide for 5SL4263-7RC?","answer":"The manufacturer provides standard documentation including a datasheet, CE declaration of conformity, and environmental compliance (RoHS, REACH). Specific UL or IEC certificates should be verified at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4263-7RC","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/5SL4263-7RC 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}}