{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4263-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4263-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4263-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4263-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4263-7CC miniature circuit breaker, 63 A, 2-pole, C-curve, 10 kA (EN 60898), 5 kA (UL 1077), 50/60 Hz.","salesMarkdown":"## 63 A C-curve MCB for branch-circuit protection That C-curve means it holds through moderate inrush — typical for motor starters, contactor coils, and transformer primaries — and trips fast on a hard short. Rated frequency is 50/60 Hz. This is a current-production part (lifecycle stage: current). ## Temperature derating and mounting Above that, derate: 60.04 A at 40 °C, 58.46 A at 45 °C, 56.89 A at 50 °C, 55.25 A at 55 °C. Mount in any position on DIN rail (quick-assembly system, 2 modular width units). Depth is 76 mm, width 36 mm, height 90 mm, installation depth 70 mm. Rated per EN 60898 (10 kA) and UL 1077 / CSA C22.2 No.235 (5 kA). Halogen-free, silicon-free, sealable terminals top and bottom. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Energy limitation class 3. Suitability noted for mechanical engineering and industry applications.","metaTitle":"Siemens 5SY4263-7CC SENTRON MCB, 63A 2P C-Curve, 10kA","metaDescription":"Siemens 5SY4263-7CC SENTRON miniature circuit breaker, 63 A rated, 2-pole, C-curve, 10 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","title":"5SY4263-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 2-pole, C, 63A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","Type Of Voltage":"AC","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","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","Combined Terminal Top":"Yes","Number Of Poles / Note":"2P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 40 °C / rated value":"60.04 A","at 45 °C / rated value":"58.46 A","at 50 °C / rated value":"56.89 A","at 55 °C / rated value":"55.25 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/508a3cd7e6e03559094622e01c3f0547.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=52378&mlfb=5SY4263-7CC"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY4263-7CC?","answer":"10 kA per EN 60898 at AC; 5 kA per UL 1077 and CSA C22.2 No.235."},{"question":"Where can I buy 5SY4263-7CC?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the temperature derating for 5SY4263-7CC?","answer":"Rated 63 A at 40 °C; derates to 60.04 A at 40 °C, 58.46 A at 45 °C, 56.89 A at 50 °C, and 55.25 A at 55 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4263-7CC","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/5SY4263-7CC 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}}