{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5263-7CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5263-7CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY5263-7CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5263-7CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5263-7CC11, 2-pole miniature circuit breaker, C characteristic, 63 A at 35 °C DC, 10 kA interrupting capacity per IEC 60947-2, for railway applications.","salesMarkdown":"The current rating is temperature-dependent: 63 A at 35 °C, derating to 59.47 A at 40 °C, 57.64 A at 45 °C, 55.76 A at 50 °C, 53.74 A at 55 °C, and 51.72 A at 60 °C. If your panel ambient runs at 50 °C, the breaker's continuous current limit is 55.76 A, not the 63 A on the label. That derating curve is the number to check against your load current, not the 35 °C figure.","metaTitle":"Siemens 5SY5263-7CC11 SENTRON MCB, 2P, C-63 A DC, 10 kA","metaDescription":"Siemens 5SY5263-7CC11 SENTRON miniature circuit breaker, 2-pole, C characteristic, rated 63 A at 35 °C DC, 10 kA interrupting capacity per IEC 60947-2. Current production. Quoted t","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","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","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","at DC / rated value":"440 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"For railway applications","according to EN 61346-2":"F","at 35 °C / rated value":"63 A","at 40 °C / rated value":"59.47 A","at 45 °C / rated value":"57.64 A","at 50 °C / rated value":"55.76 A","at 55 °C / rated value":"53.74 A","at 60 °C / rated value":"51.72 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Railway","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Consider polarity","Product Feature / Touch Protection":"Yes","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage / Of The Operating Voltage":"DC","at DC / according to IEC 60947-2 / rated value":"10 kA","Product Component / Neutral Conductor Switching":"No","operating voltage / at DC / rated value / maximum":"500 V","vibration resistance / according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/79ab2cc8eabaab87038c786f501b4989.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=506260&mlfb=5SY5263-7CC11","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY5263-7CC11/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY5263-7CC11?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5263-7CC11","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/5SY5263-7CC11 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}}