{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4208-8CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4208-8CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY4208-8CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4208-8CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4208-8CC11, miniature circuit breaker, 2-pole, D tripping characteristic, 8 A rated at 35 °C, 10 kA breaking capacity acc. to EN 60898, for railway applications.","salesMarkdown":"Rated 8 A at 35 °C ambient, the breaker's thermal element is calibrated to that reference. At 40 °C the continuous rating drops to 7.35 A; at 50 °C it's 6.63 A; at 60 °C it's 5.83 A. If the panel ambient runs warm — common in a sealed railway enclosure — size the load against the derated value at the actual temperature, not the 35 °C headline. The breaker carries a pollution degree 3 rating and overvoltage category III, meaning it's suitable for fixed installations inside building distribution panels or industrial switchgear where transient overvoltages are controlled by upstream SPDs. The product designation per IEC 81346-2 and DIN EN 61346-2 is F — the standard functional code for protective devices. Compliance documentation typically includes CE declaration, RoHS and REACH statements, and the IEC 60898 test certificate. For railway-specific projects, the manufacturer can supply the vibration test report per IEC 60068-2-6 and the temperature-humidity profile per the operating conditions (max 95% RH to 55 °C, derating to 35% RH at 75 °C).","metaTitle":"Siemens 5SY4208-8CC11 SENTRON MCB, 2P D 8A 10kA, 36mm wide","metaDescription":"Siemens 5SY4208-8CC11 SENTRON miniature circuit breaker, 2-pole, D-curve, 8A rated at 35°C, 10kA breaking capacity per EN 60898. Railway-rated, IP20. Sourced to order against RFQ.","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":"5SY4208-8CC11","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 2-pole, D, 8A for railway applications","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","acc. to IEC 81346-2":"F","at AC / rated value":"8 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"For railway applications","acc. to DIN EN 61346-2":"F","at 35 °C / rated value":"8 A","at 40 °C / rated value":"7.35 A","at 45 °C / rated value":"7 A","at 50 °C / rated value":"6.63 A","at 55 °C / rated value":"6.25 A","at 60 °C / rated value":"5.83 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"D","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"Any","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":"AC","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Component / 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/0f26cc66b78c9647f85adb278b082b05.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=495093&mlfb=5SY4208-8CC11"},"ai":{"faq":[{"question":"Where can I buy 5SY4208-8CC11 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 5SY4208-8CC11 drop into a panel specified around 5SY7210-7CC without rewiring?","answer":"The 5SY4208-8CC11 is a 2-pole D-curve 8A breaker with 10 kA breaking capacity per EN 60898. The 5SY7210-7CC is a 2-pole C-curve 10A breaker with a higher breaking capacity (typically 25 kA). Both share the same 36 mm width and DIN-rail mounting, so they are mechanically interchangeable. However, the trip curve and rating differ — verify the circuit's load and fault level before substitution."},{"question":"What compliance documentation does Siemens provide for 5SY4208-8CC11?","answer":"Standard documentation includes CE declaration of conformity, RoHS and REACH compliance statements, and the IEC 60898 test certificate. For railway applications, the vibration test report per IEC 60068-2-6 and the temperature-humidity profile are available from the manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4208-8CC11","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/5SY4208-8CC11 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}}