{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5208-7CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5208-7CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY5208-7CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5208-7CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5208-7CC11 miniature circuit breaker, 2-pole, C-curve 8 A, rated DC 440 V (max 500 V), 10 kA interrupting capacity per IEC 60947-2, designed for railway applications.","salesMarkdown":"The Siemens SENTRON 5SY5208-7CC11 is a 2-pole miniature circuit breaker with a C-tripping characteristic rated at 8 A, built for universal current operation on DC circuits up to 440 V (500 V max). It carries a 10 kA interrupting capacity per IEC 60947-2 at DC — enough to clear a hard fault on a 440 VDC bus without upstream coordination worries. The part is explicitly designed for railway applications, which means it has passed vibration and temperature cycling beyond standard industrial MCBs. ## Railway-rated DC protection — what that means on the panel The 2-pole design switches both lines in a DC circuit; polarity must be observed on the supply connection — the breaker is not polarity-agnostic.","metaTitle":"Siemens 5SY5208-7CC11 SENTRON MCB, 2P C 8A DC 440 V, Railway","metaDescription":"Siemens SENTRON 5SY5208-7CC11 miniature circuit breaker, 2-pole C-curve 8 A, rated DC 440 V, 10 kA IEC 60947-2, for railway applications. Sourced 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","Solid":"0.75 ... 35 mm²","Width":"36 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"DC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +70 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at DC / rated value":"440 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Design of the product":"For railway applications","Number of width units":"2","Number of poles / Note":"2P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","Tripping characteristic class":"C","at DC / rated value / maximum":"500 V","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","at DC / acc. to IEC 60947-2 / rated value":"10 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"No","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=534791&mlfb=5SY5208-7CC11","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY5208-7CC11/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY5208-7CC11 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing will be confirmed at that time."},{"question":"Will 5SY5208-7CC11 drop into a panel specified for 5SY5240-7?","answer":"The physical footprint is identical — same 36 mm width, 76 mm depth, 90 mm height, and quick-assembly DIN-rail mounting. No rewiring needed for the enclosure fit, but the current rating difference (8 A vs 40 A) means the branch circuit protection must be re-evaluated."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5208-7CC11","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/5SY5208-7CC11 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}}