{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5208-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5208-7","canonicalUrl":"https://aoctrl.com/siemens/5SY5208-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5208-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 5SY5208-7, C-curve 2-pole, 10 kA per EN 60898, 15 kA per IEC 60947-2 DC, 400 V AC / 440 V DC rated, 2 modular width units.","salesMarkdown":"It's built to IEC / EN 60898-2 and UL1077 standards, so it's equally at home in a European panel or a North American machine that calls for UL-recognized branch protection. The DC rating is 15 kA per IEC 60947-2, which is a step up; you'd see that in battery-bank or UPS circuits where fault current can run higher. The 440 V DC maximum operating voltage means it handles nominal 400 VDC strings without the arc-extinction worries a lower-rated DC breaker would have. Temperature range is -40 to 75 °C. Humidity derating: max 95% RH up to 55 °C, then decreasing to 35% at 75 °C. Installation depth 70 mm, overall depth 76 mm. Dual-listed to IEC/EN 60898-2 and UL1077 — that covers CE marking for European installations and UL recognition for North American machinery. Halogen-free and silicon-free construction is standard for SENTRON; it means no corrosive off-gassing if the breaker arcs, which matters in a sealed panel with sensitive electronics. Degree of pollution 3 and overvoltage category III confirm it's rated for the permanent wet, conductive-dust conditions you find in industrial environments — not just a clean electrical closet.","metaTitle":"Siemens 5SY5208-7 SENTRON MCB, C-Curve 2-Pole, 10/15 kA","metaDescription":"Siemens 5SY5208-7 SENTRON miniature circuit breaker. C-curve, 2-pole, 10 kA (EN 60898) / 15 kA (IEC 60947-2 DC). Current lifecycle stage. 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":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-2, UL1077","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","at AC rated value":"400 V","at DC rated value":"440 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"universal current","Neutral Conductor Switching":"No","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"AC as required, observe DC polarity","Tripping Characteristic Class":"C","at DC according to EN 60898-2":"10 kA","according to EN 60898 rated value":"10 kA","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/DC","at DC according to IEC 60947-2 rated value":"15 kA","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"500 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","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":"0.9 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$41.91","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/63e3db8e883ec9ccaed059cd91d36b2f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=449075&mlfb=5SY5208-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY5208-7/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this brand provide for 5SY5208-7 (RoHS, REACH, UL, IEC)?","answer":"The breaker is certified to IEC/EN 60898-2 and UL1077. It is halogen-free and silicon-free, which aligns with RoHS and REACH substance restrictions. Standard SENTRON documentation includes the declaration of conformity for CE marking and the UL recognition file. Specific compliance certificates are available upon request with an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5208-7","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/5SY5208-7 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}}