{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7208-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7208-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7208-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7208-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7208-7, 2-pole miniature circuit breaker, C-curve, 8 A rated, 15 kA per EN 60898, 30 kA per IEC 60947-2, 2 MW width, IP20.","salesMarkdown":"## Siemens SENTRON 5SY7208-7 — 2-pole C-curve MCB, 8 A, 15/30 kA ## Temperature derating and ambient limits The 8 A rating holds at 35 °C. Above that, derate linearly: 7.51 A at 40 °C, 7.26 A at 45 °C, 6.99 A at 50 °C, 6.72 A at 55 °C, and 6.43 A at 60 °C. Humidity must be managed: max 95% RH up to 55 °C, dropping to 35% RH at 75 °C. Mounting position is unrestricted — vertical, horizontal, or inverted — which simplifies layout in crowded enclosures. Sealable design allows lockout/tagout for maintenance isolation. Dual-rated to IEC/EN 60898-1 (15 kA) and IEC/EN 60947-2 / UL 1077 (30 kA). The UL 1077 listing means it qualifies as a supplementary protector in North American panels, not a branch-circuit rated device — important for UL 508A industrial control panels. Halogen-free and silicon-free construction. Energy limitation class 3. Designation per EN 61346-2 and IEC 81346-2 is F.","metaTitle":"Siemens 5SY7208-7 SENTRON MCB, 2P C-Curve 8A, 15kA IEC 60898","metaDescription":"Siemens SENTRON 5SY7208-7 miniature circuit breaker, 2-pole, C-curve, 8A rated, 15kA (EN 60898) / 30kA (IEC 60947-2). Current production. Quoted to order.","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","title":"5SY7208-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V 15kA, 2-pole, C, 8A, D=70 mm","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":"8 A","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","at 35 °C rated value":"8 A","at 40 °C rated value":"7.51 A","at 45 °C rated value":"7.26 A","at 50 °C rated value":"6.99 A","at 55 °C rated value":"6.72 A","at 60 °C rated value":"6.43 A","Energy Limitation Class":"3","according to EN 61346-2":"F","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"15 kA","according to IEC 60947-2 rated value":"30 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","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":"72 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Switching Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","supply voltage with single-phase operation at AC rated value":"230 V","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ef2f66e8b411f2087eceba024f9d66c5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=81471&mlfb=5SY7208-7"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SY7208-7?","answer":"15 kA per EN 60898-1 and 30 kA per IEC 60947-2 / UL 1077. The higher figure applies under the industrial standard, giving headroom for high-fault panels."},{"question":"Will the 5SY7208-7 drop into a panel specified for 5SY7206-7CC without rewiring?","answer":"Both are 2-pole C-curve MCBs in the SENTRON 5SY7 family with the same 2 MW width and DIN-rail mount, so the physical swap is straightforward. The 5SY7208-7 is rated 8 A versus the 6 A of the 5SY7206-7CC — verify the load current before substituting."},{"question":"What compliance documentation does Siemens provide for the 5SY7208-7?","answer":"The breaker is certified to IEC/EN 60898-1 and IEC/EN 60947-2 / UL 1077. It is halogen-free and silicon-free. Standard Siemens declaration of conformity and UL recognition documentation are available on request."},{"question":"Where can I buy the 5SY7208-7 and how is it quoted?","answer":"Sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7208-7","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/5SY7208-7 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}}