{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8102-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8102-8","canonicalUrl":"https://aoctrl.com/siemens/5SY8102-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8102-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8102-8, miniature circuit breaker, 1-pole, D characteristic, 2 A rated current, 70 kA breaking capacity per IEC 60947-2, 1 MWU width.","salesMarkdown":"At 15 kA DC per the same standard, it also handles DC bus faults in drives or rectifier sections. ## Fit and integration into a panel Width is 18 mm — one modular unit on a DIN rail. Fastening is via the quick-assembly system, which clips onto the rail without tools. ## Temperature derating and ambient conditions Rated 2 A at 45 °C, derates to 1.95 A at 50 °C, and 1.9 A at 55 °C. Ambient range is -40 °C to 75 °C, with humidity influence capped at 95% up to 55 °C, 55% up to 70 °C, and 35% up to 75 °C. If your panel runs hot near a drive or transformer, use the 55 °C figure — 1.9 A — as the continuous limit, not the catalog 2 A. Vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz. ## Approvals and compliance documentation Rated breaking capacity of 5 kA per UL 1077 and CSA C22.2 No. 235 for North American acceptance. Halogen-free and silicon-free construction — important for clean-room or semiconductor fab environments where outgassing contaminates optics or wafers. Sealable terminals allow tamper-proofing after commissioning. Touch protection is integrated. The product designation per IEC 81346-2 and DIN EN 61346-2 is F (protective device).","metaTitle":"Siemens SENTRON 5SY8102-8 MCB, D Curve, 2 A, 1P, 70 kA","metaDescription":"Siemens SENTRON 5SY8102-8 miniature circuit breaker, 1-pole, D tripping characteristic, 2 A rated, 70 kA breaking capacity per IEC 60947-2. Active production, sourced to order. Req","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SY8102-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 230/400 V D=70 mm 25 kA according to EN 60947-2, 1P, D2","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","Number Of Poles":"1","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":"2 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","acc. to DIN EN 61346-2":"F","at 45 °C / rated value":"2 A","at 50 °C / rated value":"1.95 A","at 55 °C / rated value":"1.9 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"1","Tripping Characteristic Class":"D","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"70 kA","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":"15 kA","Type Of Voltage / Of The Operating Voltage":"AC","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","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/2f9febba593e56e973d71197fb1f3c33.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=84840&mlfb=5SY8102-8"},"ai":{"faq":[{"question":"Where can I buy 5SY8102-8 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — request a quote for the firm date."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY8102-8","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/5SY8102-8 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}}