{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5108-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5108-6","canonicalUrl":"https://aoctrl.com/siemens/5SY5108-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5108-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5108-6, 1-pole miniature circuit breaker, B-curve, 8 A rated at 35 °C, 10 kA breaking capacity per IEC 60898, 2 MW wide, depth 76 mm.","salesMarkdown":"The Siemens SENTRON 5SY5108-6 is a 1-pole miniature circuit breaker with a B tripping characteristic, rated 8 A at 35 °C and breaking 10 kA per IEC 60898. At 40 °C the breaker derates to 7.62 A, at 50 °C to 7.22 A, and at 60 °C to 6.78 A; if the panel ambient runs hot, factor the thermal derating into the branch-circuit design. The 10 kA breaking capacity at 230/400 V AC (per IEC 60898) and 10 kA at 220 V DC (per EN 60898-2) means it can safely clear a fault up to that level without upstream damage. ## Mounting and integration notes Snap-on DIN rail mounting, any orientation. The sealable design allows lockout/tagout. Halogen-free and silicon-free construction meets clean-room and high-reliability plant specs. IP20 with connected conductors — keep the panel enclosure closed during washdown.","metaTitle":"Siemens 5SY5108-6 SENTRON MCB, 1P B-Curve 8 A, 10 kA","metaDescription":"Siemens 5SY5108-6 SENTRON miniature circuit breaker, 1-pole, B-curve, 8 A rated at 35 °C, 10 kA breaking capacity per IEC 60898. Active production, sourced and quoted to order. Dep","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY5108-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"MCB 440V DC 400V AC 10kA, 1-pole, B, 8A T=70mm","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":"8 A","at DC / rated value":"220 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 35 °C / rated value":"8 A","at 40 °C / rated value":"7.62 A","at 45 °C / rated value":"7.42 A","at 50 °C / rated value":"7.22 A","at 55 °C / rated value":"7 A","at 60 °C / rated value":"6.78 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"universal current","at DC / acc. to EN 60898-2":"10 kA","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","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","at DC / acc. to IEC 60947-2 / rated value":"15 kA","Type Of Voltage / Of The Operating Voltage":"AC/DC","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":"250 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/9fd727d2ed3271a9c0f8742faa09e031.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1385696&mlfb=5SY5108-6"},"ai":{"faq":[{"question":"Where can I buy 5SY5108-6 and how is it quoted?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 5SY5108-6?","answer":"The depth is 76 mm, with an installation depth of 70 mm."},{"question":"What is the width of 5SY5108-6?","answer":"The width is 36 mm, which corresponds to 2 modular width units."},{"question":"What compliance documentation is available for 5SY5108-6?","answer":"The breaker carries IEC 60898 and EN 60898-2 ratings, pollution degree 3, overvoltage category III, and is halogen-free and silicon-free. Specific RoHS/REACH/UL declarations are provided with the product documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5108-6","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/5SY5108-6 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}}