{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6108-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6108-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6108-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6108-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6108-8CC, 1-pole miniature circuit breaker, D tripping characteristic, 8 A rated at AC, 6 kA breaking capacity per EN 60898, 18 mm wide.","salesMarkdown":"The Siemens 5SY6108-8CC is a SENTRON miniature circuit breaker, 1-pole, with a D tripping characteristic rated 8 A at AC. Its 6 kA breaking capacity per EN 60898 covers most industrial branch-circuit fault levels; the UL 1077 listing at 5 kA extends its reach into North American panels. The D curve means it tolerates the high inrush of motor or transformer loads without nuisance tripping — sized for a 3-phase motor starting current that would trip a C-curve on the same 8 A frame. ## Derating and ambient conditions The 8 A rating holds at 35 °C; at 40 °C the breaker must be derated to 7.35 A, at 45 °C to 7 A, and at 55 °C to 6.25 A (–). If the panel ambient runs above 35 °C, the continuous load must be reduced accordingly — a detail that often gets missed when the breaker is selected purely on the nameplate current. The operating range spans -40 °C to 75 °C, and the device can be mounted in any position, which simplifies layout in crowded enclosures. ## Mounting and integration At 18 mm wide (one modular unit) and 76 mm deep, the 5SY6108-8CC snaps onto a standard DIN rail via the quick-assembly system. The IP20 rating with connected conductors is typical for enclosed panel use — not for wet or dusty environments. Combined top and bottom terminals allow daisy-chaining without extra busbars. Pollution degree 3 and overvoltage category III confirm it is rated for the industrial panel environment, not just residential.","metaTitle":"Siemens 5SY6108-8CC SENTRON MCB, 1P D-curve 8 A, 6 kA","metaDescription":"Siemens 5SY6108-8CC SENTRON miniature circuit breaker, 1-pole, D characteristic, 8 A rated at AC, 6 kA breaking capacity per EN 60898. Current production; sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SY6108-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 230/400 V 6kA, 1-pole, D, 8A","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","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","acc. to DIN EN 61346-2":"F","at 35 °C / rated value":"8 A","at 40 °C / rated value":"7.35 A","at 45 °C / rated value":"7 A","at 50 °C / rated value":"6.63 A","at 55 °C / rated value":"6.25 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"1","Tripping Characteristic Class":"D","acc. to EN 60898 / rated value":"6 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","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/9b40830a24880c44eb4376cad1303cb1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=423213&mlfb=5SY6108-8CC"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY6108-8CC?","answer":"Submit an RFQ through this listing. The part is sourced to order; pricing and stock levels are confirmed at quote time."},{"question":"What is 5SY6108-8CC's listed depth?","answer":"The depth is 76 mm. The installation depth is 70 mm."},{"question":"What is 5SY6108-8CC's listed width?","answer":"The width is 18 mm, which is one modular unit."},{"question":"What compliance documentation does Siemens provide for 5SY6108-8CC?","answer":"The breaker carries approvals per EN 60898 (6 kA) and UL 1077 / CSA C22.2 No.235 (5 kA). It is halogen-free and silicon-free. Full RoHS, REACH, and CE declarations are available from Siemens."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6108-8CC","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/5SY6108-8CC 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}}