{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5108-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5108-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY5108-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5108-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5108-7CC, 1-pole miniature circuit breaker, C-curve, 8 A rated at 35 °C, 10 kA DC at 250 VDC, 18 mm wide.","salesMarkdown":"## SENTRON 5SY5108-7CC — DC-rated MCB for industrial panels The Siemens 5SY5108-7CC is a 1-pole SENTRON miniature circuit breaker with a C-curve trip characteristic, rated 8 A at 35 °C. It carries a DC breaking capacity of 10 kA at 250 VDC per IEC 60947-2, making it suitable for DC control circuits and auxiliary loads in industrial panels where the operating voltage reaches 250 VDC. At 35 °C the breaker holds 8 A continuous; derate to 7.1 A at 40 °C, 6.6 A at 45 °C, 6.06 A at 50 °C, and 5.47 A at 55 °C (–). The DC rating of 10 kA at 250 VDC is the interrupting capacity you need for 250 VDC bus-fed control circuits — verify your available fault current stays under that limit. Occupies 1 modular width (18 mm) on DIN rail. Mounts in any position via the quick-assembly system. Pollution degree 3, overvoltage category III — rated for fixed installations in industrial environments.","metaTitle":"Siemens 5SY5108-7CC SENTRON MCB, 1P C-Curve 8A, 10kA DC","metaDescription":"Siemens 5SY5108-7CC SENTRON miniature circuit breaker, 1-pole C-curve, 8 A rated at 35 °C, 10 kA DC breaking capacity at 250 VDC. Active production. Quoted 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":"5SY5108-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit-breaker 220 V DC 10kA, 1-pole, C, 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","at DC rated value":"220 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","Design Of The Product":"Machine manufacture / industry","at 35 °C rated value":"8 A","at 40 °C rated value":"7.1 A","at 45 °C rated value":"6.6 A","at 50 °C rated value":"6.06 A","at 55 °C rated value":"5.47 A","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":"1","Position Of Power Supply Cord":"Consider polarity","Tripping Characteristic Class":"C","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":"DC","at DC according to IEC 60947-2 rated value":"10 kA","operating voltage at DC rated value maximum":"250 V","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Extension Installable Supplementary Devices":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3ec5b79c7e37d9a674e4efecc98af825.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=58738&mlfb=5SY5108-7CC"},"ai":{"faq":[{"question":"What is the DC breaking capacity of 5SY5108-7CC?","answer":"10 kA at 250 VDC per IEC 60947-2. This is the maximum fault current the breaker can safely interrupt on a DC circuit."},{"question":"What is the temperature derating for 5SY5108-7CC?","answer":"Rated 8 A at 35 °C. Derate to 7.1 A at 40 °C, 6.6 A at 45 °C, 6.06 A at 50 °C, and 5.47 A at 55 °C. Size the branch circuit for the ambient temperature in your panel."},{"question":"What is the width of 5SY5108-7CC?","answer":"18 mm, which is 1 modular width on standard DIN rail."},{"question":"Where can I buy 5SY5108-7CC?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your quantity and delivery window."},{"question":"Will 5SY5108-7CC fit in a panel specified for 5SY4106-7CV?","answer":"Both are 1-pole SENTRON MCBs on 18 mm DIN-rail footprint, so the mechanical fit is the same. The 5SY5108-7CC carries a higher DC interrupting rating (10 kA at 250 VDC) and a different current rating — verify the branch-circuit protection requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5108-7CC","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/5SY5108-7CC 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}}