{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4103-8CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4103-8CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY4103-8CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4103-8CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4103-8CC11 miniature circuit breaker, 1-pole, 3 A AC, D characteristic, 10 kA per EN 60898, 18 mm wide, IP20.","salesMarkdown":"## D-curve and derating The D characteristic means the magnetic trip fires at 10–20× In (30–60 A for this 3 A unit), so it won't nuisance-trip on the starting surge of a small motor or a transformer magnetizing inrush. At elevated panel temperatures, the thermal element derates: 2.76 A at 40 °C, 2.49 A at 50 °C, and 2.19 A at 60 °C — factor that into your continuous load if the breaker shares a crowded DIN rail. ## Mounting and footprint Mount in any position; IP20 with conductors connected. Combined top and bottom terminals simplify daisy-chaining busbars.","metaTitle":"Siemens SENTRON 5SY4103-8CC11 MCB, 1P, 3 A, D Curve, 10 kA","metaDescription":"Siemens SENTRON 5SY4103-8CC11 miniature circuit breaker, 1-pole, 3 A rated at AC, D tripping characteristic, 10 kA breaking capacity per EN 60898. Current lifecycle. Quoted to orde","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":"5SY4103-8CC11","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 230/400 V 10kA, 1-pole, D, 3 A for railway applications","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","at AC / rated value":"3 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"For railway applications","according to EN 61346-2":"F","at 35 °C / rated value":"3 A","at 40 °C / rated value":"2.76 A","at 45 °C / rated value":"2.62 A","at 50 °C / rated value":"2.49 A","at 55 °C / rated value":"2.34 A","at 60 °C / rated value":"2.19 A","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","Tripping Characteristic Class":"D","Position / Of Power Supply Cord":"Any","according to EN 60898 / rated value":"10 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","Value Range / Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","vibration resistance / according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","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/f828cbec02c1493a67b101c272f0391a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=169713&mlfb=5SY4103-8CC11"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY4103-8CC11?","answer":"10 kA per EN 60898 at the rated voltage, sufficient for most industrial secondary distribution panels."},{"question":"What temperature derating applies to this 3 A MCB?","answer":"At 40 °C the rated current drops to 2.76 A, at 50 °C to 2.49 A, and at 60 °C to 2.19 A — account for this in continuous load calculations."},{"question":"Where can I buy 5SY4103-8CC11 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution; 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/5SY4103-8CC11","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/5SY4103-8CC11 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}}