{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5105-7KK11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5105-7KK11","canonicalUrl":"https://aoctrl.com/siemens/5SY5105-7KK11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5105-7KK11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5 series, miniature circuit breaker, 1-pole, C-curve, 10 A, 10 kA per EN 60898, 15 kA per IEC 60947-2, designed for railway applications.","salesMarkdown":"On a DC circuit, it's rated 10 kA per EN 60898-2 at 220 V, and 15 kA per IEC 60947-2 — useful for DC bus protection in drives or battery-backed systems. Energy limitation class 3 means it clips the let-through energy on a fault, which helps with downstream device coordination and reduces arc-flash stress on the panel. ## Physical fit and installation At 18 mm wide (1 modular unit), it occupies a single slot on a DIN rail.","metaTitle":"Siemens 5SY5105-7KK11 SENTRON MCB, C-Curve 10A 1P, 10kA","metaDescription":"Siemens SENTRON 5SY5105-7KK11 miniature circuit breaker, C-curve, 10 A, 1-pole, 10 kA per EN 60898, 15 kA per IEC 60947-2. Active production. Sourced to order. RFQ for pricing.","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","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","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 AC rated value":"400 V","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":"For railway applications","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"universal current","Neutral Conductor Switching":"No","Number Of Modular Width Units":"1","Position Of Power Supply Cord":"AC as required, observe DC polarity","Tripping Characteristic Class":"C","at DC according to EN 60898-2":"10 kA","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/DC","at DC according to IEC 60947-2 rated value":"15 kA","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"250 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","supply voltage with single-phase operation at AC rated value":"230 V","power loss [W] for rated value of the current at AC in hot operating state per pole":"0.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=341538&mlfb=5SY5105-7KK11","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY5105-7KK11/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY5105-7KK11 and get a price?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Submit an RFQ for current pricing and availability."},{"question":"Will 5SY5105-7KK11 drop into a panel specified around 5SY5240-7?","answer":"Both are 1-pole SENTRON MCBs on the same 18 mm footprint with identical mounting, so the 5SY5105-7KK11 will physically fit into a panel designed for the 5SY5240-7 without rewiring the DIN rail or busbar. The difference is the current rating and breaking capacity — verify the circuit's load and fault level before swapping."},{"question":"What compliance documentation is available for 5SY5105-7KK11?","answer":"The part carries the SENTRON brand and is designed to EN 60898 and IEC 60947-2 standards. It is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, request it with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5105-7KK11","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/5SY5105-7KK11 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}