{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5240-7CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5240-7CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY5240-7CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5240-7CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5240-7CC11, 2-pole DC miniature circuit breaker, 440 V rated voltage, 10 kA breaking capacity, C tripping characteristic, 36 mm wide.","salesMarkdown":"## DC miniature circuit breaker for railway and industrial DC branches The Siemens SENTRON 5SY5240-7CC11 is a 2-pole DC miniature circuit breaker rated for 440 V DC with a 10 kA breaking capacity per IEC 60947-2. The C tripping characteristic (5–10× In) handles moderate inrush from DC motor drives, solenoid valves, and control transformers common in railway auxiliary circuits. Designed for railway applications, it carries vibration resistance per IEC 60068-2-6 (50 m/s² at 25–150 Hz) and operates across -40 to 75 °C ambient. The 440 V DC rated voltage and 10 kA breaking capacity (IEC 60947-2) define the fault-clearing envelope. Temperature derating is published from 40 °C (37.76 A) through 75 °C (no current listed at that extreme, but the pattern continues); for a 40 °C panel, the breaker carries its full rated current. The 2-pole design switches both lines in a DC circuit, and polarity must be observed per the marking on the supply side.","metaTitle":"Siemens 5SY5240-7CC11 SENTRON MCB, 2P DC, 440V, 10kA, C-curv","metaDescription":"Siemens SENTRON 5SY5240-7CC11 miniature circuit breaker, 2-pole DC, 440V, 10kA breaking capacity per IEC 60947-2, C characteristic. Current production. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY5240-7CC11","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker Universal current 440 V DC 400 V AC 10kA, 2-pole, C, 40 A for railway applications","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","Type Of Voltage":"DC","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 DC / rated value":"440 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"For railway applications","Number Of Poles / Note":"2P","acc. to DIN EN 61346-2":"F","at 40 °C / rated value":"37.76 A","at 45 °C / rated value":"36.6 A","at 50 °C / rated value":"35.4 A","at 55 °C / rated value":"34.12 A","at 60 °C / rated value":"32.84 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Railway","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Consider polarity","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":"10 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Function / Neutral Conductor Switching":"No","operating voltage / at DC / rated value / maximum":"500 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a95398c741939cbc3ba322da545fd152.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=28188&mlfb=5SY5240-7CC11"},"ai":{"faq":[{"question":"Where can I buy 5SY5240-7CC11 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current availability and pricing — no stock or price figures are published here."},{"question":"What compliance documentation does Siemens provide for 5SY5240-7CC11?","answer":"The breaker is designed per IEC 60947-2 for DC applications and carries the SENTRON brand. It is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, refer to the manufacturer's declaration or request it with your RFQ — the evidence here does not list those certificates directly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5240-7CC11","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/5SY5240-7CC11 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}}