{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4240-7CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4240-7CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY4240-7CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4240-7CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4240-7CC11 miniature circuit breaker, 2-pole, C characteristic, 400 V AC, 10 kA breaking capacity per EN 60898, 2 MW units, IP20.","salesMarkdown":"## Siemens 5SY4240-7CC11 — SENTRON 2-Pole C-Curve MCB The Siemens 5SY4240-7CC11 is a SENTRON miniature circuit breaker designed for 2-pole protection in AC circuits up to 400 V. Its C characteristic (tripping between 5 and 10 times rated current) suits it for moderate inrush loads like motor starters and small transformers in industrial control panels. The 10 kA breaking capacity per EN 60898 means it can safely interrupt fault currents up to that level — adequate for most sub-distribution boards in commercial and light industrial installations. ## Panel Fit & Mounting — 2 MW Units, Any Position Occupies 2 modular width units (36 mm) on a DIN rail. The quick assembly system snaps onto the rail without tools. Mounting position is any — no derating for horizontal or inverted orientation. Installation depth is 70 mm behind the panel surface; overall depth is 76 mm including the front projection. The combined terminals at top and bottom accept both busbar and conductor connections, which keeps wiring tidy in a crowded enclosure. ## Environmental & Compliance — Railway-Rated, Wide Temperature Range Rated for railway applications (per), meaning it meets the vibration and shock profiles of IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz. Temperature range is -40 °C to 75 °C, with humidity derating above 55 °C. Pollution degree 3 and overvoltage category III — suitable for fixed installations with non-conductive pollution. Halogen-free and silicon-free construction. IP20 with connected conductors — protected against finger contact, not for wet locations. ## Power Loss & Selectivity — 3.5 W per Pole Power loss is 3.5 W per pole at rated current in hot operating state. For a 2-pole breaker that's 7 W total — negligible in a ventilated panel but worth noting for high-density enclosures. Energy limitation class 3 means it limits let-through energy well, aiding downstream coordination. Mechanical service life is 10,000 operating cycles typical.","metaTitle":"Siemens 5SY4240-7CC11 SENTRON MCB, C-Curve 2-Pole 400V 10kA","metaDescription":"Siemens 5SY4240-7CC11 SENTRON miniature circuit breaker, 2-pole, C characteristic, 400 V AC, 10 kA breaking capacity per EN 60898. Active production. Quoted 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":"5SY4240-7CC11","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 2-pole, C, 40 A for railway applications","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 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":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","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","operating voltage at DC rated value maximum":"72 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","power loss [W] for rated value of the current at AC in hot operating state per pole":"3.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f63abc9e0be83180718fd2c6d2c57a65.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=161639&mlfb=5SY4240-7CC11"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4240-7CC11","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/5SY4240-7CC11 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}}