{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4240-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4240-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SL4240-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4240-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4240-7CC, miniature circuit breaker, 2-pole, C-curve, 40 A, 400 V AC, 10 kA per EN 60898, 2 MW units, IP20.","salesMarkdown":"## Integrator note — 5SL4240-7CC The Siemens SENTRON 5SL4240-7CC is a 2-pole miniature circuit breaker with a C tripping characteristic, rated 40 A at 400 V AC and 10 kA breaking capacity per EN 60898. The 2-pole design (2 MW units wide, 36 mm) gives you a switched neutral or a 2-phase feed in a single module. Rated 40 A at 30 °C ambient. At 40 °C it's 36.96 A, at 45 °C it's 35.34 A, at 50 °C it's 33.64 A, and at 55 °C it's 31.85 A. The breaker's thermal-magnetic element is calibrated to these derated values; ignoring them means nuisance tripping on a warm day. Depth is 76 mm overall, installation depth 70 mm. Mounting position is any, so horizontal DIN-rail layouts in shallow enclosures are fine. Pollution degree 2 (normal industrial environment, no condensation). IP20 with connected conductors — keep it inside a closed cabinet. The 5SL4 series is Siemens' standard residential and light-commercial MCB line. Halogen-free and silicon-free construction, which matters for clean-room or semiconductor-adjacent installs where outgassing contaminates optics or wafers. Sealable (can be padlocked in OFF position for lockout/tagout). Suitability for residential buildings and infrastructure per the manufacturer's classification.","metaTitle":"Siemens 5SL4240-7CC SENTRON MCB, 2P C 40A 10kA","metaDescription":"Siemens SENTRON 5SL4240-7CC miniature circuit breaker, 2-pole, C-curve, 40 A rated at 400 V AC, 10 kA breaking capacity per EN 60898. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","at AC / rated value":"40 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","according to EN 61346-2":"F","at 30 °C / rated value":"40 A","at 40 °C / rated value":"36.96 A","at 45 °C / rated value":"35.34 A","at 50 °C / rated value":"33.64 A","at 55 °C / rated value":"31.85 A","according to IEC 81346-2":"F","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","according to EN 60898 / rated value":"10 kA","supply voltage / at AC / rated value":"400 V","Type Of Voltage / Of The Operating Voltage":"AC","with multi-phase operation / at AC / maximum":"440 V","Value Range / Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation / at AC / rated value":"440 V","vibration resistance / according to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/77b3fe62c514fdaf9d52ccbc99f9d87c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=145408&mlfb=5SL4240-7CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL4240-7CC/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 5SL4240-7CC?","answer":"Depth is 76 mm overall; installation depth is 70 mm. Width is 36 mm (2 modular units). Height is 90 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4240-7CC","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/5SL4240-7CC 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}}