{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4140-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4140-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SL4140-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4140-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SL4140-8CC, 1-pole D-curve miniature circuit breaker, 40 A, 10 kA breaking capacity at 230/400 V AC.","salesMarkdown":"## What this MCB does and where it fits The Siemens 5SL4140-8CC is a 1-pole miniature circuit breaker with a D tripping characteristic, rated 40 A with a 10 kA breaking capacity at 230/400 V. RoHS compliant since 01 June 2013.","metaTitle":"Siemens 5SL4140-8CC Miniature Circuit Breaker, 1-Pole D 40A","metaDescription":"Siemens 5SL4140-8CC miniature circuit breaker, 1-pole D-curve 40A, 10kA breaking capacity at 230/400V. Active production, RoHS compliant since 2013. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Group Code":"P310","Product Group":"3824","Product class":"B: return restricted, please contact your Siemens partner/contact","Quantity Unit":"1 Piece","Product Family":"Basic Devices","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"Not available","Compliance with the substance restrictions according to RoHS directive":"Since: 01-06-13","REACH Art. 33 Duty to inform according to the current list of candidates":"Lead CAS-No. 7439-92-1 > 0,1 % (w / w)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/aea7019d4c48ed948edb8928b2d23c43.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/5SL4140-8CC?tree=CatalogTree","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL4140-8CC/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SL4140-8CC and get a price?","answer":"We source this active MCB to order against an RFQ. Submit a request and we'll confirm current availability and pricing at quote time."},{"question":"What does the D-curve mean on this 40A breaker?","answer":"The D characteristic trips between 10x and 20x rated current (400–800 A for this 40 A unit), which handles the high inrush of motor starters, transformers, and discharge lighting without nuisance tripping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4140-8CC","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/5SL4140-8CC 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}}