{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL7440-7RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL7440-7RC","canonicalUrl":"https://aoctrl.com/siemens/5SL7440-7RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL7440-7RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SL7440-7RC, 5SL7 series miniature circuit breaker, 415 V, 4-pole, 15 kA breaking capacity, C-curve, 40 A rated current.","salesMarkdown":"## What the ratings mean for the panel The Siemens 5SL7440-7RC is a 4-pole miniature circuit breaker rated for 415 VAC with a 15 kA breaking capacity and a C-curve trip characteristic at 40 A. The C-curve (magnetic trip between 5 and 10 times In) means it handles moderate inrush from motor starters or transformer loads without nuisance tripping, while still clearing hard faults fast. The 15 kA breaking capacity at 415 V tells you it can safely interrupt a fault current up to that level — critical for verifying the available short-circuit current at the panelboard doesn't exceed this rating, or you need an upstream current-limiting device. It snaps onto standard DIN rail, so panel integration is straightforward; leave a module's width of free air on each side for heat dissipation at full load.","metaTitle":"Siemens 5SL7440-7RC Miniature Circuit Breaker, 415V 4P 15kA","metaDescription":"Siemens 5SL7440-7RC miniature circuit breaker, 415 VAC, 4-pole, 15 kA breaking capacity, C-curve, 40 A. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e7862aace64bffc8e9255aaa7c9eb479.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=646414&mlfb=5SL7440-7RC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL7440-7RC/alternatives.json"},"ai":{"faq":[{"question":"What is the description and key ratings of 5SL7440-7RC?","answer":"It is a 4-pole miniature circuit breaker rated for 415 V, with a 15 kA breaking capacity, C-curve trip characteristic, and 40 A rated current."},{"question":"Where can I buy 5SL7440-7RC and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL7440-7RC","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/5SL7440-7RC 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}}