{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ6140-7FC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ6140-7FC","canonicalUrl":"https://aoctrl.com/siemens/5SJ6140-7FC","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ6140-7FC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SJ6140-7FC miniature circuit breaker, 6kA, 1-pole, C-curve, 40A.","salesMarkdown":"The Siemens 5SJ6140-7FC is a 1-pole miniature circuit breaker rated for 40 A with a C-trip curve and a 6 kA interrupting capacity per IEC 60898. The C-curve (5–10× In) makes it a standard choice for general-purpose branch-circuit protection where moderate inrush — from small motors, lighting ballasts, or control transformers — is expected. The 6 kA breaking capacity covers most commercial and light industrial panelboards fed from a transformer of typical impedance.","metaTitle":"Siemens 5SJ6140-7FC Miniature Circuit Breaker, 6kA, 1-pole,","metaDescription":"Siemens 5SJ6140-7FC miniature circuit breaker, 6kA interrupting capacity, 1-pole, C-curve, 40A. Current production. Quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0026af8ac26e772e5d65e04334af39e5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1502690&mlfb=5SJ6140-7FC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SJ6140-7FC/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 5SJ6140-7FC?","answer":"The interrupting capacity is 6 kA per IEC 60898."},{"question":"Where can I buy 5SJ6140-7FC?","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/5SJ6140-7FC","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/5SJ6140-7FC 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}}