{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL7402-8RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL7402-8RC","canonicalUrl":"https://aoctrl.com/siemens/5SL7402-8RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL7402-8RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SL7402-8RC miniature circuit breaker, 415 V AC, 4-pole, 15 kA breaking capacity, D tripping characteristic, 2 A rated current.","salesMarkdown":"## What this MCB is and where it fits The Siemens 5SL7402-8RC is a 4-pole miniature circuit breaker rated 415 V with a 15 kA breaking capacity, D characteristic, and 2 A rated current. It snaps onto DIN rail in a distribution board or sub-panel, sized for protecting final circuits against overload and short-circuit in three-phase systems up to 415 V line-to-line. ## What the ratings mean for fit The D tripping curve means it tolerates inrush currents 10–14 times the rated current before the magnetic trip operates — designed for loads with high starting surges like small motors, transformers, or discharge lighting. At 2 A, this is a low-current branch breaker, not a main incomer. The 15 kA breaking capacity at 415 V is the maximum fault current it can safely interrupt without welding contacts or rupturing the case; verify the prospective short-circuit current at the installation point is below that figure.","metaTitle":"Siemens 5SL7402-8RC MCB, 415V 4-pole 15kA D 2","metaDescription":"Siemens 5SL7402-8RC miniature circuit breaker, 415V 4-pole 15kA, D characteristic, 2A. Current production. Sourced to order. Request quote for pricing and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"title":"5SL7402-8RC","description":"Miniature circuit breaker 415 V 4-pole 15 kA D 2","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7a772ddd5fce3e731ca56eed95b60ef5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=646397&mlfb=5SL7402-8RC"},"ai":{"faq":[{"question":"What is the 5SL7402-8RC's breaking capacity and voltage rating?","answer":"It is rated 415 V, 4-pole, with a 15 kA breaking capacity and a D tripping characteristic at 2 A. This suits three-phase final circuits where the prospective fault current does not exceed 15 kA."},{"question":"Where can I buy the 5SL7402-8RC and get current pricing?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Submit a request for quote; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL7402-8RC","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/5SL7402-8RC 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}}