{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6340-7RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6340-7RC","canonicalUrl":"https://aoctrl.com/siemens/5SL6340-7RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6340-7RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6340-7RC miniature circuit breaker, 40 A, 3-pole, C characteristic, 7.5 kA breaking capacity per EN 60898, 415/440 V AC.","salesMarkdown":"The Siemens SENTRON 5SL6340-7RC is a 40 A, 3-pole miniature circuit breaker with a C tripping characteristic and a 7.5 kA breaking capacity rated per EN 60898 at 415 V AC. It's designed for residential and infrastructure branch-circuit protection where moderate inrush currents — typical of lighting, small motor, and general-purpose loads — need a delayed magnetic trip to avoid nuisance tripping on startup. The 5SL6340-7RC snaps onto a DIN rail and occupies 3 modular width units (54 mm total width), with a depth of 76 mm and an installation depth of 70 mm behind the panel face. Rated for multi-phase operation up to 440 V AC and single-phase up to 250 V AC, with a frequency range of 50/60 Hz. The C curve trips magnetically between 5 and 10 times rated current, so a 40 A breaker clears faults roughly between 200 A and 400 A instantaneously — suitable for circuits where the inrush from motors or transformers would otherwise trip a B curve. Power loss is 3.3 W per pole in hot operating state at rated current, which adds about 10 W total heat dissipation inside the enclosure — factor that into your thermal budget for a multi-breaker panel. The breaker accepts supplementary devices (shunt trips, auxiliary contacts, alarm switches) for remote signaling or emergency-off integration. The housing is sealable — a lockable cover or lead-seal wire can be fitted to prevent unauthorized switching, which is a common requirement in metering or safety-critical circuits.","metaTitle":"Siemens 5SL6340-7RC SENTRON MCB, 40 A, 3-Pole, C Curve, 7.5","metaDescription":"Siemens SENTRON 5SL6340-7RC miniature circuit breaker, 40 A, 3-pole, C characteristic, 7.5 kA breaking capacity per EN 60898. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SL6340-7RC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"MCB 40 A 3-pole C characteristic 7.5 kA","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"No","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"3","Tripping Characteristic Class":"C","supply voltage at AC rated value":"415 V","according to EN 60898 rated value":"7.5 kA","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","with single-phase operation at AC rated value":"250 V","vibration resistance according to IEC 60068-2-6":"no","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"3.3 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/670a0d17f6980c5a4837838fab992ced.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=479065&mlfb=5SL6340-7RC"},"ai":{"faq":[{"question":"Will 5SL6340-7RC drop into a panel specified around 5SL4363-7 without rewiring?","answer":"Yes, the 5SL6340-7RC and 5SL4363-7 share identical dimensions (76 mm depth, 54 mm width, 90 mm height), mounting position (any), and DIN-rail footprint, so a direct swap is mechanically possible. The key difference is the breaking capacity: the 5SL4363-7 is rated 10 kA per EN 60898, while the 5SL6340-7RC is rated 7.5 kA — verify the fault-current study before substituting."},{"question":"Where can I buy 5SL6340-7RC and how is it quoted?","answer":"The 5SL6340-7RC is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the breaking capacity of 5SL6340-7RC?","answer":"The 5SL6340-7RC has a rated breaking capacity of 7.5 kA according to EN 60898 at 415 V AC, and is rated for multi-phase operation up to 440 V AC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6340-7RC","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/5SL6340-7RC 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}}