{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6340-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6340-7","canonicalUrl":"https://aoctrl.com/siemens/5SL6340-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6340-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6340-7 miniature circuit breaker, 3-pole, C-curve, 40 A rated current, 6 kA breaking capacity per IEC/EN 60898, 400 V AC, 3 modular width units.","salesMarkdown":"The Siemens 5SL6340-7 is a SENTRON miniature circuit breaker (MCB) rated 40 A, C-curve, 3-pole, with a 6 kA breaking capacity per both EN 60898 and IEC 60947-2. It operates on 400 V AC at 50/60 Hz and occupies 3 modular width units (54 mm) on a DIN rail. ## Breaking capacity and voltage rating Rated 6 kA under both EN 60898 and IEC 60947-2, this MCB safely interrupts fault currents up to 6 kA at 400 V AC. The multi-phase maximum operating voltage is 440 V AC, giving headroom for nominal 400 V three-phase systems. For DC applications, the maximum rated voltage is 72 V — suitable for control circuits but not for high-voltage DC bus protection. Snap-on DIN rail mounting, any position. Dimensions: 90 mm height, 54 mm width (3 x 18 mm modular units), 76 mm depth, with 70 mm installation depth. Sealable (padlockable) handle for lockout/tagout compliance. Halogen-free and silicon-free construction. Mechanical service life 10,000 operating cycles typical.","metaTitle":"Siemens 5SL6340-7 SENTRON MCB, 3P C 40A 6kA","metaDescription":"Siemens 5SL6340-7 SENTRON miniature circuit breaker, 3-pole, C-curve, 40 A, 6 kA breaking capacity per IEC/EN 60898. Active production. Sourced 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":"5SL6340-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3-pole, C, 40 A","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":"3","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":"400 V","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"6 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","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=412198&mlfb=5SL6340-7"},"ai":{"faq":[{"question":"Where can I buy 5SL6340-7?","answer":"The 5SL6340-7 is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional alternative to 5SL6340-7?","answer":"The 5SL4363-7 is the closest functional peer — same 3-pole, C-curve, 40 A rating, same physical footprint (90 x 54 x 76 mm), same DIN-rail mounting. The key difference: 5SL4363-7 carries a 10 kA breaking capacity (vs. 6 kA on the 5SL6340-7) and dissipates 5 W per pole (vs. 3.3 W). If your panel requires 10 kA SCCR, the 5SL4363-7 is the direct upgrade; otherwise the 5SL6340-7 drops into the same panel without rewiring."},{"question":"Will 5SL6340-7 drop into a panel specified around 5SL4363-7?","answer":"Yes, identical dimensions (90 x 54 x 76 mm), same 3-pole DIN-rail footprint, same 70 mm installation depth. No rewiring or panel modification needed. The only trade-off is the lower 6 kA breaking capacity — verify your available fault current before substituting."},{"question":"What is the depth of 5SL6340-7?","answer":"76 mm overall depth, with 70 mm installation depth behind the panel face."},{"question":"What compliance documentation is available for 5SL6340-7?","answer":"The MCB carries IEC/EN 60898 and IEC 60947-2 ratings. It is halogen-free and silicon-free. Standard documentation includes the manufacturer's declaration of conformity; specific RoHS/REACH/UL declarations should be requested at quote time as they are not listed in the base specification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6340-7","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/5SL6340-7 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}}