{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6320-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6320-6","canonicalUrl":"https://aoctrl.com/siemens/5SL6320-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6320-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6320-6, miniature circuit breaker, 3-pole, B-curve, 20 A (30 °C), 6 kA per EN 60898, 400 V AC, IP20.","salesMarkdown":"The Siemens SENTRON 5SL6320-6 is a 3-pole miniature circuit breaker with a B tripping characteristic, rated 20 A at 30 °C and 6 kA breaking capacity per EN 60898. It operates on 400 V AC supply voltage, making it a standard choice for residential and infrastructure branch-circuit protection where the load is primarily resistive or low-inrush. The B-curve trips at 3–5× rated current, so it's sized for lighting and general-purpose socket circuits — not motor or transformer loads where a C or D curve would be needed to avoid nuisance trips on inrush. The 6 kA breaking capacity at 400 V AC is the standard domestic/commercial fault level per EN 60898; the same 6 kA rating per IEC 60947-2 confirms it also meets the industrial standard for the same fault current. Thermal derating is published: 18.79 A at 40 °C, 18.4 A at 45 °C, 16.8 A at 55 °C. Mounting position any — no orientation restrictions for derating. Sealable and touch-protected, which matters for lockout/tagout compliance in commercial panels. Halogen-free and silicon-free construction — important for clean-room or semiconductor-adjacent installations where outgassing can contaminate optics or contacts. Current production. Standard catalog item in the SENTRON family. Sourced and quoted to order.","metaTitle":"Siemens 5SL6320-6 SENTRON MCB, 3P B 20 A 6 kA","metaDescription":"Siemens 5SL6320-6 SENTRON miniature circuit breaker, 3-pole, B-curve, 20 A rated at 30 °C, 6 kA per EN 60898. Active production. Quoted 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":"5SL6320-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3-pole, B, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"3","Type Of Voltage":"AC","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"20 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Number Of Poles / Note":"3P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"20 A","at 40 °C / rated value":"18.79 A","at 45 °C / rated value":"18.4 A","at 55 °C / rated value":"16.8 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"3","Tripping Characteristic Class":"B","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","acc. to IEC 60947-2 / rated value":"6 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","Influence Of The Surrounding Temperature":"Periodically +55°C, max. 95% humidity","with multi-phase operation / at AC / maximum":"440 V","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/26f8e9a6c022fc7848ab38305bf8e4ea.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=525879&mlfb=5SL6320-6"},"ai":{"faq":[{"question":"Will 5SL6320-6 drop into a panel specified around 5SL4120-7CC without rewiring?","answer":"Both are 3-pole SENTRON MCBs on the same DIN-rail footprint, but they differ in curve and rating — the 5SL6320-6 is a B-curve 20 A, while the 5SL4120-7CC is a different variant. The physical swap is possible if the panel wiring and load match the 20 A B-curve rating; verify the branch circuit's fault current and load type before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6320-6","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/5SL6320-6 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}}