{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6406-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6406-6","canonicalUrl":"https://aoctrl.com/siemens/5SL6406-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6406-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6406-6, miniature circuit breaker, 4-pole, B characteristic, 6 A, 6 kA, 400 V AC.","salesMarkdown":"The Siemens 5SL6406-6 is a SENTRON miniature circuit breaker, 4-pole, B-curve, rated 6 A at 400 V AC with a 6 kA breaking capacity per both EN 60898 and IEC 60947-2. It's the kind of part you snap onto a DIN rail in a residential or light-commercial panel and forget about — until a fault happens, then it clears the circuit cleanly. Rated 6 A at 30 °C, it derates to 5.64 A at 40 °C and 5.04 A at 55 °C — so if your panel runs hot, you need to account for that when sizing the branch circuit. That's standard for most residential and light-commercial panels where the prospective fault current doesn't exceed 6 kA. If your installation has a higher available fault current (say 10 kA or 25 kA), this isn't the breaker for that spot. The -40 °C to 75 °C operating range covers unheated utility rooms and outdoor enclosures in most climates. The 10 000 mechanical switching cycles is typical for this class — it's not a contactor meant for daily load switching, but it'll handle occasional on-off operation for isolation and testing without wearing out early.","metaTitle":"Siemens 5SL6406-6 SENTRON MCB, 4P B 6A 6kA 400V","metaDescription":"Siemens 5SL6406-6 SENTRON miniature circuit breaker, 4-pole, B-curve, 6A rated, 6kA breaking capacity per IEC 60898/60947-2, 400V AC. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","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":"6 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"6 A","at 40 °C / rated value":"5.64 A","at 45 °C / rated value":"5.52 A","at 55 °C / rated value":"5.04 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"4","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","Type Of Voltage / Of The Operating Voltage":"AC","with multi-phase operation / at AC / maximum":"440 V","Product Component / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/30ebaf91390ce41344ed22b053eec81a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=237054&mlfb=5SL6406-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6406-6/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 5SL6406-6?","answer":"It's a 4-pole, B-curve miniature circuit breaker rated 6 A at 400 V AC with a 6 kA breaking capacity per EN 60898 and IEC 60947-2. It measures 72 mm wide, 76 mm deep, and operates from -40 °C to 75 °C."},{"question":"How do I get pricing and availability for the 5SL6406-6?","answer":"Submit an RFQ — we source this through independent distribution and confirm current pricing and availability at quote time. No stock figures on the page, but we can tell you what the channel looks like."},{"question":"Will the 5SL6406-6 drop into a panel specified around the 5SL6016-7KL?","answer":"The 5SL6406-6 is a 4-pole breaker (72 mm wide, 4 modular units), while the 5SL6016-7KL is a 1-pole unit (18 mm wide). They share the same SENTRON platform and DIN-rail footprint, but a 4-pole won't fit a panel layout designed for single-pole breakers without changing the busbar and rail space allocation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6406-6","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/5SL6406-6 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}}