{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4406-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4406-8","canonicalUrl":"https://aoctrl.com/siemens/5SL4406-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4406-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL miniature circuit breaker, 4-pole D-curve, 6 A rated current, 10 kA breaking capacity per EN 60898, 400 V AC, 4 modular width units.","salesMarkdown":"## What this 4-pole D-curve MCB does on the line The Siemens SENTRON 5SL4406-8 is a 4-pole (4P) miniature circuit breaker with a D tripping characteristic, rated 6 A at 400 V AC. Rated current derates with ambient temperature: 6 A at 30 °C drops to 5.76 A at 40 °C and 5.37 A at 55 °C, so if the panel runs hot — say next to a drive cabinet or in a sealed enclosure — factor that derating into your load calculation. The breaker is sealable (tamper-proof tag possible) and carries touch protection on the terminals, which matters for IP20 panels where live parts stay exposed only when the cover is off. The 4-pole design switches all three phases plus the neutral (no neutral conductor switching function on this variant — the neutral is switched through the breaker). ## Environmental and compliance range Halogen-free and silicon-free construction, so it's suitable for clean environments where outgassing matters (data centers, medical, food processing). The breaker is classified under IEC 81346-2 and DIN EN 61346-2 as function code F (protective device).","metaTitle":"Siemens 5SL4406-8 SENTRON MCB, 4P D 6A 10kA, 400V AC","metaDescription":"Siemens SENTRON 5SL4406-8 miniature circuit breaker, 4-pole D-curve 6A, 10 kA breaking capacity per EN 60898, 400 V AC. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SL4406-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 4-pole, D, 6A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","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":"6 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Design Of The Product":"5SL miniature circuit breakers","Number Of Poles / Note":"4P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"6 A","at 40 °C / rated value":"5.76 A","at 45 °C / rated value":"5.64 A","at 55 °C / rated value":"5.37 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"4","Tripping Characteristic Class":"D","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","acc. to IEC 60947-2 / rated value":"10 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","Influence Of The Surrounding Temperature":"+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 (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9100e56a614e6ff3a5b83a05355de6a8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=46620&mlfb=5SL4406-8"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SL4406-8?","answer":"10 kA per EN 60898 and also 10 kA per IEC 60947-2, at 400 V AC."},{"question":"What does the D-curve mean for this MCB?","answer":"D-curve trips magnetically at 10 to 20 times the rated current (6 A), so it handles motor and transformer inrush without nuisance tripping."},{"question":"How do I get current pricing and availability for 5SL4406-8?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote and we'll confirm current pricing and availability at that time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4406-8","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/5SL4406-8 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}}