{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4508-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4508-8","canonicalUrl":"https://aoctrl.com/siemens/5SL4508-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4508-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4508-8, miniature circuit breaker, 1P+N, D characteristic, 8 A rated, 10 kA breaking capacity, 230 V AC, 2 MW.","salesMarkdown":"The Siemens 5SL4508-8 is a SENTRON miniature circuit breaker — 1P+N, D tripping curve, rated 8 A at 230 V AC with a 10 kA breaking capacity certified to both EN 60898 and IEC 60947-2. This is a 1P+N unit: the neutral pole is switched alongside the phase, which simplifies isolation and meets the requirements of many national wiring rules for final subcircuits. Rated voltage is 230 V AC single-phase, with a maximum of 250 V AC in single-phase operation. ## Thermal derating and environmental limits At 40 °C it derates to 7.39 A, at 45 °C to 7.04 A, and at 55 °C to 6.37 A. If your panel runs warm — near a transformer or in a crowded enclosure — factor that derate into the load calculation. Mounting position is unrestricted, which helps in tight enclosures where vertical or horizontal orientation is the only option. ## Construction and compliance details Sealable with a lead seal for tamper-proofing in metering or security applications.","metaTitle":"Siemens 5SL4508-8 SENTRON MCB, 1P+N, D Curve, 8A, 10kA","metaDescription":"Siemens 5SL4508-8 SENTRON miniature circuit breaker, 1P+N, D tripping characteristic, 8A rated, 10kA breaking capacity per IEC 60898 & IEC 60947-2. Current production. Quoted to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SL4508-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 230 V 10kA, 1+N-pole, D, 8A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","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":"8 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Number Of Poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"8 A","at 40 °C / rated value":"7.39 A","at 45 °C / rated value":"7.04 A","at 55 °C / rated value":"6.37 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","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":"230 V","Influence Of The Surrounding Temperature":"+55 °C, max. 95% humidity","Product Function / Neutral Conductor Switching":"Yes","with single-phase operation / at AC / rated value":"250 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/3ce392804f2af16e298b4cc6cab875e3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=303487&mlfb=5SL4508-8"},"ai":{"faq":[{"question":"What is the 5SL4508-8 used for?","answer":"It is a miniature circuit breaker for residential buildings and infrastructure, protecting final subcircuits against overload and short circuit. The D curve suits loads with high inrush current such as small motors, transformers, and fluorescent lighting."},{"question":"What is the breaking capacity of the 5SL4508-8?","answer":"10 kA per both EN 60898 and IEC 60947-2 at 230 V AC."},{"question":"Where can I buy the 5SL4508-8?","answer":"Sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for the 5SL4508-8?","answer":"The part carries IEC 60898 and IEC 60947-2 certification. The housing is halogen-free and silicon-free. Full RoHS/REACH declarations are available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4508-8","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/5SL4508-8 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}}