{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ6508-7FC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ6508-7FC","canonicalUrl":"https://aoctrl.com/siemens/5SJ6508-7FC","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ6508-7FC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 1P+N, C-curve, 8 A, 6 kA, 2 MW, 36 mm width.","salesMarkdown":"The Siemens 5SJ6508-7FC is a SENTRON miniature circuit breaker (MCB) rated 8 A at 230 V AC, with a C tripping characteristic and a 6 kA breaking capacity per EN 60898. ## Temperature derating matters for panel design At 30 °C ambient the breaker carries its full 8 A; at 40 °C it derates to 7.39 A, and at 45 °C to 7.04 A. If the panel runs warm — common in enclosed DIN-rail assemblies — size the upstream load so continuous current stays under the derated figure to avoid nuisance tripping. ## Mounting and footprint The housing is 36 mm wide (2 MW), 76 mm deep, 90 mm tall, with an installation depth of 70 mm behind the panel face. Mounting position is unrestricted — horizontal, vertical, or inverted — so it fits tight enclosures without derating. Neutral conductor switching is integrated (the N pole opens and closes with the line pole), which is required in many national wiring rules for single-phase final circuits.","metaTitle":"Siemens 5SJ6508-7FC SENTRON MCB, 1P+N, C-curve, 8A, 6kA","metaDescription":"Siemens 5SJ6508-7FC SENTRON miniature circuit breaker, 1P+N, C-curve, 8A rated, 6kA breaking capacity per EN 60898. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SJ6508-7FC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature Circuit Breaker 6KA, 1+N-pole, C, 8A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","at AC / rated value":"8 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","at 30 °C / rated value":"8 A","at 40 °C / rated value":"7.39 A","at 45 °C / rated value":"7.04 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","Product Feature / Touch Protection":"No","supply voltage / at AC / rated value":"230 V","Type Of Voltage / Of The Operating Voltage":"AC","Product Component / Neutral Conductor Switching":"Yes","with single-phase operation / at AC / rated value":"250 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/ae05928332e922b40a3ed4c44c4fdf49.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1502727&mlfb=5SJ6508-7FC"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SJ6508-7FC?","answer":"6 kA per EN 60898 at 230 V AC."},{"question":"Will 5SJ6508-7FC drop into a panel specified around 5SL6016-7KL without rewiring?","answer":"No — the 5SJ6508-7FC is 36 mm wide (2 MW) versus 18 mm (1 MW) for the 5SL6016-7KL, so it needs two DIN-rail slots instead of one. Both are 1P+N, C-curve, 6 kA, and share the same 76 mm depth and 90 mm height, but the wider housing means the panel layout must be adjusted."},{"question":"Where can I buy the 5SJ6508-7FC?","answer":"Sourced and quoted to order through independent distribution against an RFQ. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ6508-7FC","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/5SJ6508-7FC 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}}