{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4250-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4250-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SL4250-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4250-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4250-8CC miniature circuit breaker, 2-pole, D tripping characteristic, 50 A rated at 400 V AC, 10 kA breaking capacity per EN 60898, 2 MW units wide.","salesMarkdown":"The Siemens SENTRON 5SL4250-8CC is a 2-pole miniature circuit breaker with a D tripping characteristic, rated 50 A at 400 V AC and a breaking capacity of 10 kA per EN 60898. Rated current derates with ambient temperature: 46.19 A at 40 °C, 44.17 A at 45 °C, 42.05 A at 50 °C, and 39.81 A at 55 °C. Mounting position is unrestricted — can be oriented vertically, horizontally, or flat against the rail. ## Lifecycle and sourcing status No official successor has been published. The part is a standard catalog item in the SENTRON portfolio, so lead times are typically consistent with Siemens' production schedules for this class. Touch protection is integrated (finger-safe terminals). ## Electrical ratings and coordination notes Maximum operating voltage on multi-phase AC circuits is 440 V. Single-phase supply rated at 400 V AC. For DC circuits, the maximum rated voltage is 72 V — this is not a general-purpose DC breaker for higher-voltage battery banks or solar strings. The neutral conductor is not switched (2-pole design switches both phase conductors, no integral neutral pole). Suitable for 2-phase or single-phase 2-wire applications where both lines are protected. Suitability listed for residential buildings and infrastructure — standard distribution board installation. Not specifically rated for motor-starting duty beyond the D-curve's inrush tolerance; verify coordination with downstream contactors if used in a motor branch circuit.","metaTitle":"5SL4250-8CC SENTRON MCB, 2-pole D 50 A, 400 V, 10 kA","metaDescription":"Siemens SENTRON 5SL4250-8CC miniature circuit breaker, 2-pole, D-curve, 50 A rated at 400 V AC, 10 kA breaking capacity per EN 60898. Active lifecycle, sourced to order. IP20, -40","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","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":"50 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","according to EN 61346-2":"F","at 30 °C / rated value":"50 A","at 40 °C / rated value":"46.19 A","at 45 °C / rated value":"44.17 A","at 50 °C / rated value":"42.05 A","at 55 °C / rated value":"39.81 A","according to IEC 81346-2":"F","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","Tripping Characteristic Class":"D","at DC / rated value / maximum":"72 V","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"10 kA","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","vibration resistance / according to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0b21f19fe80e41901ece3721f2bd71bd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=28821&mlfb=5SL4250-8CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL4250-8CC/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4250-8CC","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/5SL4250-8CC 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}}