{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6250-7BB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6250-7BB","canonicalUrl":"https://aoctrl.com/siemens/5SL6250-7BB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6250-7BB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 2-pole C-curve, 50 A, 400 V AC, 6 kA breaking capacity per EN 60898, 2 modular width units.","salesMarkdown":"The 2-pole design switches both phase and neutral on a single-phase circuit, or two phases in a multi-phase system. With a maximum operating voltage of 440 V AC multi-phase, it's suited for 400 V three-phase distribution boards where you need to protect a single-phase tap or a two-phase load. The 72 V DC maximum rating means it can also serve in some DC circuits, but the DC breaking capacity isn't listed — treat that as a derating case and verify coordination with the upstream fuse or breaker. Thermal derating is baked into the spec: the breaker carries 50 A at 30 °C ambient, but drops to 46.19 A at 40 °C, 44 A at 45 °C, and 39.81 A at 55 °C (–). The 10 000 mechanical switching cycles is typical for this class; it's not a high-cycle motor-starting contactor, but fine for normal branch-circuit switching and fault interruption. The 5SL6250-7BB snaps onto a standard 35 mm DIN rail per EN 60715, occupying 2 modular width units (36 mm wide,). It's sealable, meaning you can lock the toggle in the off position with a padlock hasp for lockout/tagout. The halogen-free and silicon-free construction is a plus for environments where outgassing from a fault could damage sensitive electronics or contaminate cleanroom processes.","metaTitle":"Siemens 5SL6250-7BB SENTRON MCB, 2-pole C-curve 50 A, 6 kA","metaDescription":"Siemens 5SL6250-7BB SENTRON miniature circuit breaker, 2-pole, C-curve, 50 A rated at 400 V AC, 6 kA breaking capacity per EN 60898. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"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","Energy Limitation Class":"3","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 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":"C","at DC / rated value / maximum":"72 V","according to EN 60898 / rated value":"6 kA","supply voltage / at AC / rated value":"400 V","according to IEC 60947-2 / rated value":"6 kA","Type Of Voltage / Of The Operating Voltage":"AC","with multi-phase operation / at AC / maximum":"440 V","Value Range / Of The Supply Voltage Frequency":"50/60 Hz","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/f71080622574f4a5977d64a3158ed2d8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=92948&mlfb=5SL6250-7BB","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6250-7BB/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SL6250-7BB?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here."},{"question":"What is the breaking capacity of 5SL6250-7BB?","answer":"6 kA per EN 60898 and also 6 kA per IEC 60947-2 at 400 V AC. That's the rated short-circuit capacity for the breaker."},{"question":"Will 5SL6250-7BB fit in a panel designed for 5SL4363-7?","answer":"Both are 2-pole SENTRON MCBs on 36 mm width, so the footprint is the same. But the 5SL4363-7 is a different rating — verify the current and curve match your circuit before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6250-7BB","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/5SL6250-7BB 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}}