{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4250-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4250-7","canonicalUrl":"https://aoctrl.com/siemens/5SL4250-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4250-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4250-7, miniature circuit breaker, 400 VAC, 10 kA, 2-pole, C characteristic, 50 A.","salesMarkdown":"The Siemens SENTRON 5SL4250-7 is a 2-pole miniature circuit breaker rated 50 A with a C-trip curve, designed for 400 VAC multi-phase circuits. Its 10 kA breaking capacity, certified to both EN 60898 and IEC 60947-2, means it can safely interrupt fault currents up to that level without upstream coordination issues in residential or infrastructure panels. The 36 mm width (2 modular units) snaps onto standard DIN rail; the 76 mm depth leaves clearance for wiring in a typical distribution board. ## Environmental and installation notes Rated for ambient temperatures from -40 °C to 75 °C, the 5SL4250-7 handles outdoor enclosures or unheated utility rooms without derating concerns. IP20 with connected conductors is standard for enclosed distribution boards; the sealable design allows lockout/tagout on the toggle. Mounting position is unrestricted, so it can be installed horizontally or inverted if the panel layout demands it. ## Coordination and accessories The 3.6 W power loss per pole at rated current is within the typical range for a 50 A MCB; factor it into enclosure thermal calculations if multiple units are ganged.","metaTitle":"Siemens 5SL4250-7 SENTRON MCB, 50A 2P C-Curve 10kA","metaDescription":"Siemens 5SL4250-7 SENTRON miniature circuit breaker, 50 A, 2-pole, C characteristic, 10 kA per EN 60898/IEC 60947-2, 400 VAC. Active production. Quoted to order.","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","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"10 kA","according to IEC 60947-2 rated value":"10 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 (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"3.6 W"}},"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=8466&mlfb=5SL4250-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL4250-7/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL4250-7?","answer":"The 5SL4250-7 is rated 10 kA per both EN 60898 and IEC 60947-2 at 400 VAC. This is the maximum prospective fault current it can safely interrupt under standard test conditions."},{"question":"Will the 5SL4250-7 drop into a panel specified for the 5SL4363-7?","answer":"The 5SL4363-7 is a 3-pole version (54 mm wide, 3 modular units) versus the 2-pole 5SL4250-7 (36 mm wide, 2 modular units). The depth and height are identical at 76 mm and 90 mm, so the busbar and DIN-rail alignment match, but the 5SL4250-7 occupies one fewer module width and switches only two poles. If the panel layout and circuit design accommodate a 2-pole breaker, it fits without rewiring the busbar; if the original spec requires three switched poles, it does not substitute."},{"question":"Where can I buy the 5SL4250-7 and get current pricing?","answer":"The 5SL4250-7 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial response."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4250-7","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/5SL4250-7 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}}