{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4350-7RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4350-7RC","canonicalUrl":"https://aoctrl.com/siemens/5SL4350-7RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4350-7RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4350-7RC, miniature circuit breaker, 3-pole, C-curve, 50 A rated, 10 kA breaking capacity per EN 60898 at 415 V AC, 18 mm width.","salesMarkdown":"## 50 A C-curve 3-pole MCB for distribution boards ## Active production — no lifecycle risk for new builds Listed as Active by Siemens. No phase-out or last-time-buy window is in effect. This part is a standard catalog item in the SENTRON family, so BOM planners can specify it for new panel designs without worrying about a near-term EOL notice. ## C-curve and breaking capacity — what they mean for coordination The C-curve trips between 5× and 10× rated current (In), so at 50 A the magnetic trip fires between 250 A and 500 A. This suits loads with moderate inrush — lighting banks, small motor circuits, and general socket outlets. The 10 kA breaking capacity per EN 60898 at 415 V AC is the standard for final circuits fed from a 10 kA-rated upstream device; verify selectivity with the upstream breaker if the prospective short-circuit current exceeds 10 kA. Power loss per pole is 4.5 W in hot operating state — three poles dissipate 13.5 W total, which matters for thermal rise in a densely populated enclosure.","metaTitle":"Siemens 5SL4350-7RC SENTRON MCB, 3P C 50 A 10 kA","metaDescription":"Siemens SENTRON 5SL4350-7RC miniature circuit breaker, 3-pole, C-curve, 50 A, 10 kA per EN 60898 at 415 V AC. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SL4350-7RC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 415 V 10kA, 3-pole, C, 50 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","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":"1","Tripping Characteristic Class":"C","supply voltage at AC rated value":"415 V","according to EN 60898 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","with single-phase operation at AC rated value":"250 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":"4.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8f5af18eec2c03ef90c12693feab69eb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=85870&mlfb=5SL4350-7RC"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL4350-7RC?","answer":"10 kA per EN 60898 at 415 V AC. This is the standard short-circuit rating for final subcircuits in residential and light commercial distribution."},{"question":"Where can I buy the 5SL4350-7RC?","answer":"The 5SL4350-7RC is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will the 5SL4350-7RC fit in a panel designed for the 5SL4363-7?","answer":"The 5SL4350-7RC is 18 mm wide (1 MWU), while the 5SL4363-7 is 54 mm wide (3 MWU). Both share the same 76 mm depth and 90 mm height, so the 5SL4350-7RC will physically fit in the same enclosure but occupies less DIN rail space. No rewiring of the busbar system is needed if the panel uses a standard 3-pole busbar — the 5SL4350-7RC connects identically."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4350-7RC","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/5SL4350-7RC 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}}