{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3350-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3350-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL3350-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3350-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3350-7MB, miniature circuit breaker, 3-pole, C-curve, 50 A, 400 V AC, 4.5 kA breaking capacity per EN 60898, 3 MW DIN modules.","salesMarkdown":"The Siemens 5SL3350-7MB is a SENTRON 3-pole miniature circuit breaker with a C tripping characteristic, rated 50 A at 400 V AC and a 4.5 kA breaking capacity per EN 60898. The 4.5 kA breaking capacity is the maximum prospective fault current it can safely interrupt at 400 V AC; if your service entrance or sub-panel has a higher available fault current, you need the 10 kA variant (5SL4363-7) or an upstream current-limiting device. At 50 A and 400 V three-phase, each pole dissipates 3.5 W in the hot operating state. In a densely packed enclosure, that adds up — three poles means 10.5 W total from this breaker alone, so keep an eye on internal ambient temperature rise, especially if adjacent MCBs are also loaded near their rating. It is also sealable, allowing the panel builder to lock the toggle position with a lead seal or a Siemens sealing cap. Mounts in any position. Installation depth 70 mm. IP20 with connected conductors. Supplementary devices clip onto the right side without increasing DIN width. Sealable cover allows lockout/tagout.","metaTitle":"Siemens 5SL3350-7MB SENTRON MCB, 3P C 50 A, 4.5 kA","metaDescription":"Siemens 5SL3350-7MB SENTRON miniature circuit breaker, 3-pole, C-curve, 50 A, 4.5 kA per EN 60898, 400 V AC. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"54 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","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":"3","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"4.5 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","vibration resistance according to IEC 60068-2-6":"no","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":"3.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2be6bad6601ff81851b8a235dcff22a1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=142009&mlfb=5SL3350-7MB","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL3350-7MB/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3350-7MB","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/5SL3350-7MB 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}}