{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3450-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3450-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL3450-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3450-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SL3450-7MB, miniature circuit breaker, 400V AC, 4.5kA, 4-pole, C-curve, 50A.","salesMarkdown":"The Siemens 5SL3450-7MB is a 4-pole miniature circuit breaker rated for 400V AC with a 4.5kA breaking capacity, a C-curve trip characteristic, and a 50A rated current. It belongs to the Basic Devices product family within the 5SL series. Packaged singly, dimensions 216 x 93 x 82 mm. The 4-pole form factor occupies four standard DIN-rail module widths (roughly 72 mm total). In a crowded enclosure, account for the 50A rating's thermal dissipation — adjacent devices may need derating if ambient exceeds 40°C. The C-curve's 5-10x In trip band means it coordinates well with upstream Type S or selective breakers for branch-circuit selectivity.","metaTitle":"Siemens 5SL3450-7MB MCB, 400V 4.5kA 4P C-Curve 50A","metaDescription":"Siemens 5SL3450-7MB miniature circuit breaker, 400V AC, 4.5kA breaking capacity, 4-pole, C-curve, 50A. Active production. RoHS compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Group Code":"P310","Product Group":"3803","Product class":"B: return restricted, please contact your Siemens partner/contact","Quantity Unit":"1 Piece","Product Family":"Basic Devices","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"216.00 x 93.00 x 82.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 01-10-16","REACH Art. 33 Duty to inform according to the current list of candidates":"Lead CAS-No. 7439-92-1 > 0,1 % (w / w)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d691f22268970e9e2ec0b29a8b02655c.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/5SL3450-7MB?tree=CatalogTree","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL3450-7MB/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of this MCB?","answer":"It is a 400V AC, 4.5kA breaking capacity, 4-pole, C-curve miniature circuit breaker rated at 50A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3450-7MB","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/5SL3450-7MB 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}}