{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN4350-7CN","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN4350-7CN","canonicalUrl":"https://aoctrl.com/siemens/5SN4350-7CN","factsUrl":"https://aoctrl.com/api/mcp/products/5SN4350-7CN","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN4350-7CN, miniature circuit breaker, 3-pole, C characteristic, 50 A, 10 kA per EN 60898 at 400 V AC, 3 modular width units.","salesMarkdown":"## Fit and panel integration At 54 mm wide (3 modular width units) and 76 mm deep, it occupies standard DIN-rail space. Solid conductors up to 25 mm² land on the terminals — enough for a 50 A feed on a sub-main or feeder breaker. Mounting position is unrestricted, so it works in vertical or horizontal panel layouts without derating the thermal trip. The sealable design lets a panel builder or inspector lock the breaker in the OFF position for lockout/tagout compliance. ## Environmental range and materials","metaTitle":"Siemens 5SN4350-7CN SENTRON MCB, 3P C 50A 10kA 400V","metaDescription":"Siemens SENTRON 5SN4350-7CN miniature circuit breaker, 3-pole, C-curve, 50 A, 10 kA breaking capacity per EN 60898 at 400 V AC. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"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","at DC rated value maximum":"72 V","Number Of Modular Width Units":"3","Tripping Characteristic Class":"C","Product Feature Touch Protection":"Yes","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"10 kA","Supply Voltage Frequency Rated Value":"50 Hz","Influence Of The Surrounding Temperature":"+55 °C, max. 95% humidity","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","Product Component Neutral Conductor Switching":"No","vibration resistance according to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz","Connectable Conductor Cross-Section Solid Maximum":"25 mm²","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=289809&mlfb=5SN4350-7CN","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SN4350-7CN/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SN4350-7CN?","answer":"10 kA rated breaking capacity per EN 60898 at 400 V AC. That covers standard commercial and light industrial fault levels."},{"question":"How do I get current pricing and availability for 5SN4350-7CN?","answer":"Submit an RFQ against this order code. Pricing and stock are confirmed at quote time through independent distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN4350-7CN","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/5SN4350-7CN 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}}