{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4350-6KK11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4350-6KK11","canonicalUrl":"https://aoctrl.com/siemens/5SY4350-6KK11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4350-6KK11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4350-6KK11, 3-pole B-curve miniature circuit breaker, 10 kA (EN 60898-1) / 15 kA (IEC 60947-2), 400 V AC, 54 mm wide, IP20.","salesMarkdown":"The Siemens SENTRON 5SY4350-6KK11 is a 3-pole miniature circuit breaker with a B tripping characteristic, rated 10 kA interrupting capacity per EN 60898-1 and 15 kA per IEC 60947-2 at 400 V AC. The dual rating means it meets both the domestic-standard (EN 60898-1) and industrial-standard (IEC 60947-2) SCCR requirements, giving it flexibility for panel builds that need to satisfy either code. ## Integration & Fit Snap-on DIN rail mount, 3 MW (modular width units) at 54 mm wide. Sealable cover option (yes) for tamper-proof installations. Operating temperature range -40 to 75 °C, with derated humidity limits above 55 °C. IP20 with conductors connected — panel interior only, not field-exposed.","metaTitle":"Siemens 5SY4350-6KK11 SENTRON MCB, 3P B-Curve, 10/15kA","metaDescription":"Siemens SENTRON 5SY4350-6KK11 miniature circuit breaker, 3-pole B-curve, 10 kA per EN 60898-1 / 15 kA per IEC 60947-2. Active production. Available to order.","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","Standard":"DIN EN60898-1","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 V","at DC rated value":"60 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"For railway applications","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"3","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"B","according to EN 60898 rated value":"10 kA","according to IEC 60947-2 rated value":"15 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage Of The Operating Voltage":"AC","at DC according to IEC 60947-2 rated value":"15 kA","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"72 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","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":"4.3 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=245084&mlfb=5SY4350-6KK11","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4350-6KK11/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SY4350-6KK11 and get a price?","answer":"This part is available to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What are the key interrupting ratings for this MCB?","answer":"10 kA per EN 60898-1 and 15 kA per IEC 60947-2 at 400 V AC. The higher IEC rating covers industrial panel SCCR requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4350-6KK11","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/5SY4350-6KK11 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}}