{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7406-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7406-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY7406-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7406-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7406-7CC, miniature circuit breaker, 4-pole, C tripping characteristic, 6 A rated current, 30 kA breaking capacity per IEC 60947-2 at 400 V AC, 4 MW width.","salesMarkdown":"## SENTRON 5SY7406-7CC — 4-pole C-curve MCB, 6 A, 30 kA The Siemens 5SY7406-7CC is a SENTRON miniature circuit breaker with a 4-pole design and C tripping characteristic, rated 6 A at 35 °C and 400 V AC multi-phase. ## Thermal derating and ambient limits Rated 6 A at 35 °C, the 5SY7406-7CC derates to 5.67 A at 40 °C, 5.5 A at 45 °C, 5.32 A at 50 °C, and 5.13 A at 55 °C. This means a panel running at 50 °C ambient loses roughly 11 % of the nominal rating — factor that into the load schedule if the breaker sits near heat sources or in a sealed enclosure. Operating range spans -40 °C to 75 °C, with humidity limits of 95 % up to 55 °C, 55 % up to 70 °C, and 35 % at 75 °C. IP20 with connected conductors; sealable for tamper-proof installations. Halogen-free and silicon-free construction.","metaTitle":"Siemens 5SY7406-7CC SENTRON MCB, 4P C-Curve 6A, 30kA","metaDescription":"Siemens 5SY7406-7CC SENTRON miniature circuit breaker, 4-pole, C-curve, 6 A rated, 30 kA breaking capacity at 400 V AC. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY7406-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 15kA, 4-pole, C, 6A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","at AC / rated value":"6 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","according to EN 61346-2":"F","at 35 °C / rated value":"6 A","at 40 °C / rated value":"5.67 A","at 45 °C / rated value":"5.5 A","at 50 °C / rated value":"5.32 A","at 55 °C / rated value":"5.13 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Any","according to IEC 60947-2 / rated value":"30 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","Value Range / Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","vibration resistance / according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0f55c85e1dbb2b73fd81face8e2830e2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=216061&mlfb=5SY7406-7CC"},"ai":{"faq":[{"question":"Where can I buy 5SY7406-7CC and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What is 5SY7406-7CC's breaking capacity?","answer":"Rated 30 kA per IEC 60947-2 at 400 V AC, which covers most industrial panel fault-current levels up to that threshold without requiring an upstream current-limiting device."},{"question":"What compliance documentation does Siemens provide for 5SY7406-7CC?","answer":"The part carries IEC 60947-2 certification and is classified per EN 61346-2 and IEC 81346-2 as function F. It is halogen-free and silicon-free. Specific RoHS/REACH/UL declarations are available from the manufacturer's documentation portal for this SENTRON series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7406-7CC","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/5SY7406-7CC 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}}