{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4406-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4406-7","canonicalUrl":"https://aoctrl.com/siemens/5SY4406-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4406-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4406-7 4-pole miniature circuit breaker, C-curve 6 A rated current, 10 kA per EN 60898 / 35 kA per IEC 60947-2, IP20 with conductors, -40 to 75 °C.","salesMarkdown":"## Watch the temperature derate The 5SY4406-7: That 6 A rating holds at 35 °C ambient. In a warm cabinet — say 50 °C — the continuous current drops to 5.41 A, and at 60 °C it's 5.09 A. If you're slotting this next to a drive or transformer that drives the internal temperature up, factor in the derate rather than nuisance tripping. The breaker itself can handle up to 75 °C ambient and as low as -40 °C, so the limits are generous; it's the trip curve that shifts. ## Mounting and layout It snaps onto DIN rail using the quick-assembly system — no tools needed. The neutral conductor is not switched (4P but neutral pass-through), so plan your phase-to-neutral distribution accordingly. Top and bottom terminals accept the same size conductors. Sealable cover is standard if the panel needs tamper-proofing.","metaTitle":"Siemens 5SY4406-7 SENTRON 4P MCB C 6A","metaDescription":"Siemens SENTRON 5SY4406-7 4-pole C-curve 6 A miniature circuit breaker, IEC/UL listed 10 kA / 35 kA. In active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY4406-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V 10kA, 4-pole, C, 6 A, D=70 mm","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","Energy Limitation Class":"3","according to EN 61346-2":"F","at 35 °C / rated value":"6 A","at 40 °C / rated value":"5.71 A","at 45 °C / rated value":"5.56 A","at 50 °C / rated value":"5.41 A","at 55 °C / rated value":"5.25 A","at 60 °C / rated value":"5.09 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 EN 60898 / rated value":"10 kA","according to IEC 60947-2 / rated value":"35 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","at DC / according to IEC 60947-2 / rated value":"15 kA","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":"$40.64","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/917c82096398095bf1a7e2cba7f902d8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=208947&mlfb=5SY4406-7"},"ai":{"faq":[{"question":"What are the key ratings?","answer":"4-pole, C-curve, 6 A at 35 °C. Interrupting: 10 kA per EN 60898, 35 kA per IEC 60947-2. Standards: IEC/EN 60898-1, IEC/EN 60947-2, UL 1077. Temperature range -40 to 75 °C."},{"question":"What compliance documentation is available?","answer":"It meets IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077. The breaker is rated pollution degree 3, overvoltage category III, IP20 with conductors connected. Halogen-free and silicon-free."},{"question":"What are the physical dimensions?","answer":"Depth 76 mm, width 72 mm, height 90 mm. Installation depth 70 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4406-7","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/5SY4406-7 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}}