{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4406-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4406-8","canonicalUrl":"https://aoctrl.com/siemens/5SY4406-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4406-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4406-8 miniature circuit breaker, 4-pole, 6 A, 400 V AC, D-tripping characteristic, breaking capacity 10 kA EN 60898 / 35 kA IEC 60947-2.","salesMarkdown":"The Siemens 5SY4406-8 is a 4-pole miniature circuit breaker from the SENTRON 5SY4 series, rated 6 A at 400 V AC with a D-curve tripping characteristic — designed for high inrush loads like motors and transformers. D-curve tripping characteristic suits high inrush loads like motors and transformers. Breaking capacities: 10 kA, 35 kA, 5 kA, and 15 kA at DC. Width of 72 mm (4 width units), depth 76 mm, height 90 mm. Mounts via quick-assembly system on DIN rail; installation depth is 70 mm. Any mounting position works, so no de-rating for horizontal orientation. Touch protection IP20 with connected conductors keeps fingers away from live parts. Halogen-free and silicon-free construction, sealable for tamper-evident applications. Suitable for mechanical engineering and general industrial environments per the manufacturer's specification.","metaTitle":"Siemens 5SY4406-8 SENTRON 4P MCB, 6A D-Curve 400V","metaDescription":"Siemens 5SY4406-8 SENTRON 4-pole miniature circuit breaker, rated 6A at 400V AC, D-curve, breaking capacity 10kA (EN 60898) / 35kA (IEC 60947-2). Current production, available to o","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":"5SY4406-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 10kA, 4-pole, D, 6 A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","Number of poles":"4","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Degree of pollution":"3","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Number of width units":"4","Number of poles / Note":"4P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY4","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"6 A","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"35 kA","Product feature / Touch protection":"Yes","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at DC / acc. to IEC 60947-2 / rated value":"15 kA","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"440 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$338.66","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/af6a9676ee653ae2e34a117f1e15068b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=418730&mlfb=5SY4406-8"},"ai":{"faq":[{"question":"What is the depth of 5SY4406-8?","answer":"The depth is 76 mm, with an installation depth of 70 mm."},{"question":"What is the width of 5SY4406-8?","answer":"The width is 72 mm, corresponding to 4 width units on a standard DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4406-8","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/5SY4406-8 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}}