{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4404-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4404-7","canonicalUrl":"https://aoctrl.com/siemens/5SY4404-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4404-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4404-7, miniature circuit breaker, 4-pole, C-curve, 4 A rated current, 10/35 kA breaking capacity.","salesMarkdown":"The 5SY4404-7: Temperature derating is specified from 35 °C upward: 3.81 A at 40 °C, stepping down to 3.39 A at 60 °C. ## Mounting and panel footprint The 5SY4404-7 occupies 4 modular width units (72 mm wide) on a DIN rail, with a depth of 76 mm (70 mm installation depth). The quick-assembly system allows snap-on mounting and removal without tools. Combined terminals are provided at both top and bottom, accepting conductors up to the cross-section supported by the terminal design. Mounting position is unrestricted, and the enclosure is sealable. IP20 is achieved only with connected conductors — the front face is finger-safe, but the terminals require conductors to maintain the protection rating. The part is halogen-free and silicon-free, which may simplify compliance declarations for certain industry segments (semiconductor, medical, rail) where material restrictions are enforced.","metaTitle":"Siemens 5SY4404-7 MCB, 4-Pole C-Curve 4A, 35kA","metaDescription":"Siemens SENTRON 5SY4404-7 miniature circuit breaker, 4-pole, C-curve, rated 4 A at 35°C, breaking capacity 10 kA (EN 60898) / 35 kA (IEC 60947-2). Current production, sourced to or","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":"5SY4404-7","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, 4A, 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":"4 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":"4 A","at 40 °C / rated value":"3.81 A","at 45 °C / rated value":"3.71 A","at 50 °C / rated value":"3.61 A","at 55 °C / rated value":"3.5 A","at 60 °C / rated value":"3.39 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":"$50.80","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3c9c86a84e58051b221d091856fc3086.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=521980&mlfb=5SY4404-7"},"ai":{"faq":[{"question":"What are the key standards this breaker complies with?","answer":"It meets IEC/EN 60898-1 and IEC/EN 60947-2, as well as UL1077. The breaking capacity is verified under both standards: 10 kA per EN 60898 and 35 kA per IEC 60947-2."},{"question":"What is the physical width of the 5SY4404-7?","answer":"It is 72 mm wide, which corresponds to 4 modular width units on a standard DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4404-7","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/5SY4404-7 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}}