{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4401-5","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4401-5","canonicalUrl":"https://aoctrl.com/siemens/5SY4401-5","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4401-5","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4401-5 miniature circuit breaker, 4-pole, Type A characteristic, 10 kA (EN 60898) / 35 kA (IEC 60947-2), 400 V AC, 72 mm wide, 76 mm deep.","salesMarkdown":"The Siemens SENTRON 5SY4401-5 is a 4-pole miniature circuit breaker with a Type A tripping characteristic, designed for AC circuits up to 400 V (440 V multi- or single-phase) and DC circuits up to 60 V (72 V max). Its breaking capacity reaches 10 kA per IEC/EN 60898-1 and 35 kA per IEC 60947-2, with a DC rating of 15 kA per IEC 60947-2 and 5 kA per UL 1077 / CSA C22.2 No.235. The 5SY4401-5 carries three distinct interrupting ratings: 10 kA under IEC/EN 60898-1 (the standard for household and similar installations), 35 kA under IEC 60947-2 (industrial circuit-breaker standard), and 5 kA under UL 1077 / CSA C22.2 No.235 for North American supplementary protection. The DC rating of 15 kA at 60 V (72 V max) covers DC bus or battery-string protection where the arc is harder to extinguish than on AC. ## Environmental and installation constraints Rated for an ambient range of -40 °C to 75 °C, with derating above 55 °C: max 95 % RH up to 55 °C, then 55 % RH up to 70 °C, then 35 % RH up to 75 °C. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz — sufficient for mounting on machine frames or near rotating equipment. Halogen-free and silicon-free construction avoids corrosive off-gassing in sealed cabinets.","metaTitle":"5SY4401-5 SENTRON MCB, 4-pole, 10 kA, Type A, 400 V AC","metaDescription":"Siemens SENTRON 5SY4401-5 miniature circuit breaker, 4-pole, 10 kA per EN 60898, 35 kA per IEC 60947-2, Type A characteristic, 400 V AC. Active production, sourced to order. Reques","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":"5SY4401-5","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, A, 1 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","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","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"A","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","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","supply voltage with single-phase operation at AC rated value":"230 V","power loss [W] for rated value of the current at AC in hot operating state per pole":"2.1 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0f28779091c79c04acac10841c5ed52f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=66320&mlfb=5SY4401-5"},"ai":{"faq":[{"question":"Where can I buy 5SY4401-5 and how do I get a price?","answer":"This part is available through independent distribution; submit an RFQ for a current price and availability quote. No stock count or price is listed here."},{"question":"What compliance documentation does Siemens provide for 5SY4401-5?","answer":"The breaker is certified to IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077 / CSA C22.2 No.235. RoHS, REACH, and halogen-free/silicon-free declarations are included with the standard documentation package."},{"question":"What are the key ratings of 5SY4401-5?","answer":"4-pole, Type A trip curve, 400 V AC (440 V multi/single-phase), 60 V DC (72 V max). Breaking capacity: 10 kA per EN 60898, 35 kA per IEC 60947-2, 15 kA DC per IEC 60947-2, 5 kA per UL 1077. Width 72 mm (4 MW), depth 76 mm, installation depth 70 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4401-5","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/5SY4401-5 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}}