{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7401-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7401-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7401-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7401-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7401-7, 4-pole miniature circuit breaker, C characteristic, 15 kA per IEC/EN 60898-1, 50 kA per IEC 60947-2, 400 V AC, 4 MW.","salesMarkdown":"## What this MCB covers The Siemens 5SY7401-7 is a 4-pole SENTRON miniature circuit breaker with a C-trip curve, rated 15 kA breaking capacity under IEC/EN 60898-1 and 50 kA under IEC 60947-2. It also carries a UL 1077 listing at 5 kA (AC). That dual-standard coverage means it fits both European panel builds (IEC 60898-1 for domestic/commercial, IEC 60947-2 for industrial) and North American supplementary-protection applications — one part number for a mixed-spec BOM. If your line sees high inrush from drives or welders, you'd want a D curve; for purely resistive loads, a B curve. This one splits the difference for general industrial and mechanical-engineering duty. Four modular-width units (4 MW, 72 mm wide) on a DIN rail — snap-on quick-assembly system. Mounting position any orientation. The sealable design lets you lock the toggle position after commissioning — useful for a panel that must stay in a known state during maintenance. At DC, it breaks 15 kA at 60 V and max operating voltage 72 V.","metaTitle":"Siemens 5SY7401-7 SENTRON MCB, 4P C-Curve, 15kA IEC/EN 60898","metaDescription":"Siemens 5SY7401-7 SENTRON miniature circuit breaker, 4-pole, C-trip curve, 15 kA (IEC 60898-1) / 50 kA (IEC 60947-2). Active production. Sourced to order. Request RFQ.","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":"5SY7401-7","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 15kA, 4-pole, C, 1A, 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","Energy Limitation Class":"3","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":"C","according to EN 60898 rated value":"15 kA","according to IEC 60947-2 rated value":"50 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":"1.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7fcb4d846a5e7163b389f2aceae7a908.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=176744&mlfb=5SY7401-7"},"ai":{"faq":[{"question":"Will 5SY7401-7 drop into a panel specified around 5SY4304-7CV?","answer":"Both are 4-pole SENTRON MCBs on a 4 MW DIN-rail footprint, so the mechanical fit is the same. The difference is in the trip curve and breaking capacity — the 5SY7401-7 is a C-curve with higher interrupting ratings (15/50 kA vs the 5SY4304-7CV's lower values). Verify the downstream coordination study before swapping; the physical swap is straightforward."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7401-7","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/5SY7401-7 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}}