{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4401-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4401-6","canonicalUrl":"https://aoctrl.com/siemens/5SL4401-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4401-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4401-6, 4-pole miniature circuit breaker, B-curve, 1 A rated current, 10 kA breaking capacity per EN 60898 / IEC 60947-2, 400 V AC.","salesMarkdown":"## Siemens 5SL4401-6 — 4-pole B-curve MCB at 1 A, 10 kA The 400 V AC rated supply voltage and 440 V AC multi-phase maximum suit it for three-phase distribution panels where each pole protects a phase or neutral. The B-curve means the magnetic trip operates at 3 to 5 times rated current (3–5 A for this 1 A unit), so it is sized for resistive and lighting loads with low inrush — not motor or transformer circuits where a C- or D-curve would be needed. The 1 A rating is at 30 °C ambient; at 40 °C it derates to 0.96 A, at 55 °C to 0.9 A — factor this into continuous load sizing if the enclosure runs warm. The 4-pole configuration (4P) switches all four conductors — three phases plus neutral — with no separate neutral pole switching (the product function confirms neutral conductor switching is not provided). This is standard for three-phase final circuits where the neutral is switched with the phases. The 72 V DC maximum rating per pole means it can also protect DC control circuits up to that voltage, though the primary application is AC. Halogen-free and silicon-free construction meets the material restrictions common in rail, marine, and data-center installations where outgassing during a fault must be minimized. The mechanical service life of 10 000 operating cycles is typical for an MCB in a distribution panel where it sees infrequent manual switching.","metaTitle":"Siemens 5SL4401-6 SENTRON MCB, 4P B-curve 1A 10kA","metaDescription":"Siemens 5SL4401-6 SENTRON miniature circuit breaker, 4-pole, 1 A, B-curve, 10 kA breaking capacity per EN 60898. 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":"5SL4401-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 4-pole, B, 1 A","Halogen-Free":"Yes","Silicon-Free":"Yes","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":"2","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"1 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Number Of Poles / Note":"4P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"1 A","at 40 °C / rated value":"0.96 A","at 45 °C / rated value":"0.94 A","at 55 °C / rated value":"0.9 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"4","Tripping Characteristic Class":"B","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","acc. to IEC 60947-2 / rated value":"10 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","Influence Of The Surrounding Temperature":"+55 °C, max. 95% humidity","with multi-phase operation / at AC / maximum":"440 V","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9100e56a614e6ff3a5b83a05355de6a8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=34657&mlfb=5SL4401-6"},"ai":{"faq":[{"question":"Where can I buy the 5SL4401-6 and get a price?","answer":"The 5SL4401-6 is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm availability and current pricing — no stock or price figures are published here."},{"question":"What is the 5SL4401-6's depth and width for panel layout?","answer":"The 5SL4401-6 has a depth of 76 mm and a width of 72 mm (4 modular units). The installation depth is 70 mm. These dimensions fit standard DIN-rail distribution boards."},{"question":"What compliance documentation does Siemens provide for the 5SL4401-6?","answer":"The 5SL4401-6 carries approvals per EN 60898 and IEC 60947-2 for breaking capacity. It is halogen-free and silicon-free. The manufacturer provides CE, UKCA, and other regional declarations; specific documentation (RoHS, REACH, UL) should be requested at quote time as it varies by production batch."},{"question":"Will the 5SL4401-6 drop into a panel specified around the 5SL3205-7MB?","answer":"No — the 5SL3205-7MB is a 2-pole unit, while the 5SL4401-6 is 4-pole. The width differs (2 MW vs 4 MW), so it will not fit the same DIN-rail footprint without rewiring and panel re-layout. They are not drop-in interchangeable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4401-6","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/5SL4401-6 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}}