{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4104-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4104-6","canonicalUrl":"https://aoctrl.com/siemens/5SY4104-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4104-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4104-6, 1-pole miniature circuit breaker, B-curve, rated 10 kA per EN 60898-1 / 35 kA per IEC 60947-2, 5 kA per UL 1077, 18 mm wide, IP20.","salesMarkdown":"## Product identity and certification scope It carries dual-standard certification to IEC / EN 60898-1 and IEC / EN 60947-2, plus UL 1077 / CSA C22.2 No. 235 — meaning it is accepted in European, UK, and North American installations under a single order code. ## Breaking capacity — the real-world headroom The 10 kA rating per EN 60898-1 covers the standard domestic and light-commercial fault level. At 60 V DC it still holds 15 kA per IEC 60947-2. For UL 1077 listings the rating is 5 kA — adequate for North American supplementary protection applications. ## B-curve tripping and application fit It is not intended for motor-starting duty (C or D curve would be specified for that). The 1-pole form factor at 18 mm width (1 MW) fits a standard DIN-rail enclosure, and the quick-assembly system allows tool-less snap-on mounting in any orientation. Combined terminals at both top and bottom accept supply from any direction — no need to orient the breaker for top-feed only. IP20 protection applies with connected conductors; the terminals are finger-safe only when wired.","metaTitle":"5SY4104-6 SENTRON MCB, 1P B-curve, 10 kA IEC, 35 kA IEC 6094","metaDescription":"Siemens 5SY4104-6 SENTRON miniature circuit breaker, 1-pole, B-curve, 10 kA per EN 60898-1, 35 kA per IEC 60947-2, 5 kA UL 1077. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SY4104-6","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 230/400 V 10kA, 1-pole, B, 4A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","Number Of Poles":"1","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":"1","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"B","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":"1.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/648e526dd31d9138e7d835122793f9a8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=12741&mlfb=5SY4104-6"},"ai":{"faq":[{"question":"What breaking capacity does 5SY4104-6 have at 400 V AC?","answer":"10 kA per EN 60898-1 and 35 kA per IEC 60947-2 at 400 V AC. The higher figure is the one that governs industrial panel coordination."},{"question":"What certifications does 5SY4104-6 carry?","answer":"It is certified to IEC / EN 60898-1, IEC / EN 60947-2, and UL 1077 / CSA C22.2 No. 235 — covering European, UK, and North American installations."},{"question":"Will 5SY4104-6 drop into a panel specified around 5SY4116-6CC?","answer":"Both are 1-pole SENTRON MCBs with the same 18 mm width and DIN-rail mounting. The 5SY4116-6CC is a C-curve variant; the 5SY4104-6 is B-curve. If the panel was designed for a C-curve breaker to handle motor or transformer inrush, substituting a B-curve may cause nuisance tripping. Mechanical fit is identical; electrical coordination must be verified."},{"question":"Where can I buy 5SY4104-6?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the width of 5SY4104-6?","answer":"18 mm, which is 1 modular width (1 MW) on a standard DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4104-6","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/5SY4104-6 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}}