{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4504-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4504-8","canonicalUrl":"https://aoctrl.com/siemens/5SY4504-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4504-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4504-8, miniature circuit breaker, 2-pole (1P+N), 4 A, D characteristic, 10 kA per EN 60898 / 35 kA per IEC 60947-2, IP20.","salesMarkdown":"## Derating and integration Rated 4 A at 35 °C ambient, but the published derating curve drops it to 3.22 A at 60 °C — a 20% reduction. In a crowded DIN-rail enclosure with multiple breakers side by side, the internal temperature often exceeds 50 °C, so size the load circuit against the derated figure, not the 35 °C nameplate. The 2-module-width (36 mm) body snaps onto any standard DIN rail; the quick-assembly system lets you gang busbars without individual wiring. IP20 with conductors connected — fine for a dry enclosure, not for washdown zones. Listed as current production. The 5SY4504-8 carries dual certification: IEC/EN 60898-1 for general-distribution MCB duty and IEC/EN 60947-2 plus UL 1077 for industrial control-panel use. Halogen-free and silicon-free construction. Neutral conductor switching is integrated — the 1P+N design breaks both line and neutral, which some local codes require on final subcircuits.","metaTitle":"Siemens 5SY4504-8 SENTRON MCB, 4A D Curve, 10kA/35kA, 2-Pole","metaDescription":"Siemens 5SY4504-8 SENTRON miniature circuit breaker, 4 A rated, D tripping characteristic, 10 kA (EN 60898) / 35 kA (IEC 60947-2), 2-pole 1P+N, IP20. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY4504-8","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 V 10kA, 1+N-pole, D, 4A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"4 A","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","at 35 °C rated value":"4 A","at 40 °C rated value":"3.76 A","at 45 °C rated value":"3.63 A","at 50 °C rated value":"3.5 A","at 55 °C rated value":"3.36 A","at 60 °C rated value":"3.22 A","according to EN 61346-2":"F","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"Yes","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","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 single-phase operation at AC rated value":"250 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/f59ae0bb0ef2a60049267385e221d226.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=282195&mlfb=5SY4504-8"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY4504-8?","answer":"10 kA per EN 60898 and 35 kA per IEC 60947-2. The higher 35 kA rating applies when the breaker is applied under the industrial standard, which is the figure to use for SCCR calculations on a control-panel nameplate."},{"question":"Where can I buy the 5SY4504-8?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 5SY4504-8 drop into a panel specified for 5SY4104-7CV?","answer":"Both are 2-module (36 mm wide) SENTRON MCBs on the same DIN-rail footprint, so physical fit is identical. The difference is the tripping characteristic: 5SY4504-8 is a D curve (10–20× In), while 5SY4104-7CV is a different curve — verify the load's inrush profile before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4504-8","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/5SY4504-8 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}}