{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4204-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4204-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4204-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4204-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4204-8CC miniature circuit breaker, D tripping characteristic, 4 A rated, 2-pole, 10 kA breaking capacity per EN 60898, 50/60 Hz AC.","salesMarkdown":"The 5SY4204-8CC is a 2-pole SENTRON miniature circuit breaker rated 4 A with a D tripping characteristic, meaning it's built for loads with high inrush — motor starters, small transformers, or solenoid banks — where the magnetic trip needs to ride through the start surge without nuisance tripping. The 10 kA breaking capacity per EN 60898 tells you it can safely interrupt a fault up to that level at 440 V AC, which covers most industrial panel secondary circuits. At 40 °C ambient the continuous rating derates to 3.76 A, so if your panel runs hot, factor that in at the BOM stage. Snaps onto DIN rail via the quick assembly system — 2 modular width units (36 mm wide), 76 mm deep, 90 mm tall. Mounts in any position, which helps when you're squeezing it into a crowded gland plate. IP20 with connected conductors is standard for enclosed panel gear.","metaTitle":"Siemens 5SY4204-8CC SENTRON MCB, D-curve, 4 A, 2-pole, 10 kA","metaDescription":"Siemens 5SY4204-8CC SENTRON miniature circuit breaker, 4 A, D tripping characteristic, 2-pole, 10 kA breaking capacity per EN 60898. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY4204-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 2-pole, D, 4 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","at AC / rated value":"4 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","according to EN 61346-2":"F","at 35 °C / rated value":"4 A","at 40 °C / rated value":"3.76 A","at 45 °C / rated value":"3.64 A","at 50 °C / rated value":"3.5 A","at 55 °C / rated value":"3.37 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"D","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"10 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","Value Range / Of The Supply Voltage Frequency":"50/60 Hz","Product Component / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","vibration resistance / according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3d40df7ab9606d18f496aa87daf1f21e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=201740&mlfb=5SY4204-8CC"},"ai":{"faq":[{"question":"What does the D tripping characteristic mean for this 4 A breaker?","answer":"The D-curve means the magnetic trip activates at 10 to 20 times the rated current (40–80 A instantaneous), so it's selected for loads with high inrush like small motors, transformers, or discharge lamps — not for general lighting or resistive loads where a B or C curve would suffice."},{"question":"Will 5SY4204-8CC drop into a panel specified around a 5SY7210-7CC?","answer":"It shares the same 2-pole DIN-rail footprint (36 mm wide, 76 mm deep), so mechanically it fits. But the 5SY4204-8CC is a D-curve 4 A breaker, while the 5SY7210-7CC is a different characteristic and rating — verify the load's inrush profile and continuous current before swapping."},{"question":"Where can I buy 5SY4204-8CC and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4204-8CC","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/5SY4204-8CC 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}}