{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4205-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4205-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4205-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4205-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4205-8CC, miniature circuit breaker, D tripping characteristic, 0.5 A rated current, 2-pole, 10 kA breaking capacity per EN 60898, 2 modular width units.","salesMarkdown":"Breaking capacity is 10 kA per EN 60898, with a secondary 5 kA rating per UL 1077 and CSA C22.2 No. 235 for North American acceptance. ## Thermal derating and ambient limits The 0.5 A rating holds at 35 °C ambient. At 40 °C it derates to 0.46 A, at 45 °C to 0.44 A, at 50 °C to 0.41 A, and at 55 °C to 0.39 A. The maximum ambient for operation is 75 °C, with a minimum of -40 °C. Humidity limits are 95% RH up to 55 °C, tapering to 35% RH at 75 °C. Dimensions: 36 mm wide (2 MW), 90 mm high, 76 mm deep, with an installation depth of 70 mm behind the panel face. Mounting position is any orientation. The quick assembly system snaps onto standard DIN rail. Both top and bottom terminals are combined (line and load can land on either side). Touch protection is built in. The breaker is sealable, halogen-free, and silicon-free — relevant for clean-room or food-bev panel specs where outgassing matters. Vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz.","metaTitle":"Siemens 5SY4205-8CC SENTRON MCB, D Curve, 0.5 A, 2-Pole","metaDescription":"Siemens 5SY4205-8CC SENTRON miniature circuit breaker, D tripping characteristic, 0.5 A rated, 2-pole, 10 kA breaking capacity per EN 60898. Current lifecycle stage. Quoted to orde","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":"5SY4205-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 2-pole, D, 0.5 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","acc. to IEC 81346-2":"F","at AC / rated value":"0.5 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","acc. to DIN EN 61346-2":"F","at 35 °C / rated value":"0.5 A","at 40 °C / rated value":"0.46 A","at 45 °C / rated value":"0.44 A","at 50 °C / rated value":"0.41 A","at 55 °C / rated value":"0.39 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"D","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","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 AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","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","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/f6b25bce601df499e407d9b7070a5638.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=192954&mlfb=5SY4205-8CC"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY4205-8CC?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm position."},{"question":"What is 5SY4205-8CC's listed depth on this component line?","answer":"The overall depth is 76 mm, with an installation depth of 70 mm behind the panel face."},{"question":"What compliance documentation does this brand provide for 5SY4205-8CC?","answer":"The breaker carries a 10 kA breaking capacity per EN 60898 and a 5 kA rating per UL 1077 and CSA C22.2 No. 235. It is halogen-free and silicon-free, which supports RoHS/REACH compliance declarations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4205-8CC","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/5SY4205-8CC 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}}