{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8105-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8105-7","canonicalUrl":"https://aoctrl.com/siemens/5SY8105-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8105-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8105-7, 1-pole miniature circuit breaker, 0.5 A rated current, C tripping characteristic, 70 kA breaking capacity at 400 V AC per IEC 60947-2, 18 mm width.","salesMarkdown":"The 5SY8105-7: At 70 kA (IEC 60947-2), this breaker sits well above the typical domestic MCB rating (6-10 kA). The DC rating is 15 kA per IEC 60947-2, which covers battery banks and DC bus applications. Under UL 1077 and CSA C22.2 No. 235 it's rated 5 kA — that's the supplementary protector rating for North American panels. Width is 18 mm, depth 76 mm, height 90 mm. Installation depth is 70 mm. Mounts on standard DIN rail, any position. ## Derating and environmental limits Rated 0.5 A at 45 °C ambient. At 50 °C it derates to 0.48 A, at 55 °C to 0.47 A. Humidity tolerance: 95% RH up to 55 °C, 55% RH up to 70 °C, 35% RH up to 75 °C. Vibration resistance per IEC 60068-2-6: ±1 mm at 5-25 Hz, 50 m/s² at 25-150 Hz. Halogen-free and silicon-free construction — important for sensitive environments like semiconductor fabs or medical device manufacturing where outgassing can cause corrosion.","metaTitle":"Siemens 5SY8105-7 SENTRON MCB, 0.5A C-Curve 1P 70kA","metaDescription":"Siemens 5SY8105-7 SENTRON miniature circuit breaker, 0.5A rated, C characteristic, 1-pole, 70kA breaking capacity at 400V AC. Current lifecycle stage: active. Sourced to order agai","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":"5SY8105-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 230/400 V D=70 mm KA according to EN 60947-2, 1P, C0.5","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","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 45 °C / rated value":"0.5 A","at 50 °C / rated value":"0.48 A","at 55 °C / rated value":"0.47 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"70 kA","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","at DC / acc. to IEC 60947-2 / rated value":"15 kA","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/679adf8655a27ededf169800eb1a6b5d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=367826&mlfb=5SY8105-7"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY8105-7","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/5SY8105-7 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}}