{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7114-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7114-8","canonicalUrl":"https://aoctrl.com/siemens/5SY7114-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7114-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7114-8, 1-pole miniature circuit breaker, D tripping characteristic, 0.3 A rated current, 15 kA (EN 60898) / 50 kA (IEC 60947-2) breaking capacity, 1 MWU, IP20.","salesMarkdown":"## Siemens 5SY7114-8 — SENTRON D-curve MCB, 0.3 A Tripping characteristic class D. At 0.3 A, this is a control-circuit or instrumentation feeder. At DC per IEC 60947-2 it still holds 15 kA. ## Fit, mounting, and panel integration Snap-on DIN rail mount, 18 mm width (1 modular width unit), 76 mm depth, 90 mm height. Installation depth is 70 mm. Mounting position is any — horizontal, vertical, upside down, doesn't matter for the thermal-magnetic trip. The quick assembly system (fastening method) means it clips onto the rail and engages the busbar without tools. Overvoltage category III and degree of pollution 3 confirm it's rated for fixed installations inside a distribution board or control cabinet. The 0.3 A rating holds at 35 °C. At 45 °C it derates to 0.27 A, at 50 °C to 0.26 A, at 55 °C to 0.25 A, and at 60 °C to 0.24 A. Operating range is -40 °C to 75 °C, with humidity limits: 95% up to 55 °C, 55% up to 70 °C, 35% up to 75 °C. Current production. Standard catalog SKU in the SENTRON 5SY series.","metaTitle":"Siemens 5SY7114-8 SENTRON MCB, 1P, D-curve, 0.3 A, 15/50 kA","metaDescription":"Siemens 5SY7114-8 SENTRON miniature circuit breaker, 1-pole D-curve, 0.3 A rated current, 15 kA (EN 60898) / 50 kA (IEC 60947-2) breaking capacity. Current production, sourced to o","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","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"1","Type Of Voltage":"AC","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":"0.3 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Number Of Poles / Note":"1P","acc. to DIN EN 61346-2":"F","at 35 °C / rated value":"0.3 A","at 45 °C / rated value":"0.27 A","at 50 °C / rated value":"0.26 A","at 55 °C / rated value":"0.25 A","at 60 °C / rated value":"0.24 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"1","Tripping Characteristic Class":"D","acc. to EN 60898 / rated value":"15 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"50 kA","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","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","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 Function / 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 (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/61c7093536539eda2386714808ca8ae5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=38192&mlfb=5SY7114-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7114-8/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7114-8","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/5SY7114-8 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}