{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4114-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4114-8","canonicalUrl":"https://aoctrl.com/siemens/5SY4114-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4114-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4 series, miniature circuit breaker, 1-pole, D tripping characteristic, 0.3 A rated current, 10 kA (EN 60898) / 35 kA (IEC 60947-2) breaking capacity.","salesMarkdown":"## 0.3 A D-curve MCB for short-circuit protection of inductive or high-inrush loads The Siemens 5SY4114-8 is a 1-pole SENTRON miniature circuit breaker with a D tripping characteristic, rated 0.3 A at 400 V AC. At DC it's rated 72 V maximum with 15 kA interrupting capacity per IEC 60947-2. IP20 with conductors connected, so it's enclosed within a panel but not rated for wet environments. Sealable, touch-proof terminals. Rated for overvoltage category III. Complies with EN 60898 (10 kA), IEC 60947-2 (35 kA AC, 15 kA DC), and UL 1077 / CSA C22.2 No. 235 (5 kA AC). Halogen-free and silicon-free construction. Suitability for operation noted as mechanical engineering and industry.","metaTitle":"Siemens 5SY4114-8 SENTRON MCB, 1P, D Curve, 0.3 A, 10 kA","metaDescription":"Siemens 5SY4114-8 SENTRON miniature circuit breaker, 1-pole, D tripping characteristic, 0.3 A rated current, 10 kA breaking capacity per EN 60898. Current production, available to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"18 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"1","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +70 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Number of width units":"1","Number of poles / Note":"1P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY4","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"0.3 A","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"35 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","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"440 V","Mechanical service life (switching cycles) / typical":"10 000","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in","AWG number / as coded connectable conductor cross section":"18 ... 4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$67.60","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dba4544b48886bef2d45ed7d94f5a71d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=220662&mlfb=5SY4114-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4114-8/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SY4114-8 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What is the breaking capacity of the 5SY4114-8?","answer":"10 kA per EN 60898 for general use, 35 kA per IEC 60947-2 for industrial panels, and 15 kA at DC per IEC 60947-2."},{"question":"What conductor sizes does the 5SY4114-8 accept?","answer":"Solid or stranded conductors from 0.75 to 35 mm² at both top and bottom terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4114-8","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/5SY4114-8 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}}