{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4316-8CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4316-8CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4316-8CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4316-8CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4316-8CV, 3-pole miniature circuit breaker, D tripping characteristic, 16 A rated at 35 °C, 15 kA breaking capacity per IEC 60947-2, 3 modular width units.","salesMarkdown":"The Siemens 5SY4316-8CV is a 3-pole miniature circuit breaker (MCB) with a D tripping characteristic, rated 16 A at 35 °C and delivering a 15 kA breaking capacity per IEC 60947-2. ## Derating and ambient conditions Rated current drops with ambient temperature: 14.83 A at 40 °C, 14.21 A at 45 °C, 13.6 A at 50 °C, 12.86 A at 55 °C. That's a straight derating curve — if your panel hits 50 °C internal, you're effectively running a 13.6 A breaker.","metaTitle":"Siemens 5SY4316-8CV MCB, 3P D-Curve 16A 15kA IEC 60947-2","metaDescription":"Siemens 5SY4316-8CV 3-pole MCB, D-curve, 16 A rated, 15 kA breaking capacity per IEC 60947-2. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"54 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60947-2","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Degree Of Pollution":"3","at AC / rated value":"16 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":"16 A","at 40 °C / rated value":"14.83 A","at 45 °C / rated value":"14.21 A","at 50 °C / rated value":"13.6 A","at 55 °C / rated value":"12.86 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"3","Tripping Characteristic Class":"D","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","according to IEC 60947-2 / rated value":"15 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","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","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d11895b1fd3582b752c47b8c13b53f40.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531593&mlfb=5SY4316-8CV","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4316-8CV/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY4316-8CV?","answer":"15 kA per IEC 60947-2 at 400 V AC, 50/60 Hz."},{"question":"What is the D-curve used for on this breaker?","answer":"The D tripping characteristic (10–20× In) handles high inrush loads like motors, transformers, and welding equipment without nuisance tripping on startup."},{"question":"Where can I buy 5SY4316-8CV?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4316-8CV","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/5SY4316-8CV 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}}