{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4514-7CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4514-7CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4514-7CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4514-7CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4514-7CV, MCB, 1+N, C-curve, 0.3 A, 15 kA breaking capacity per IEC 60947-2, 250 V AC, 2 MW, IP20.","salesMarkdown":"The Siemens 5SY4514-7CV is a 1+N miniature circuit breaker (MCB) in the 5SY4 series, rated 0.3 A with a C tripping characteristic and a 15 kA breaking capacity per IEC 60947-2. It switches the neutral conductor and fits a 2-module-width (36 mm) DIN-rail slot — common in European panel builds for lighting and small motor circuits where short-circuit protection up to 15 kA at 250 V AC is needed. The 0.3 A rated current (at 35 °C, per) means this MCB protects a very low-current branch — think control transformers, signal supplies, or small relay coils. Derate to 0.28 A at 40 °C and 0.24 A at 55 °C; if your panel ambient runs hot, the actual trip threshold shifts. The 1+N design switches both line and neutral, with the neutral pole opening after the line pole — a requirement in some national wiring rules for final circuits. The 2-pole physical package takes up 36 mm (2 MW) on the DIN rail. ## Deployment context The 76 mm depth plus 70 mm installation depth means it sits flush with standard distribution board covers — no extra gland-plate clearance needed.","metaTitle":"Siemens 5SY4514-7CV MCB, 0.3 A, 1+N, C-Curve, 15 kA","metaDescription":"Siemens 5SY4514-7CV miniature circuit breaker, 0.3 A rated, 1+N poles, C tripping characteristic, 15 kA breaking capacity per IEC 60947-2. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY4514-7CV","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60947-2","description":"MCB Icu=15KA 230/400V 1P+N C0.3","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1+N","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Degree Of Pollution":"3","at AC / rated value":"0.3 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":"0.3 A","at 40 °C / rated value":"0.28 A","at 45 °C / rated value":"0.27 A","at 50 °C / rated value":"0.3 A","at 55 °C / rated value":"0.24 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"Yes","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Any","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","vibration resistance / according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","with single-phase operation / at AC / rated value":"250 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/1ef7636a75a10e7dad3458cb15060ffe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531660&mlfb=5SY4514-7CV"},"ai":{"faq":[{"question":"Where can I buy 5SY4514-7CV and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) for current availability and pricing."},{"question":"What is the rated breaking capacity of 5SY4514-7CV?","answer":"The rated breaking capacity is 15 kA per IEC 60947-2 at 250 V AC single-phase."},{"question":"Does 5SY4514-7CV switch the neutral conductor?","answer":"Yes, it has a 1+N pole design with neutral conductor switching."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4514-7CV","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/5SY4514-7CV 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}}