{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5150-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5150-6","canonicalUrl":"https://aoctrl.com/siemens/5SY5150-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5150-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5150-6, 1-pole miniature circuit breaker, B characteristic, 50 A rated current, 10 kA breaking capacity per EN 60898, 1 MW width.","salesMarkdown":"## Rated current and tripping curve — what the B-curve means on a 50 A frame B-curve means the magnetic trip activates between 3 and 5 times rated current — so on a 50 A breaker, instantaneous trip starts at 150 A and is guaranteed by 250 A. For DC circuits, the same 10 kA rating applies per EN 60898-2, with the polarity observed as noted on the device — AC supply can be connected either way, DC requires correct polarity. ## Temperature derating — the 50 A rating holds only at 35 °C ambient The 50 A rating is specified at 35 °C ambient. At 40 °C the breaker must be derated to 47.6 A, at 45 °C to 46.35 A, at 50 °C to 45.1 A, at 55 °C to 43.75 A, and at 60 °C to 42.4 A. The breaker is rated for ambient up to 75 °C and as low as -40 °C, with humidity limits of 95% up to 55 °C, 55% up to 70 °C, and 35% at 75 °C. It mounts in any position and uses a quick-assembly fastening system — clips onto the rail without tools.","metaTitle":"Siemens 5SY5150-6 SENTRON MCB, 50 A, 1P, B-Curve, 10 kA","metaDescription":"Siemens 5SY5150-6 SENTRON miniature circuit breaker, 50 A, 1-pole, B characteristic, 10 kA breaking capacity per EN 60898. Active production. Sourced to order. Request quote.","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":"5SY5150-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker Universal current 220 V DC 230/400 V AC 10kA, 1-pole, B, 50 A","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":"50 A","at DC / rated value":"220 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 35 °C / rated value":"50 A","at 40 °C / rated value":"47.6 A","at 45 °C / rated value":"46.35 A","at 50 °C / rated value":"45.1 A","at 55 °C / rated value":"43.75 A","at 60 °C / rated value":"42.4 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"universal current","at DC / acc. to EN 60898-2":"10 kA","Number Of Modular Width Units":"1","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"AC as required, observe DC polarity","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/DC","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":"250 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"5 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7a5137996ea28ff0458af02579046361.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=518144&mlfb=5SY5150-6"},"ai":{"faq":[{"question":"What is the width of 5SY5150-6 in modular units?","answer":"18 mm, which is 1 modular width unit on a standard DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5150-6","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/5SY5150-6 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}}