{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7225-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7225-6","canonicalUrl":"https://aoctrl.com/siemens/5SY7225-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7225-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7225-6, 2-pole miniature circuit breaker, B characteristic, 25 A (35 °C), 400 V AC, 15/25 kA breaking capacity.","salesMarkdown":"The Siemens 5SY7225-6 is a 2-pole miniature circuit breaker from the SENTRON family, rated 25 A at 35 °C and 400 V AC with a B tripping characteristic. That 25 kA rating under the industrial standard gives you headroom for higher-fault installations — it safely interrupts a bolted fault up to 25 kA without welding the contacts or cascading upstream. ## Thermal derating and installation The 25 A rating is at 35 °C ambient. At 40 °C it's 23.48 A, at 50 °C it's 21.85 A, and at 60 °C it's 20.1 A. It's 2 modular units wide (36 mm), 90 mm tall, and 76 mm deep — standard footprint for a 2-pole MCB in a distribution board. IP20 with conductors connected is standard for a DIN-rail device; the enclosure provides the washdown protection. The SENTRON 5SY7 series covers a wide range of current ratings and pole configurations. If you're looking at a different B-curve 2-pole unit in the same family, the footprint and terminal layout are consistent across the range — panel cutouts and wiring don't need rework.","metaTitle":"Siemens 5SY7225-6 SENTRON MCB, 2P B-Char 25A 400V AC","metaDescription":"Siemens 5SY7225-6 SENTRON miniature circuit breaker, 2-pole, B-curve, 25 A at 35 °C, 400 V AC. 15 kA (EN 60898) / 25 kA (IEC 60947-2). Current production. Quoted to order against R","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY7225-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 15kA, 2-pole, B, 25A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","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":"400 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Number Of Poles / Note":"2P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 35 °C / rated value":"25 A","at 40 °C / rated value":"23.48 A","at 45 °C / rated value":"22.68 A","at 50 °C / rated value":"21.85 A","at 55 °C / rated value":"21 A","at 60 °C / rated value":"20.1 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"15 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"25 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/061f5fa94bf8289d631e6caf0c17843a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=382709&mlfb=5SY7225-6"},"ai":{"faq":[{"question":"Where can I buy 5SY7225-6 and get a price?","answer":"The 5SY7225-6 is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the breaking capacity of 5SY7225-6?","answer":"15 kA per EN 60898 and 25 kA per IEC 60947-2. The 25 kA figure under the industrial standard gives you headroom for higher-fault installations."},{"question":"What compliance documentation does Siemens provide for 5SY7225-6?","answer":"The 5SY7225-6 carries the SENTRON brand and is designed to EN 60898 and IEC 60947-2. Standard Siemens documentation includes a CE declaration, RoHS/REACH compliance data, and the product datasheet with the full spec table."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7225-6","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/5SY7225-6 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}}