{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6225-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6225-6","canonicalUrl":"https://aoctrl.com/siemens/5SY6225-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6225-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6225-6 miniature circuit breaker, 2-pole, 25 A, tripping characteristic B, 6 kA per IEC 60898 / 15 kA per IEC 60947-2, 2 MW, IP20.","salesMarkdown":"## Siemens 5SY6225-6 SENTRON 2-Pole MCB, 25 A Type B Breaking capacity is 6 kA per IEC/EN 60898-1 and 15 kA per IEC/EN 60947-2 / UL1077, so it covers most panelboard and sub-distribution applications up to those fault levels without needing an upstream current-limiting fuse. Mounts in any position; terminals accept combined top/bottom feed, and the unit is sealable for tamper-proofing after commissioning. ## Thermal derating and environment Rated 25 A at 35 °C; derates to 23.48 A at 40 °C, 22.68 A at 45 °C, 21.85 A at 50 °C, and 21 A at 55 °C — so in a warm panel the actual continuous current you can carry is lower than the label rating. Ambient range -40 °C to 75 °C; humidity limits apply: max 95% up to 55 °C, tapering to 35% at 75 °C. Halogen-free and silicon-free construction.","metaTitle":"Siemens 5SY6225-6 SENTRON MCB, 2-Pole 25A Type B, 6/15 kA","metaDescription":"Siemens 5SY6225-6 SENTRON miniature circuit breaker, 2-pole, 25 A, tripping characteristic B, 6 kA (IEC 60898) / 15 kA (IEC 60947-2). Current production. Sourced to order.","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","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","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","at AC / rated value":"25 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Energy Limitation Class":"3","according to EN 61346-2":"F","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","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"6 kA","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","Value Range / Of The Supply Voltage Frequency":"50/60 Hz","at DC / according to IEC 60947-2 / rated value":"15 kA","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","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=415766&mlfb=5SY6225-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY6225-6/alternatives.json"},"ai":{"faq":[{"question":"What is the physical size of 5SY6225-6?","answer":"Width 36 mm (2 modular units), depth 76 mm, height 90 mm, installation depth 70 mm."},{"question":"What compliance documentation does 5SY6225-6 carry?","answer":"Designed to IEC/EN 60898-1, IEC/EN 60947-2, and UL1077. Halogen-free and silicon-free. Overvoltage category III, pollution degree 3."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6225-6","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/5SY6225-6 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}}