{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8415-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8415-7","canonicalUrl":"https://aoctrl.com/siemens/5SY8415-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8415-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8415-7, 4-pole miniature circuit breaker, C-curve, 1.6 A rated at 45 °C, 70 kA breaking capacity at 400 V AC per IEC 60947-2, 4 MW wide.","salesMarkdown":"## Siemens 5SY8415-7 SENTRON 4-pole MCB, C-curve, 1.6 A The Siemens 5SY8415-7 is a 4-pole miniature circuit breaker from the SENTRON series, rated 1.6 A at 45 °C with a C-curve tripping characteristic. For a 1.6 A rating, that means magnetic trip between 8 A and 16 A. The 76 mm depth includes the terminal arc; installation depth is 70 mm. ## Breaking capacity and standards compliance The 70 kA rating at 400 V AC per IEC 60947-2 is the headline figure for industrial panels — it means the breaker can safely interrupt a fault current up to 70,000 A without welding contacts or rupturing the case. For UL 1077 / CSA C22.2 No. 235 listed applications, the interrupting capacity is 5 kA at 400 V AC; this is a supplemental protector rating, not a branch-circuit rating per UL 489. The DC rating per IEC 60947-2 is 15 kA, relevant for battery-backed DC bus or UPS output circuits. The 1.6 A rating is at 45 °C ambient. At 50 °C it derates to 1.57 A, at 55 °C to 1.53 A. The breaker can operate from -40 °C to 75 °C, with humidity limits of 95% at 55 °C, 55% at 70 °C, and 35% at 75 °C. For a BOM freeze or second-source review, the closest functional peer within the SENTRON 5SY series is the 5SY6332-7CC — a 3-pole C-curve breaker with a different current rating and pole count. The 5SY8415-7 is 4-pole; a panel wired for 4-pole cannot accept a 3-pole unit without rewiring the neutral leg. The 5SY4304-7CV and 5SY6602-8 are also in the same family but differ in poles and curve. Always verify the pole count, rating, and curve before substituting.","metaTitle":"Siemens 5SY8415-7 SENTRON MCB, 4P C-curve 1.6A, 70kA","metaDescription":"Siemens 5SY8415-7 SENTRON miniature circuit breaker, 4-pole, C-curve, 1.6A rated at 45°C, 70kA breaking capacity at 400V AC per IEC 60947-2. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY8415-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V D=70 mm 25 kA according to EN 60947-2, 4P, C1.6","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","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":"4P","acc. to DIN EN 61346-2":"F","at 45 °C / rated value":"1.6 A","at 50 °C / rated value":"1.57 A","at 55 °C / rated value":"1.53 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"70 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/0df28861a871a164b85ae110fca1974d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1931&mlfb=5SY8415-7"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY8415-7","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/5SY8415-7 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}}