{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4163-6KK11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4163-6KK11","canonicalUrl":"https://aoctrl.com/siemens/5SY4163-6KK11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4163-6KK11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4163-6KK11, 1-pole miniature circuit breaker, B-curve, 63 A, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 18 mm width, IP20.","salesMarkdown":"## 63 A B-curve MCB for railway and industrial panels The part is designed for railway applications per the manufacturer's designation, and it is rated for overvoltage category III with pollution degree 3 — meaning it is suitable for fixed installations inside enclosures where transient overvoltages from the supply are present and the environment may have conductive dust or condensation. The IP20 rating applies with conductors connected, so the terminals themselves are finger-safe but the unit requires enclosure protection against moisture. ## Temperature derating and mounting The 63 A rating holds at 35 °C ambient. Above that, the continuous current must be derated: 59.16 A at 40 °C, 57.14 A at 45 °C, 55.06 A at 50 °C, 52.92 A at 55 °C, and 50.65 A at 60 °C. The fastening method is the quick-assembly system — it snaps onto the rail and can be removed with a screwdriver without disturbing adjacent units.","metaTitle":"Siemens 5SY4163-6KK11 SENTRON MCB, 1P B-Curve 63A, 10kA/15kA","metaDescription":"Siemens 5SY4163-6KK11 SENTRON miniature circuit breaker, 1-pole, B-curve, 63 A rated. Breaking capacity 10 kA per EN 60898, 15 kA per IEC 60947-2. Current lifecycle stage, sourced","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"1","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":"63 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"For railway applications","Number Of Poles / Note":"1P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 35 °C / rated value":"63 A","at 40 °C / rated value":"59.16 A","at 45 °C / rated value":"57.14 A","at 50 °C / rated value":"55.06 A","at 55 °C / rated value":"52.92 A","at 60 °C / rated value":"50.65 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"1","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"15 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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=435564&mlfb=5SY4163-6KK11","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4163-6KK11/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 5SY4163-6KK11?","answer":"The part is halogen-free and silicon-free per the manufacturer's specifications. It carries the SENTRON brand designation and is designed for railway applications. Standard compliance documentation includes the manufacturer's declaration of conformity to relevant IEC/EN standards; consult the product documentation for specific RoHS, REACH, and UL status."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4163-6KK11","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/5SY4163-6KK11 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}}