{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4402-7KK11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4402-7KK11","canonicalUrl":"https://aoctrl.com/siemens/5SY4402-7KK11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4402-7KK11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4402-7KK11, 4-pole miniature circuit breaker, C-curve, 2 A rated, 10 kA (EN 60898) / 35 kA (IEC 60947-2) breaking capacity, IP20, for railway applications.","salesMarkdown":"## What the dual breaking capacity means for your panel The Siemens 5SY4402-7KK11 is a SENTRON miniature circuit breaker (MCB) carrying two official breaking-capacity ratings: 10 kA per EN 60898 and 35 kA per IEC 60947-2. The EN 60898 figure governs residential and light commercial installations where the prospective fault current is known to stay under 10 kA. ## C-curve and thermal derating — real-world trip behaviour Rated 2 A at 35 °C ambient, the C-curve (tripping characteristic class C) means magnetic release occurs between 5 and 10 times rated current — so between 10 A and 20 A for a fast short-circuit trip. Above 35 °C, the thermal element derates: 1.9 A at 40 °C, 1.85 A at 45 °C, 1.8 A at 50 °C, 1.75 A at 55 °C, and 1.7 A at 60 °C.","metaTitle":"Siemens 5SY4402-7KK11 SENTRON MCB, 4P C-curve 2 A, 10/35 kA","metaDescription":"Siemens 5SY4402-7KK11 SENTRON 4-pole miniature circuit breaker, C-curve, 2 A rated. Dual breaking capacity: 10 kA (EN 60898) / 35 kA (IEC 60947-2). Active production. Quoted to ord","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","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":"2 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":"4P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 35 °C / rated value":"2 A","at 40 °C / rated value":"1.9 A","at 45 °C / rated value":"1.85 A","at 50 °C / rated value":"1.8 A","at 55 °C / rated value":"1.75 A","at 60 °C / rated value":"1.7 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"35 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=160047&mlfb=5SY4402-7KK11","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4402-7KK11/alternatives.json"},"ai":{"faq":[{"question":"What is 5SY4402-7KK11's listed depth (76 mm) on this component line?","answer":"The overall depth is 76 mm; the installation depth (behind the panel face) is 70 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4402-7KK11","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/5SY4402-7KK11 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}}