{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4204-7KK11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4204-7KK11","canonicalUrl":"https://aoctrl.com/siemens/5SY4204-7KK11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4204-7KK11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4204-7KK11, miniature circuit breaker, 2-pole, C tripping characteristic, 4 A rated current, 10 kA breaking capacity per EN 60898, 35 kA per IEC 60947-2.","salesMarkdown":"The C characteristic handles moderate inrush — typical for motor starters, transformers, or lighting banks — without nuisance tripping on start-up. The 4 A rating holds at 35 °C ambient. Above that, derate linearly: 3.76 A at 40 °C, 3.63 A at 45 °C, 3.5 A at 50 °C, 3.36 A at 55 °C, and 3.22 A at 60 °C (–). In a sealed, uncooled enclosure at 50 °C, expect the breaker to carry 3.5 A continuous — plan your load margin accordingly. The energy limitation class is 3, which means it lets through less let-through energy (I²t) than class 1 or 2 breakers, reducing stress on downstream components during a fault. ## Panel integration Snaps onto DIN rail via the quick assembly system and occupies 2 modular width units — 36 mm wide, 90 mm tall, 76 mm deep, with an installation depth of 70 mm. Mountable in any position.","metaTitle":"Siemens 5SY4204-7KK11 SENTRON MCB, 2P C 4A, 10kA EN 60898","metaDescription":"Siemens 5SY4204-7KK11 SENTRON miniature circuit breaker, 2-pole, C-curve, 4 A rated, 10 kA (EN 60898) / 35 kA (IEC 60947-2). Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"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":"DIN EN60898-1","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","at AC rated value":"4 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"For railway applications","at 35 °C rated value":"4 A","at 40 °C rated value":"3.76 A","at 45 °C rated value":"3.63 A","at 50 °C rated value":"3.5 A","at 55 °C rated value":"3.36 A","at 60 °C rated value":"3.22 A","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"10 kA","according to IEC 60947-2 rated value":"35 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","at DC according to IEC 60947-2 rated value":"15 kA","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"72 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.3 W"}},"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=481083&mlfb=5SY4204-7KK11","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4204-7KK11/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY4204-7KK11?","answer":"It is rated 10 kA per DIN EN60898-1 and 35 kA per IEC 60947-2. The higher IEC figure applies when the breaker is used in industrial distribution per that standard."},{"question":"How do I get pricing and availability for 5SY4204-7KK11?","answer":"Submit an RFQ through this listing. The part is sourced to order; current pricing and stock position are confirmed at quote time."},{"question":"Will 5SY4204-7KK11 drop into a panel specified for 5SY4140-7?","answer":"Both are 2-pole SENTRON MCBs on the same DIN-rail footprint, but the 5SY4140-7 is a higher-current variant. Verify the load current and cable sizing before substitution — the physical fit is the same, but the protection rating differs."},{"question":"What compliance documentation does 5SY4204-7KK11 carry?","answer":"It is designed to DIN EN60898-1 and IEC 60947-2. The housing is halogen-free and silicon-free. For specific RoHS/REACH/UL declarations, request the manufacturer's compliance certificate with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4204-7KK11","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/5SY4204-7KK11 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}}