{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4204-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4204-7","canonicalUrl":"https://aoctrl.com/siemens/5SY4204-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4204-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4204-7, 2-pole miniature circuit breaker, C-curve, 10 kA (IEC 60898) / 35 kA (IEC 60947-2) breaking capacity, 400 V AC, 60 V DC, 2 MWU, IP20.","salesMarkdown":"It's built for panel protection in industrial control cabinets — mechanical engineering and industry applications per the manufacturer's suitability listing. ## Breaking capacity — the number that decides fit Breaking capacity is the first thing to verify when swapping an MCB into an existing panel. This 5SY4204-7 carries three ratings: 10 kA per IEC 60898-1 (the domestic / light commercial standard), 35 kA per IEC 60947-2 (the industrial standard), and 15 kA at DC per IEC 60947-2. Under UL 1077 it's rated 5 kA. If it's higher, you need a higher-rated device or a current-limiting upstream fuse. Mounting position any orientation, and the supply cord can land on either top or bottom terminals (combined terminal top and bottom). Installation depth 70 mm, overall depth 76 mm. IP20 with conductors connected — fine inside a closed panel, not for wet environments. ## Environmental and handling specs Humidity derating: max 95% RH up to 55 °C, dropping to 35% at 75 °C. Sealable — you can lock the toggle in the off position with a padlock for lockout/tagout.","metaTitle":"Siemens 5SY4204-7 SENTRON MCB, 2P C-curve, 10kA IEC 60898","metaDescription":"Siemens 5SY4204-7 SENTRON miniature circuit breaker, 2-pole, C-curve. Breaking capacity 10kA per IEC 60898, 35kA per IEC 60947-2. Active production, sourced to order. Request RFQ f","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","title":"5SY4204-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V 10kA, 2-pole, C, 4A, D=70 mm","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":"400 V","at DC rated value":"60 V","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","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","supply voltage with single-phase operation at AC rated value":"230 V","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":"$55.88 – $74.89","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ce4a74e8bc552a4fa75f85edb7c4c7a5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=311308&mlfb=5SY4204-7"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY4204-7?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time; the part is sourced to order through independent distribution."},{"question":"Will 5SY4204-7 drop into a panel that was specified around 5SL4363-7 without rewiring?","answer":"Both are 2-pole SENTRON MCBs with the same 36 mm width (2 MWU) and DIN-rail mounting, so the physical fit is identical. The key difference is the breaking capacity and trip curve — the 5SL4363-7 is a B-curve with different interrupting ratings. Check your panel's fault current and trip coordination before swapping."},{"question":"What compliance documentation does this brand provide for 5SY4204-7?","answer":"The breaker is certified to IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, and CSA C22.2 No. 235. It is halogen-free and silicon-free."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4204-7","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/5SY4204-7 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}}