{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4202-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4202-6","canonicalUrl":"https://aoctrl.com/siemens/5SY4202-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4202-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4202-6, 2-pole miniature circuit breaker, B characteristic, 2 A rated, 10 kA per EN 60898 / 35 kA per IEC 60947-2, 2 MW, IP20 with connected conductors, -40 to 75 °C.","salesMarkdown":"It snaps onto DIN rail (2 modular width units) and is designed for branch-circuit protection in industrial control panels, distribution boards, and OEM machinery. Temperature derating is published: at 35 °C the breaker is good for the full 2 A; at 40 °C it derates to 1.9 A, 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. If the enclosure ambient runs hot, size the load side accordingly — the breaker won't nuisance-trip, but continuous current capability drops. IP20 with connected conductors — the breaker itself is finger-safe only when wired; no washdown rating. Mount it inside a closed enclosure for wet or dusty areas. Energy limitation class 3 means it lets through less energy than class 1 or 2 under fault, reducing arc-flash and downstream stress on wiring. Certified to IEC/EN 60898-1 and IEC/EN 60947-2; also carries UL1077 recognition (supplementary protector). Halogen-free and silicon-free construction. Sealable terminals (can be locked with a seal cap for tamper-evident installations).","metaTitle":"Siemens 5SY4202-6 SENTRON MCB, 2P, B-2A, 10/35 kA","metaDescription":"Siemens 5SY4202-6 SENTRON 2-pole miniature circuit breaker, B characteristic, 2 A rated, 10 kA (EN 60898) / 35 kA (IEC 60947-2). Quoted to order on RFQ.","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":"5SY4202-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"MCB 400V AC 10kA, 2-pole, B, 2A, T=70mm","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":"2 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","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","Energy Limitation Class":"3","according to EN 61346-2":"F","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","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":"B","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 (Switching 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":"1.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2ff0cabf56d42dee7f28b646faf9806e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1385685&mlfb=5SY4202-6"},"ai":{"faq":[{"question":"Where can I buy 5SY4202-6 and how do I get a price?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time; no stock count or price is published here."},{"question":"What is the breaking capacity of 5SY4202-6?","answer":"10 kA per IEC/EN 60898-1 and 35 kA per IEC 60947-2 at 400/415 V. The 35 kA rating is the industrial figure that governs SCCR coordination in panel design."},{"question":"What compliance documentation does Siemens provide for 5SY4202-6?","answer":"The breaker carries IEC/EN 60898-1 and IEC/EN 60947-2 certifications, plus UL1077 recognition. It is halogen-free and silicon-free. Full declarations (CE, UKCA, RoHS) are available from the manufacturer."},{"question":"Will 5SY4202-6 drop into a panel specified for 5SY4140-7 without rewiring?","answer":"Both are 2-pole SENTRON MCBs with the same 2 MW form factor and DIN-rail mounting. The 5SY4202-6 is rated 2 A / B curve; the 5SY4140-7 is a 40 A / C curve. If the panel was wired for 40 A branch protection, swapping to a 2 A breaker would require load-side rework — the breaker fits mechanically but not electrically."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4202-6","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/5SY4202-6 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}}